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Method for preparing environment-friendly water-based neoprene adhesive

A production method and technology of neoprene, applied in the direction of chloroprene adhesives, adhesives, adhesive types, etc., can solve problems such as unstable adhesive performance, heavy pungent odor, and poisonous operators, and achieve Low price, high initial bonding strength, fast curing effect

Inactive Publication Date: 2014-06-25
XINYANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Initially, the solvent used in neoprene was benzene, which had excellent solubility, and the performance of the adhesive was easier to control, but the toxicity of benzene was quite high, and toluene was used as the solvent after many accidents of poisoning and death among operating users.
Although the toxicity of toluene is much smaller than that of benzene, it can still seriously poison the operator and pollute the environment if the measures are not taken properly.
In the 1980s, there was a research on replacing most or all of toluene with mixed solvents such as gasoline and ethyl ester, but due to the increase in cost, unstable adhesive performance, and strong pungent smell, people are unwilling to use it.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] First, add 300mL ethyl acetate, 200mL No. 120 solvent oil, 500mL dimethyl carbonate, 100g C9 resin, 300g neoprene, and 50g dioctyl to a 1500mL three-necked flask to obtain a mixture;

[0022] Secondly, the above mixture was mechanically stirred and dispersed at high speed for 5 hours to obtain a light yellow, translucent viscous liquid (component A);

[0023] Again, add 1000mL of deionized water, 20g of anionic cellulose sodium salt, 15g of dextrin, 5g of neoprene special emulsifier, 5g of defoamer, and 5g of anti-aging agent in a 1500mL three-necked flask, and install a reflux condenser. get the mixture;

[0024] Again, the above mixture was mechanically stirred, heated to 80°C, and dispersed at high speed for 5 hours to obtain a milky white viscous liquid (component B);

[0025] Finally, take 300 parts of component A and 300 parts of component B into a 1000mL three-necked flask, install a reflux condenser, mechanically stir, heat to 50°C, and disperse at high speed f...

Embodiment 2

[0027] First, add 1000mL deionized water, 20g anionic cellulose sodium salt, 15g dextrin, 5g neoprene special emulsifier, 5g defoamer, 5g anti-aging agent in a 1500mL three-necked flask, and install a reflux condenser. get the mixture;

[0028] Next, mechanically stir the above mixture, heat to 80°C, and disperse at high speed for 5 hours to obtain a milky white viscous liquid (component B);

[0029] Again, 300mL ethyl acetate, 200mL No. 120 solvent naphtha, 500mL dimethyl carbonate, 100g C9 resin, 300g chloroprene rubber, and 50g dioctyl ester were successively added to a 1500mL three-necked flask to obtain a mixture;

[0030] Again, mechanically stir the above mixture, and disperse at high speed for 5 hours to obtain a light yellow, translucent viscous liquid (component A);

[0031] Finally, take 300 parts of component A and 300 parts of component B into a 1000mL three-necked flask, install a reflux condenser, mechanically stir, heat to 50°C, and disperse at high speed for ...

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PUM

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Abstract

The invention discloses a method for preparing an adhesive, in particular a method for preparing an environment-friendly water-based neoprene adhesive. The method is characterized by comprising the following three steps of: a, preparing neoprene latex (component A); b, preparing a water-phase dispersing system (component B); and c, preparing the water-based neoprene adhesive. The water-based neoprene adhesive prepared by the method has the advantages of environmental friendliness, high stability, low cost and the like. The water-based neoprene adhesive provided by the invention can be widely applied to the industries such as shoemaking industry, furniture industry, handbag industry and the like.

Description

technical field [0001] The invention relates to a method for making an adhesive, in particular to a method for making an environmentally friendly water-based neoprene adhesive. Background technique [0002] Neoprene was the first synthetic rubber compound to be mass-produced. Neoprene is polymerized from chloroprene monomer, commonly known as all-purpose glue, and is a traditional bulk adhesive in mainland China. This adhesive has a wide range of applications, has the characteristics of high initial adhesion and high bonding strength, and is mainly used for home and public use. Decoration of facilities, wood industry, shoe industry and other industries. [0003] Initially, the solvent used in neoprene was benzene, which had excellent solubility and the performance of the adhesive was easier to control, but the toxicity of benzene was quite high, and toluene was used as the solvent after several accidents of poisoning and death among operating users occurred. Although the t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J111/00C09J157/02
Inventor 裴强张升喜金春雪陈豪
Owner XINYANG NORMAL UNIVERSITY
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