Urea-formaldehyde resin-chloroprene rubber adhesive and preparation method thereof

Abstract

The invention discloses a urea-formaldehyde resin-chloroprene rubber adhesive. The adhesive comprises the following raw materials in parts by weight: 100-120 parts of styrene, 100-150 parts of ethyl acetate, 20-25 parts of chloroprene rubber CR121, 15-20 parts of dimethyl benzene, 1-2 parts of 4, 4'-diphenylmethane diisocyanate, 8-12 parts of polyisobutylene, 2-3 parts of 3-aminopropyltrimethoxysilane, 2-3 parts of polyoxytertramethylene glycol, 15-20 of urea-formaldehyde resin, 1-2 of ferrocene, 5-10 parts of butyl rubber CBK139, 2-4 parts of epoxy n-butyl Oleate and the like. The adhesive has the advantages of excellent heat resistance, water resistance, high adhesive strength, moisture proofness, good storage stability, good environment friendliness, good use effect, convenience and wide application scope; and the adhesive is suitable for adhering artificial leather, synthetic leather, plastics, nylon and organic glass and shoemaking industry.

Description

technical field [0001] The invention relates to a urea-formaldehyde resin-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 high cohesive strength at room temperature, and is very suitable as an adhesive. The characteristics of neoprene 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. , has good adhesion to a variety of materials, easy to use, and low price, but poor heat resistance,...

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 high cohesive strength at room temperature, and is very suitable as an adhesive. The characteristics of neoprene 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. , has good adhesion to a variety of materials, easy to use, low price, but poor heat resistance, poor water resistance, poor storage stability

In order to overcome the disadvantages of traditional chloroprene adhesives such as poor heat resistance, poor water resistance, poor storage stability, and high toxicity, a new type of urea-aldehyde resin was produced by improving the formula and adding other raw materials such as urea-aldehyde resin. - Neoprene adhesive

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