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Emulsion of water-based primer for EVA materials

A treatment agent, water-based technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of harming the health of production personnel, unsatisfactory EVA bonding effect, waste of resources, etc., and is beneficial to environmental protection and the use of production personnel. Healthy, easy-to-control, easy-to-use effects

Active Publication Date: 2013-01-09
东莞智炜新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its polyethylene-vinyl acetate structure, most shoe adhesives are not ideal for EVA bonding, and the surface needs to be treated with a treatment agent
And the existing EVA treatment agents, no matter UV curing or UV-free curing, are all solvent-based treatment agents containing toxic solvents such as benzene and ketones. When curing, a large amount of solvents evaporate into the working environment and the atmosphere, which not only wastes a lot of resources, Moreover, it causes serious pollution to the environment and endangers the health of production personnel.

Method used

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Examples

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Effect test

Embodiment 1

[0043] Embodiment 1: a kind of EVA material aqueous treatment agent emulsion that the embodiment of the present invention provides, it is made by the raw material of following weight part:

[0044] 690 parts of hydroxyl-terminated polybutadiene (Mn=2000),

[0045] 32 parts of 2,2-dimethylolacetic acid,

[0046] 135 parts of 1,6-hexamethylene diisocyanate,

[0047] 0.1 part of dibutyltin dilaurate,

[0048] 350 parts of acetone,

[0049] 9 parts of triethylamine,

[0050] 900 parts of deionized water,

[0051] 25 parts of ethylenediamine.

[0052]The preparation method of described EVA material aqueous treatment agent emulsion, comprises the following steps:

[0053] (1) Prepare raw materials: the mass parts of raw materials and their components are as follows:

[0054] 690 parts of hydroxyl-terminated polybutadiene (Mn=2000),

[0055] 32 parts of 2,2-dimethylolacetic acid,

[0056] 135 parts of 1,6-hexamethylene diisocyanate,

[0057] 0.1 part of dibutyltin dilaurate...

Embodiment 2

[0071] Embodiment 2: EVA material aqueous treatment agent emulsion provided by the present invention and preparation method are basically the same as embodiment 1, and its difference is:

[0072] The mass parts of raw material and each component thereof are as follows:

[0073] 650 parts of hydroxyl-terminated chlorinated polyethylene (Mn=1000),

[0074] 35 parts of 2,2-dimethylolacetic acid,

[0075] 150 parts of 1,6-hexamethylene diisocyanate,

[0076] Stannous octoate 0.07 parts,

[0077] Benzene 380 parts,

[0078] 7 parts of triethylamine,

[0079] 1000 parts of deionized water,

[0080] 20 parts of ethylenediamine.

Embodiment 3

[0081] Embodiment 3: a kind of EVA material water-based treatment agent emulsion provided by the present invention and preparation method are basically identical with embodiment 1 and 2, and its difference is:

[0082] The mass parts of raw material and each component thereof are as follows:

[0083] 700 parts of hydroxyl-terminated polyisoprene (Mn=1500),

[0084] 2,2-dimethylol propionic acid 30 parts,

[0085] 180 parts of isophorone diisocyanate,

[0086] 0.08 parts of dibutyltin dilaurate,

[0087] 400 parts of methyl ethyl ketone,

[0088] 10 parts of triethylamine,

[0089] 800 parts of deionized water,

[0090] Hexamethylenediamine 27 parts.

[0091] Although the solvent used in the present invention is inert to isocyanate, it is soluble in water and has good dissolving ability, so that the product can obtain excellent performance.

[0092] The EVA water-based treatment agent provided by the invention has no discharge of volatile organic compounds during use, is...

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Abstract

The invention discloses emulsion of a water-based primer for EVA materials. The emulsion is prepared from the following raw materials of hydroxyl terminated polyolefin, dihydroxymethyl carboxylic acid, aliphatic diisocyanate, a catalyst, a solvent, triethylamine, deionized water and an amine-type chain extender. The invention also discloses a method for preparing the emulsion. The method comprises five steps of preparation of raw materials, polyreaction, salt forming reaction, emulsifying chain extension and synthesis, is simple and easy for implementation, has low requirements on equipment and can realize industrialized production easily; the emission of volatile organic matters is avoided, which benefits environmental protection and health of operators; UV radiation is unavailable, the emulsion is easy to use, and the preparation method is simple and practical; the emulsion has strong affinity to the EVA materials and is quite compatible with other binders; and the EVA materials treated by the EVA water-based primer provided by the invention can be bonded by various binders, and the bonding strength is quite high.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and relates to a treatment agent emulsion, in particular to an aqueous treatment agent emulsion for EVA materials with high solid content and fast drying speed and a preparation method thereof. Background technique [0002] In order to achieve a good bonding effect in cold-bonded shoemaking, it is necessary to have suitable adhesives, curing agents and treatment agents, as well as the most appropriate bonding process conditions. People generally pay more attention to adhesives, curing agents and process conditions, but the use of treatment agents and their possible effects are often ignored by many shoe manufacturers. [0003] The shoe materials used in shoe-making production are various, and the common ones are rubber, leather, PVC artificial leather, PU synthetic leather, thermoplastic elastomer (TPR), EVA foam material, nylon and other chemical materials. The surface states of these ...

Claims

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Application Information

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IPC IPC(8): C08G18/75C08G18/73C08G18/65C08G18/62C08G18/34C08G18/32C09D175/04
Inventor 张安洪林款兴
Owner 东莞智炜新材料股份有限公司
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