Special anti-erosion hot vulcanization adhesive for automobile parts and preparation method thereof

Abstract

The application relates to the technical field of adhesives, belongs to the category of IPC C09J123 / 34, and discloses a special anti-erosion hot vulcanization adhesive for automobile accessories and a preparation method thereof, wherein the raw material composition comprises the following components in mass fraction: functional rubber 5-30%, special vulcanizing agent 1-10%, metal oxide 1-10%, carbon black 1-10%, silicon dioxide 0.1-10%, and solvent 70-80%. The functional rubber with a specific Mooney viscosity is selected, the metal oxide is modified, and the metal oxide, the carbon black and the silicon dioxide are compounded, so that the prepared adhesive has high bonding strength and excellent anti-erosion and anti-aging performances.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of adhesives, in particular to the field of IPC C09J123 / 34, and more particularly to a special anti-washing hot vulcanization adhesive for automobile accessories and a preparation method thereof. BACKGROUND

[0002] Automobile shock absorbing parts account for half of the market in the bonding of elastomers and substrates. There are many types of automobile shock absorbing products, mostly chassis system bushing products and engine system suspension top rubber. In order to pursue efficiency, the automobile accessory industry usually adopts injection and pressure vulcanization process. During the injection and pressure vulcanization process, the rubber hot fluid enters the flow channel through pressure, then fills the mold, and the skeleton coated with adhesive is finally formed under the conditions of temperature, time and pressure. The rubber hot fluid is easy to wash away the adhesive on the surface of the skeleton coated with adhesive during high-speed flow, which is called "washing". Severe washing phenomenon can lead to failure of the product and the adhesive.

[0003] The current industry commonly used solution is to use Chemlok 6125 or Thixon 526EF products. This type of product has weak general performance on rubber, and some difficult-to-bond rubbers such as EPDM or suspension rubber cannot be matched. In addition, the dry film hardness of the adhesive can be improved by pre-curing the adhesive, so as to reduce the situation that the adhesive is washed away during vulcanization. However, pre-curing can easily consume the active ingredients in the adhesive in advance, thereby weakening the bonding performance on rubber and causing bonding failure.

[0004] To solve the above problems, the application file CN201811041754.6 discloses a hot vulcanization adhesive special for shock insulation high damping rubber, which is prepared from a crosslinking agent, a halogenated rubber, a metal oxide, a maleimide compound, a vulcanization accelerator, a pigment and filler, and a solvent. The prepared adhesive has good impact resistance and shock absorption performance, and can produce good bonding effect with high damping rubber used in the shock insulation industry. However, it has certain limitations on the substrate bonded with the adhesive, and the aging resistance is not obviously improved.

[0005] The application file CN202110160150.9 discloses a new type of low VOC hot vulcanization adhesive and its use method. The raw materials include chlorinated rubber, metal oxide, inert pigment, crosslinking agent, accelerator and solvent. The prepared adhesive has high adhesion and low VOC emission, but the impact resistance is weak. SUMMARY

[0006] In order to solve the above problems, the present application provides a special anti-washing hot vulcanization adhesive for automobile accessories, and the raw materials include, by mass fraction, 5-30% of functional rubber, 1-10% of special vulcanizing agent, 1-10% of metal oxide, 1-10% of carbon black, 0.1-10% of silicon dioxide, and 70-80% of solvent.

[0007] Preferably, the special anti-washing hot vulcanization adhesive for automobile accessories includes, by mass fraction, 5-15% of functional rubber, 4-8% of special vulcanizing agent, 1-5% of metal oxide, 1-5% of carbon black, 0.1-5% of silicon dioxide, and 70-80% of solvent.

[0008] Preferably, the solvent includes one or more of xylene and methyl isobutyl ketone.

[0009] Further preferably, the solvent is xylene (CAS number: 1330-20-7) purchased from Shandong Hongcheng Chemical Co., Ltd.

[0010] Preferably, the functional rubber includes one or more of alkylated chlorosulfonated polyethylene and chlorosulfonated polyethylene.

[0011] Further preferably, the functional rubber is chlorosulfonated polyethylene.

[0012] Further preferably, the chlorosulfonated polyethylene has a Mooney viscosity (ML 100℃ 1+4) of 30-60.

[0013] Further preferably, the chlorosulfonated polyethylene has a Mooney viscosity (ML 100℃ 1+4) of 40-50.

[0014] Chlorosulfonated polyethylene has excellent aging resistance and corrosion resistance, and can be used as a raw material for adhesives. The Mooney viscosity of chlorosulfonated polyethylene has a greater impact on the bonding performance and wettability. In the present application, the adhesive is applied to automobile accessories, which requires high bonding strength. When the Mooney viscosity (ML 100℃ 1+4) of chlorosulfonated polyethylene is 40-50, the adhesive has good wettability to the substrate under high bonding strength. The present applicant speculates that when the Mooney viscosity (ML 100℃ 1+4) of chlorosulfonated polyethylene is 40-50, the molecular weight of chlorosulfonated polyethylene is high, and the defects in the material are less, which can improve the strength of the adhesive layer material and thus improve the bonding strength of the adhesive; and the molecular weight distribution of chlorosulfonated polyethylene is wide, the surface wettability of the adhesive is good, which is conducive to improving the universality of the adhesive to the substrate.

[0015] Further preferably, the chlorosulfonated polyethylene is purchased from Jinan Xuanxiang Chemical Co., Ltd. and has a model number 3304.

[0016] Preferably, the special vulcanizing agent is one or more of nitrosobenzene, p-nitrosotoluene, p-dinitrosobenzene, m-dinitrosobenzene, o-dinitrosobenzene.

[0017] Further preferably, the special vulcanizing agent is p-dinitrosobenzene.

[0018] Further preferably, the mass ratio of the chlorosulfonated polyethylene to the p-dinitrosobenzene is (0.8-1.2):1.

[0019] In the present application, by controlling the mass ratio of the chlorosulfonated polyethylene to the p-dinitrosobenzene to be (0.8-1.2):1, the aging resistance and adhesion of the adhesive are effectively improved. The chlorosulfonated polyethylene is subjected to a vulcanization process, and a certain three-dimensional network structure is formed due to crosslinking, thereby improving the elasticity, wear resistance, and other properties. If the crosslinking density is too large, the dense crosslinking network structure hinders the directional arrangement of the molecules, and also causes the network structure to be unevenly distributed, resulting in a decrease in the adhesive strength of the adhesive. If the crosslinking density is too small, the hardness required by the adhesive cannot be met. The applicant has found that, when the mass ratio of the chlorosulfonated polyethylene to the p-dinitrosobenzene is controlled to be (0.8-1.2):1, the thermal stability and adhesion of the adhesive are effectively improved. The applicant speculates that the specific amount of the chlorosulfonated polyethylene and the p-dinitrosobenzene work together to make the adhesive have good adhesive strength at a certain hardness, and the crosslinking network structure is evenly distributed, the crosslinking structure is not easily changed, the molecular chain is not easily broken, and the thermal stability is improved.

[0020] Further preferably, the mass ratio of the chlorosulfonated polyethylene to the special vulcanizing agent is 1:1.

[0021] Further preferably, the p-dinitrosobenzene (CAS No.: 105-12-4) is purchased from Hubei Xirunde Chemical Co., Ltd.

[0022] Preferably, the metal oxide is zirconium dioxide.

[0023] Further preferably, the zirconium dioxide includes one or more of modified zirconium dioxide and zirconium dioxide.

[0024] Further preferably, the modified zirconium dioxide includes one or more of oil dispersant modified zirconium dioxide, silane coupling agent modified zirconium dioxide, and phthalate coupling agent modified zirconium dioxide.

[0025] Further preferably, the modified zirconium dioxide is oil dispersant modified zirconium dioxide.

[0026] Further preferably, the oil dispersant modified zirconium dioxide includes one or more of RS-100 modified zirconium dioxide and BYK-P104S modified zirconium dioxide.

[0027] Further preferably, the oily dispersant modified zirconium dioxide is BYK-P 104S modified zirconium dioxide, and the BYK-P 104S is a solution of a low-molecular-weight unsaturated polycarboxylic acid polymer plus a polysiloxane copolymer.

[0028] In the present application, BYK-P 104S modified zirconium dioxide is used as a filler to effectively improve the hardness and adhesion of the adhesive. Zirconium dioxide itself has high hardness, and adding it to the adhesive can improve the hardness of the adhesive, but the compatibility of zirconium dioxide with other substances in the system needs to be improved. In the present application, zirconium dioxide is modified by the oily dispersant BYK-P 104S, which effectively improves the compatibility of zirconium dioxide in the system, further improves the dry film hardness and adhesion strength of the adhesive, and has high resistance to washing.

[0029] Further preferably, the BYK-P 104S modified zirconium dioxide is prepared from the following raw materials: zirconium dioxide, dimethyl, and dispersant BYK-P 104S, and the preparation method comprises the following steps:

[0030] (1) 2 g of zirconium dioxide is dispersed in 100 ml of dimethylbenzene, 0.02-0.06 g of dispersant BYK-P 104S is added, the temperature is raised to 70°C, and the mixture is dispersed in a high-speed disperser for 3 h to obtain a suspension A;

[0031] (2) The suspension A is dried at 105°C for 3 h to obtain the BYK-P 104S modified zirconium dioxide.

[0032] Further preferably, the average particle size of the zirconium dioxide is 40-60 nm.

[0033] Further preferably, the average particle size of the zirconium dioxide is 50 nm.

[0034] Further preferably, the zirconium dioxide (CAS No.: 1314-23-4) is purchased from Hangzhou Hengna New Material Co., Ltd.; the dimethylbenzene (CAS No.: 1330-20-7) is purchased from Shandong Hongcheng Chemical Co., Ltd.; and the BYK-P 104S is purchased from Guangzhou Yinman New Material Co., Ltd.

[0035] Preferably, the carbon black includes medium reinforcing carbon black.

[0036] Further preferably, the medium reinforcing carbon black includes one or more of carbon black N326 and carbon black N330.

[0037] Further preferably, the medium reinforcing carbon black is carbon black N330, which is purchased from Weifang Bolacarbon Material Co., Ltd.

[0038] Further preferably, the mass ratio of the BYK-P 104S modified zirconium dioxide, carbon black N330, and the silica is 3:(2-4):(0.4-1).

[0039] The fillers can play a role in reinforcing the adhesive, especially the adhesive used for automobile parts, which needs certain hardness and adhesion to resist erosion. Metal oxides, carbon black and silica can improve the hardness of the adhesive, but too much metal oxide will affect the peel strength of the adhesive, and too much carbon black and silica will not disperse well, affecting the overall performance of the adhesive. In the present application, the mass ratio of the BYK-P 104S modified zirconium dioxide, carbon black N330, and the silica is controlled to be 3:(2-4):(0.4-1), which effectively improves the hardness and erosion resistance of the adhesive. The applicant speculates that a certain amount of BYK-P 104S modified zirconium dioxide, carbon black N330, and silica added to the adhesive, carbon black N330 is a high-structure carbon black, which can greatly improve the modulus of the adhesive and reduce elastic deformation; through the joint action of the three, the dispersion in the system is good, which effectively improves the hardness and erosion resistance of the adhesive on the basis of good bonding strength.

[0040] Further preferably, the mass ratio of the BYK-P 104S modified zirconium dioxide, carbon black N330, and the silica is 3:(2-4):(0.4-1).

[0041] Preferably, the silica is a precipitated silica.

[0042] Further optimization, the mesh number of the precipitated silica is 2500-3500 mesh.

[0043] Further optimization, the mass ratio of the precipitated silica, carbon black N330, and chlorosulfonated polyethylene is (0.4-1):(2-4):(5.8-6.2).

[0044] The aging of the adhesive is usually caused by light and heat, and the silica can absorb a large amount of ultraviolet light, and the carbon black has good stability to light and heat, and can be added to the adhesive to slow down the light and heat aging. However, the amount of silica added cannot be too much, otherwise the particles will be too close to each other, which will produce more micro-cracks and reduce the overall performance of the adhesive. In the present application, the mass ratio of precipitated silica to chlorosulfonated polyethylene is (0.4-1):(2-4):(5.8-6.2), which effectively improves the aging resistance and erosion resistance of the adhesive. The applicant speculates that: under the action of a certain amount of silica, carbon black N330 and chlorosulfonated polyethylene, the silica (especially 2500-3500 mesh precipitated silica) is uniformly distributed in the voids of the polymer chain of the adhesive, showing high fluidity, adjusting the settling performance of the adhesive, avoiding obvious bottom precipitation of the adhesive, and having good compatibility with the system, effectively improving the aging resistance and erosion resistance of the adhesive.

[0045] Further optimization, the mesh number of the precipitated silica is 3000 mesh.

[0046] Further optimization, the mass ratio of the precipitated silica to chlorosulfonated polyethylene is 0:8:2:6.

[0047] Further optimization, the precipitated silica (CAS number: 10279-57-9) is purchased from Hebei Amy Inner Technology Co., Ltd.

[0048] The second part of the present application provides a preparation method of a special erosion-resistant hot vulcanized adhesive for automobile accessories. The functional rubber, filler, special vulcanizing agent and solvent are mixed in the formula amount, stirred at 45-55℃ and 400-800rpm for 20-40min to obtain the hot vulcanized adhesive.

[0049] Beneficial effects

[0050] (1) The present application uses chlorosulfonated polyethylene with a Mooney viscosity (ML100℃ 1+4) of 40-50, and the prepared adhesive has good wettability for the substrate under high bonding strength.

[0051] (2) In the present application, by controlling the mass ratio of chlorosulfonated polyethylene to special vulcanizing agent to be (0.8-1.2):1, the aging resistance and bonding performance of the adhesive are effectively improved.

[0052] (3) In the present application, BYK-P 104S is used to modify zirconium dioxide, which effectively improves the hardness and bonding performance of the adhesive.

[0053] (4) In the present application, the mass ratio of the control BYK-P 104S modified zirconium dioxide, carbon black N330, and silicon dioxide is 3:(2-4):(0.4-1), which effectively improves the hardness and anti-washing performance of the adhesive.

[0054] (5) In the present application, the mass ratio of the control precipitated silica and chlorosulfonated polyethylene is (0.4-1):(2-4):(5.8-6.2), which effectively improves the aging resistance and anti-washing performance of the adhesive.

[0055] (6) The adhesive prepared in the present application is applied to shock-absorbing products in the automobile industry. Unlike general adhesives, the bonding of rubber and adhesive in the automotive industry is completed under the condition of high-speed heat flow of rubber, and the adhesive needs higher hardness and bonding strength. EMBODIMENT

[0056] EMBODIMENT 1

[0057] The first aspect of the present embodiment provides a special anti-washing hot vulcanization adhesive for automotive parts, which comprises, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 3%, carbon black 2%, silicon dioxide 0.8%, and solvent to make up the balance.

[0058] The solvent is xylene (CAS No.: 1330-20-7) purchased from Shandong Hongcheng Chemical Co., Ltd.

[0059] The functional rubber is chlorosulfonated polyethylene.

[0060] The Mooney viscosity (ML 100℃ 1+4) of the chlorosulfonated polyethylene is 40-50.

[0061] The chlorosulfonated polyethylene is purchased from Jinan Xuanxiang Chemical Co., Ltd., model 3304.

[0062] The special vulcanizing agent is p-dinitrosobenzene (CAS No.: 105-12-4) purchased from Hubei Xirunde Chemical Co., Ltd.

[0063] The carbon black is carbon black N330 purchased from Weifang Bolacarbon Materials Co., Ltd.

[0064] The metal oxide is BYK-P 104S modified zirconium dioxide.

[0065] The BYK-P 104S modified zirconium dioxide is prepared from the following raw materials: zirconium dioxide, xylene, and dispersant BYK-P 104S, and the preparation method comprises the following steps:

[0066] (1) 0.2 g of zirconium dioxide was dispersed in 10 ml of xylene, 0.004 g of dispersant BYK-P104S was added, the temperature was raised to 70°C, and the mixture was dispersed in a high-speed disperser for 3 h to obtain suspension A;

[0067] (2) Suspension A was dried at 105°C for 3 h to obtain BYK-P104S modified zirconium dioxide.

[0068] The average particle size of the zirconium dioxide was 50 nm.

[0069] The zirconium dioxide (CAS No. 1314-23-4) was purchased from Hangzhou Hengna New Material Co., Ltd.; the xylene (CAS No. 1330-20-7) was purchased from Shandong Hongcheng Chemical Co., Ltd.; and the BYK-P104S was purchased from Guangzhou Yinman New Material Co., Ltd.

[0070] The silica was a precipitated silica.

[0071] The mesh number of the precipitated silica was 3000 mesh.

[0072] The precipitated silica (CAS No. 10279-57-9) was purchased from Hebei Amyl Intech Chemical Technology Co., Ltd.

[0073] The second part of the example provided a preparation method of a special anti-erosion hot vulcanized adhesive for automobile accessories. A formula amount of functional rubber, metal oxide, carbon black, silica, special vulcanizing agent and solvent were mixed, and stirred at 50°C and 600 rpm for 30 min to obtain a hot vulcanized adhesive.

[0074] Example 2

[0075] The difference from Example 1 was that the raw materials included, by mass fraction, 6% of functional rubber, 6% of special vulcanizing agent, 3% of metal oxide, 2% of carbon black, 0.5% of silica, and the rest of solvent.

[0076] Example 3

[0077] The difference from Example 1 was that the raw materials included, by mass fraction, 6% of functional rubber, 6% of special vulcanizing agent, 3% of metal oxide, 4% of carbon black, 0.5% of silica, and the rest of solvent.

[0078] Example 4

[0079] The difference from Example 2 was that the functional rubber was 4% of alkylated chlorosulfonated polyethylene and 2% of chlorosulfonated polyethylene.

[0080] The alkylated chlorosulfonated polyethylene was purchased from Japan Toagosei Co., Ltd., and the model number was ET 8010.

[0081] Example 5

[0082] The difference from Example 2 is that the functional rubber is alkylated chlorosulfonated polyethylene 2%, chlorosulfonated polyethylene 4%.

[0083] The alkylated chlorosulfonated polyethylene is purchased from Japan Nippon Shokubai Co., Ltd., model ET 8010.

[0084] Example 6

[0085] The difference from Example 1 is that the raw materials include, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 1%, carbon black 2%, silicon dioxide 0.5%, and solvent to make up the balance.

[0086] Example 7

[0087] The difference from Example 1 is that the raw materials include, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 2%, carbon black 2%, silicon dioxide 0.5%, and solvent to make up the balance.

[0088] Example 8

[0089] The difference from Example 1 is that the raw materials include, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 1%, carbon black 2%, silicon dioxide 0.5%, and solvent to make up the balance.

[0090] The metal oxide is zirconium dioxide;

[0091] The zirconium dioxide (CAS No.: 1314-23-4) has an average particle size of 50 nm and is purchased from Hangzhou Hengna New Material Co., Ltd.

[0092] Example 9

[0093] The difference from Example 1 is that the raw materials include, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 2%, carbon black 2%, silicon dioxide 0.5%, and solvent to make up the balance.

[0094] The metal oxide is zirconium dioxide;

[0095] The zirconium dioxide (CAS No.: 1314-23-4) has an average particle size of 50 nm and is purchased from Hangzhou Hengna New Material Co., Ltd.

[0096] Example 10

[0097] The difference from Example 2 is that the metal oxide is zirconium dioxide;

[0098] The zirconium dioxide (CAS No.: 1314-23-4) has an average particle size of 50 nm and is purchased from Hangzhou Hengna New Material Co., Ltd.

[0099] Example 11

[0100] The difference from Example 1 is that the raw materials include, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 3%, carbon black 1%, silicon dioxide 0.5%, and solvent to make up the balance.

[0101] Example 12

[0102] The difference from Example 1 is that the raw materials include, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 3%, carbon black 1%, silicon dioxide 0.5%, and solvent to make up the balance.

[0103] The carbon black is carbon black N326, purchased from Weifang Bolacarbon Material Co., Ltd.

[0104] Example 13

[0105] The difference from Example 1 is that the raw materials include, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 3%, carbon black 2%, silicon dioxide 0.5%, and solvent to make up the balance.

[0106] The carbon black is carbon black N326, purchased from Weifang Bolacarbon Material Co., Ltd.

[0107] Example 14

[0108] The difference from Example 1 is that the raw materials include, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 3%, carbon black 4%, silicon dioxide 0.5%, and solvent to make up the balance.

[0109] The carbon black is carbon black N326, purchased from Weifang Bolacarbon Material Co., Ltd.

[0110] Example 15

[0111] The difference from Example 1 is that the raw materials include, by mass fraction: functional rubber 6%, special vulcanizing agent 6%, metal oxide 3%, carbon black 2%, silicon dioxide 0.2%, and solvent to make up the balance.

[0112] Performance test

[0113] The compression release force test is carried out according to the ASTM D 429 standard, and the tackiness rate and defect form are counted.

[0114] Using the hot vulcanized adhesive of Examples 1-15 and natural rubber, a bushing product with insert was selected, the thickness of the rubber layer between the inner tube and the insert was 2mm, the thickness of the rubber layer between the insert and the outer tube was 3mm, the vulcanization process was 170℃, 6min, and the injection time was 30s, to obtain the vulcanized product.

[0115] The natural rubber was purchased from Xingtai Langxin Rubber Products Co., Ltd.

[0116] (1) Pressure-off force

[0117] After the vulcanized product was placed in the air-conditioned room for 24h, the pressure-off experiment was carried out on the vulcanized product using a 100kN universal testing machine, the pressure-off speed was 50mm / min, the maximum force at which the rubber did not fall off was defined as the pressure-off force, and the results were recorded in Table 1.

[0118] (2) Adhesion rate

[0119] The adhesion rate refers to the percentage of rubber remaining on the bonding surface after the (1) pressure-off experiment, and the results are recorded in Table 1.

[0120] (3) Defect form

[0121] The defect position and defect form of the bonding surface after the (1) pressure-off experiment were observed, and the results were recorded in Table 1.

[0122] According to the definition of ASTM D 429 about failure:

[0123] R-rubber failure; M-adhesive and metal adhesion failure; RC-adhesive and rubber adhesion failure; CP-adhesive cohesive failure.

[0124] Table 1

[0125] Press-off force (kN) Pick-up (%) Defect position Defect form Example 1 25.6 98 Tab RC break Example 2 25.5 92 Tab RC break Example 3 24.7 97 Tab RC break Example 4 20.2 65 Tab RC / M mixed break Example 5 19.8 72 Tab RC break Example 6 18.3 55 Tab RC / M mixed break Example 7 22.2 77 Tab RC break Example 8 15.2 42 Tab RC / M mixed break Example 9 19.6 58 Tab RC / M mixed break Example 10 22.0 79 Tab RC break Example 11 21.8 80 Tab RC break Example 12 20.2 70 Tab RC break Example 13 21.7 77 Tab RC break Example 14 22.5 82 Tab RC break Example 15 23.2 80 Tab RC break

Claims

1. A heat-curing adhesive for automotive parts that is resistant to erosion, characterized in that, The raw materials include, by mass fraction: functional rubber 5-30%, special vulcanizing agent 1-10%, metal oxide 1-10%, carbon black 1-10%, silicon dioxide 0.1-10%, solvent 70-80%, and the sum of the raw materials is 100%; The functional rubber is chlorosulfonated polyethylene, and the Mooney viscosity of the chlorosulfonated polyethylene is 40-50, and the model is 3304; The mass ratio of the functional rubber to the special vulcanizing agent is (0.8-1.2):1; The mass ratio of the metal oxide, carbon black, and silicon dioxide is 3:(2-4):(0.4-1); The metal oxide is BYK-P 104 S modified zirconium dioxide; The BYK-P 104 S modified zirconium dioxide is prepared from zirconium dioxide, dimethylbenzene, and dispersant BYK-P 104 S, wherein the average particle size of the zirconium dioxide is 40-60 nm; The carbon black includes carbon black N330; The silicon dioxide is precipitated silicon dioxide; The special vulcanizing agent is p-dinitrosobenzene.

2. A process for the preparation of the special anti-abrasion hot vulcanized adhesive for automotive parts according to claim 1, characterized by, The formula amount of the functional rubber, filler, special vulcanizing agent, and solvent are mixed, and stirred at 45-55°C and 400-800 rpm for 20-40 min to obtain a hot vulcanized adhesive.