Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of EVA sole surface treating agent

A surface treatment agent and reaction solvent technology, applied in the chemical field, can solve problems such as material surface yellowing, respiratory diseases, neurological diseases, even leukemia, instability, etc., and achieve the effect of good environmental protection and significant adhesion promotion

Inactive Publication Date: 2011-09-07
NANTONG GUANGTAI BIOCHEM PROD
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The toluene solution of trichloroisocyanuric acid can have a good bonding effect after treating EVA, but it is unstable and requires temporary preparation, and it is easy to make the surface of the material turn yellow and affect the appearance.
Toluene is a moderately toxic solvent that can accumulate in the human body. Long-term exposure can lead to respiratory diseases, neurological diseases, and even leukemia, causing serious harm to the health of workers in production and use.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of EVA sole surface treating agent
  • Preparation method of EVA sole surface treating agent
  • Preparation method of EVA sole surface treating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] With 800 grams of reaction solvent (component is 120 # Solvent naphtha 10w%, ethyl acetate 40w%, methyl ethyl ketone 30w%, acetone 10w% and dimethyl carbonate 10w%) add in the reactor that has stirring and reflux device, drop into 100 grams of neoprene rubber and 20 grams of chlorine then Polyethylene was melted, stirred, and the temperature was controlled to be 60°C. After the chloroprene rubber and chlorinated polyethylene are completely dissolved, fill the reactor with nitrogen, add 30 grams of methyl methacrylate and 20 grams of vinyl acetate, and add 1 gram of benzoyl peroxide to polymerize after heating up to 80°C reaction. After 2 hours of polymerization reaction, add 5 grams of acrylic acid and 0.5 grams of benzoyl peroxide, continue the reaction for 2 hours, then turn off the nitrogen, lower the temperature to 30 ° C, then add 1 gram of 2,6-di-tert-butyl p-cresol, and stir well After discharging, the graft copolymer is obtained.

[0031] 500 grams of graft c...

Embodiment 2

[0033] With 1200 grams of reaction solvent (component is 120 # Solvent naphtha 40w%, ethyl acetate 20w%, methyl ethyl ketone 10w% and acetone 30w%) add in the reactor that has stirring and reflux device, then drop into 100 gram neoprene rubber and 40 gram chlorinated polyethylene, stir, The control temperature is 80°C. After the chloroprene rubber and chlorinated polyethylene are completely dissolved, fill the reactor with nitrogen, add 40 grams of methyl methacrylate and 30 grams of vinyl acetate, and add 1.8 grams of benzoyl peroxide to polymerize after heating up to 100°C reaction. After 3 hours of polymerization reaction, add 10 grams of acrylic acid and 0.6 grams of benzoyl peroxide, continue the reaction for 1 hour, then turn off the nitrogen, lower the temperature to 50 ° C, then add 2 grams of 2,6-di-tert-butyl p-cresol, and stir well After discharging, the graft copolymer is obtained.

[0034] 500 grams of graft copolymers are mixed with 1500 grams of dilution solv...

Embodiment 3

[0036] With 1000 grams of reaction solvent (component is 120 # Solvent naphtha 20w%, ethyl acetate 10w%, methyl ethyl ketone 40w%, acetone 20w% and dimethyl carbonate 10w%) add in the reactor with stirring and reflux device, then drop into 100 grams of neoprene rubber and 30 grams of chlorine Melt polyethylene, stir, and control the temperature to 70°C. After the chloroprene rubber and chlorinated polyethylene are completely dissolved, fill the reactor with nitrogen, add 30 grams of methyl methacrylate and 40 grams of vinyl acetate, and add 1.4 grams of benzoyl peroxide to polymerize after raising the temperature to 90°C reaction. After 2.5 hours of polymerization reaction, add 8 grams of acrylic acid and 0.7 grams of benzoyl peroxide, continue the reaction for 1.5 hours, then turn off the nitrogen, lower the temperature to 40°C, then add 1.5 grams of 2,6-di-tert-butyl-p-cresol, and stir well After discharging, the graft copolymer is obtained.

[0037] 500 grams of graft co...

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of an EVA sole surface treating agent. The existing products contain a great deal of toluene and are toxic. The preparation method comprises the following steps: firstly, adding chloroprene rubber and chlorinated polyethylene in reaction solvent containing 120# solvent oil, ethyl acetate, butanone and acetone, stirring for complete dissolution, injecting nitrogen, adding methylmethacrylate and vinyl acetate, heating to 80-100 DEG C, adding benzoyl peroxide to perform polymerization reaction for 2-3 hours, adding acrylic acid, replenishing benzoyl peroxide, reacting for 1-2 hours, stopping injecting nitrogen, reducing the temperature to 30-50 DEG C, then adding 2,6-di-tert-butyl-p-cresol, stirring evenly, discharging to obtain graft copolymer; and mixing graft copolymer with diluting solvent in a weight ratio of 1:1.5-3, and stirring evenly to obtain the EVA sole surface treating agent. The EVA sole surface treating agent prepared by the method of the invention has good environmental performance, and the EVA sole processed by the treating agent has obvious adhesion promoting function.

Description

technical field [0001] The invention belongs to the technical field of chemistry, and relates to a preparation method of a surface treatment agent, in particular to a preparation method of an EVA shoe sole surface treatment agent for improving bonding strength. Background technique [0002] With the rapid development of the footwear industry, EVA (ethylene-vinyl acetate copolymer) foaming materials are widely used as sole materials due to their light weight, beautiful appearance and low price, especially the soles of beach slippers are all made of EVA. . Since EVA is a weakly polar material, the affinity between neoprene adhesives and polyurethane adhesives with strong polarity is not strong, which brings difficulties to the bonding of EVA materials. In order to improve the bonding strength of EVA soles, In the footwear industry, surface treatment agents are generally used to treat the surface of EVA before bonding. The material surface treatment agent can be regarded as a...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L51/04C08L51/06C08F291/04C08F220/14C08F218/08C08F220/06A43B13/04
Inventor 聂秋林
Owner NANTONG GUANGTAI BIOCHEM PROD