Hot melt adhesive film for rubber and metal adhesion and preparation method of hot melt adhesive film

A hot-melt adhesive film, rubber metal technology, applied in adhesives, polymer adhesive additives, film/sheet adhesives, etc., can solve the problem of difficult breakthroughs in material bonding, complex processes, liquid adhesive solvents, etc. Solve problems such as volatility and toxicity, achieve good bonding strength, simple preparation process, and strong bonding effect

Active Publication Date: 2016-03-23
GUANGZHOU LUSHAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of these traditional methods are relatively complicated in process and require pre-treatment processes such as grinding. Liquid adhesives often have the problem of solvent volatilization and toxicity.
[0003] The process of hot-melt adhesive film is simple and non-toxic, but it is not a new concept. It has been used in some traditional fields because of the bonding technology. It is always difficult to break through the bonding of specific materials, such as the bonding of rubber and metal.

Method used

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  • Hot melt adhesive film for rubber and metal adhesion and preparation method of hot melt adhesive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1, get 100 parts by mass of EVA resin, wherein the melting point of EVA resin is 50°C, the melt index is 40g / 10min, add 0.01 parts by mass of 2,5-dimethyl-2,5-bis(tert-butyl peroxide Base) hexane and 5 mass parts number average molecular weight are 4500, maleic anhydride content is the polybutadiene of maleic anhydride modification of 3%, at 190 ℃ with twin-screw extrusion grafting and granulation oven dry; Step 2: Weigh 100 parts by mass of the particles produced in Step 1, add 0.5 parts by mass of DTDM and mix evenly, and prepare a film with a thickness of 0.3 mm by casting method. The specific test results are shown in Table 1.

Embodiment 2

[0030] Step 1, take 100 parts by mass of POE resin, wherein the melting point of POE resin is 60°C, the melt index is 15g / 10min, add 0.2 parts by mass of 2,5-dimethyl-2,5-bis(tert-butyl peroxide Base) hexane and 5 mass parts number average molecular weight are 7500, maleic anhydride content is the polybutadiene of maleic anhydride modification of 20%, at 190 ℃ with twin-screw extrusion grafting and granulation oven dry; Step 2: Weigh 100 parts by mass of the particles produced in Step 1, add 5 parts by mass of TMTD and mix evenly, and prepare a film with a thickness of 0.3 mm by casting method. The specific test results are shown in Table 1.

Embodiment 3

[0032] Step 1, get 100 parts by mass of EVA resin, wherein the melting point of EVA resin is 105 ° C, the melt index is 2g / 10min, add 0.05 parts by mass of dicumyl peroxide and 0.5 parts by mass of the number average molecular weight is 9900, Malay The acid anhydride content is the maleic anhydride modified polybutadiene of 6%, under 190 ℃, use twin-screw extrusion grafting and granulation drying; Step 2, weigh 100 mass parts step 1 made particles, add 0.5 Parts by mass of DTDM were uniformly mixed, and a film with a thickness of 0.3 mm was prepared by a casting method. The specific test results are shown in Table 1.

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Abstract

The invention relates to a hot melt adhesive film for rubber and metal adhesion. The hot melt adhesive film is used for rubber and metal adhesion, causes no release of a solvent in the production process, is simple in preparation technology and can replace a frequently-used liquid adhesive or complicated metal surface pretreatment process. The production process of the hot melt adhesive film for rubber and metal adhesion comprises the following two steps: (1) taking EVA or POE resin as a matrix, melt-grafting maleic anhydride modified polybutadiene, and carrying out pelleting and drying to obtain hot melt adhesive particles; (2) uniformly mixing the hot melt adhesive particles with a sulfur carrier, and preparing the hot melt adhesive film of appropriate thickness. By grafting maleic anhydride, the hot melt adhesive film has an excellent adhesive force with metals; meanwhile, the sulfur carrier releases sulfur at high temperature to co-vulcanize added butadiene segments and rubber, so that the hot melt adhesive film also maintains a favorable adhesive force with rubber.

Description

technical field [0001] The invention belongs to the technical field of hot-melt adhesives, and in particular relates to a rubber-metal bonding hot-melt adhesive film. Background technique [0002] Metal-rubber bonding is required in many industrial fields, such as the bonding of tracked armored vehicle road wheels, track pads and track bushings in mechanical engineering, construction, ships, and military industries. Due to the large polarity difference between rubber and metal, a layer of adhesive is needed to bond well. Traditional methods include hard rubber method, brass or brass plating method, resorcinol formaldehyde system, phenolic resin method, polyisocyanate method, halogenated rubber method, halogenated polymer method containing special vulcanizing agent, and water-based adhesive method. Most of these traditional methods have complicated processes and require pre-treatment processes such as grinding, and liquid adhesives often have the problem of solvent volatiliz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J11/08C09J11/06C09J7/00
CPCC09J7/00C09J11/06C09J11/08C09J123/0815C09J123/0853C09J2301/304C09J2423/048C08L51/003C08K5/14
Inventor 李伟博余鹏唐舫成汪加胜
Owner GUANGZHOU LUSHAN NEW MATERIALS
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