Fluorine-containing modified high-performance polyurethane crack pouring adhesive material and preparation method thereof

Abstract

The invention discloses a fluorine-containing modified high-performance polyurethane crack pouring adhesive material. The fluorine-containing modified high-performance polyurethane crack pouring adhesive material comprises a component A and a component B, the component A is prepared from the following raw materials in parts by weight: 20 to 35 parts of polyether polyol, 20 to 35 parts of filler, 5 to 10 parts of fluorine-containing modifier, 5 to 10 parts of cross-linking agent, 5 to 10 parts of chain extender, 10 to 20 parts of plasticizer and 2 to 5 parts of diluent; the component B comprises modified isocyanate, and the mass ratio of the component A to the component B is 2: 1. The grouting material has good flowability and is convenient to use in construction and crack pouring; secondly, a fluorine-containing modifier with relatively low surface energy is introduced, so that the surface energy of the material is reduced, and the hydrophobic property is enhanced; finally, a crosslinking agent with a maleic anhydride functional group is adopted, and the adhesion with a mixture is remarkably improved through a grafting reaction on a polymer chain.

Description

Technical Field

[0001] The invention relates to the technical field of highway asphalt pavement crack repair materials, and in particular to a fluorine-containing modified high-performance polyurethane crack filling glue material and a preparation method thereof. Background Art

[0002] During the long-term service of highways, under the continuous influence of multiple factors such as traffic pressure and natural environmental conditions, the road surface will gradually show cracks, potholes, cracks and other damage phenomena. These road surface diseases not only pose a threat to driving safety and riding comfort, but also further promote the aging process and damage of the road surface. Among them, cracks are the most common type of disease, and their potential impact is particularly significant. If timely and effective measures are not taken to deal with the crack problem, it is very likely to lead to serious restrictions on or even interruption of the traffic capacity of the entire highway. For the main disease of cracks, the current main repair method is to inject sealant into the cracks, so as to achieve the closure and reinforcement of the cracks, thereby curbing the further expansion of the disease.

[0003] The crack repair technology is to inject the crack repair material into the road surface diseased part, penetrate into the bottom of the gap, and completely fill the crack, so as to firmly and permanently repair the road surface. It can effectively prevent the cracks from spreading and forming secondary diseases, and ensure the flatness of the road surface and driving safety. However, the crack repair ability of traditional crack repair glue is limited. When affected by factors such as climate, temperature, precipitation, etc., especially precipitation factors, the bonding strength of traditional crack repair glue will be greatly reduced after being soaked in water. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above-mentioned existing fluorine-containing modified high-performance polyurethane caulking glue materials and preparation methods thereof, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a fluorine-modified high-performance polyurethane caulking glue material and a preparation method thereof, which has good fluidity and is convenient for construction and caulking; secondly, a fluorine-containing modifier with low surface energy is introduced to reduce the surface energy of the material and enhance its hydrophobic properties; finally, a cross-linking agent with maleic anhydride functional group is used to significantly improve the adhesion to the mixture through a grafting reaction on the polymer chain.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a fluorine-containing modified high-performance polyurethane caulking adhesive material, the fluorine-containing modified high-performance polyurethane caulking adhesive material comprises component A and component B;

[0008] Component A includes the following raw materials by weight: 20-35 parts of polyether polyol, 20-35 parts of filler, 5-10 parts of fluorine-containing modifier, 5-10 parts of cross-linking agent, 5-10 parts of chain extender, 10-20 parts of plasticizer and 2-5 parts of diluent;

[0009] The B component includes modified isocyanate, and the mass ratio of the A component to the B component is 2:1.

[0010] As a preferred scheme of the fluorine-containing modified high-performance polyurethane caulking adhesive material described in the present invention, wherein: the polyether polyol includes one or more of pentaerythritol-based polyether tetraol, sucrose polyether, and hexahydroxy polyether; the filler is one of limestone mineral powder and basalt mineral powder.

[0011] As a preferred embodiment of the fluorine-containing modified high-performance polyurethane caulking adhesive material described in the present invention, the fluorine-containing modifier is one of perfluorooctyl ethyl acrylate, perfluorooctyl iodine, perfluorooctane sulfonic acid, and heptadecafluorodecyltrimethoxysilane.

[0012] As a preferred embodiment of the fluorine-containing modified high-performance polyurethane caulking adhesive material of the present invention, the cross-linking agent is one of maleic anhydride grafted polypropylene and maleic anhydride grafted ethylene-vinyl acetate copolymer; and the chain extender is 1,4-butanediol.

[0013] As a preferred embodiment of the fluorine-containing modified high-performance polyurethane caulking adhesive material of the present invention, the plasticizer is one or more of dioctyl phthalate and di(2-ethylhexyl) adipate; and the diluent is dibutyl phthalate.

[0014] As a preferred embodiment of the fluorine-containing modified high-performance polyurethane caulking adhesive material described in the present invention, the modified isocyanate in component B includes one or more of hexamethylene diisocyanate, para-xylene diisocyanate, polymethylene polyphenyl isocyanate, liquefied diphenylmethane diisocyanate, and isophorone diisocyanate.

[0015] A method for preparing a fluorine-containing modified high-performance polyurethane caulking adhesive material comprises the following steps:

[0016] Step 1: Stir the polyether polyol, filler, fluorine-containing modifier, cross-linking agent, chain extender, plasticizer and diluent at 300 r / min for 1-2 hours to obtain component A;

[0017] Step 2: Component B includes modified isocyanate, and component A and component B are fully miscible in a mass ratio of 2:1 to obtain a fluorine-containing modified high-performance polyurethane caulking adhesive material.

[0018] As a preferred embodiment of the method for preparing the fluorine-containing modified high-performance polyurethane caulking glue material of the present invention, the cross-linking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer, and the specific preparation process of the maleic anhydride grafted ethylene-vinyl acetate copolymer is as follows:

[0019] (1) maleic anhydride, initiator and solvent were mixed in a mass ratio of 2:1:10 and stirred at 300 r / min for 10-15 min to fully dissolve;

[0020] (2) The mixed solution in step (1) is mixed with the elastomer rubber in a mass ratio of 10:1, stirred at 300 r / min for 10 min at 60° C., and after the solvent is completely volatilized, extruded into granules on a twin-screw extruder, and the granules are vacuum dried at 50-60° C. for 6 h.

[0021] As a preferred scheme for the preparation method of the fluorine-modified high-performance polyurethane caulking adhesive material described in the present invention, wherein: the polyether polyol includes one or more of pentaerythritol-based polyether tetraol, sucrose polyether, and hexahydroxy polyether; the filler is one of limestone mineral powder and basalt mineral powder; the fluorine-containing modifier is one of perfluorooctyl ethyl acrylate, perfluorooctyl iodide, perfluorooctyl sulfonic acid, and heptadecafluorodecyltrimethoxysilane; the chain extender is 1,4-butanediol; the plasticizer is one or more of dioctyl phthalate and di(2-ethylhexyl) adipate; the diluent is dibutyl phthalate; the initiator includes one of diisopropyl peroxide and benzoyl peroxide; the solvent is acetone; and the elastomer rubber is ethylene-vinyl acetate copolymer.

[0022] Beneficial effects of the present invention:

[0023] (1) The fluorine-containing modified high-performance polyurethane caulking adhesive material of the present invention firstly has good fluidity and is convenient for use in construction and caulking.

[0024] (2) The fluorine-containing modified high-performance polyurethane caulking adhesive material of the present invention is based on the surface free energy theory. By introducing a fluorine-containing modifier with low surface energy, the surface energy of the caulking adhesive material is reduced, its hydrophobic properties are enhanced, and the bonding performance of the caulking adhesive material in a water-immersed state is ensured.

[0025] (3) The fluorine-containing modified high-performance polyurethane caulking adhesive material of the present invention uses a cross-linking agent with maleic anhydride functional groups, which significantly improves the adhesion with the mixture through a grafting reaction on the polymer chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0027] Figure 1 It is a schematic diagram of a test piece of the fluorine-containing modified high-performance polyurethane caulking adhesive material and a preparation method thereof of the present invention. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0032] Reference Figure 1 , provides a fluorine-containing modified high-performance polyurethane caulking adhesive material, the fluorine-containing modified high-performance polyurethane caulking adhesive material includes component A and component B;

[0033] Component A includes the following raw materials by weight: 20-35 parts of polyether polyol, 20-35 parts of filler, 5-10 parts of fluorine-containing modifier, 5-10 parts of cross-linking agent, 5-10 parts of chain extender, 10-20 parts of plasticizer and 2-5 parts of diluent;

[0034] The B component includes modified isocyanate, and the mass ratio of the A component to the B component is 2:1.

[0035] The polyether polyol includes one or more of pentaerythritol-based polyether tetraol, sucrose polyether, and hexahydroxy polyether; and the filler is one of limestone powder and basalt powder.

[0036] Specifically, the fluorine-containing modifier is one of perfluorooctyl ethyl acrylate, perfluorooctyl iodide, perfluorooctane sulfonic acid, and heptadecafluorodecyltrimethoxysilane.

[0037] The crosslinking agent is one of maleic anhydride grafted polypropylene and maleic anhydride grafted ethylene-vinyl acetate copolymer; and the chain extender is 1,4-butanediol.

[0038] Furthermore, the plasticizer is one or more of dioctyl phthalate and di(2-ethylhexyl) adipate; and the diluent is dibutyl phthalate.

[0039] The modified isocyanate in component B includes one or more of hexamethylene diisocyanate, p-xylylene diisocyanate, polymethylene polyphenyl isocyanate, liquefied diphenylmethane diisocyanate, and isophorone diisocyanate.

[0040] A method for preparing a fluorine-containing modified high-performance polyurethane caulking adhesive material comprises the following steps:

[0041] Step 1: Stir the polyether polyol, filler, fluorine-containing modifier, cross-linking agent, chain extender, plasticizer and diluent at 300 r / min for 1-2 hours to obtain component A;

[0042] Step 2: Component B includes modified isocyanate, and component A and component B are fully miscible in a mass ratio of 2:1 to obtain a fluorine-containing modified high-performance polyurethane caulking adhesive material.

[0043] Wherein, the crosslinking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer, and the specific preparation process of maleic anhydride grafted ethylene-vinyl acetate copolymer is as follows:

[0044] (1) maleic anhydride, initiator and solvent were mixed in a mass ratio of 2:1:10 and stirred at 300 r / min for 10-15 min to fully dissolve;

[0045] (2) The mixed solution in step (1) is mixed with the elastomer rubber in a mass ratio of 10:1, stirred at 300 r / min for 10 min at 60° C., and after the solvent is completely volatilized, extruded into granules on a twin-screw extruder, and the granules are vacuum dried at 50-60° C. for 6 h.

[0046] Specifically, the polyether polyol includes one or more of pentaerythritol-based polyether tetraol, sucrose polyether, and hexahydroxy polyether; the filler is one of limestone mineral powder and basalt mineral powder; the fluorine-containing modifier is one of perfluorooctyl ethyl acrylate, perfluorooctyl iodide, perfluorooctyl sulfonic acid, and heptadecafluorodecyl trimethoxysilane; the chain extender is 1,4-butanediol; the plasticizer is one or more of dioctyl phthalate and di(2-ethylhexyl) adipate; the diluent is dibutyl phthalate; the initiator includes one of diisopropyl peroxide and benzoyl peroxide; the solvent is acetone; and the elastomer rubber is ethylene-vinyl acetate copolymer.

[0047] Example 1

[0048] A fluorine-containing modified high-performance polyurethane caulking glue material and its preparation method:

[0049] The fluorine-modified high-performance polyurethane caulking adhesive material is composed of component A and component B. Component A specifically includes: 25 parts of polyether polyol, 25 parts of filler, 10 parts of fluorine-containing modifier, 10 parts of cross-linking agent, 10 parts of chain extender, 15 parts of plasticizer and 5 parts of diluent, with a total mass of 100 parts. Component B includes modified isocyanate. The mass ratio of component A to component B is 2:1.

[0050] Wherein, the polyether polyol is a pentaerythritol-based polyether tetraol;

[0051] The filler is limestone powder;

[0052] The fluorinated modifier is perfluorooctyl ethyl acrylate;

[0053] The crosslinking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer;

[0054] The chain extender is 1,4-butanediol;

[0055] The plasticizer is di(2-ethylhexyl) adipate;

[0056] The diluent is dibutyl phthalate;

[0057] The specific preparation process of maleic anhydride grafted ethylene-vinyl acetate copolymer is as follows:

[0058] (1) maleic anhydride, initiator and solvent were mixed in a mass ratio of 2:1:10 and stirred at 300 r / min for 15 min to fully dissolve;

[0059] (2) The mixed solution in step 1 is mixed with the elastomer rubber in a mass ratio of 10:1, stirred at 60°C and 300 r / min for 10 min, and after the solvent is completely volatilized, extruded into granules on a twin-screw extruder, and the granules are vacuum dried at 60°C for 6 h to obtain;

[0060] Wherein, the initiator is dicumyl peroxide;

[0061] The solvent is acetone;

[0062] The elastomer rubber is ethylene-vinyl acetate copolymer;

[0063] Stir polyether polyol, filler, fluorine-containing modifier, crosslinking agent, chain extender, plasticizer and diluent at 300 r / min for 1-2 hours to obtain component A;

[0064] Component A and component B are fully mixed in a mass ratio of 2:1 to obtain a fluorine-containing modified high-performance polyurethane caulking adhesive material.

[0065] Example 2

[0066] A fluorine-containing modified high-performance polyurethane caulking glue material and its preparation method:

[0067] The fluorine-modified high-performance polyurethane caulking adhesive material is composed of component A and component B. Component A specifically includes: 30 parts of polyether polyol, 30 parts of filler, 5 parts of fluorine-containing modifier, 10 parts of cross-linking agent, 10 parts of chain extender, 20 parts of plasticizer and 5 parts of diluent, with a total mass of 100 parts. Component B includes modified isocyanate. The mass ratio of component A to component B is 2:1.

[0068] Wherein, the polyether polyol is sucrose polyether;

[0069] The filler is limestone powder;

[0070] The fluorinated modifier is perfluorooctyl iodide;

[0071] The crosslinking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer;

[0072] The chain extender is 1,4-butanediol;

[0073] The plasticizer is di(2-ethylhexyl) adipate;

[0074] The diluent is dibutyl phthalate;

[0075] The specific preparation process of maleic anhydride grafted ethylene-vinyl acetate copolymer is as follows:

[0076] (1) maleic anhydride, initiator and solvent were mixed in a mass ratio of 2:1:10 and stirred at 300 r / min for 13 min to fully dissolve;

[0077] (2) The mixed solution in step 1 is mixed with the elastomer rubber in a mass ratio of 10:1, stirred at 300 r / min for 10 min at 60° C., and after the solvent is completely volatilized, extruded into granules on a twin-screw extruder, and the granules are vacuum dried at 55° C. for 6 h to obtain;

[0078] Wherein, the initiator is benzoyl peroxide;

[0079] The solvent is acetone;

[0080] The elastomer rubber is ethylene-vinyl acetate copolymer;

[0081] Stir polyether polyol, filler, fluorine-containing modifier, crosslinking agent, chain extender, plasticizer and diluent at 300 r / min for 1-2 hours to obtain component A;

[0082] Component A and component B are fully mixed in a mass ratio of 2:1 to obtain a fluorine-containing modified high-performance polyurethane caulking adhesive material.

[0083] Example 3

[0084] A fluorine-containing modified high-performance polyurethane caulking glue material and its preparation method:

[0085] The fluorine-modified high-performance polyurethane caulking adhesive material is composed of component A and component B. Component A specifically includes: 30 parts of polyether polyol, 30 parts of filler, 10 parts of fluorine-containing modifier, 5 parts of cross-linking agent, 10 parts of chain extender, 20 parts of plasticizer and 5 parts of diluent, with a total mass of 100 parts. Component B includes modified isocyanate. The mass ratio of component A to component B is 2:1.

[0086] Wherein, the polyether polyol is hexahydroxy polyether;

[0087] The filler is basalt powder;

[0088] The fluorinated modifier is perfluorooctane sulfonic acid;

[0089] The crosslinking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer;

[0090] The chain extender is 1,4-butanediol;

[0091] The plasticizer is di(2-ethylhexyl) adipate;

[0092] The diluent is dibutyl phthalate;

[0093] The specific preparation process of maleic anhydride grafted ethylene-vinyl acetate copolymer is as follows:

[0094] (1) maleic anhydride, initiator and solvent were mixed in a mass ratio of 2:1:10 and stirred at 300 r / min for 10 min to fully dissolve;

[0095] (2) The mixed solution in step 1 is mixed with the elastomer rubber in a mass ratio of 10:1, stirred at 300 r / min for 10 min at 60° C., and after the solvent is completely volatilized, extruded into granules on a twin-screw extruder, and the granules are vacuum dried at 60° C. for 6 h to obtain;

[0096] Wherein, the initiator is dicumyl peroxide;

[0097] The solvent is acetone;

[0098] The elastomer rubber is ethylene-vinyl acetate copolymer;

[0099] Stir polyether polyol, filler, fluorine-containing modifier, crosslinking agent, chain extender, plasticizer and diluent at 300 r / min for 1-2 hours to obtain component A;

[0100] Component A and component B are fully mixed in a mass ratio of 2:1 to obtain a fluorine-containing modified high-performance polyurethane caulking adhesive material.

[0101] Comparative Example 1

[0102] Same as Example 1, except that no fluorine-containing modifier is added.

[0103] Comparative Example 2

[0104] Same as Example 1, except that no cross-linking agent is added.

[0105] Comparative Example 3

[0106] The same as Example 1, except that no fluorine-containing modifier and cross-linking agent are added.

[0107] The performance of the fluorine-modified high-performance polyurethane caulking glue materials prepared in the examples and comparative examples was tested.

[0108] The bonding strength test of the polyurethane grouting material prepared above was carried out. According to the "Waterproof Coating for Roads and Bridges" (JC / T975-2005), asphalt concrete specimens and cement concrete specimens were formed, and the bonding fixtures were glued to both sides of the specimens with high-strength epoxy resin adhesive. Figure 1 The specimen bonded with the fixture was placed under standard conditions for 24 hours, and then placed in a 45°C water bath for 3 days. Finally, the bonding performance was tested using a tensile testing machine with a loading rate of 10 mm / min. The bonding strength A was calculated using the following formula:

[0109]

[0110] Where:

[0111] q——The bonding strength of A caulking glue, in megapascals (MPa);

[0112] P——peak force applied to the specimen, in Newton (N);

[0113] M is the bonding area between the caulking glue material and the specimen, in square centimeters (cm2).

[0114] Table 1 Bond strength of different samples

[0115]

[0116]

[0117] It can be seen from Example 1 and Comparative Example 1 that the fluorine-containing modifier has a significant effect on improving the water-immersion bonding strength of the polyurethane caulking adhesive material; it can be seen from Example 1 and Comparative Example 2 that the cross-linking agent significantly improves the adhesion of the polyurethane caulking adhesive material; by comparing Examples 1-3 with Comparative Example 3, it can be seen that the cross-linking agent can significantly improve the adhesion of the polyurethane caulking adhesive material, but under water immersion conditions, its adhesion cannot reach the optimal state, and by introducing a fluorine-containing modifier with lower surface energy, its excellent water-immersion adhesion performance can be guaranteed, and the polyurethane caulking adhesive material compounded with the fluorine-containing modifier and the cross-linking agent has a bonding strength that is 120.4% higher than that of conventional materials.

[0118] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fluorine-containing modified high-performance polyurethane caulking adhesive material, characterized in that: The fluorine-containing modified high-performance polyurethane caulking adhesive material includes component A and component B; Component A includes the following raw materials by weight: 20-35 parts of polyether polyol, 20-35 parts of filler, 5-10 parts of fluorine-containing modifier, 5-10 parts of cross-linking agent, 5-10 parts of chain extender, 10-20 parts of plasticizer and 2-5 parts of diluent; The B component includes modified isocyanate, and the mass ratio of the A component to the B component is 2:

1.

2. The fluorine-containing modified high-performance polyurethane caulking adhesive material according to claim 1 is characterized in that: The polyether polyol includes one or more of pentaerythritol-based polyether tetraol, sucrose polyether, and hexahydroxy polyether; the filler is one of limestone mineral powder and basalt mineral powder.

3. The fluorine-containing modified high-performance polyurethane caulking adhesive material according to claim 2 is characterized in that: The fluorine-containing modifier is one of perfluorooctyl ethyl acrylate, perfluorooctyl iodide, perfluorooctane sulfonic acid and heptadecafluorodecyl trimethoxysilane.

4. The fluorine-containing modified high-performance polyurethane caulking adhesive material according to claim 1 is characterized in that: The crosslinking agent is one of maleic anhydride grafted polypropylene and maleic anhydride grafted ethylene-vinyl acetate copolymer; the chain extender is 1,4-butanediol.

5. The fluorine-containing modified high-performance polyurethane caulking adhesive material according to claim 4 is characterized in that: The plasticizer is one or more of dioctyl phthalate and di(2-ethylhexyl) adipate; and the diluent is dibutyl phthalate.

6. The fluorine-containing modified high-performance polyurethane caulking adhesive material according to claim 1, characterized in that: The modified isocyanate in the B component includes one or more of hexamethylene diisocyanate, p-xylylene diisocyanate, polymethylene polyphenyl isocyanate, liquefied diphenylmethane diisocyanate, and isophorone diisocyanate.

7. A method for preparing a fluorine-containing modified high-performance polyurethane caulking adhesive material, characterized in that: The following steps are involved: Step 1: Stir the polyether polyol, filler, fluorine-containing modifier, cross-linking agent, chain extender, plasticizer and diluent at 300 r / min for 1-2 hours to obtain component A; Step 2: Component B includes modified isocyanate, and component A and component B are fully miscible in a mass ratio of 2:1 to obtain a fluorine-containing modified high-performance polyurethane caulking adhesive material.

8. The method for preparing the fluorine-containing modified high-performance polyurethane caulking adhesive material according to claim 7, characterized in that: The crosslinking agent is maleic anhydride grafted ethylene-vinyl acetate copolymer, and the specific preparation process of the maleic anhydride grafted ethylene-vinyl acetate copolymer is as follows: (1) maleic anhydride, initiator and solvent were mixed in a mass ratio of 2:1:10 and stirred at 300 r / min for 10-15 min to fully dissolve; (2) The mixed solution in step (1) is mixed with the elastomer rubber in a mass ratio of 10:1, stirred at 300 r / min for 10 min at 60° C., and after the solvent is completely volatilized, extruded into granules on a twin-screw extruder, and the granules are vacuum dried at 50-60° C. for 6 h.

9. The method for preparing the fluorine-containing modified high-performance polyurethane caulking adhesive material according to claim 8, characterized in that: The polyether polyol includes one or more of pentaerythritol-based polyether tetraol, sucrose polyether, and hexahydroxy polyether; the filler is one of limestone mineral powder and basalt mineral powder; the fluorine-containing modifier is one of perfluorooctyl ethyl acrylate, perfluorooctyl iodide, perfluorooctyl sulfonic acid, and heptadecafluorodecyl trimethoxysilane; the chain extender is 1,4-butanediol; the plasticizer is one or more of dioctyl phthalate and di(2-ethylhexyl) adipate; the diluent is dibutyl phthalate; the initiator includes one of diisopropylbenzene peroxide and benzoyl peroxide; the solvent is acetone; and the elastomer rubber is ethylene-vinyl acetate copolymer.

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