CN115537159B - Weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive and preparation method and application thereof - Google Patents

Abstract

The invention relates to the technical field of building waterproof adhesives, in particular to a weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive and a preparation method and application thereof. The weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive is mainly prepared from the following components in percentage by mass: 25-40% of hydrogenated tackifying resin, 10-20% of maleic anhydride modified tackifying resin, 10-20% of softening agent, 20-30% of styrene block copolymer, 10-15% of epoxidized SIS polymer, 0.1-1% of antioxidant, 0.5-2% of anti-ultraviolet agent, 3-5% of auxiliary anti-ultraviolet agent and 0.3-1% of coupling agent. In the hot-melt pressure-sensitive adhesive, the epoxidized SIS polymer and the maleic anhydride modified tackifying resin are added simultaneously, and under high-temperature shearing, the epoxidized SIS polymer generates a ring-opening reaction and a chemical reaction with the maleic anhydride modified resin to form a stable crosslinking structure, so that the weather resistance of the product is further improved.

Description

Weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive and preparation method and application thereof

Technical Field

The invention relates to the technical field of building waterproof adhesives, in particular to a weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive and a preparation method and application thereof.

Background

The prior art of the building waterproof glue has two types: the self-adhesive asphalt-base glue prepared with synthetic rubber, tackifier, petroleum asphalt, etc. has excellent self-healing performance and adhesion performance, but its adhesion performance is poor at low temperature, and when it is used at temperature lower than 5 deg.c, it needs auxiliary heating and has poor ageing resistance. The other kind of non-asphalt base self-adhesive prepared with synthetic rubber, tackifier, assistant, etc. is one kind of environment protecting waterproof polymer material with excellent mechanical performance, convenient construction, no bad smell and environment friendship, and has poor ageing resistance, cross linking or degradation of the block under the oxidation condition of high temperature air, lowered adhesion performance, excellent self-adhesion, weather resistance and excellent adhesion performance.

In patent application publication No. CN107189732A, an acrylate crosslinking agent is used to graft SIS elastomer and polyisoprene rubber, and graft modification is performed to reduce the number of double bonds of elastomer material, improve the adhesion and weather resistance of hot melt pressure sensitive adhesive using SIS elastomer as main material, and amorphous olefin copolymer APAO and polyisoprene rubber are added in the formula to improve the adhesion of the material. In patent application publication No. CN105602480A, the bonding force and weather resistance of waterproof adhesive are improved by grafting hydroxyl group to SBS and adding silane modified hyperbranched polyimide. The two proposals improve the weather resistance of the non-asphalt-based waterproof coiled material glue to a certain extent, but the preparation of the adopted materials is too complicated.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention aims to provide a weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive to solve the technical problems of poor weather resistance and bonding performance and the like in the prior art.

The invention also aims to provide a preparation method of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive.

The invention further aims to provide application of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive.

In order to achieve the above purpose of the present invention, the following technical solutions are adopted:

the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive is mainly prepared from the following components in percentage by mass:

25-40% of hydrogenated tackifying resin, 10-20% of maleic anhydride modified tackifying resin, 10-20% of softening agent, 20-30% of styrene block copolymer, 10-15% of epoxidized SIS polymer, 0.1-1% of antioxidant, 0.5-2% of anti-ultraviolet agent, 3-5% of auxiliary anti-ultraviolet agent and 0.3-1% of coupling agent;

the mass ratio of the maleic anhydride modified tackifying resin to the epoxidized SIS polymer is (1 to 1.5) to 1;

the epoxy value of the epoxidized SIS polymer is 0.35 to 0.4eq/100g.

In a particular embodiment of the invention, the hydrogenated tackifying resin is any one or more of a hydrogenated C5 tackifying resin, a hydrogenated C9 tackifying resin, and DCPD.

In a specific embodiment of the invention, the maleic anhydride modified tackifying resin comprises a maleic anhydride modified petroleum resin and/or a maleic anhydride modified rosin resin.

In a specific embodiment of the present invention, the softening agent includes any one or more of naphthenic oil, paraffinic oil, and polyisobutylene.

In a particular embodiment of the invention, the styrenic block copolymer comprises any one or more of SIS, SBS, SEBS and SSBR.

In a particular embodiment of the invention, the antioxidant comprises a hindered phenolic antioxidant and/or a phosphite antioxidant.

In a specific embodiment of the present invention, the anti-ultraviolet agent includes any one or more of a benzotriazole-based light absorber, a triazine-based light stabilizer, and a hindered amine-based light stabilizer. Further, the anti-ultraviolet agent comprises a benzotriazole light absorber and a hindered amine light stabilizer.

In a specific embodiment of the present invention, the auxiliary anti-ultraviolet agent comprises titanium dioxide. Such as titanium dioxide. Further, the particle size of the titanium dioxide is 0.2 to 0.4 mu m.

In a specific embodiment of the present invention, the coupling agent includes any one or more of an aminosilane coupling agent, an epoxy silane coupling agent, an acyloxy silane coupling agent, a vinyl silane coupling agent, an alkyl silane coupling agent, and a phenyl silane coupling agent.

The invention also provides a preparation method of any one of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesives, which comprises the following steps:

(a) Stirring and melting a styrene block copolymer, an epoxidized SIS polymer, a softener and an antioxidant at 130 to 150 ℃ under a vacuum condition to obtain a molten mixture;

(b) Heating the molten mixture to 150-170 ℃, adding hydrogenated tackifying resin, maleic anhydride modified tackifying resin, anti-ultraviolet agent, auxiliary anti-ultraviolet agent and coupling agent, stirring and mixing uniformly, vacuumizing to remove bubbles to form uniform viscous liquid, and stopping heating and stirring to obtain the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive.

The invention also provides application of any one of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesives in preparation of a weather-resistant waterproof coiled material.

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

(1) According to the hot-melt pressure-sensitive adhesive, the epoxidized SIS polymer and the maleic anhydride modified tackifying resin are added simultaneously, so that on one hand, the double bond content in the epoxidized SIS polymer is reduced, the weather resistance of a product is improved to a certain extent, on the other hand, under high-temperature shearing, the epoxidized SIS polymer generates a ring-opening reaction and generates a chemical reaction with the maleic anhydride modified resin, a stable crosslinking structure is formed, and the weather resistance of the product is further improved;

(2) The weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive has excellent initial peel strength, the heat aging performance can be kept above 85%, the ultraviolet resistance can be kept above 90%, and the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive has high heat resistance, no slippage, no dripping and excellent weather resistance.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following detailed description, but those skilled in the art will understand that the following described examples are some, not all, of the examples of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. 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. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

The weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive is mainly prepared from the following components in percentage by mass:

25-40% of hydrogenated tackifying resin, 10-20% of maleic anhydride modified tackifying resin, 10-20% of softening agent, 20-30% of styrene block copolymer, 10-15% of epoxidized SIS polymer, 0.1-1% of antioxidant, 0.5-2% of anti-ultraviolet agent, 3-5% of auxiliary anti-ultraviolet agent and 0.3-1% of coupling agent;

the mass ratio of the maleic anhydride modified tackifying resin to the epoxidized SIS polymer is (1 to 1.5) to 1;

the epoxy value of the epoxidized SIS polymer is 0.35 to 0.4eq/100g.

According to the invention, the specific maleic anhydride modified tackifying resin and the epoxidized SIS polymer are adopted, on one hand, the weather resistance of the product is improved to a certain extent due to the reduction of the double bond content in the epoxidized SIS polymer, and on the other hand, under high-temperature shearing, the epoxidized SIS polymer generates a ring-opening reaction and a chemical reaction with the maleic anhydride modified resin to form a stable crosslinking structure, so that the weather resistance of the product is further improved. Meanwhile, the problems that the epoxy structure is too much, the crosslinking degree of glue is too high, the glue is hardened, the peeling force is reduced, and the problem that the Tg point of a finished product moves to a high-temperature area and the low-temperature flexibility is reduced due to the fact that the content of maleic anhydride resin is too high are avoided.

In different embodiments, the amounts of the components in the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive can be respectively as follows by mass percent:

hydrogenated tackifying resins can be used in amounts of 25%, 28%, 30%, 32%, 35%, 38%, 40%, and so forth;

the maleic anhydride modified tackifying resin may be used in amounts of 10%, 12%, 14%, 15%, 16%, 18%, 20%, etc.;

the softening agent may be used in an amount of 10%, 12%, 14%, 15%, 16%, 18%, 20%, etc.;

the amount of styrenic block copolymer can be 20%, 22%, 24%, 25%, 26%, 28%, 30%, etc.;

the epoxidized SIS polymer can be used in amounts of 10%, 11%, 12%, 13%, 14%, 15%, etc.;

antioxidants can be used in amounts of 0.1%, 0.2%, 0.4%, 0.5%, 0.6%, 0.8%, 1%, and the like;

the anti-ultraviolet agent may be used in an amount of 0.5%, 0.6%, 0.8%, 1%, 1.2%, 1.4%, 1.5%, 1.6%, 1.8%, 2%, etc.;

the auxiliary anti-ultraviolet agent can be used in an amount of 3%, 3.5%, 4%, 4.5%, 5%, etc.;

the coupling agent may be used in an amount of 0.3%, 0.4%, 0.5%, 0.6%, 0.8%, 1%, etc.

As in the various embodiments, the mass ratios of the maleic anhydride modified tackifying resin to the epoxidized SIS polymer can be 1: 1, 1.1: 1, 1.2: 1, 1.3: 1, 1.4: 1, 1.5: 1, and so forth.

As in various embodiments, the epoxidized SIS polymer can have an epoxy value of 0.35eq/100g, 0.36eq/100g, 0.37eq/100g, 0.38eq/100g, 0.39eq/100g, 0.4eq/100g, and so forth.

In practice, the epoxidized SIS polymer can be prepared by conventional methods, such as, but not limited to, the following steps:

adding a certain amount of SIS and toluene into a reaction container to prepare a solution with the mass fraction of 20%, adding a certain amount of formic acid, controlling the reaction temperature to be 50 ℃ by using a thermostatic water bath, stirring, and dropwise adding a certain amount of hydrogen peroxide (according to SIS double bond: HCOOH: H) ₂ O ₂ At a molar ratio of 1: 2: 6), reacting for 2h, condensing with ethanol, washing, and drying to constant volume in a vacuum oven to obtain a ringAn epoxy SIS (SIS epoxidation mainly occurs on a double bond of a 1, 4-structure in a polyisoprene chain) having an oxygen value of about 0.39eq/100g (the epoxy value is calculated by referring to the conventional manner).

In a particular embodiment of the invention, the hydrogenated tackifying resin is any one or more of a hydrogenated C5 tackifying resin, a hydrogenated C9 tackifying resin, and DCPD.

In a specific embodiment of the invention, the hydrogenated tackifying resin has a softening point of between 90 and 110 ℃.

As in the various embodiments, the hydrogenated tackifying resin may have a softening point of 90 deg.C, 95 deg.C, 100 deg.C, 105 deg.C, 110 deg.C, and the like.

In a specific embodiment of the invention, the maleic anhydride modified tackifying resin comprises a maleic anhydride modified petroleum resin and/or a maleic anhydride modified rosin resin.

In a specific embodiment of the invention, the softening point of the maleic anhydride modified tackifying resin is between 90 and 110 ℃.

As in the various embodiments, the maleic anhydride modified tackifying resin can have a softening point of 90 deg.C, 95 deg.C, 100 deg.C, 105 deg.C, 110 deg.C, and the like.

In a specific embodiment of the present invention, the softening agent includes any one or more of naphthenic oil, paraffinic oil, and polyisobutylene.

In a particular embodiment of the invention, the styrenic block copolymer comprises any one or more of SIS, SBS, SEBS and SSBR, preferably SIS.

In a specific embodiment of the present invention, the diblock content in the styrene block copolymer is 25wt% to 77wt%.

As in the different embodiments, the diblock content in the styrenic block copolymer may be 25wt%, 30wt%, 35wt%, 40wt%, 45wt%, 50wt%, 55wt%, 60wt%, 65wt%, 70wt%, 75wt%, 77wt%, or any value in the range of any two values therein.

In a particular embodiment of the invention, the antioxidant comprises a hindered phenolic antioxidant and/or a phosphite antioxidant.

Wherein, the hindered phenol antioxidant includes but is not limited to antioxidant 1010, and the phosphite antioxidant includes but is not limited to antioxidant 168.

In a specific embodiment of the present invention, the anti-ultraviolet agent includes any one or more of a benzotriazole-based light absorber, a triazine-based light stabilizer, and a hindered amine-based light stabilizer. Further, the anti-ultraviolet agent comprises a benzotriazole light absorber and a hindered amine light stabilizer.

In particular embodiments of the present invention, the benzotriazole-based light absorbers include, but are not limited to, benzotriazole-based light absorbers 327, and the hindered amine-based light stabilizers include, but are not limited to, hindered amine-based light stabilizers 774; the mass ratio of the two can be 1: 1.

In a specific embodiment of the present invention, the auxiliary anti-ultraviolet agent includes titanium dioxide. Such as titanium dioxide. Further, the particle size of the titanium dioxide is 0.2 to 0.4 mu m. The titanium dioxide has high refractivity and high optical activity, and can effectively block ultraviolet rays.

In a specific embodiment of the present invention, the coupling agent includes any one or more of an aminosilane coupling agent, an epoxy silane coupling agent, an acyloxy silane coupling agent, a vinyl silane coupling agent, an alkyl silane coupling agent, and a phenyl silane coupling agent.

In a specific embodiment of the invention, the stripping strength of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive and post-pouring cement mortar sand coating satisfies the following requirements:

the peel strength is more than or equal to 2.5N/mm under the standard condition;

after the hot air aging treatment at 80 ℃ for 168 hours, the peel strength retention rate is more than or equal to 85 percent, preferably more than or equal to 92 percent, more than or equal to 93 percent, more than or equal to 94 percent, more than or equal to 95 percent, more than or equal to 96 percent and the like;

after soaking in water at 23 ℃ for 168 hours, the peel strength retention rate is more than or equal to 80%, preferably more than or equal to 84%, more than or equal to 85%, more than or equal to 86%, more than or equal to 88%, more than or equal to 90%, more than or equal to 92%, more than or equal to 94%, more than or equal to 96% and the like;

at 60W/m ² The retention of peel strength after the ultraviolet light treatment for 72 hours is 90% or more, preferably 92% or more, 94% or more, 95% or more, 96% or more, and the like.

In a specific embodiment of the invention, the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive has no crack at-25 ℃; no slippage, no flowing and no dripping at the temperature of 80 ℃/2 h.

The invention also provides a preparation method of any one of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesives, which comprises the following steps:

(a) Stirring and melting a styrene block copolymer, an epoxidized SIS polymer, a softening agent and an antioxidant at the temperature of 130 to 150 ℃ under a vacuum condition to obtain a molten mixture;

(b) Heating the molten mixture to 150-170 ℃, adding hydrogenated tackifying resin, maleic anhydride modified tackifying resin, anti-ultraviolet agent, auxiliary anti-ultraviolet agent and coupling agent, stirring and mixing uniformly, vacuumizing to remove bubbles to form uniform viscous liquid, and stopping heating and stirring to obtain the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive.

The invention also provides application of any one of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesives in preparation of a weather-resistant waterproof coiled material.

Example 1

The embodiment provides a weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive which is mainly prepared from the following components in percentage by mass:

30% of hydrogenated tackifying resin, 15% of maleic anhydride modified tackifying resin, 10% of softening agent, 26% of styrene block copolymer, 12% of epoxidized SIS polymer, 0.5% of antioxidant, 1% of anti-ultraviolet agent, 5% of auxiliary anti-ultraviolet agent and 0.5% of coupling agent;

wherein, the hydrogenated tackifying resin is hydrogenated C5 petroleum resin, and the softening point is 100 ℃;

the maleic anhydride modified tackifying resin is maleic anhydride modified petroleum resin, a concentric new material TX-2200, and the softening point is 101 ℃;

the softener is Clarityl KN4010;

the styrene block copolymer was SIS1250L;

the epoxy value of the epoxidized SIS polymer was 0.39eq/100g;

the antioxidant is antioxidant 168;

the uvioresistant agent includes 327 and 774 in the mass ratio of 1: 1;

the auxiliary uvioresistant agent is titanium dioxide with the average grain diameter of 0.3 mu m;

the coupling agent is KH550.

The preparation method of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive comprises the following steps:

(a) Adding a styrene block copolymer, an epoxidized SIS polymer, a softener and an antioxidant into a reaction kettle, heating to 130-150 ℃, and stirring and melting while vacuumizing to a state that the polymer is completely molten to obtain a molten mixture;

(b) Heating the molten mixture to 150-170 ℃, slowly adding hydrogenated tackifying resin, maleic anhydride modified tackifying resin, anti-ultraviolet agent, auxiliary anti-ultraviolet agent and coupling agent, stirring and mixing uniformly, vacuumizing to remove bubbles, stopping heating and stirring after the whole reactant system becomes a uniform viscous liquid, and discharging when the reactant system is hot to obtain the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive.

Example 2

This example refers to weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive of example 1 and the preparation method thereof, and the difference is only that: the amounts of the components are different.

The dosage of each component of the example 2 is respectively as follows:

29% of hydrogenated tackifying resin, 18% of maleic anhydride modified tackifying resin, 12% of softening agent, 20% of styrene block copolymer, 15% of epoxidized SIS polymer, 0.5% of antioxidant, 2% of anti-ultraviolet agent, 3% of auxiliary anti-ultraviolet agent and 0.5% of coupling agent.

Example 3

This example refers to weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive of example 1 and the preparation method thereof, and the difference is only that: the amounts of the components are different.

The dosage of each component of the example 3 is respectively as follows:

25% of hydrogenated tackifying resin, 13% of maleic anhydride modified tackifying resin, 13.5% of softening agent, 30% of styrene block copolymer, 10% of epoxidized SIS polymer, 0.5% of antioxidant, 2% of anti-ultraviolet agent, 5% of auxiliary anti-ultraviolet agent and 1% of coupling agent.

Example 4

This example refers to weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive of example 2 and the preparation method thereof, and the difference is only that some raw materials are different in composition type.

The hydrogenated tackifying resin is DCPD, and the softening point is 98 ℃;

the maleic anhydride modified tackifying resin is maleic anhydride modified rosin resin, shenzhen Yipuno chemical Limited RM100, and the softening point is 100 ℃;

the softener is Clarityl PB1300;

the styrene block copolymer is SISYH-1126;

the antioxidant is antioxidant 1010;

the coupling agent is KH560.

Example 5

This example refers to the weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive of example 3 and the preparation method thereof, and the difference is only that some raw materials are different in composition type.

The hydrogenated tackifying resin is DCPD, and the softening point is 98 ℃;

the maleic anhydride modified tackifying resin is maleic anhydride modified rosin resin, shenzhen Yipuno chemical company RM100, and the softening point is 100 ℃;

the softener is kravayi PB1300;

the styrene block copolymer is SIS YH-1126;

the antioxidant is antioxidant 1010;

the coupling agent is KH560.

Example 6

This example refers to weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive of example 2 and the preparation method thereof, and the difference is only that some raw materials are different in composition type.

The hydrogenated tackifying resin is hydrogenated C9 petroleum resin and has a softening point of 100.8 ℃;

the styrene block copolymer is SIS JH-8161;

the coupling agent is KH560.

Example 7

This example refers to weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive of example 1 and the preparation method thereof, except that the amount of each component is different.

30% of hydrogenated tackifying resin, 16% of maleic anhydride modified tackifying resin, 10% of softening agent, 26% of styrene block copolymer, 11% of epoxidized SIS polymer, 0.5% of antioxidant, 1% of anti-ultraviolet agent, 5% of auxiliary anti-ultraviolet agent and 0.5% of coupling agent.

Example 8

This example refers to weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive of example 1 and the preparation method thereof, except that the amount of each component is different.

30% of hydrogenated tackifying resin, 13.5% of maleic anhydride modified tackifying resin, 10% of softening agent, 26% of styrene block copolymer, 13.5% of epoxidized SIS polymer, 0.5% of antioxidant, 1% of anti-ultraviolet agent, 5% of auxiliary anti-ultraviolet agent and 0.5% of coupling agent.

Comparative example 1

Comparative example 1 a weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive and a preparation method thereof according to example 1 are distinguished in that: the components are different.

The components and the use amounts of the comparative example 1 are respectively as follows:

30% of hydrogenated C5 petroleum resin, 15% of maleic anhydride modified petroleum resin, 15% of Clarityl KN 4010%, 1250L 38% of SIS, 168.5% of antioxidant, 327.5% of anti-ultraviolet agent, 774 0.5% of anti-ultraviolet agent and 0.5% of coupling agent.

Comparative example 2

Comparative example 2 the weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive and the preparation method thereof of reference example 4 are distinguished in that: the components are different.

In comparative example 2, no epoxidized SIS polymer was added, and the amount of the styrene block copolymer was 35%.

Comparative example 3

Comparative example 3 a weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive and a preparation method thereof of reference example 4 are distinguished in that: the components are different.

In comparative example 3, the auxiliary anti-ultraviolet agent titanium dioxide was not added, and the amount of the softening agent was 15%.

Comparative example 4

Comparative example 4 a weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive and a preparation method thereof of reference example 4 are distinguished in that: the amount of the components is different.

In comparative example 4, 22% of hydrogenated tackifying resin, 25% of maleic anhydride-modified tackifying resin, 12% of softening agent, 20% of styrene block copolymer, 15% of epoxidized SIS polymer, 0.5% of antioxidant, 2% of anti-ultraviolet agent, 3% of auxiliary anti-ultraviolet agent, and 0.5% of coupling agent.

Comparative example 5

Comparative example 5 the weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive of reference example 4 and the preparation method thereof are distinguished in that: the amount of the components is different.

In comparative example 5, 42% of hydrogenated tackifying resin, 5% of maleic anhydride-modified tackifying resin, 12% of softening agent, 20% of styrene block copolymer, 15% of epoxidized SIS polymer, 0.5% of antioxidant, 2% of anti-ultraviolet agent, 3% of auxiliary anti-ultraviolet agent, and 0.5% of coupling agent.

Comparative example 6

Comparative example 6 a weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive and a preparation method thereof of reference example 4 are distinguished in that: the amount of the components is different.

In comparative example 6, 32% of a hydrogenated tackifying resin, 15% of a maleic anhydride-modified tackifying resin, 12% of a softening agent, 30% of a styrene block copolymer, 5% of an epoxidized SIS polymer, 0.5% of an antioxidant, 2% of an anti-ultraviolet agent, 3% of an auxiliary anti-ultraviolet agent, and 0.5% of a coupling agent were used.

Comparative example 7

Comparative example 7 the weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive of reference example 4 and the preparation method thereof are distinguished in that: the amount of the components is different.

In comparative example 7, 32% of a hydrogenated tackifier resin, 15% of a maleic anhydride-modified tackifier resin, 12% of a softener, 15% of a styrene block copolymer, 20% of an epoxidized SIS polymer, 0.5% of an antioxidant, 2% of an anti-ultraviolet agent, 3% of an auxiliary anti-ultraviolet agent, and 0.5% of a coupling agent were used.

Comparative example 8

Comparative example 8 a weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive and a preparation method thereof of reference example 4 are distinguished in that:

the amount of the components is different.

In comparative example 8, 30% of hydrogenated tackifying resin, 20% of maleic anhydride-modified tackifying resin, 10% of softening agent, 26% of styrene block copolymer, 10% of epoxidized SIS polymer, 0.5% of antioxidant, 1% of anti-ultraviolet agent, 5% of auxiliary anti-ultraviolet agent, and 0.5% of coupling agent were used.

Comparative example 9

Comparative example 9 a weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive and a preparation method thereof of reference example 4, except that:

the amount of the components is different.

In comparative example 9, 30% of hydrogenated tackifying resin, 12% of maleic anhydride-modified tackifying resin, 10% of softening agent, 26% of styrene block copolymer, 18% of epoxidized SIS polymer, 0.5% of antioxidant, 1% of anti-ultraviolet agent, 5% of auxiliary anti-ultraviolet agent, and 0.5% of coupling agent were used.

Comparative example 10

Comparative example 10 a weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive and a preparation method thereof of reference example 4 are distinguished in that: the epoxidized SIS polymers are different.

The epoxy value of the epoxidized SIS polymer in comparative example 10 was 0.42eq/100g.

Comparative example 11

Comparative example 11 a weather-resistant waterproofing membrane hot-melt pressure-sensitive adhesive and a preparation method thereof of reference example 4 are distinguished in that: the epoxidized SIS polymers are different.

The epoxy value of the epoxidized SIS polymer in comparative example 11 was 0.25eq/100g.

Experimental example 1

To illustrate the properties of the hot melt pressure sensitive adhesives of the different examples and comparative examples, the following tests were carried out, the results of which are shown in tables 1 and 2.

The test methods in Table 1 and Table 2 are according to the national standard GB/T23457-2017.

TABLE 1 Performance test results for different hot-melt pressure-sensitive adhesives

TABLE 2 Performance test results for different hot-melt pressure-sensitive adhesives

From the test results, the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive prepared by the invention not only has excellent initial peel strength, the sand-coated peel strength of the post-cast cement mortar is more than or equal to 2.5N/mm under the standard condition, but also maintains the sand-coated peel strength of the post-cast cement mortar to be more than 85 percent (preferably more than or equal to 92 percent) after certain hot air aging treatment (treatment at 80 ℃ for 168 hours), maintains the sand-coated peel strength of the post-cast cement mortar to be more than 80 percent (preferably more than or equal to 84 percent) after soaking treatment (treatment at 23 ℃ for 168 hours), and performs treatment under certain ultraviolet conditions (60W/m) ² After 72 h) treatment, the sand-coated peel strength of the mortar and post-pouring cement mortar is kept above 90 percent (preferably more than or equal to 92 percent), and the mortar has excellent low-temperature flexibility, high-temperature heat resistance, no slippage, no dripping and excellent weather resistance.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. The weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive is characterized by being mainly prepared from the following components in percentage by mass:

25-40% of hydrogenated tackifying resin, 10-20% of maleic anhydride modified tackifying resin, 10-20% of softening agent, 20-30% of styrene block copolymer, 10-15% of epoxidized SIS polymer, 0.1-1% of antioxidant, 0.5-2% of anti-ultraviolet agent, 3-5% of auxiliary anti-ultraviolet agent and 0.3-1% of coupling agent;

the mass ratio of the maleic anhydride modified tackifying resin to the epoxidized SIS polymer is (1 to 1.5) to 1;

the epoxy value of the epoxidized SIS polymer is 0.35 to 0.4eq/100g;

the maleic anhydride modified tackifying resin comprises maleic anhydride modified petroleum resin TX-2200 and/or maleic anhydride modified rosin resin RM100.

2. The weatherable, waterproofing membrane hot melt pressure sensitive adhesive of claim 1, wherein the hydrogenated tackifying resin is any one or more of hydrogenated C5 tackifying resin, hydrogenated C9 tackifying resin and DCPD.

3. The weatherable, waterproof, roll hot melt pressure sensitive adhesive of claim 1, wherein the softening agent comprises any one or more of naphthenic oil, paraffinic oil, and polyisobutylene;

the styrenic block copolymer comprises any one or more of SIS, SBS, SEBS and SSBR;

the antioxidant comprises hindered phenol antioxidant and/or phosphite antioxidant.

4. The hot melt pressure sensitive adhesive for the weather-resistant waterproof roll according to claim 1, wherein the anti-ultraviolet agent comprises any one or more of a benzotriazole light absorber, a triazine light stabilizer and a hindered amine light stabilizer.

5. The weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive as claimed in claim 4, wherein the anti-ultraviolet agent comprises a benzotriazole light absorber and a hindered amine light stabilizer.

6. The weatherable waterproof roll hot melt pressure sensitive adhesive according to claim 1, wherein the auxiliary uv-resistant agent includes titanium dioxide;

the particle size of the auxiliary anti-ultraviolet agent is 0.2-0.4 mu m.

7. The hot melt pressure sensitive adhesive for weatherable waterproof roll according to claim 1, wherein the coupling agent comprises any one or more of an aminosilane coupling agent, an epoxy silane coupling agent, an acyloxy silane coupling agent, a vinyl silane coupling agent, an alkyl silane coupling agent and a phenyl silane coupling agent.

8. The preparation method of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive as claimed in any one of claims 1 to 7, which is characterized by comprising the following steps:

(a) Stirring and melting a styrene block copolymer, an epoxidized SIS polymer, a softener and an antioxidant at 130 to 150 ℃ under a vacuum condition to obtain a molten mixture;

(b) Heating the molten mixture to 150-170 ℃, adding hydrogenated tackifying resin, maleic anhydride modified tackifying resin, anti-ultraviolet agent, auxiliary anti-ultraviolet agent and coupling agent, stirring and mixing uniformly, vacuumizing to remove bubbles to form uniform viscous liquid, and stopping heating and stirring to obtain the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive.

9. The use of the weather-resistant waterproof coiled material hot-melt pressure-sensitive adhesive of any one of claims 1 to 7 in the preparation of a weather-resistant waterproof coiled material.