Preparation method of environment-friendly polymeric isocyanate glue

A polyisocyanate glue, polyisocyanate technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve the problems of water and soil and air pollution, working environment hazards, etc., and achieve stable performance, Versatile and strong bond strength
CN101709209AActive Publication Date: 2010-05-19LIAONING HONGSHAN CHEM
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
LIAONING HONGSHAN CHEM
Publication Date
2010-05-19

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Abstract

The invention discloses a preparation method of environment-friendly polymeric isocyanate glue, which comprises the steps of photochemical reaction, high temperature scavenging and reduced pressure distillation. On the premise of not influencing product quality, ethyl acetate is selected as an organic solvent component, and the produced environment-friendly polymeric isocyanate glue can not only enhance the environmental protection performance of products, but also greatly improve the bond strength of the products.
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Description

technical field

[0001] The invention relates to a preparation method of an environment-friendly polyisocyanate glue. Background technique

[0002] Polyisocyanate glue, commonly known as Triphenylmethane triisocyanate, is mainly used for bonding rubber to metal, rubber to rubber, rubber to some non-metals, and some non-metals to non-metals. Do textile auxiliaries. The product synthesis process is: triaminotriphenylmethane (C 19 h 19 N 3 ) is dissolved in organic solvents such as carbon tetrachloride, dichloromethane, benzene, chlorinated benzene, etc., and phosgene is introduced into the mixed solution to carry out photochemical reaction. The content of polyisocyanate in the product is 20%, and that of carbon tetrachloride, methylene chloride, benzene and organic solvent is 80%. The polyisocyanate glue produced by this process, because it contains toxic solvents, will cause serious pollution to the environment during use, and will also cause great harm to users. Organic...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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