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A kind of eva shoe material treatment agent

A technology for treating agent and shoe material, applied in the direction of surface pretreatment bonding method, adhesive, coating, etc., can solve the problems such as failure to achieve material damage, failure to form effective bonding, failure to achieve peeling force, etc. Wide range, good aging resistance and hydrolysis resistance, good adhesion effect

Active Publication Date: 2018-10-23
珠海市泽涛粘合制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For injection EVA, secondary molded EVA, or materials blended with lower polarity polyolefins, it cannot form an effective bond (cannot achieve village material failure or peel force cannot reach 3N / mm), or can only be used for Glue the unimportant parts of the shoe
The third type of UV-curing treatment agent above needs to use UV-curing equipment or assembly lines during use. For small businesses, more capital and manpower are required, and ozone emissions and heat emissions will be generated during the UV irradiation process.
In addition, due to the huge heat energy generated during the irradiation process, some materials with low foam density may shrink and deform and cannot be used.

Method used

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  • A kind of eva shoe material treatment agent
  • A kind of eva shoe material treatment agent
  • A kind of eva shoe material treatment agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An embodiment of the preparation method of the modified polymer of the present invention, the modified polymer described in this embodiment is prepared by the following method:

[0037] (1) EVA resin is dissolved in the solvent, and adding alkaline reagent makes EVA resin carry out saponification reaction under alkaline condition, and saponification reaction temperature is 80 ℃, and the reaction time is 2 hours, obtains the EVA resin of partial saponification;

[0038] Wherein, VAc content is 18% in the EVA resin; The solvent of saponification reaction is the mixed system of methylcyclohexane, butanone, n-butyl acetate; Alkaline reagent is the mixed solution of NaOH and ethanol, and in the mixed solution The concentration of NaOH was 0.5 mol / L; the saponification rate of the obtained partially saponified EVA resin was 40%.

[0039] (2) Carry out esterification reaction with the partially saponified EVA resin obtained in step (1) and methyl hexahydrophthalic anhydride, t...

Embodiment 2

[0043] An embodiment of the preparation method of the modified polymer of the present invention, the modified polymer described in this embodiment is prepared by the following method:

[0044] (1) EVA resin is dissolved in the solvent, and adding alkaline reagent makes EVA resin carry out saponification reaction under alkaline condition, saponification reaction temperature is 60 ℃, and the reaction time is 4 hours, obtains the EVA resin of partial saponification;

[0045] Wherein, VAc content is 15% in the EVA resin; The solvent of saponification reaction is the mixed system of methylcyclohexane, butanone, n-butyl acetate; Alkaline reagent is the mixed solution of NaOH and ethanol, and in the mixed solution The concentration of NaOH was 0.1 mol / L; the saponification rate of the obtained partially saponified EVA resin was 15%.

[0046] (2) carry out esterification reaction with the partially saponified EVA resin obtained in the step (1) and maleic anhydride, the esterification ...

Embodiment 3

[0050] An embodiment of the preparation method of the modified polymer of the present invention, the modified polymer described in this embodiment is prepared by the following method:

[0051] (1) EVA resin is dissolved in the solvent, and adding alkaline reagent makes EVA resin carry out saponification reaction under alkaline condition, saponification reaction temperature is 95 ℃, and the reaction time is 0.5 hour, obtains the EVA resin of partial saponification;

[0052] Wherein, VAc content is 30% in the EVA resin; The solvent of saponification reaction is the mixed system of methylcyclohexane, butanone, n-butyl acetate; Alkaline reagent is the mixed solution of NaOH and ethanol, and in the mixed solution The concentration of NaOH was 1 mol / L; the saponification rate of the obtained partially saponified EVA resin was 50%.

[0053] (2) Carry out esterification reaction with the partially saponified EVA resin obtained in step (1) and hexahydrophthalic anhydride, the esterific...

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Abstract

The invention discloses a modified polymer. A molecular main chain of the polymer has a low-polarity structure similar with EVA (Ethylene / Vinyl Acetate) resin; reactive polar groups including hydroxyl and carboxyl are introduced on a molecular side chain. Meanwhile, the invention discloses a preparation method of the modified polymer; in a preparation process, different types of acid anhydrides are selected through adjusting a saponification condition and an esterification condition, so that free adjustment of the polarity of the modified polymer can be realized. The invention further discloses an EVA shoe material treatment agent comprising the modified polymer; the selectivity of the treatment agent on a solvent is great and the treatment agent has universality on different shoe making materials; meanwhile, the treatment agent also has the advantages of good adhering effect, good anti-ageing and anti-hydrolysis performances, good compatibility and good permeability on materials and the like.

Description

technical field [0001] The invention relates to a shoe material treatment agent, in particular to an EVA shoe material treatment agent. Background technique [0002] EVA (ethylene-vinyl acetate copolymer) materials for shoemaking, to meet the various performance requirements of shoes, especially sports shoes, usually have a high content of ethylene, and may need to be blended with various polymers with better resilience and flexibility. Olefins (such as polyoctene, etc.), and due to various lubricants, plasticizers, release agents, inorganic fillers, etc. added during the material processing, the surface polarity of the material is very low, and the current shoe industry generally uses polyurethane Adhesives, due to the relatively high polarity of polyurethane adhesives, according to the principle of similar compatibility, such as directly applying glue on the surface of EVA, it is difficult to form an effective bond that meets the requirements of shoemaking (shoemaking requ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F8/14C08F8/12C08F210/02C08F218/08C09J5/02C08J7/04C08L23/08
CPCC08F8/12C08F8/14C08F2810/50C08J7/0427C08J2323/08C08J2423/08C09J5/02C09J2423/046C09J2423/048C08F210/02
Inventor 永井幸弘
Owner 珠海市泽涛粘合制品有限公司