Neoprene adhesive and preparation method thereof

Abstract

The invention discloses a neoprene adhesive. The neoprene adhesive is prepared from the following raw materials in part by weight: 100 to 120 parts of chlorophenythylene, 100 to 150 parts of ethyl acetate, 20 to 25 parts of neoprene CR121, 15 to 20 parts of dimethylbenzene, 1 to 2 parts of 4,4'-diphenyl methane diisocyanate, 8 to 12 parts of polyisobutene, 2 to 3 parts of 3-aminopropyl trimethoxy silane, 2 to 3 parts of polytetrahydrofuran ether glycol, 3 to 5 parts of SG-2 type polyvinyl chloride (PVC) resin, 1 to 2 parts of ferrocene, 10 to 15 parts of epichlorohydrin rubber H45, 8 to 12 parts of polyvinyl alcohol and the like. The neoprene adhesive has the advantages of excellent heat resistance and cold tolerance, high bonding strength, water tolerance, moisture tolerance, high storage stability, high environmental friendliness and good using effect, convenience and wide application range, is suitable for adhesion of artificial leather, synthetic leather, plastic, nylon and organic glass and is also suitable for the shoe-making industry.

Description

technical field [0001] The invention relates to a chloroprene rubber adhesive and a preparation method thereof, belonging to the technical field of chemical industry. Background technique [0002] Neoprene is a synthetic rubber compound that is produced in large quantities to make adhesives for a wide range of applications. The structure of chloroprene rubber is relatively regular, and there are chlorine atoms with high polarity, so it has high crystallinity. It has good bonding performance and large cohesive strength at room temperature, and is very suitable as an adhesive. The characteristics of the adhesive are: large initial adhesion, high bonding strength, good durability, flexible adhesive layer, good elasticity, impact and vibration resistance, good oil resistance, water resistance, alkali resistance, acid resistance, and solvent resistance. The materials have good adhesion, easy to use, and low price, but poor heat resistance, poor cold resistance, and poor storage ...

AI Technical Summary

Problems solved by technology

The structure of chloroprene rubber is relatively regular, and there are chlorine atoms with high polarity, so it has high crystallinity. It has good bonding performance and large cohesive strength at room temperature, and is very suitable as an adhesive. The characteristics of the adhesive are: large initial adhesion, high bonding strength, good durability, flexible adhesive layer, good elasticity, impact and vibration resistance, good oil resistance, water resistance, alkali resistance, acid resistance, and solvent resistance. The materials have good adhesion, easy to use, and low price, but poor heat resistance, poor cold resistance, and poor storage stability

In order to overcome the shortcomings of traditional neoprene adhesives such as poor heat resistance, poor cold resistance, poor storage stability, and high toxicity, a new type of neoprene adhesive is produced by improving the formula.

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