1. The construction method for sticking the external wall tiles difficult to fall off is characterized by comprising the following steps of:

s1, performing base layer processing;

s2, wall brick pre-arranging;

s3, wall brick back processing;

s4, pasting the wall brick, and specifically comprises the following steps:

s4.1, uniformly mixing neutral transparent silicone structural adhesive and epoxy structural adhesive in a mass ratio of 1 (0.3-0.7) in a dry environment to obtain special structural adhesive;

s4.2, coating the specially-made structural adhesive on the back of each wall brick to ensure that the back of each wall brick is coated with five adhesive dots formed by the specially-made structural adhesive;

s4.3, paving the wall brick coated with the special structural adhesive on a base layer wall surface, and carrying out static pressure under external force until the special structural adhesive is cured, thereby completing the pasting of the wall brick;

s5, maintaining the structural adhesive, which specifically comprises the following steps:

s5.1, mixing water and sodium carbonate according to a mass ratio of 100 (2-5) to obtain a maintenance liquid;

s5.2, soaking the cloth in the curing liquid, and then taking out the cloth to obtain curing cloth;

s5.3, covering the maintenance cloth on the surface of the wall brick which is pasted, and maintaining the special structural adhesive, wherein the maintenance cloth is sprayed with maintenance liquid to ensure that the maintenance cloth is always in a wet state, and the maintenance time is 3-5 days;

and S6, wiping the seams.

2. The exterior wall tile pasting construction method according to claim 1, characterized in that: the step S4.3 specifically includes the steps of:

s4.3.1, coating rapid temporary fixing glue on the base wall surface, so that the sticking position on the base wall surface corresponding to each wall brick is coated with five glue dots formed by the rapid temporary fixing glue, and the glue dots formed by the rapid temporary fixing glue and the glue dots formed by the special structural glue are coated in a staggered manner;

s4.3.2, paving the wall brick coated with the special structural adhesive on a base layer wall surface, and attaching the back surface of the wall brick to the rapid temporary fixing adhesive;

s4.3.3, applying external force to the wall brick to make the wall brick and the base layer wall surface tightly fit until the quick temporary fixing glue is solidified;

s4.3.4, releasing the external force and standing the wall brick until the special structural adhesive is solidified.

3. The exterior wall tile pasting construction method according to claim 2, characterized in that: the quick temporary fixing glue is marble glue.

4. The exterior wall tile pasting construction method according to claim 1, characterized in that: the step S5.3 specifically includes the steps of:

s5.3.1, coating the curing cloth on the surface of the wall bricks after the pasting so as to cover the gaps between the wall bricks;

s5.3.2, taking a cotton sliver, soaking the cotton sliver in the curing liquid, and taking out the cotton sliver after the cotton sliver is soaked to obtain curing cotton;

s5.3.3, inserting curing cotton into the gaps between the wall bricks and compacting to make the curing cloth completely fit with the surface of the special structural adhesive;

s5.3.4, spraying the curing liquid to the curing cloth and the curing cotton at random to ensure that the curing cloth and the curing cotton are always in a wet state to cure the specially-made structural adhesive, wherein the curing time is 3-5 days.

5. The exterior wall tile pasting construction method according to any one of claims 1 to 4, wherein: the special structural adhesive is obtained by uniformly mixing neutral transparent silicone structural adhesive and epoxy structural adhesive according to the mass ratio of 1 (0.4-0.5).

6. The exterior wall tile pasting construction method according to claim 5, wherein: the special structural adhesive is prepared by uniformly mixing neutral transparent silicone structural adhesive and epoxy structural adhesive in a mass ratio of 1: 0.5.

7. The exterior wall tile pasting construction method according to any one of claims 1 to 4, wherein: the maintenance liquid is a sodium carbonate solution with the mass fraction of 3%.

8. The exterior wall tile pasting construction method according to any one of claims 1 to 4, wherein: the step S6 specifically includes: and filling the epoxy resin crack beautifying agent into the brick cracks of the cured wall bricks and leveling.

Background

The external wall tile is an external wall veneer made of ceramic face tiles and is made of semi-ceramic or ceramic materials. The outer wall brick has the characteristics of durability, fastness, freezing resistance, corrosion resistance, self-washing by rainwater, cleaning and the like, and can play the effects of decoration and protection on the outer wall of a building by paving a large number of outer wall bricks on the outer wall of the building.

The method for paving and pasting the external wall tiles is various, the external wall tiles can be nailed on the external wall of the building through bolts and the like, and the external wall tiles can also be bonded on the external wall of the building through adhesives. However, the exterior wall tiles nailed on the exterior wall of the building have poor protection effect and decoration effect which is difficult to meet the expectation of people, so the exterior wall tiles are mostly paved by adopting a sticking method at present.

The external wall tile is exposed to outdoor environment and suffers from wind, sun and rain all the year round, however, the common practice of pasting the external wall tile at present is to paste the back of the external wall tile on the plastering layer of the building external wall directly after smearing uniformly with 325 cement, and then knock and tamp to wait for the cement to solidify. The inventor believes that the steps in the related art are simple, but have the defects of time and material waste, labor intensity and high cost, and particularly, the outer wall tiles are easy to fall off from the outer wall of the building when being exposed to the outdoor environment for a long time.

Disclosure of Invention

In order to overcome the defects, the application provides the construction method for sticking the external wall tiles, which is not easy to fall off.

The application provides an outer wall tile wainscot method of outer wall tile that is difficult for droing adopts following technical scheme:

a facing method of an external wall tile with difficulty in falling off comprises the following steps:

s1, performing base layer processing;

s2, wall brick pre-arranging;

s3, wall brick back processing;

s4, pasting the wall brick, and specifically comprises the following steps:

s4.1, uniformly mixing neutral transparent silicone structural adhesive and epoxy structural adhesive in a mass ratio of 1 (0.3-0.7) in a dry environment to obtain special structural adhesive;

s4.2, coating the specially-made structural adhesive on the back of each wall brick to ensure that the back of each wall brick is coated with five adhesive dots formed by the specially-made structural adhesive;

s4.3, paving the wall brick coated with the special structural adhesive on a base layer wall surface, and carrying out static pressure under external force until the special structural adhesive is cured, thereby completing the pasting of the wall brick;

s5, maintaining the structural adhesive, which specifically comprises the following steps:

s5.1, mixing water and sodium carbonate according to a mass ratio of 100 (2-5) to obtain a maintenance liquid;

s5.2, soaking the cloth in the curing liquid, and then taking out the cloth to obtain curing cloth;

s5.3, covering the maintenance cloth on the surface of the wall brick which is pasted, and maintaining the special structural adhesive, wherein the maintenance cloth is sprayed with maintenance liquid to ensure that the maintenance cloth is always in a wet state, and the maintenance time is 3-5 days;

and S6, wiping the seams.

The inventor believes that the exterior wall tile is degraded when the cement undergoes temperature and humidity changes many times due to long-term exposure to the outdoor environment and temperature and humidity changes, and micropores and cracks generated during hydration reaction are further enlarged, so that the strength of the cement is reduced, the bonding capability is reduced, and finally the exterior wall tile falls off from the exterior wall of the building. Therefore, in order to solve this problem, the inventors tried to use structural adhesive instead of cement as a binder in order to achieve the effects of excellent binding ability and durability of the adhesive layer. However, the above problems are still difficult to solve by using a single structural adhesive or a combination of structural adhesives.

In the research process, the inventor unexpectedly finds that by adopting the technical scheme, the neutral transparent silicone structural adhesive and the epoxy structural adhesive are mixed according to a certain proportion to be used as the special structural adhesive, and after the special structural adhesive is cured, the cured special structural adhesive is cured by using a low-concentration sodium carbonate solution, so that the bonding capacity of the cured structural adhesive can be obviously improved, meanwhile, the cured structural adhesive has a durable effect, can effectively resist the invasion of the outdoor environment and can keep higher bonding capacity.

Preferably, the step S4.3 specifically includes the following steps:

s4.3.1, coating rapid temporary fixing glue on the base wall surface, so that the sticking position on the base wall surface corresponding to each wall brick is coated with five glue dots formed by the rapid temporary fixing glue, and the glue dots formed by the rapid temporary fixing glue and the glue dots formed by the special structural glue are coated in a staggered manner;

s4.3.2, paving the wall brick coated with the special structural adhesive on a base layer wall surface, and attaching the back surface of the wall brick to the rapid temporary fixing adhesive;

s4.3.3, applying external force to the wall brick to make the wall brick and the base layer wall surface tightly fit until the quick temporary fixing glue is solidified;

s4.3.4, releasing the external force and standing the wall brick until the special structural adhesive is solidified.

Preferably, the quick temporary fixing glue is marble glue.

Through adopting above-mentioned technical scheme, utilize the characteristic that marble glue can the fast curing to bond the wall brick on basic unit's wall temporarily for the wall brick can keep the state of relative static with basic unit's wall, and then makes purpose-made structure glue can solidify under more stable state, realizes the effect of liberation manpower.

Preferably, the step S5.3 specifically includes the following steps:

s5.3.1, coating the curing cloth on the surface of the wall bricks after the pasting so as to cover the gaps between the wall bricks;

s5.3.2, taking a cotton sliver, soaking the cotton sliver in the curing liquid, and taking out the cotton sliver after the cotton sliver is soaked to obtain curing cotton;

s5.3.3, inserting curing cotton into the gaps between the wall bricks and compacting to make the curing cloth completely fit with the surface of the special structural adhesive;

s5.3.4, spraying the curing liquid to the curing cloth and the curing cotton at random to ensure that the curing cloth and the curing cotton are always in a wet state to cure the specially-made structural adhesive, wherein the curing time is 3-5 days.

By adopting the technical scheme, the surface of the special structural adhesive which can be solidified by the curing cloth is attached, so that the curing liquid is permeated into the special structural adhesive to improve the curing effect.

Preferably, the specially-made structural adhesive is obtained by uniformly mixing neutral transparent silicone structural adhesive and epoxy structural adhesive according to the mass ratio of 1 (0.4-0.5).

Preferably, the specially-made structural adhesive is obtained by uniformly mixing neutral transparent silicone structural adhesive and epoxy structural adhesive in a mass ratio of 1: 0.5.

After a large number of parallel experiments and repeated experiments, the inventor discovers that the specially-made structural adhesive obtained by mixing the neutral transparent silicone structural adhesive and the epoxy structural adhesive according to the mass ratio of 1:0.5 has the best bonding strength and also has higher durability, and can keep the higher bonding strength under the severe environmental condition change.

Preferably, the maintenance liquid is a sodium carbonate solution with the mass fraction of 3%.

After a large number of parallel experiments and repeated experiments, the inventor finds that when the mass fraction of the sodium carbonate is 3%, the obtained curing liquid has the best curing effect on the special structural adhesive, and the structural adhesive obtained after curing has the highest bonding strength.

Preferably, it is characterized in that: the step S6 specifically includes: and filling the epoxy resin crack beautifying agent into the brick cracks of the cured wall bricks and leveling.

The inventor adopts various seam beautifying agents to find that the bonding effect of the epoxy resin seam beautifying agent and the specially-made structural adhesive is optimal, the connection stability between the wall bricks can be improved, the seepage resistance of the specially-made structural adhesive can be improved, and the influence of a humid environment on the stability of the specially-made structural adhesive is further reduced.

In summary, the present application has the following beneficial effects:

1. the method for sticking the wall brick by using the structural adhesive to replace cement is characterized in that a mixed structural adhesive of a neutral transparent silicone structural adhesive and an epoxy structural adhesive is used as an adhesive for bonding, and a low-concentration sodium carbonate solution is used for maintenance, so that the bonding strength of the wall brick and the base layer wall surface is effectively improved, the stability and the durability of a special structural adhesive formed by curing are improved, the wall brick can still have better bonding force with the base layer wall surface under the condition of being exposed in an outdoor environment for a long time, and the risk of falling of the wall brick is further reduced.

2. In the application, the neutral transparent silicone structural adhesive and epoxy structural adhesive mixed adhesive with the mass ratio of 1:0.5 is preferably adopted, and a sodium carbonate solution with the mass fraction of 3% is adopted as a curing solution, so that the optimal bonding effect is obtained.

3. Preferably adopt the beautiful seam agent of epoxy to fill as the gap filler in this application to the gap between the wall brick, have the effect that improves the stability of purpose-made structure glue film.

Detailed Description

The present application will be described in further detail below with reference to examples 1 to 7 and comparative examples 1 to 8.

Examples of preparation of raw materials and/or intermediates

Preparation example 1

A purpose-made structural adhesive was prepared by mixing 10kg of a neutral transparent silicone structural adhesive (available from Jinzhu building materials, Inc., Changgu, model number, Bridgh 998) and 3kg of an epoxy structural adhesive (available from Xinyue electronic materials, Inc., of Dongguan, Inc.) in a dry environment.

Preparation example 2

A special structural adhesive is prepared by mixing 10kg of neutral transparent silicone structural adhesive and 7kg of epoxy structural adhesive in a dry environment.

Preparation example 3

A special structural adhesive is prepared by mixing 10kg of neutral transparent silicone structural adhesive and 4kg of epoxy structural adhesive in a dry environment.

Preparation example 4

A special structural adhesive is prepared by mixing 10kg of neutral transparent silicone structural adhesive and 5kg of epoxy structural adhesive in a dry environment.

Preparation example 5

A special structural adhesive is prepared by mixing 10kg of neutral transparent silicone structural adhesive and 2.5kg of epoxy structural adhesive in a dry environment.

Preparation example 6

A special structural adhesive is prepared by mixing 10kg of neutral transparent silicone structural adhesive and 7.5kg of epoxy structural adhesive in a dry environment.

Preparation example 7

A health liquid is prepared by dissolving 50g sodium carbonate in 1kg water.

Preparation example 8

A health liquid is prepared by dissolving 20g sodium carbonate in 1kg water.

Preparation example 9

A health liquid is prepared by dissolving 40g sodium carbonate in 1kg water.

Preparation example 10

A health liquid is prepared by dissolving 30g sodium carbonate in 1kg water.

Preparation example 11

A health liquid is prepared by dissolving 100g sodium carbonate in 1kg water.

Preparation example 12

A health liquid is prepared by dissolving 50g sodium chloride in 1kg water.

Preparation example 13

A maintenance liquid is prepared by dissolving 50g potassium carbonate in 1kg water.

Examples

Example 1

A brick wall complex obtained by the following steps:

s1, stacking the experimental wall, specifically comprising: and (3) piling the wall body by using common red bricks, then coating 325 cement on the outer surface of the wall body, and naturally drying to obtain the base layer wall surface.

S2, performing base layer processing, specifically including: removing oil stain, release agent, floating dust and other pollutants on the base layer wall surface, ensuring the cleanness and tidiness of the base layer wall surface, and then watering and wetting the base layer wall surface.

S3, wall brick pre-arranging, specifically including: the facing brick (product number LZ 001) produced by Anhui Lifeng building materials science and technology Limited is selected as the wall brick, and the BIM typesetting technology is adopted to typeset the wall brick.

S4, wall brick back processing, which comprises: and cleaning the floating dust on the back of the wall brick by using a hairbrush.

S5, pasting the wall brick, and specifically comprises the following steps:

s5.1, coating the special structural adhesive in the preparation example 1 on the back surface of the wall brick to coat five adhesive dots formed by the special structural adhesive on the back surface of the wall brick;

s5.2, coating marble adhesive on the base layer wall surface, so that adhesive dots formed by five marble adhesives (purchased from Shenzhen Guangtian environmental protection coating Co., Ltd.) are coated at the pasting position of the base layer wall surface corresponding to each wall brick, and the marble adhesives and the special structural adhesives are coated in a staggered manner to prevent the mixing influence of the two adhesives;

s5.3, paving the wall brick coated with the specially-made structural adhesive in the preparation example 1 on a base layer wall surface, and attaching the back surface of the wall brick to an adhesive point formed by the marble adhesive;

s5.4, applying external force to the wall bricks to enable the wall bricks to be tightly attached to the base layer wall surface until the marble adhesive is cured;

and S5.5, relieving external force and standing the wall brick until the special structural adhesive is cured.

S6, maintaining the structural adhesive, which specifically comprises the following steps:

s6.1, soaking the cloth in the curing liquid in the preparation example 7, and taking out the cloth after soaking to obtain curing cloth;

s6.2, coating the curing cloth on the surface of the wall brick, wherein the curing cloth needs to be filled into gaps between the wall bricks so as to be convenient for the curing cloth to be contacted with the solidified special structural adhesive.

S6.3, spraying the curing liquid in the preparation example 7 to the curing cloth at random to ensure that the curing cloth is always in a wet state to cure the special structural adhesive, wherein the curing time is 3 days.

S7, wiping the seam, specifically comprising: white cement (purchased from Henan Tunggu building materials Co., Ltd., model No. Albo brand P.W.52.5) is used as a crack beautifying agent to be filled into the brick cracks of the cured wall bricks and is scraped to obtain a brick-wall composite.

Example 2

A brick wall composite is different from the brick wall composite in example 1 in that the specially-made structural adhesive used in step S5 is the specially-made structural adhesive in preparation example 2, the curing solution used in step S6 is the curing solution in preparation example 8, and the curing time in step S6.3 is 5 days.

Example 3

A brick-wall composite is different from the brick-wall composite in example 1 in that the specially-made structural adhesive used in step S5 is the specially-made structural adhesive in preparation example 3, the curing solution used in step S6 is the curing solution in preparation example 9, the curing time in step S6.3 is 4 days, and the crack sealer used in step S7 is an aspartic polyurea resin crack sealer (available from Wanhua scientific and technology Co., Ltd., Fushan).

Example 4

A brick wall composite is different from the brick wall composite in example 3 in that the specially-made structural adhesive used in the step S5 is the specially-made structural adhesive in the preparation example 4, the curing solution used in the step S6 is the curing solution in the preparation example 7, and the curing time in the step S6.3 is 3 days.

Example 5

A brick wall composite, which is different from example 4 in that the curing liquid used in step S6 is the curing liquid used in preparation example 10.

Example 6

A brick wall composite, differing from example 5 in that step S6.2 further comprises the steps of: soaking the cotton sliver in the curing liquid in the preparation example 10, and taking out after soaking to obtain cured cotton; and filling the curing cotton into the gaps between the wall bricks and compacting to ensure that the curing cloth can be completely attached to the surface of the solidified special structural adhesive.

Example 7

A brick wall composite differing from example 6 in that the jointing agent used in step S7 is an epoxy resin jointing agent (available from Henan Huang Jiang building materials Co., Ltd.).

Comparative example

Comparative example 1

A brick wall composite, which is different from embodiment 1 in that step S5 specifically includes the following steps:

s5.1, uniformly coating 325 cement (purchased from a building material factory of Juniperus town Yongliang in Yangchun) on the back of a wall brick after being flushed by water;

and S5.2, applying external force to the wall bricks to enable the wall bricks to be tightly attached to the base layer wall surface until the cement is solidified to 325 degrees.

Comparative example 2

A brick wall composite, which is different from embodiment 1 in that step S5 specifically includes the following steps:

s5.1, coating neutral transparent silicone structural adhesive on the back surface of the wall brick to coat adhesive dots formed by five neutral transparent silicone structural adhesives on the back surface of the wall brick;

and S5.2, applying external force to the wall bricks to enable the wall bricks to be tightly attached to the base layer wall surface until the neutral transparent silicone structural adhesive is cured.

Comparative example 3

A brick wall composite, which is different from embodiment 1 in that step S5 specifically includes the following steps:

s5.1, coating epoxy structural adhesive on the back of the wall brick to coat adhesive dots formed by five epoxy structural adhesives on the back of the wall brick;

and S5.2, applying external force to the wall bricks to enable the wall bricks to be tightly attached to the base layer wall surface until the epoxy structural adhesive is cured.

Comparative example 4

A brick wall composite, which is different from the brick wall composite in example 1 in that the special structural adhesive used in step S5 is the special structural adhesive in preparation example 5.

Comparative example 5

A brick wall composite, which is different from the brick wall composite in example 1 in that the special structural adhesive used in step S5 is the special structural adhesive in preparation example 6.

Comparative example 6

A brick wall composite differing from example 5 in that the curing liquid used in step S6 was the curing liquid used in preparation example 11.

Comparative example 7

A brick wall composite, which is different from example 5 in that the curing liquid used in step S6 is the curing liquid used in preparation example 12.

Comparative example 8

A brick wall composite differing from example 5 in that the curing liquid used in step S6 was the curing liquid used in preparation example 13.

Performance test

First, establishment of brick wall complex environment tolerance detection method

(1) Accelerated environmental tolerance test:

s1, watering the brick wall complex by water, cooling to-40 ℃ within 1h, freezing, and keeping the temperature for 9 h;

s2, heating the frozen brick wall complex to 70 ℃ within 3 hours, and preserving heat for 7 hours;

s3, cooling the heated brick wall complex to-40 ℃ within 2 hours, freezing, and keeping the temperature for 8 hours;

s4, placing the brick wall complex after the secondary freezing at room temperature for slow heating;

(2) and (4) carrying out bonding strength test on the wall bricks on the brick-wall complex according to JGJ 110-2008.

Secondly, the bonding strength of all the brick-wall composites of examples 1 to 7 and comparative examples 1 to 8 was measured by the above-mentioned measuring method, and the results are shown in table 1.

TABLE 1 bond strength of brick-wall composite

Sample source	Adhesive Strength (MPa)
		Example 1	0.78
Example 2	0.76
		Example 3	0.79
Example 4	0.81
		Example 5	0.82
Example 6	0.84
		Example 7	0.86
Comparative example 1	0.04
		Comparative example 2	0.18
Comparative example 3	0.17
		Comparative example 4	0.17
Comparative example 5	0.18
		Comparative example 6	0.18
Comparative example 7	0.17
		Comparative example 8	0.18

In combination with comparative example 1 and table 1, it can be seen that the brick-wall composite obtained by using 325% cement as a binder to adhere wall bricks becomes extremely fragile under the environmental changes of high temperature, low temperature, dry and wet, and even can not meet the adhering requirement (more than 0.5 MPa), at this time, the wall bricks are easy to fall off from the base wall surface. This shows that the test method can better simulate the long-term change of the natural environment, so that the 325 cement is degraded.

It can be seen from the combination of example 1 and comparative examples 1-3 and table 1 that the brick-wall composite obtained by using the neutral transparent silicone structural adhesive or epoxy structural adhesive alone as the adhesive to adhere the wall brick is still significantly degraded after undergoing the accelerated test, and although the adhesive strength is better than that of the control group using 325 cement as the adhesive, the adhesive strength still cannot meet the adhering requirement, i.e. the wall brick is still in a state of easy falling.

When the mixing ratio of the neutral transparent silicone structural adhesive and the epoxy structural adhesive is too high or too low, the obtained special structural adhesive still undergoes obvious degradation after undergoing an acceleration test, and the bonding strength of the special structural adhesive is not obviously different from that of the single structural adhesive, which shows that the mixing ratio has an extremely important influence on the environmental resistance of the special structural adhesive, and is shown by combining the examples 1 to 3 and the comparative examples 4 to 5 and combining the table 1. When the mixing ratio of the neutral transparent silicone structural adhesive and the epoxy structural adhesive is within a certain range, the formed special structural adhesive shows excellent environmental tolerance, and the special structural adhesive formed when the mixing ratio exceeds the range is the same as that of the common structural adhesive.

The inventor speculates that the bonding reaction between the neutral transparent silicone structural adhesive and the epoxy structural adhesive is generated under the curing action of the sodium carbonate solution, and each neutral transparent silicone structural adhesive monomer is bonded with two epoxy structural adhesives to form a new chemical bond, so that a specific mixing ratio is required.

When the concentration of the sodium carbonate solution for curing the purpose-made structural adhesive is too high, the bond strength of the obtained brick wall composite is obviously reduced after undergoing the accelerated test, which is equivalent to that of the common adhesive, as can be seen by combining example 1 and comparative example 6 with table 1. This indicates that the highly concentrated sodium carbonate solution is not curing.

In particular, as can be seen from the combination of example 1 and comparative examples 7 to 8 and from Table 1, the use of a moderately concentrated sodium chloride solution or potassium carbonate solution as the curing liquid also did not result in curing.

As can be seen from the combination of examples 1 to 4 and table 1, the mixing mass ratio of the neutral transparent silicone structural adhesive to the epoxy structural adhesive is not in a linear relationship with the environmental tolerance of the formed special structural adhesive, and the inventors found that the obtained special structural adhesive has the best environmental tolerance when the mixing mass ratio of the neutral transparent silicone structural adhesive to the epoxy structural adhesive is 1: 0.5.

It can be seen from the combination of examples 4-5 and Table 1 that the environmental resistance of the cured specialty structural adhesive is best when the sodium carbonate solution is used at a mass fraction close to 3%.

It can be seen from the combination of examples 5-6 and table 1 that the environmental tolerance of the cured special structural adhesive can be improved by using the cotton strip to attach the curing cloth to the surface of the special structural adhesive.

As can be seen by combining examples 6-7 with Table 1, the use of epoxy caulk further improves the environmental resistance of specialty construction adhesives. The inventor speculates that the epoxy resin seam beautifying agent and the epoxy structural adhesive have similar monomer structures, so that the epoxy resin seam beautifying agent and the epoxy structural adhesive have good intersolubility, the bonding effect of the seam beautifying agent and the structural adhesive is improved, meanwhile, the moisture permeating into the structural adhesive in the external environment is reduced, and the effect of improving the environmental tolerance of the special structural adhesive is further realized.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.