1. A cable comprising a carbon nanotube antifouling coating, characterized in that: including the rope body (1) and protective coat (2), protective coat (2) are network structure parcel outside rope body (1), protective coat (2) surface and rope body (1) exposed part coating have antifouling coating (3), antifouling coating (3) are carbon nanotube composite coating, protective coat (2) and rope body (1) are connected in antifouling coating (3).

2. A cable containing a carbon nanotube antifouling coating according to claim 1, characterized in that: the rope body (1) comprises an inner core (11) and filter cloth (12), the filter cloth (12) is obliquely wound on the outer surface of the inner core (11), and the antifouling coating (3) is connected with the filter cloth (12) and the protective outer sleeve (2).

3. A cable containing a carbon nanotube antifouling coating according to claim 1, characterized in that: the antifouling coating (3) comprises KH550, a defoaming agent, xylene, carbon nanotubes, chlorinated polyether resin and an antifouling agent, and the mass percentages of the components are as follows: 1% of KH550, 1% of defoaming agent, 80% of dimethylbenzene, 3% -7% of carbon nano tube, 8% -12% of chlorinated polyether resin and 3% of antifouling agent.

4. A method for preparing an antifouling coating in a cable containing a carbon nano tube antifouling coating is characterized by comprising the following steps: the method comprises the following specific steps:

s1, preparing an antifouling coating paint solution;

s2, coating the antifouling coating solution on the wire rope;

s3, detecting the antifouling effect of the antifouling coating; suspending the rope in a seawater simulation environment for antifouling effect detection, and detecting the effect of algae adhesion after one week and one month respectively for representing the antifouling effect;

s4, detecting the wear-resisting effect of the cord; carrying out wear resistance test on the cord by using a wear detection device, and recording the friction times required by the cord being broken for representing the wear resistance effect;

s5, determining the formula proportion of the antifouling coating corresponding to the best antifouling effect and the best wear-resistant effect, and repeating the steps S1 to S2 according to the formula proportion to finish the preparation.

5. The method for preparing an antifouling coating on a cable comprising a carbon nanotube antifouling coating as claimed in claim 4, wherein: the step S1 specifically includes the following steps:

s11, adding KH550 and a defoaming agent into xylene, wherein the mass percentages of the KH500 and the defoaming agent are respectively 1% and 80% respectively;

s12, adding 3-7% by mass of carbon nanotubes into xylene, and stirring at high speed for 5-6 h at room temperature;

s13, adding chlorinated polyether resin, wherein the mass percent of the chlorinated polyether resin is 8% -12%, and the sum of the mass percent of the added chlorinated polyether resin and the mass percent of the carbon nano tube added in the step S12 is 15%;

and S14, adding an antifouling agent, wherein the mass percent of the antifouling agent is 3%, and stirring at a high speed to form a coating solution to complete the preparation of the antifouling coating solution.

6. The method for preparing an antifouling coating on a cable comprising a carbon nanotube antifouling coating as claimed in claim 5, wherein: the step S2 specifically includes the following steps:

s21, soaking the wire rope in the coating solution, taking out the wire rope, and sucking off the excessive coating solution;

and S22, placing the string in a drying device for drying treatment.

7. The method for preparing an antifouling coating on a cable comprising a carbon nanotube antifouling coating as claimed in claim 5, wherein: in the step S11, the defoaming agent is a polyether defoaming agent.

8. The method for preparing an antifouling coating on a cable comprising a carbon nanotube antifouling coating as claimed in claim 5, wherein: in the step S14, the anti-fouling agent is added and then the high-speed stirring time is 1-2 h.

9. The method for preparing an antifouling coating on a cable comprising a carbon nanotube antifouling coating as claimed in claim 6, wherein: in the step S21, the soaking time of the thread rope in the coating solution is 4-6 h.

10. The method for preparing an antifouling coating on a cable comprising a carbon nanotube antifouling coating as claimed in claim 6, wherein: in the step S22, the temperature of the drying equipment is 70-80 ℃, and the drying time is 4-5 h.

Background

With the competition of various countries in the world for marine resources, the development of marine oil and gas resources is gradually shifted to high efficiency. In terms of ship positioning, the long service life of the mooring rope is one of key factors influencing oil and gas exploitation work, so that the future high-tech synthetic fiber mooring rope has a wider application prospect in mooring engineering. In the process of using the cable in the exploitation of ocean oil and gas resources, the adhesion phenomena of microorganisms, seaweeds and the like often occur, and the adhesion organisms can secrete acidic metabolites and decompose a high polymer matrix for self growth, so that the service life of the cable is shortened.

Therefore, the surface of the cable is usually provided with an anti-fouling coating to prevent the attachment of microorganisms, algae, etc. For example, in the marine mesh antifouling coating disclosed in chinese patent CN110724424A and the preparation method thereof, the antifouling coating is synthesized to protect the mesh, but the antifouling coating falls off due to twisting and bending of the cable in water, and the combination of the antifouling coating and the fiber is not tight enough, and the coating is easily washed by silt in water and falls off, so that the protection effect cannot be achieved.

Disclosure of Invention

The invention aims to overcome at least one defect in the prior art, and provides a cable containing a carbon nano tube antifouling coating and a preparation method of the antifouling coating, which can solve the problems of poor flexibility of the antifouling coating and low bonding strength of the antifouling coating and cable fibers, effectively improve the bonding degree of the antifouling coating and the cable fibers, improve the flexibility of the cable and improve the antifouling performance of the cable.

In order to solve the technical problems, the invention adopts the technical scheme that:

the utility model provides a hawser that contains antifouling coating of carbon nanotube, includes the rope body and protective sheath, protective sheath is network structure parcel outside the rope body, the coating of the exposed part of protective sheath surface and rope body has antifouling coating, antifouling coating is carbon nanotube composite coating, antifouling coating connects protective sheath and rope body.

By adopting the technical scheme, the carbon nano tube has good flexibility, high tensile strength and high elastic modulus, so that the composite antifouling coating can show good strength, elasticity, fatigue resistance and isotropy, and the performance of the antifouling coating is greatly improved. Therefore, the carbon nano tube composite antifouling coating is directly connected with the protective outer sleeve and the cable body, so that the combination degree of the antifouling coating and the cable fiber can be effectively improved, the flexibility of the cable is improved, the antifouling performance of the cable is improved, and the service life of the cable is further prolonged. The mooring rope comprises a rope body and a protective outer sleeve, the protective outer sleeve can protect the rope body, abrasion caused by long-time use of the rope body is avoided, and the service life of the mooring rope is effectively prolonged.

Further, the rope body comprises an inner core and filter cloth, the filter cloth is wound and wrapped on the outer surface of the inner core in an inclined mode, and the antifouling coating is connected with the filter cloth and the protective outer sleeve.

Through adopting above-mentioned technical scheme, the rope body includes inner core and filter cloth, and filter cloth slope winding parcel is at the inner core surface, and filter cloth can effectively block the soil particle that surpasss 5 microns like this, improves sand prevention ability, and then improves wear-resisting, the corrosion resisting ability of rope body inner core, improves the life of the rope body.

Further, the antifouling coating comprises KH550 (amino functional silane), a defoaming agent, xylene, carbon nanotubes, chlorinated polyether resin and an antifouling agent, wherein the mass percentages of the components are as follows: 1% of KH550, 1% of defoaming agent, 80% of dimethylbenzene, 3% -7% of carbon nano tube, 8% -12% of chlorinated polyether resin and 3% of antifouling agent.

By adopting the scheme, the anti-fouling coating is prepared by mixing the KH550, the defoaming agent, the dimethylbenzene, the carbon nano tubes, the epichlorohydrin resin and the anti-fouling agent, and the KH550 can greatly improve the bending strength and the compressive strength of the anti-fouling coating and has an excellent adhesion promoting effect; the defoaming agent can eliminate and inhibit foams, and the dimethylbenzene is a common solvent for the antifouling paint; the carbon nano tube has good flexibility, high tensile strength and high elastic modulus, so that the composite antifouling coating can show good strength, elasticity, fatigue resistance and isotropy, and the performance of the antifouling coating is greatly improved; the chlorinated polyether resin has excellent anticorrosive performance, and the antifouling agent has excellent antifouling performance. The antifouling coating prepared by mixing the components has simple components, but can effectively improve the combination degree of the antifouling coating and the cable fiber, improve the flexibility of the cable, improve the antifouling performance of the cable and further prolong the service life of the cable.

A preparation method of an antifouling coating in a cable containing a carbon nano tube antifouling coating comprises the following specific steps:

s1, preparing an antifouling coating paint solution;

s11, adding KH550 and a defoaming agent into xylene, wherein the mass percentages of the KH500 and the defoaming agent are respectively 1% and 80% respectively;

s12, adding 3-7% by mass of carbon nanotubes into xylene, and stirring at high speed for 5-6 h at room temperature;

s13, adding chlorinated polyether resin, wherein the mass percent of the chlorinated polyether resin is 8% -12%, and the sum of the mass percent of the added chlorinated polyether resin and the mass percent of the carbon nano tube added in the step S12 is 15%;

s14, adding an antifouling agent, wherein the mass percent of the antifouling agent is 3%, stirring at a high speed to form a coating solution, and finishing the preparation of the antifouling coating solution;

s2, coating an antifouling coating;

s21, soaking the experimental cord in the coating solution, taking out the experimental cord, and sucking off the excessive coating solution;

s22, placing the experimental cord in drying equipment for drying treatment;

s3, detecting the antifouling effect of the antifouling coating; suspending the experimental cotton rope in a seawater simulation environment for antifouling effect detection, and detecting the effect of algae adhesion after one week and one month respectively;

s4, performing an experiment cotton rope abrasion resistance experiment; carrying out wear resistance test on the experimental rope by using a wear detection device, and recording the friction times required by the abrasion of the experimental rope;

s5, selecting the formula proportion of the antifouling coating with the best antifouling effect and the best wear-resistant effect, and carrying out mass production on the cables.

By adopting the technical scheme, the KH550 and the defoaming agent are firstly added into the dimethylbenzene, then the carbon nano tubes are added and fully stirred, the carbon nano tubes are uniformly mixed in the dimethylbenzene, and the defoaming agent avoids generating bubbles in the stirring process. Then adding the chlorinated polyether resin, finally adding the antifouling agent, and fully stirring at a high speed to complete the preparation of the antifouling paint. The experiment is carried out by utilizing the experiment cotton rope firstly, the antifouling performance of the antifouling paint is tested, the improvement effect on the wear resistance of the pull rope is tested, the optimal proportion of each component of the antifouling paint is determined according to the optimal antifouling effect and the optimal wear resistance effect, the batch production of the mooring rope is carried out, and the antifouling effect and the wear resistance effect of the mooring rope are both optimal.

Further, in step S11, the defoaming agent is a polyether defoaming agent.

By adopting the technical scheme, the defoaming and foam inhibiting functions of the polyether defoaming agent are more excellent, and the polyether defoaming agent is non-toxic, odorless, non-irritant, easy to disperse, high in dynamic defoaming speed, strong in foam inhibiting performance, free of mineral substances, beneficial to environmental protection and excellent in effect in a wide temperature and PH range, so that the polyether defoaming agent is selected and used.

Further, in the step S14, the high-speed stirring time after the antifouling agent is added is 1 to 2 hours.

By adopting the technical scheme, the polyether resin and the antifouling agent can be fully and uniformly mixed with the dimethylbenzene, the components in the coating solution are uniformly mixed, the uniformity of the antifouling coating when the antifouling coating is connected with the protective outer sleeve and the rope body is ensured, and the antifouling and wear-resistant effects are ensured.

Further, in the step S21, the immersion time of the test cord in the coating solution is 4 to 6 hours.

By adopting the technical scheme, the experimental cotton rope can be fully soaked by the coating solution, and a complete and effective antifouling coating is formed on the experimental cotton rope.

Further, in the step S22, the temperature of the drying equipment is 70 ℃ to 80 ℃, and the drying time is 4h to 5 h.

By adopting the technical scheme, the experimental rope is dried, and the antifouling coating is ensured to be thoroughly dried, solidified and connected with the protective outer sleeve and the rope body.

Compared with the prior art, the beneficial effects are:

1. the antifouling coating compounded by the carbon nano tube and the epichlorohydrin resin is utilized, so that the bonding degree of the antifouling coating and the cable fiber is effectively improved, the flexibility of the cable is improved, and the antifouling performance of the cable is improved;

2. according to the invention, through research, the antifouling coating compounded by the carbon nano tube and the epichlorohydrin resin is utilized, so that the adhesion capability of the cable is improved by 30%, the antifouling validity period is prolonged by 20%, the problems of single function and poor adhesion of the traditional anticorrosive coating are solved, and the frictional wear between the cable fibers and between fine sand of the cable fibers is obviously reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of a cable comprising a carbon nanotube antifouling coating according to example 1;

FIG. 2 is a cross-sectional view of a wire rope containing a carbon nanotube antifouling coating according to example 1.

In the figure, 1, a rope body; 11. an inner core; 12. a filter cloth; 2. a protective outer sleeve; 3. and (3) antifouling coating.

Detailed Description

The drawings are for illustration purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:

example 1:

as shown in fig. 1 and fig. 2, an embodiment 1 of a cable containing a carbon nanotube antifouling coating comprises a cable body 1 and a protective outer jacket 2, wherein the cable body 1 comprises an inner core 11 and a filter cloth 12, and the filter cloth 12 is obliquely wrapped on the outer surface of the inner core 11. The protection overcoat 2 is the network structure parcel outside the rope body 1, and the surface of protection overcoat 2 and the exposed part coating of rope body 1 have antifouling coating 3, and antifouling coating 3 connects protection overcoat 2 and filter cloth 12. The protective outer sleeve 2 protects the rope body 1, reduces abrasion of the rope body 1 and prolongs the service life of the mooring rope. The filter cloth 12 effectively blocks soil particles larger than 5 microns, improves sand prevention capability, further improves the wear resistance and corrosion resistance of the inner core 11 of the rope body 1, and prolongs the service life of the rope body 1.

The antifouling coating 3 is a composite coating formed by mixing carbon nanotubes and chlorinated polyether resin, and specifically comprises KH550, a defoaming agent, xylene, carbon nanotubes, chlorinated polyether resin and an antifouling agent. The antifouling coating 3 comprises the following components in percentage by mass: KH550 of 1%, defoaming agent of 1%, xylene of 80%, carbon nanotubes of 3%, epichlorohydrin resin of 12% and antifouling agent of 3%.

The carbon nano tube has good flexibility, high tensile strength and high elastic modulus, so that the composite antifouling coating 3 can show good strength, elasticity, fatigue resistance and isotropy, and the performance of the antifouling coating 3 is greatly improved. Therefore, the antifouling coating 3 of the carbon nanotube composite chlorinated polyether resin is directly connected with the protective outer sleeve 2 and the cable body 1, so that the combination degree of the antifouling coating 3 and cable fibers can be effectively improved, the flexibility of the cable is improved, the antifouling performance of the cable is improved, and the service life of the cable is further prolonged.

Example 2:

the present embodiment is different from embodiment 1 only in that the mass percent of the carbon nanotubes in the present embodiment is 5%, and the mass percent of the epichlorohydrin resin is 10%.

Example 3

The present example is different from example 2 only in that the mass percent of the carbon nanotubes in the present example is 7% and the mass percent of the epichlorohydrin resin is 8%.

Example 4:

a method for preparing the antifouling coating in the cable containing the carbon nano tube antifouling coating is used for preparing the antifouling coatings in the embodiments 1 to 3, and comprises the following specific steps:

s0, preparing a control group antifouling paint solution; KH550 and a defoaming agent were added to xylene, and then epichlorohydrin resin and an antifouling agent were added, and the mixture was stirred at a high speed for 5 hours to form a control antifouling paint solution. Wherein, the mass percent of the dimethylbenzene is 80%, the mass percent of the KH550 and the mass percent of the defoaming agent are both 1%, the mass percent of the epichlorohydrin resin is 15%, and the mass percent of the antifouling agent is 3%.

S1, preparing an antifouling coating paint solution;

s11, adding KH550 and a defoaming agent into xylene, wherein the mass percentages of the KH500 and the defoaming agent are respectively 1%, and the defoaming agent is a polyether defoaming agent and has strong defoaming and foam inhibiting performances; the mass percent of the dimethylbenzene is 80%.

S12, adding carbon nanotubes (the length of the carbon nanotubes is 10-20 mu m, the diameter is 40-60 nm) into xylene, wherein the mass percentage of the carbon nanotubes is 3% -7%, stirring at a high speed for 5-6 h at room temperature, and the stirring time is preferably 6 h; in this embodiment, the mass percentages of the carbon nanotubes are respectively selected to be 3%, 5% and 7%, so as to form three experimental groups.

S13, adding a chlorinated polyether resin, wherein the mass percentage of the chlorinated polyether resin is 8% to 12%, and the sum of the mass percentage of the chlorinated polyether resin added and the mass percentage of the carbon nanotubes added in the step S12 is 15%, so the mass percentages of the chlorinated polyether resin in this embodiment are respectively determined as 12%, 10% and 8% along with the mass percentage of the carbon nanotubes in the step S12. It should be noted that the mass percentage of the epichlorohydrin resin and the carbon nanotube may be determined as other proportions as needed, as long as the sum of the two is 15%, and the sum is not limited herein.

And S14, adding an antifouling agent, wherein the mass percent of the antifouling agent is 3%, stirring at a high speed for 1-2 h to form three groups of experimental group coating solutions, and the stirring time is preferably 1h to complete the preparation of the antifouling coating solution.

That is, in step S1, three sets of the experimental antifouling paint solutions having different contents of the carbon nanotubes and the epichlorohydrin resin were prepared in total to be compared with the control antifouling paint solution prepared in step S0.

S2, coating an antifouling coating;

and S21, soaking the four experimental cords in the control group antifouling paint solution and the three experimental group antifouling paint solutions for 4-6 hours, wherein the soaking time is preferably 5 hours, taking out the experimental cords after soaking, and sucking off the excessive paint solution by using dry paper.

And S22, placing the experimental cord in drying equipment for drying treatment, wherein the temperature of the drying equipment is 70-80 ℃, the drying time is 4-5 h, the drying temperature is preferably 80 ℃, and the drying time is preferably 4 h.

S3, detecting the antifouling effect of the antifouling coating; four experimental cords are hung in a seawater simulation environment for antifouling effect detection, and the effect of algae adhesion is detected after one week and one month respectively.

S4, performing an experiment cotton rope abrasion resistance experiment; and (3) carrying out wear resistance test on four experimental cords (the length of the cord is 60cm, the thickness of the cord is 10mm) by using a wear detection device (the same as that in the prior art, and redundant description is not needed), and recording the friction times required by the abrasion of the experimental cords.

S5, selecting the formula proportion of the antifouling paint solution with the best antifouling effect and the best wear-resisting effect, and repeating the steps S1 to S2 according to the formula proportion of the solution to prepare the antifouling coating in batches.

The composite antifouling coating 3 of the carbon nano tube mixed chlorinated polyether resin plays a role in anchoring and adhesion, and the antifouling coating 3 and the mooring rope are combined more firmly by utilizing the physical interpenetrating effect of the carbon nano tube. In the experimental process, after the carbon nano tubes are added into the antifouling paint, the flexibility of the rope is reduced when the antifouling paint is coated on the experimental rope, and when the content of the carbon nano tubes is increased to 7%, uneven black patches appear in the paint solution, so that the influence on the surface quality of the cable is poor.

The results of the abrasion resistance test and the control experiment are shown in the following table:

it can be known that the wear-resisting times of the coating without the carbon nano tube is 1500 times, partial antifouling coating 3 falls off after the coating is soaked and bent by seawater, the adhesion capability of the antifouling coating 3 added with the carbon nano tube is improved, and the anti-adhesion capability and the wear resistance of the antifouling coating 3 of the carbon nano tube mixed with the chlorinated polyether resin are obviously improved. Wherein, the antifouling coating 3 coated with 5 percent of carbon nano tube and 10 percent of epichlorohydrin resin has 2100 times of wear resistance, 30 percent of adhesion capability improvement and best wear resistance and antifouling effect.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. 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 claims of the present invention.