1. A preparation method of a waterproof and moisture permeable radiation-proof fabric is characterized by comprising the following steps: the method comprises the following steps:

(1) preparing an outer layer fabric:

taking n-octadecane, sodium dodecyl benzene sulfonate, deionized water and ethyl orthosilicate to prepare microcapsules;

pentaerythritol, dimethylol propionic acid and an end capping agent are taken to react to prepare modified polyester;

taking microcapsules, a curing agent, terylene and modified polyester, co-extruding, spinning and tatting to prepare outer-layer fabric;

(2) preparing an inner layer fabric:

taking acrylonitrile, vinyl acetate, ethylene and 2-vinylpyridine for copolymerization to obtain a product A;

alcoholysis is carried out to obtain a product B;

reacting with glyoxal to prepare a modified polymer;

mixing the modified polymer, titanium oxide and polyamide 6, spinning and spinning to obtain an inner layer fabric;

(3) compounding:

and compounding the outer-layer fabric and the inner-layer fabric through a binder to obtain the radiation-proof fabric.

2. The preparation method of the waterproof and moisture permeable radiation protection fabric according to claim 1, characterized in that: the step (1) comprises the following steps:

a. preparing microcapsules:

heating n-octadecane to 40-50 ℃, stirring for melting, adding an aqueous solution of sodium dodecyl benzene sulfonate for mixing, adjusting the temperature of the system to 40-50 ℃, and stirring at 800-1000 rpm for 20-30 min;

adding tetraethoxysilane and gamma-glycidyl ether oxypropyltrimethoxysilane, adjusting the temperature of the system to 35-45 ℃, and stirring at 800-1000 rpm for 150-200 min;

washing with ethanol and petroleum ether for 2-3 times, carrying out vacuum filtration, and drying at room temperature for 12-24 h to obtain microcapsules;

b. preparing modified polyester:

mixing pentaerythritol and dimethylolpropionic acid, adding a catalyst, heating and stirring, heating to 135-145 ℃, keeping the temperature for 110-130 min, and reacting for 27-32 min;

adding n-butyric acid, preserving the heat for 110-130 min, and reacting for 27-32 min to prepare modified polyester;

c. preparing an outer layer fabric:

mixing the microcapsule, the anhydride curing agent and the pyridine, adding the terylene and the modified polyester, co-extruding, spinning and tatting to obtain the outer layer.

3. The preparation method of the waterproof and moisture permeable radiation protection fabric according to claim 2, characterized in that: in the step (1), the mass ratio of n-octadecane, sodium dodecyl benzene sulfonate, ethyl orthosilicate and gamma-glycidyl ether oxypropyltrimethoxysilane is 10 (1.2-1.8) to (18-21) to (0.2-0.4).

4. The preparation method of the waterproof and moisture permeable radiation protection fabric according to claim 2, characterized in that: in the step (1), the mass ratio of pentaerythritol to dimethylolpropionic acid to n-butyric acid is 10 (39-42) to 51-100.

5. The preparation method of the waterproof and moisture permeable radiation protection fabric according to claim 2, characterized in that: the mass ratio of the terylene, the modified polyester, the microcapsule, the anhydride curing agent and the pyridine in the step (1) is 100 (14-27): (10-18): 7-12): 0.04-0.06.

6. The preparation method of the waterproof and moisture permeable radiation protection fabric according to claim 1, characterized in that: the step (2) comprises the following steps:

a. preparing a modifier:

taking deionized water, heating to 40-45 ℃ in a nitrogen atmosphere, adding acrylonitrile, vinyl acetate, 2-vinylpyridine, dodecyl mercaptan and sodium bisulfite, mixing, filling ethylene, stirring for 5-10 min, adding a potassium persulfate solution, keeping the system temperature at 40-45 ℃, reacting for 180-200 min, filtering, washing, and drying at 60-80 ℃ to obtain a product A;

adding methanol, butanediol and dimethylformamide, slowly adding a 5% sodium hydroxide methanol solution at the temperature of 27-32 ℃, stirring, reacting for 30-35 min, adding the sodium hydroxide methanol solution again, reacting for 27-32 min at the temperature of 45-48 ℃, heating to 60-65 ℃, reacting for 55-65 min, cooling to room temperature, carrying out suction filtration, washing, and carrying out vacuum drying at the temperature of 50-60 ℃ to obtain a product B;

adding dimethylformamide, heating, stirring and dissolving, adjusting the temperature of the system to 50-100 ℃, adding glyoxal and hydrochloric acid, and reacting for 2-6 hours to obtain a modifier;

b. preparing an inner layer fabric:

adding sodium stearate into nano titanium oxide, and stirring at 350-400 rpm for 30-50 min at the temperature of 60-80 ℃ to obtain modified titanium oxide;

and (3) co-extruding polyamide 6, a modifier and modified titanium oxide, spinning and spinning to obtain the inner-layer fabric.

7. The preparation method of the waterproof and moisture permeable radiation protection fabric according to claim 6, characterized in that: the mass ratio of acrylonitrile, vinyl acetate, ethylene, 2-vinylpyridine, dodecyl mercaptan and sodium bisulfite is (60-74): 10-25): 3.8-8.8): 0-5): 1.5-2.6): 14.7-18.0.

8. The waterproof moisture-permeable radiation-proof fabric and the preparation method thereof according to claim 6, wherein the waterproof moisture-permeable radiation-proof fabric is characterized in that: the mass ratio of the polyamide 6 to the modifier to the modified titanium oxide is (10-20) to (2-5) 100.

9. The preparation method of the waterproof and moisture permeable radiation protection fabric according to claim 1, characterized in that: the adhesive is polyurethane, and the gluing amount is 10-15 g/m²The gluing pressure is 18-20N, and the bonding pressure is 28-30N.

10. A waterproof moisture-permeable radiation protective fabric produced by the method for producing a waterproof moisture-permeable radiation protective fabric according to any one of claims 1 to 9.

Background

Ultraviolet rays are invisible light in a high-energy region of sunlight and are classified into short waves, medium waves and long waves according to their own wavelengths. Wherein, the short wave causes great harm to human body, but can be completely absorbed by the ozone layer when passing through the atmosphere; the medium-wave ultraviolet rays are easily absorbed by the skin, so the medium-wave ultraviolet rays are also called as the sunburn (red) section of the ultraviolet rays, can cause the generation of erythema and pigmentation of the skin of a human body, and also have the carcinogenic risk; long-wave uv light penetrates the skin to the dermis and affects the melanin pigment on the skin surface, known as the "tan zone," which causes increased skin aging, dry cuts, and wrinkles. The ozone layer, which is located in the stratosphere, is the main absorption band of solar ultraviolet radiation. In recent years, ultraviolet radiation reaching the earth's surface has increased due to the destruction of the ozone layer. For every 1% reduction in atmospheric ozone concentration, the solar ultraviolet radiation reaching the surface will increase by 2%. Protecting the skin from excessive ultraviolet radiation is not only a beauty concern, but is also responsible for the health of the person. With the increasing expansion of entertainment and outdoor sports, outdoor sports clothes also have various types and styles, such as ski shirts, sport suits, swimsuits and the like, and meanwhile outdoor sports clothes also have multiple functions of wind resistance, water resistance, moisture permeability, air permeability and the like, but some outdoor sports clothes are mostly set in forest lands, and the application of outdoor sports clothes under ultraviolet radiation is less considered. Therefore, a waterproof and moisture permeable radiation-proof fabric and a preparation method thereof are provided.

Disclosure of Invention

The invention aims to provide a waterproof and moisture permeable radiation-proof fabric and a preparation method thereof, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: a preparation method of a waterproof and moisture permeable radiation-proof fabric comprises the following steps:

(1) preparing an outer layer fabric:

taking n-octadecane, sodium dodecyl benzene sulfonate, deionized water and ethyl orthosilicate to prepare microcapsules;

pentaerythritol, dimethylol propionic acid and an end capping agent are taken to react to prepare modified polyester;

taking microcapsules, a curing agent, terylene and modified polyester, co-extruding, spinning and tatting to prepare outer-layer fabric;

(2) preparing an inner layer fabric:

taking acrylonitrile, vinyl acetate, ethylene and 2-vinylpyridine for copolymerization to obtain a product A;

alcoholysis is carried out to obtain a product B;

reacting with glyoxal to prepare a modified polymer;

mixing the modified polymer, titanium oxide and polyamide 6, spinning and spinning to obtain an inner layer fabric;

(3) compounding:

and compounding the outer-layer fabric and the inner-layer fabric through a binder to obtain the radiation-proof fabric.

Further, the step (1) comprises the steps of:

a. preparing microcapsules:

heating n-octadecane to 40-50 ℃, stirring for melting, adding an aqueous solution of sodium dodecyl benzene sulfonate for mixing, adjusting the temperature of the system to 40-50 ℃, and stirring at 800-1000 rpm for 20-30 min;

adding tetraethoxysilane and gamma-glycidyl ether oxypropyltrimethoxysilane, adjusting the temperature of the system to 35-45 ℃, and stirring at 800-1000 rpm for 150-200 min;

washing with ethanol and petroleum ether for 2-3 times, carrying out vacuum filtration, and drying at room temperature for 12-24 h to obtain microcapsules;

b. preparing modified polyester:

mixing pentaerythritol and dimethylolpropionic acid, adding a catalyst, heating and stirring, heating to 135-145 ℃, keeping the temperature for 110-130 min, and reacting for 27-32 min;

adding n-butyric acid, preserving the heat for 110-130 min, and reacting for 27-32 min to prepare modified polyester;

c. preparing an outer layer fabric:

mixing the microcapsule, the anhydride curing agent and the pyridine, adding the terylene and the modified polyester, co-extruding, spinning and tatting to obtain the outer layer.

In the technical scheme, tetraethoxysilane and gamma-glycidyl ether oxypropyl trimethoxy silane form wall material KH-560 coupling agent modified silicon dioxide of the microcapsule, so that heat brought by solar irradiation can be effectively isolated, and the prepared outer-layer fabric is cooled for a long time by combining with a core material n-octadecane, and can reflect different wavelengths and ultraviolet rays to endow the prepared fabric with radiation resistance; through the reaction of pentaerythritol and dimethylolpropionic acid and the end capping by using n-butyric acid, the branched polyester with flexible end capping, namely modified polyester, is obtained; meanwhile, the microcapsule is modified by using a KH-560 coupling agent, contains an epoxy group, can be polymerized and modified with modified polyester under the action of an anhydride curing agent, can reinforce and toughen terylene, and improves the compatibility between the microcapsule and the terylene;

furthermore, the mass ratio of the n-octadecane, the sodium dodecyl benzene sulfonate, the ethyl orthosilicate and the gamma-glycidyl ether oxypropyl trimethoxy silane in the step (1) is 10 (1.2-1.8) to (18-21) to (0.2-0.4).

Furthermore, the mass ratio of the pentaerythritol to the dimethylolpropionic acid to the n-butyric acid in the step (1) is 10 (39-42) to 51-100.

Furthermore, the mass ratio of the terylene, the modified polyester, the microcapsule, the anhydride curing agent and the pyridine in the step (1) is 100 (14-27): (10-18): (7-12): 0.04-0.06).

Further, the step (2) comprises the following steps:

a. preparing a modifier:

taking deionized water, heating to 40-45 ℃ in a nitrogen atmosphere, adding acrylonitrile, vinyl acetate, 2-vinylpyridine, dodecyl mercaptan and sodium bisulfite, mixing, filling ethylene, stirring for 5-10 min, adding a potassium persulfate solution, keeping the system temperature at 40-45 ℃, reacting for 180-200 min, filtering, washing, and drying at 60-80 ℃ to obtain a product A;

adding methanol, butanediol and dimethylformamide, slowly adding a 5% sodium hydroxide methanol solution at the temperature of 27-32 ℃, stirring, reacting for 30-35 min, adding the sodium hydroxide methanol solution again, reacting for 27-32 min at the temperature of 45-48 ℃, heating to 60-65 ℃, reacting for 55-65 min, cooling to room temperature, carrying out suction filtration, washing, and carrying out vacuum drying at the temperature of 50-60 ℃ to obtain a product B;

adding dimethylformamide, heating, stirring and dissolving, adjusting the temperature of the system to 50-100 ℃, adding glyoxal and hydrochloric acid, and reacting for 2-6 hours to obtain a modifier;

b. preparing an inner layer fabric:

adding sodium stearate into nano titanium oxide, and stirring at 350-400 rpm for 30-50 min at the temperature of 60-80 ℃ to obtain modified titanium oxide;

and (3) co-extruding polyamide 6, a modifier and modified titanium oxide, spinning and spinning to obtain the inner layer.

In the technical scheme, acrylonitrile, vinyl acetate, ethylene and 2-vinylpyridine are copolymerized, then vinyl acetate is subjected to alcoholysis to obtain vinyl alcohol, the vinyl alcohol reacts with glyoxal to obtain vinyl acetal, a modifier acrylonitrile-ethylene-vinyl acetal polymer is prepared, and the acrylonitrile is partially hydrolyzed, so that the pore connectivity of the prepared inner layer fabric can be improved, and the waterproof and moisture permeable performances of the inner layer fabric are improved while the moisture permeability is ensured; the fabric is mixed with sodium stearate modified nano titanium oxide and polyamide 6, so that the temperature adjustment of the inner layer fabric to human heat can be promoted, and the radiation resistance of the prepared fabric is further enhanced;

further, the mass ratio of the acrylonitrile, the vinyl acetate, the ethylene, the 2-vinylpyridine, the dodecyl mercaptan and the sodium bisulfite is (60-74): 10-25): 3.8-8.8): 0-5): 1.5-2.6): 14.7-18.0.

Further, the mass ratio of the polyamide 6 to the modifier to the modified titanium oxide is (10-20) to (2-5) 100.

Further, the adhesive is polyurethane, and the gluing amount is 10-15 g/m²The gluing pressure is 18-20N, and the bonding pressure is 28-30N.

Compared with the prior art, the invention has the following beneficial effects:

according to the preparation method of the waterproof and moisture permeable radiation-proof fabric, the outer layer fabric is obtained through the phase-change microcapsule, the modified polyester and the terylene, the inner layer fabric is obtained through modification of the acrylonitrile-ethylene-vinyl acetal copolymerization modifier and the modified titanium oxide, and the two are compounded, so that the waterproof, moisture permeable and air permeable performances of the fabric are improved, the mechanical property and the radiation-proof performance of the fabric are improved, the absorption of external heat and the internal temperature regulation can be blocked, and the comfort of a human body is improved.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

(1) Preparing an outer layer fabric:

a. preparing microcapsules:

heating n-octadecane to 40 ℃, stirring for melting, adding an aqueous solution of sodium dodecyl benzene sulfonate for mixing, adjusting the system temperature to 40 ℃, and stirring at 800rpm for 20 min;

adding tetraethoxysilane and gamma-glycidoxypropyltrimethoxysilane, adjusting the temperature of the system to 35 ℃, and stirring at 800rpm for 150 min;

washing with ethanol and petroleum ether for 2 times, vacuum filtering, and drying at room temperature for 12 hr to obtain microcapsule;

the mass ratio of n-octadecane to sodium dodecyl benzene sulfonate to ethyl orthosilicate to gamma-glycidyl ether oxypropyl trimethoxysilane is 10:1.2:18: 0.2;

b. preparing modified polyester:

mixing pentaerythritol and dimethylolpropionic acid, adding a catalyst p-toluenesulfonic acid, heating and stirring, heating to 135 ℃, preserving heat for 110min, and reacting for 27 min;

adding an end-capping reagent n-butyric acid, preserving the heat for 110min, and reacting for 27min to obtain modified polyester;

the mass ratio of pentaerythritol to dimethylolpropionic acid to n-butyric acid is 10:39: 51;

c. preparing an outer layer fabric:

mixing microcapsules, anhydride curing agent glutaric anhydride and pyridine, adding terylene and modified polyester, co-extruding, spinning and tatting to obtain an outer-layer fabric;

the mass ratio of the terylene to the modified polyester to the microcapsule to the anhydride curing agent to the pyridine is 100:14:10:7: 0.04;

(2) preparing an inner layer fabric:

a. preparing a modifier:

taking deionized water, heating to 40 ℃ in a nitrogen atmosphere, adding acrylonitrile, vinyl acetate, 2-vinylpyridine, dodecyl mercaptan and sodium bisulfite, mixing, charging ethylene, stirring for 5min, adding a potassium persulfate solution, keeping the system temperature at 40 ℃, reacting for 180min, filtering, washing, and drying at 60 ℃ to obtain a product A;

adding methanol, butanediol and dimethylformamide, slowly adding a 5% sodium hydroxide methanol solution at the temperature of 27 ℃, stirring, reacting for 30min, adding the sodium hydroxide methanol solution again, reacting for 27min at the temperature of 45 ℃, heating to 60 ℃, reacting for 55min, cooling to room temperature, performing suction filtration, washing, and performing vacuum drying at the temperature of 50 ℃ to obtain a product B;

adding dimethylformamide, heating, stirring and dissolving, adjusting the temperature of the system to 50 ℃, adding glyoxal and hydrochloric acid, and reacting for 2 hours to obtain a modifier;

the mass ratio of acrylonitrile to vinyl acetate to ethylene to 2-vinylpyridine to dodecyl mercaptan to sodium bisulfite is 60:10:3.8:1:1.5: 14.7;

b. preparing an inner layer fabric:

adding sodium stearate into nano titanium oxide, and stirring at 350rpm for 30min at 60 ℃ to obtain modified titanium oxide;

co-extruding polyamide 6, a modifier and modified titanium oxide, spinning and spinning to obtain an inner layer fabric;

the mass ratio of the polyamide 6 to the modifier to the modified titanium oxide is 100:10: 2;

(3) compounding:

compounding the outer-layer fabric and the inner-layer fabric through a binder to obtain an anti-radiation fabric;

the adhesive is polyurethane, and the coating amount is 10g/m²Gluing pressure 18N and applying pressure 28N.

Example 2

(1) Preparing an outer layer fabric:

a. preparing microcapsules:

heating n-octadecane to 45 ℃, stirring for melting, adding an aqueous solution of sodium dodecyl benzene sulfonate for mixing, adjusting the temperature of the system to 45 ℃, and stirring at 900rpm for 25 min;

adding tetraethoxysilane and gamma-glycidoxypropyltrimethoxysilane, adjusting the temperature of the system to 40 ℃, and stirring at 900rpm for 170 min;

washing with ethanol and petroleum ether for 3 times, vacuum filtering, and drying at room temperature for 18 hr to obtain microcapsule;

the mass ratio of n-octadecane to sodium dodecyl benzene sulfonate to ethyl orthosilicate to gamma-glycidyl ether oxypropyl trimethoxysilane is 10:1.5:20: 0.3;

b. preparing modified polyester:

mixing pentaerythritol and dimethylolpropionic acid, adding a catalyst p-toluenesulfonic acid, heating and stirring, heating to 140 ℃, keeping the temperature for 120min, and reacting for 30 min;

adding an end-capping reagent n-butyric acid, preserving the heat for 120min, and reacting for 30min to obtain modified polyester;

the mass ratio of pentaerythritol to dimethylolpropionic acid to n-butyric acid is 10:40: 75;

c. preparing an outer layer fabric:

mixing microcapsules, anhydride curing agent glutaric anhydride and pyridine, adding terylene and modified polyester, co-extruding, spinning and tatting to obtain an outer-layer fabric;

the mass ratio of the terylene to the modified polyester to the microcapsule to the anhydride curing agent to the pyridine is 100:20:14:10: 0.05;

(2) preparing an inner layer fabric:

a. preparing a modifier:

taking deionized water, heating to 42 ℃ in a nitrogen atmosphere, adding acrylonitrile, vinyl acetate, 2-vinylpyridine, dodecyl mercaptan and sodium bisulfite, mixing, charging ethylene, stirring for 7min, adding a potassium persulfate solution, keeping the system temperature at 42 ℃, reacting for 190min, filtering, washing, and drying at 70 ℃ to obtain a product A;

adding methanol, butanediol and dimethylformamide, slowly adding a 5% sodium hydroxide methanol solution at the temperature of 30 ℃, stirring, reacting for 32min, adding the sodium hydroxide methanol solution again, reacting for 30min at the temperature of 47 ℃, heating to 62 ℃, reacting for 60min, cooling to room temperature, performing suction filtration, washing, and performing vacuum drying at the temperature of 55 ℃ to obtain a product B;

adding dimethylformamide, heating, stirring and dissolving, adjusting the temperature of the system to 75 ℃, adding glyoxal and hydrochloric acid, and reacting for 4 hours to obtain a modifier;

the mass ratio of acrylonitrile to vinyl acetate to ethylene to 2-vinylpyridine to dodecyl mercaptan to sodium bisulfite is 67:17:5.9:3:2.0: 16.2;

b. preparing an inner layer fabric:

adding sodium stearate into nano titanium oxide, and stirring at 370rpm for 40min at 70 ℃ to obtain modified titanium oxide;

co-extruding polyamide 6, a modifier and modified titanium oxide, spinning and spinning to obtain an inner layer fabric;

the mass ratio of the polyamide 6 to the modifier to the modified titanium oxide is 100:15: 3;

(3) compounding:

compounding the outer-layer fabric and the inner-layer fabric through a binder to obtain an anti-radiation fabric;

the adhesive is polyurethane, and the coating weight is 12g/m²Gluing pressure 19N and bonding pressure 29N.

Example 3

(1) Preparing an outer layer fabric:

a. preparing microcapsules:

heating n-octadecane to 50 ℃, stirring for melting, adding an aqueous solution of sodium dodecyl benzene sulfonate for mixing, adjusting the system temperature to 50 ℃, and stirring for 30min at 1000 rpm;

adding tetraethoxysilane and gamma-glycidoxypropyltrimethoxysilane, adjusting the temperature of the system to 45 ℃, and stirring at 1000rpm for 200 min;

washing with ethanol and petroleum ether for 3 times, vacuum filtering, and drying at room temperature for 24 hr to obtain microcapsule;

the mass ratio of n-octadecane to sodium dodecyl benzene sulfonate to ethyl orthosilicate to gamma-glycidyl ether oxypropyl trimethoxysilane is 10:1.8:21: 0.4;

b. preparing modified polyester:

mixing pentaerythritol and dimethylolpropionic acid, adding a catalyst p-toluenesulfonic acid, heating and stirring, heating to 145 ℃, preserving heat for 130min, and reacting for 32 min;

adding an end-capping reagent n-butyric acid, preserving the heat for 130min, and reacting for 32min to obtain modified polyester;

the mass ratio of pentaerythritol to dimethylolpropionic acid to n-butyric acid is 10:42: 100;

c. preparing an outer layer fabric:

mixing microcapsules, anhydride curing agent glutaric anhydride and pyridine, adding terylene and modified polyester, co-extruding, spinning and tatting to obtain an outer-layer fabric;

the mass ratio of the terylene to the modified polyester to the microcapsule to the anhydride curing agent to the pyridine is 100:27:18:12: 0.06;

(2) preparing an inner layer fabric:

a. preparing a modifier:

taking deionized water, heating to 45 ℃ in a nitrogen atmosphere, adding acrylonitrile, vinyl acetate, 2-vinylpyridine, dodecyl mercaptan and sodium bisulfite, mixing, charging ethylene, stirring for 10min, adding a potassium persulfate solution, keeping the system temperature at 45 ℃, reacting for 200min, filtering, washing, and drying at 80 ℃ to obtain a product A;

adding methanol, butanediol and dimethylformamide, slowly adding a 5% sodium hydroxide methanol solution at the temperature of 32 ℃, stirring, reacting for 35min, adding the sodium hydroxide methanol solution again, reacting for 32min at the temperature of 48 ℃, heating to 65 ℃, reacting for 65min, cooling to room temperature, performing suction filtration, washing, and performing vacuum drying at the temperature of 60 ℃ to obtain a product B;

adding dimethylformamide, heating, stirring and dissolving, adjusting the temperature of the system to 100 ℃, adding glyoxal and hydrochloric acid, and reacting for 6 hours to obtain a modifier;

the mass ratio of acrylonitrile to vinyl acetate to ethylene to 2-vinylpyridine to dodecyl mercaptan to sodium bisulfite is 74:25:8.8:5:2.6: 18.0;

b. preparing an inner layer fabric:

adding sodium stearate into nano titanium oxide, and stirring at 400rpm for 50min at 80 ℃ to obtain modified titanium oxide;

co-extruding polyamide 6, a modifier and modified titanium oxide, spinning and spinning to obtain an inner layer fabric;

the mass ratio of the polyamide 6 to the modifier to the modified titanium oxide is 100:20: 5;

(3) compounding:

compounding the outer-layer fabric and the inner-layer fabric through a binder to obtain an anti-radiation fabric;

the adhesive is polyurethane, and the coating amount is 15g/m²Gluing pressure of 20N and laminating pressure of 30N.

Comparative example 1

(1) Preparing an outer layer fabric:

a. preparing microcapsules:

heating n-octadecane to 45 ℃, stirring for melting, adding an aqueous solution of sodium dodecyl benzene sulfonate for mixing, adjusting the temperature of the system to 45 ℃, and stirring at 900rpm for 25 min; slowly adding calcium chloride water solution, stirring at 1000rpm for 3h, slowly adding sodium carbonate water solution, reacting at 800rpm for 3h

Washing with ethanol and petroleum ether for 3 times, vacuum filtering, and drying at room temperature for 18 hr to obtain microcapsule;

b. preparing modified polyester:

mixing pentaerythritol and dimethylolpropionic acid, adding a catalyst p-toluenesulfonic acid, heating and stirring, heating to 140 ℃, keeping the temperature for 120min, and reacting for 30 min;

adding an end-capping reagent n-butyric acid, preserving the heat for 120min, and reacting for 30min to obtain modified polyester;

the mass ratio of pentaerythritol to dimethylolpropionic acid to n-butyric acid is 10:40: 75;

c. preparing an outer layer fabric:

mixing microcapsules, anhydride curing agent glutaric anhydride and pyridine, adding terylene and modified polyester, co-extruding, spinning and tatting to obtain an outer-layer fabric;

the mass ratio of the terylene to the modified polyester to the microcapsule to the anhydride curing agent to the pyridine is 100:20:14:10: 0.05;

(2) preparing an inner layer fabric:

a. preparing a modifier:

taking deionized water, heating to 42 ℃ in a nitrogen atmosphere, adding acrylonitrile, vinyl acetate, 2-vinylpyridine, dodecyl mercaptan and sodium bisulfite, mixing, charging ethylene, stirring for 7min, adding a potassium persulfate solution, keeping the system temperature at 42 ℃, reacting for 190min, filtering, washing, and drying at 70 ℃ to obtain a product A;

adding methanol, butanediol and dimethylformamide, slowly adding a 5% sodium hydroxide methanol solution at the temperature of 30 ℃, stirring, reacting for 32min, adding the sodium hydroxide methanol solution again, reacting for 30min at the temperature of 47 ℃, heating to 62 ℃, reacting for 60min, cooling to room temperature, performing suction filtration, washing, and performing vacuum drying at the temperature of 55 ℃ to obtain a product B;

adding dimethylformamide, heating, stirring and dissolving, adjusting the temperature of the system to 75 ℃, adding glyoxal and hydrochloric acid, and reacting for 4 hours to obtain a modifier;

the mass ratio of acrylonitrile to vinyl acetate to ethylene to 2-vinylpyridine to dodecyl mercaptan to sodium bisulfite is 67:17:5.9:3:2.0: 16.2;

b. preparing an inner layer fabric:

adding sodium stearate into nano titanium oxide, and stirring at 370rpm for 40min at 70 ℃ to obtain modified titanium oxide;

co-extruding polyamide 6, a modifier and modified titanium oxide, spinning and spinning to obtain an inner layer fabric;

the mass ratio of the polyamide 6 to the modifier to the modified titanium oxide is 100:15: 3;

(3) compounding:

compounding the outer-layer fabric and the inner-layer fabric through a binder to obtain an anti-radiation fabric;

the adhesive is polyurethane, and the coating weight is 12g/m²Gluing pressure 19N and bonding pressure 29N.

Comparative example 2

(1) Preparing an outer layer fabric:

a. preparing microcapsules:

heating n-octadecane to 45 ℃, stirring for melting, adding an aqueous solution of sodium dodecyl benzene sulfonate for mixing, adjusting the temperature of the system to 45 ℃, and stirring at 900rpm for 25 min;

adding tetraethoxysilane and gamma-glycidoxypropyltrimethoxysilane, adjusting the temperature of the system to 40 ℃, and stirring at 900rpm for 170 min;

washing with ethanol and petroleum ether for 3 times, vacuum filtering, and drying at room temperature for 18 hr to obtain microcapsule;

the mass ratio of n-octadecane to sodium dodecyl benzene sulfonate to ethyl orthosilicate to gamma-glycidyl ether oxypropyl trimethoxysilane is 10:1.5:20: 0.3;

b. preparing an outer layer fabric:

taking microcapsules, adding polyester fibers, co-extruding, spinning and tatting to obtain an outer-layer fabric; the mass ratio of the terylene to the microcapsule is 100: 20;

(2) preparing an inner layer fabric:

a. preparing a modifier:

taking deionized water, heating to 42 ℃ in a nitrogen atmosphere, adding acrylonitrile, vinyl acetate, 2-vinylpyridine, dodecyl mercaptan and sodium bisulfite, mixing, charging ethylene, stirring for 7min, adding a potassium persulfate solution, keeping the system temperature at 42 ℃, reacting for 190min, filtering, washing, and drying at 70 ℃ to obtain a product A;

adding methanol, butanediol and dimethylformamide, slowly adding a 5% sodium hydroxide methanol solution at the temperature of 30 ℃, stirring, reacting for 32min, adding the sodium hydroxide methanol solution again, reacting for 30min at the temperature of 47 ℃, heating to 62 ℃, reacting for 60min, cooling to room temperature, performing suction filtration, washing, and performing vacuum drying at the temperature of 55 ℃ to obtain a product B;

adding dimethylformamide, heating, stirring and dissolving, adjusting the temperature of the system to 75 ℃, adding glyoxal and hydrochloric acid, and reacting for 4 hours to obtain a modifier;

the mass ratio of acrylonitrile to vinyl acetate to ethylene to 2-vinylpyridine to dodecyl mercaptan to sodium bisulfite is 67:17:5.9:3:2.0: 16.2;

b. preparing an inner layer fabric:

adding sodium stearate into nano titanium oxide, and stirring at 370rpm for 40min at 70 ℃ to obtain modified titanium oxide;

co-extruding polyamide 6, a modifier and modified titanium oxide, spinning and spinning to obtain an inner layer fabric;

the mass ratio of the polyamide 6 to the modifier to the modified titanium oxide is 100:15: 3;

(3) compounding:

compounding the outer-layer fabric and the inner-layer fabric through a binder to obtain an anti-radiation fabric;

the adhesive is polyurethane, the gluing amount is 12g/m2, the gluing pressure is 19N, and the attaching pressure is 29N.

Comparative example 3

(1) Preparing an outer layer fabric:

a. preparing microcapsules:

heating n-octadecane to 45 ℃, stirring for melting, adding an aqueous solution of sodium dodecyl benzene sulfonate for mixing, adjusting the temperature of the system to 45 ℃, and stirring at 900rpm for 25 min;

adding tetraethoxysilane and gamma-glycidoxypropyltrimethoxysilane, adjusting the temperature of the system to 40 ℃, and stirring at 900rpm for 170 min;

washing with ethanol and petroleum ether for 3 times, vacuum filtering, and drying at room temperature for 18 hr to obtain microcapsule;

the mass ratio of n-octadecane to sodium dodecyl benzene sulfonate to ethyl orthosilicate to gamma-glycidyl ether oxypropyl trimethoxysilane is 10:1.5:20: 0.3;

b. preparing modified polyester:

mixing pentaerythritol and dimethylolpropionic acid, adding a catalyst p-toluenesulfonic acid, heating and stirring, heating to 140 ℃, keeping the temperature for 120min, and reacting for 30 min;

adding an end-capping reagent n-butyric acid, preserving the heat for 120min, and reacting for 30min to obtain modified polyester;

the mass ratio of pentaerythritol to dimethylolpropionic acid to n-butyric acid is 10:40: 75;

c. preparing an outer layer fabric:

mixing microcapsules, anhydride curing agent glutaric anhydride and pyridine, adding terylene and modified polyester, co-extruding, spinning and tatting to obtain an outer-layer fabric;

the mass ratio of the terylene to the modified polyester to the microcapsule to the anhydride curing agent to the pyridine is 100:20:14:10: 0.05;

(2) preparing an inner layer fabric:

a. preparing a modifier:

adding ethylene-vinyl alcohol copolymer into dimethylformamide, heating, stirring and dissolving, adjusting the system temperature to 75 ℃, adding glyoxal and hydrochloric acid, and reacting for 4 hours to obtain a modifier;

b. preparing an inner layer fabric:

adding sodium stearate into nano titanium oxide, and stirring at 370rpm for 40min at 70 ℃ to obtain modified titanium oxide;

co-extruding polyamide 6, a modifier and modified titanium oxide, spinning and spinning to obtain an inner layer fabric;

the mass ratio of the polyamide 6 to the modifier to the modified titanium oxide is 100:15: 3;

(3) compounding:

compounding the outer-layer fabric and the inner-layer fabric through a binder to obtain an anti-radiation fabric;

the adhesive is polyurethane, and the coating weight is 12g/m²Gluing pressure 19N and bonding pressure 29N.

Comparative example 4

(1) Preparing an outer layer fabric:

spinning and tatting terylene to obtain an outer layer fabric;

(2) preparing an inner layer fabric:

adding sodium stearate into nano titanium oxide, and stirring at 370rpm for 40min at 70 ℃ to obtain modified titanium oxide;

co-extruding polyamide 6 and modified titanium oxide, spinning and spinning to obtain an inner layer fabric;

the mass ratio of polyamide 6 to modified titanium oxide is 100: 3;

(3) compounding:

compounding the outer-layer fabric and the inner-layer fabric through a binder to obtain an anti-radiation fabric;

the adhesive is polyurethane, and the coating weight is 12g/m²Gluing pressure 19N and bonding pressure 29N.

Experiment of

Samples are prepared from the radiation-proof fabrics obtained in examples 1-3 and comparative examples 1-3, and the performances of the samples are detected and the detection results are recorded.

Waterproof performance: observing the wetting condition of the sample by contrasting a spraying method waterproof test comparison chart and evaluating the waterproof grade by taking AATCC 22-2005 as a standard;

mechanical properties: the breaking strength of the sample is measured by taking GB/T3923.1-1997 as a standard;

air permeability: measuring the air permeability of the sample by taking GB/T5453-1997 as a standard;

moisture permeability: measuring the moisture permeability of the sample by taking GB/T12704.1-2009 as a standard;

radiation protection performance: measuring the transmittance and UPF value of the sample by using GB/T18830 as a standard;

thermal resistance: measuring the thermal resistance of the sample by taking GB/T11048-2008 as a standard;

from the data in the table above, it is clear that the following conclusions can be drawn:

the radiation protection fabrics obtained in examples 1 to 3 are compared with the radiation protection fabrics obtained in comparative examples 1 to 3, and the detection results show that:

1. compared with the comparative example 4, the radiation-proof fabrics obtained in the examples 1 to 3 have obviously improved waterproof grade, UPF value, breaking strength and thermal resistance, improved air permeability and moisture permeability, and obviously reduced UVA transmissivity and UVB transmissivity, which fully shows that the invention realizes the improvement of waterproof, air permeability, radiation-proof performance and mechanical property of the prepared radiation-proof fabric;

2. compared with the example 2, the preparation components of the microcapsules in the outer fabric of the comparative example 1 are different, the modified polyester is not added in the outer fabric of the comparative example 2, the preparation components of the modifier in the inner fabric of the comparative example 3 are different, the outer fabric of the comparative example 4 is terylene, and the modifier is not added in the inner fabric, so that the waterproof grade, the UPF value, the breaking strength, the thermal resistance, the air permeability, the moisture permeability, the UVA transmissivity and the UVB transmissivity of the inner fabric are respectively degraded.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process method article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process method article or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.