Watersoluble adhesive agent used in imitation leather electrostatic real leather embedding product and preparation thereof

A water-based adhesive and leather fiber technology, which is applied in adhesive types, polyurea/polyurethane adhesives, adhesives, etc., can solve the influence of leather fiber adhesion, weather resistance and oil resistance can not be fully exerted , high price and other issues, to achieve the effect of high tensile elasticity, water resistance and adhesion enhancement, and good water resistance

Inactive Publication Date: 2009-01-14
BAILIHE CHEM ZHONGSHAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when used as an adhesive in this application field, because the surface layer is made of leather fibers, the weather resistance and oil resistance cannot be fully exerted. In addition, the addition of organic silicon fluorine makes the adhesion to the more polar leather fibers Sex is affected to some extent
Furthermore, the price is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Preparation of polymer emulsion (I): polyurethane / polyacrylate interpenetrating network polymer emulsion.

[0033] Alternate components:

[0034] (1) Polyurethane aqueous dispersion: 33.6% (aliphatic diisocyanate, polyol polyether, dimethylol propionic acid are main components, glass transition temperature: ≤-60°C, active ingredient content: 35%).

[0035] (2), mixed monomer A: butyl acrylate: 8.6%, ethyl acrylate: 8.6%, styrene: 4.9%, tripropylene glycol diacrylate (crosslinking monomer): 0.3%, mix well;

[0036] (3), mixed monomer B: 3 / 4 mixed monomer A, acrylic acid: 0.4%, dimethylaminoethyl methacrylate (functional monomer (I)): 0.12%, mix well;

[0037] (4), oxidation / reduction initiation system is made into aqueous solution respectively: C 1 : 5% ammonium persulfate aqueous solution 1.6%, C 2 : 5% sodium bisulfite aqueous solution 1.6%, G 3 : 10% tert-butyl hydroperoxide aqueous solution 0.2%, G 4 5% sodium formaldehyde sulfoxylate aqueous solution 0.4%; prep...

Embodiment 2

[0044] Preparation of polymer emulsion (I): polyurethane / polyacrylate interpenetrating network polymer emulsion.

[0045] Alternate components:

[0046] (1) Polyurethane aqueous dispersion: 67.2% (aliphatic diisocyanate, polyol polyether, dimethylol propionic acid are main components, glass transition temperature: ≤-60°C, active ingredient content: 35%).

[0047] (2), mixed monomer A: butyl acrylate: 4.3%, ethyl acrylate: 4.3%, styrene: 2.5%, tripropylene glycol diacrylate (crosslinking monomer): 0.15%, mix well;

[0048] (3), mixed monomer B: 3 / 4 mixed monomer A, acrylic acid: 0.2%, dimethylaminoethyl methacrylate (functional monomer (I)): 0.24%, mix well;

[0049] (4), oxidation / reduction initiation system is made into aqueous solution respectively: C 1 : 5% ammonium persulfate aqueous solution 1.0%, C 2 : 5% sodium bisulfite aqueous solution 1.0%, G 3 : 10% tert-butyl hydroperoxide aqueous solution 0.1%, G 4 0.2% of 5% sodium formaldehyde sulfoxylate aqueous solution; ...

Embodiment 3

[0055] Preparation of polymer emulsion (I): polyurethane / polyacrylate interpenetrating network polymer emulsion.

[0056] Alternate components:

[0057] (1) Polyurethane aqueous dispersion: 67.2% (isophorone diisocyanate, polyol polyether, dimethylol propionic acid are main components, glass transition temperature: ≤-60°C, active ingredient content: 35%) .

[0058] (2), mixed monomer A: butyl acrylate: 4.3%, ethyl acrylate: 4.3%, styrene: 2.5%, tripropylene glycol diacrylate (crosslinking monomer): 0.15%, mix well;

[0059] (3), mixed monomer B: 3 / 4 mixed monomer A, acrylic acid: 0.2%, dimethylaminoethyl methacrylate (functional monomer (I)): 0.24%, mix well;

[0060] (4), oxidation / reduction initiation system is made into aqueous solution respectively: C 1 : 5% ammonium persulfate aqueous solution 1.0%, C 2 : 5% sodium bisulfite aqueous solution 1.0%, G 3 : 10% tert-butyl hydroperoxide aqueous solution 0.1%, G 4 0.2% of 5% sodium formaldehyde sulfoxylate aqueous solutio...

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Abstract

The invention discloses aqueous adhesive applied in the product of artificial leather electronics spanned with real leather fiber and the preparation method of the adhesive, which adopts that interpenetrating polymer network emulsion taking polyurethane as a housing and polyacrylic acid as a nucleus is firstly prepared, acrylate polymer emulsion which can seal the carboxyl in the aqueous polyurethane is then compounded, and a compound aqueous adhesive is obtained by blending the interpenetrating polymer network emulsion and the acrylate polymer emulsion according to a certain proportion. The aqueous adhesive not only remains the artificial leather characteristics of high intensity and elasticity and strong thermal adaptability of the polyurethane, but also remains the strong adhesiveness of the polyurethane to real leather and artificial leather, simultaneously, the water resistance and the aging resistance of the aqueous polyurethane are improved, therefore, the product of electronics spanned with real leather fiber is provided with simulation ability.

Description

technical field [0001] The invention relates to a water-based adhesive used in products of artificial leather electrostatically implanted with leather fibers, in particular to a water-based adhesive modified with acrylate-modified polyurethane aqueous dispersion. [0002] The invention also relates to a preparation method of the acrylate-modified polyurethane aqueous dispersion. Background technique [0003] The existing (synthetic) artificial leather is formed by coating a resin surface layer on a cloth substrate to imitate the appearance of genuine leather. Good imitation leather effect. [0004] In order to achieve this goal, domestic researchers have conducted a lot of research, and have achieved certain results in this field, for example: my country's invention patent: genuine leather fiber leather (ZL200620139995.0). Disclosed is a structure and a manufacturing process of genuine leather fiber leather. Its structure includes: a base cloth (1), a layer of electrostat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04B05D1/04B05D7/02B05D7/24
Inventor 杨宇张伟晔杨剑郭向荣张立军
Owner BAILIHE CHEM ZHONGSHAN
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