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Environment-friendly (methyl) acrylate modified rubber type adhesive and preparation process thereof

A technology of acrylate and modified rubber, which is applied in other rubber adhesives, natural rubber adhesives, adhesive additives, etc., and can solve problems such as poor dispersion, high cross-linking density, and accelerated decrease in adhesive strength. Achieve the effect of simple bonding process, high bonding strength and high bonding strength

Active Publication Date: 2013-09-11
江苏矽时代材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is that the dispersion in the rubber is not good. If the local content is too large, the formation rate of cuprous sulfide will be accelerated, and the degree of resinization reaction is too deep and the crosslinking density is too large, which will affect the adhesive performance of the rubber
The second is that cobalt salt is a pro-oxidant, which will promote aging and accelerate the degradation of the cuprous sulfide layer, resulting in a decrease in adhesive strength
Third, the price of cobalt salt is relatively high, and the price is very unstable
[0006] In recent years, metal salts of acrylic acid or methacrylic acid have been used as rubber-metal adhesion promoters. This additive is a direct adhesive tackifier, which is easy to use, but the adhesion performance still needs to be improved.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] ① Mix 100kg of natural rubber with 15kg of zinc oxide and 2kg of dicumyl peroxide through a double-roller mill;

[0029] ② Process the above compounded rubber into granular or other shapes, and then mix it with 35kg of acrylic acid evenly;

[0030] ③Place the above materials in a closed container and park at 40-100°C for 24 hours until the reaction between acrylic acid and zinc oxide is complete;

[0031] ④ Dry the above materials (40-100°C, 12-48 hours) or vacuum dry (40-100°C, 2-12 hours), remove and recycle the acrylic acid that may remain in the compound;

[0032] ⑤ The above materials are further mixed evenly on a double-roll mill, and processed into flakes, granules, strips, etc., which can be used for direct vulcanization and bonding of rubber and metal.

[0033] ⑥ Mix 100kg of the above materials with 30kg of toluene, 125 kg of ethyl acetate, 120 # Stir the mixed solvent consisting of 125 kg of gasoline, mix evenly, and make a glue, which can be used for gluin...

Embodiment 2

[0036] ① Mix 100kg of natural rubber with 15kg of zinc oxide and 2kg of dicumyl peroxide evenly through a double-roll mill, internal mixer, screw extruder and other equipment;

[0037] ② Then add 40kg of acrylic acid to the above-mentioned materials on the equipment such as an open mill and mix evenly, and process the above-mentioned mixed rubber into granules, strips or other small-sized shapes;

[0038] ③Place the above materials in a closed container and park at 40-100°C for 24 hours until the reaction between acrylic acid and zinc oxide is complete;

[0039] ④ Dry the above materials (40-100°C, 12-48 hours) or vacuum dry (40-100°C, 2-12 hours), remove and recycle the acrylic acid that may remain in the compound;

[0040] ⑤ The above materials are further mixed evenly on a double-roll mill, and processed into flakes, granules, strips, etc., which can be used for direct vulcanization and bonding of rubber and metal.

[0041] ⑥ Mix 100kg of the above materials with 30kg of t...

Embodiment 3

[0044] ①Mix 100kg of natural rubber with 15kg of zinc oxide and 2kg of dicumyl peroxide evenly through equipment such as a double-roll mill, internal mixer, screw extruder, etc., and process the above-mentioned mixed rubber into granules , strips or other small-sized shapes;

[0045] ②Stir 100kg of the above materials with 45kg of acrylic acid, 30kg of toluene, 125 kg of ethyl acetate, and 125 kg of 120# gasoline until dissolved;

[0046] ③Place the above materials in a closed container and stir at 40-100°C for 24 hours until the reaction between acrylic acid and zinc oxide is complete; it can be used for gluing on metal surfaces, and then vulcanized and bonded with rubber.

[0047] The mucilage-type adhesive prepared in this example is used for bonding natural rubber to untreated aluminum, 45# steel, and stainless steel, and the failure mode is natural rubber body failure.

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PUM

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Abstract

The invention relates to a preparation process and material composition of an environment-friendly (methyl) acrylate modified rubber type adhesive. A novel rubber-metal adhesive is prepared by carrying out reaction modification on high-molecule materials, such as natural rubber and the like, under the action of initiating agents, such as a hyperoxide and the like, by unsaturated carboxylic acid, such as acrylic acid and the like, or other polymerized monomers with second functional groups and substances, such as a metal oxide and the like which can be reacted with the polymerization monomers. The acrylate modified rubber type adhesive prepared through the process disclosed by the invention has the advantages of high adhesive strength, wide adhesive range, easiness and convenience for an adhesive process, no pollution of preparation and usage, and the like.

Description

[0001] technical field [0002] The invention relates to a preparation process and material composition of an environment-friendly (meth)acrylate modified rubber-type adhesive. Background technique [0003] Rubber and metal bonding can combine the high elasticity of rubber and the high modulus of metal; high-performance rubber-metal composites can be used in vehicles, ships, machinery manufacturing and aerospace fields. [0004] For traditional rubber-metal composite products such as rubber shock absorbers and skeleton seals, indirect bonding is often used for bonding metal parts and rubber. However, this method has the disadvantages of complex production process, low efficiency, serious environmental pollution, and unstable bonding strength. [0005] The direct vulcanization bonding process can partly avoid the above shortcomings, such as the bonding system widely used in radial tire belt compounds---resorcinol / methylene donor / silica system, and cobalt salt. However, reso...

Claims

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Application Information

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IPC IPC(8): C09J107/00C09J121/00C09J11/08C09J11/06C08J5/12
Inventor 翟俊学张萍赵树高杨文君李军鸽杨磊
Owner 江苏矽时代材料科技有限公司
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