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Heat-cured high-intensity flaky adhesive for automobile and preparation method thereof

A high-strength, heat-curing technology, used in film/sheet-like adhesives, adhesives, epoxy resins, etc., can solve problems such as noise and resonance, reduced body stiffness, and easy injury to occupants. Noise reduction and good adhesion performance

Active Publication Date: 2011-09-14
三友(天津)高分子技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In order to save energy, the weight of automobiles needs to be reduced. One of the methods is to reduce the thickness of steel plates used for manufacturing. Parts such as the perimeter are prone to noise and resonance during driving. When an accidental collision occurs, the impact energy absorption becomes smaller and the occupants are likely to be injured.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 (high-strength glue components by weight percentage): 20% nitrile rubber; 11% dioctyl phthalate; 25% bisphenol A diglycidyl ether E51; 10% polyvinyl chloride paste resin P440; 4.5% terpene resin; 3.3% dicyandiamide; 2% sulfur; 0.6% accelerator DM; 0.3% accelerator TMTD; 0.1% antioxidant RD; 3.0% furnace carbon black; 20.2% SPT nano calcium carbonate.

[0020] After the nitrile rubber in the above-mentioned embodiment 1 is masticated and kneaded with an open mill, mix it with dioctyl phthalate, bisphenol A diglycidyl ether E51, terpene resin, antioxidant RD according to the proportioning ratio. , furnace carbon black and the 50% SPT nano-calcium carbonate of proportioning are mixed evenly, and on the three-roller machine that speed ratio is 1:3:9, uniform paste is made; The polyvinyl chloride paste resin in the above-mentioned embodiment 1 , dicyandiamide, sulfur, accelerator DM, accelerator TMTD and the ratio of 50% SPT nano-calcium carbonate are mixed with...

Embodiment 2

[0021] Embodiment 2 (high-strength glue components by weight percentage): 15% nitrile rubber; 10% liquid nitrile rubber; 8% dibutyl phthalate; 2% dioctyl adipate; 22% bisphenol A Diglycidyl ether E44; 6% vinyl chloride-vinyl acetate copolymer paste resin; 3.5% petroleum resin; 1.0% dicyandiamide; 2.0% sulfur; 1.2% accelerator M; Black; 25.8% SPT nano calcium carbonate.

[0022] After the acrylonitrile-butadiene rubber in the above-mentioned embodiment 2 is masticated and mixed with an open mill, according to the proportioning, it is mixed with liquid acrylonitrile-butadiene rubber, dibutyl phthalate, dioctyl adipate, bisphenol A two Glycidyl ether E44, petroleum resin, anti-aging agent 246, channel carbon black and 50% SPT nano-calcium carbonate are mixed evenly, and a uniform paste is made on a three-roll machine with a speed ratio of 1:3:9; Mix the vinyl chloride-vinyl acetate copolymer paste resin, dicyandiamide, sulfur, accelerator M and proportioning 50% SPT nano-calcium...

Embodiment 3

[0023] Embodiment 3 (high-strength glue component by weight percentage): 11% nitrile rubber; 11% carboxyl-terminated liquid nitrile rubber; 5% dioctyl phthalate; 5% dioctyl sebacate; 11.5% Bisphenol A diglycidyl ether E51; 10.5% novolac epoxy F51; 6% polyvinyl chloride paste resin P440; 3.8% terpene resin; 1.0% sebacic acid dihydrazide; 2.5% sulfur; 1.3% accelerator CZ; 0.5% anti-aging agent RD; 3.5% furnace carbon black; 27.4% SPT nano calcium carbonate.

[0024] After the acrylonitrile-butadiene rubber in the above-mentioned embodiment 3 is masticated and kneaded with an open mill, it is mixed with carboxyl-terminated liquid acrylonitrile-butadiene rubber, dioctyl phthalate, dioctyl sebacate, bisphenol A Diglycidyl ether E51, phenolic epoxy F51, terpene resin, anti-aging agent RD, furnace carbon black and 50% SPT nano-calcium carbonate are mixed evenly on a three-roll machine with a speed ratio of 1:3:9 Make uniform paste; Polyvinyl chloride paste resin, sebacic acid dihydr...

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Abstract

The invention provides a heat-cured high-intensity flaky adhesive for an automobile and a preparation method thereof. The heat-cured high-intensity flaky adhesive for the automobile comprises three layers, wherein the upper layer is made of glass fiber cloth, the middle layer is made of a high-intensity adhesive, and the bottom layer is made of barrier paper. The high-intensity adhesive is prepared from synthetic rubber, a plasticizer, epoxy resin, thermoplastic resin, tackifying resin, a curing agent, a vulcanizing agent, an accelerating agent, an anti-aging agent and calcium carbonate. Due to the adoption of the flaky adhesive, the rigidity of a metal sheet can be increased greatly in the automobile manufacturing process, the running noise of the automobile can be reduced, and the comfort and the safety of the automobile are ensured. The heat-cured high-intensity flaky adhesive has high adhesion to an oil surface metal material, can be operated manually and directly in the construction process, is non-sticky, nontoxic and tasteless, has high manufacturability, is prevented from moving, and is convenient to use. The flaky adhesive can be cut according to different requirements onpositions, sizes and shapes and can be stored for over 3 months at the temperature of 25 DEG C.

Description

technical field [0001] The invention relates to an adhesive material, in particular to a thermosetting high-strength sheet-like adhesive for automobiles and a preparation method thereof. Background technique [0002] In order to save energy, the weight of automobiles needs to be reduced. One of the methods is to reduce the thickness of steel plates used for manufacturing. Parts such as the perimeter are prone to noise and resonance during driving. When an accidental collision occurs, the impact energy absorption becomes smaller, and it is easy to injure the occupants. In order to reduce the weight of the car without reducing the rigidity of the car body to ensure the safety of the occupants, it is necessary to research and develop a low-specific-gravity high-strength sheet glue, which can be used to bond the steel plate at the stress concentration of the car body to improve the strength of the steel plate. Excellent bending strength, rigidity, impact resistance, improve the...

Claims

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Application Information

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IPC IPC(8): C09J7/04C09J163/00C09J163/02C09J163/04C09J109/02C09J113/00C09J127/06C09J11/04
Inventor 高之香李建武李士学王永明梁玉才吴子刚郭亚昆张卫军朱兴明
Owner 三友(天津)高分子技术有限公司
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