Water-resistant low-temperature-resistant water-based adhesive and application thereof and method for bonding two-layer cowhide product

A low-temperature-resistant, water-based technology, applied in the direction of adhesives, composite leather, adhesive types, etc., can solve the problems of low strength of two-layer cowhide, harsh use environment, and poor low-temperature resistance, so as to broaden the use environment, simplify construction, and improve The effect of adhesion fastness

Inactive Publication Date: 2018-07-31
运研材料科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The technical problem to be solved by the present invention is that the independent two-layer cowhide has low strength, poor water resistance, poor low temperature resistance, harsh use environment, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Composition of water-based viscose (by mass percentage):

[0046] 90% carboxylated styrene-butadiene latex compounded with water-based polyurethane, 2% water-based isocyanate (EC-377, Siwo Chemical), 1% water-based thickener (ASE-60, Elements), leveling agent (byk-333, Byk Chemical) 1%, defoamer (byk-024, Byk Chemical) 0.3%, and the balance is water, wherein the weight ratio of the water-based polyurethane to carboxylated styrene-butadiene latex is 3:1.

[0047] (2) The preparation method of water-based viscose:

[0048] According to the mass percentage composition of the water-based viscose in (1), first take the carboxylated styrene-butadiene latex compounded with water-based polyurethane, add water-based isocyanate (ec-377, DSM) and stir evenly with a mixer, add leveling agent (byk-333 , Byk Chemicals) and defoamer (byk-024, Byk Chemicals), and finally add water-based thickener (ASE-60, Elements) and the rest of the water and stir evenly to obtain water-based vi...

Embodiment 2

[0054] (1) Composition of water-based viscose (by mass percentage):

[0055] Carboxylated styrene-butadiene latex compounded with water-based polyurethane is 90%, water-based curing agent (XR-501, Xirun Chemical) 3%, water-based thickener (DF-LD, Difu Industrial) 1.5%, leveling agent (silok8000, Si Locke) 0.3%, defoamer (w-052, Hemings) 0.1%, and the balance is water, wherein the weight ratio of the water-based polyurethane to carboxylated styrene-butadiene latex is 3:1.

[0056] (2) The preparation method of water-based viscose:

[0057] According to the mass percentage composition of the water-based viscose in (1), first take the carboxylated styrene-butadiene latex compounded with water-based polyurethane, add a water-based curing agent (XR-501, Xirun Chemical) and stir evenly with a mixer, and add a leveling agent (silok8000, Srock) and defoamer (w-052, Hemings), and finally add water-based thickener (DF-LD, Difu Industrial) and the rest of the water and stir evenly to ob...

Embodiment 3

[0063] (1) Composition of water-based viscose (by mass percentage):

[0064] Carboxylated styrene-butadiene latex compounded with water-based polyurethane 95%, water-based curing agent (sv-02, Nisshinbo) 3%, water-based thickener (350D, Hemings) 2%, leveling agent (fn-211, Haiming Mins) 0.5%, defoamer (byk024, Byk Chemicals) 0.2%, and the balance is water, wherein the weight ratio of the water-based polyurethane to carboxylated styrene-butadiene latex is 3:1.

[0065] (2) The preparation method of water-based viscose:

[0066] According to the mass percentage composition of the water-based viscose in (1), first take the carboxylated styrene-butadiene latex compounded with water-based polyurethane, add the water-based curing agent (sv-02, Nisshinbo) and stir evenly with a mixer, and then add the leveling agent (fn- 211, Hemings) and defoamer (byk024, Byk Chemicals), and finally add water-based thickener (350D, Hemings) and the rest of the water and stir evenly to obtain water-...

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Abstract

The invention provides a water-resistant low-temperature-resistant water-based adhesive and application thereof and a method for bonding a two-layer cowhide product, wherein the water-resistant low-temperature-resistant water-based adhesive comprises 90% to 95% by weight of carboxylated styrene-butadiene latex, 2%-4% of an aqueous curing agent, 0.5%-1.5% of a thickener, 0.3%-0.5% of a leveling agent, 0.2% of a defoamer and balance of water, wherein the carboxylated styrene-butadiene latex is carboxylated styrene-butadiene latex compounded with aqueous polyurethane. The water-based adhesive hasthe advantages of low temperature resistance of-10 DEG C, bending resistance, water resistance and the like. The water-based adhesive is applied to the bonding of two-layer cowhide, enhances the strength, durability and storage resistance of the two-layer cowhide, and broadens the use environment of the two-layer cowhide. The produced two-layer cowhide is suitable for most of two-layer cowhide clothing, bags and other products on the market.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a water-based adhesive resistant to water and low temperature, its application and a method for bonding two-layer cowhide products. Background technique [0002] The leather industry is a pillar industry in China's light industry. Genuine leather is divided into top layer cowhide and second layer cowhide. The top layer of skin is directly processed from the raw skin of various animals, or the skin of cattle, pigs, horses and other animals with a thicker layer of skin is depilated and cut into upper and lower layers, and the upper layer with tight fibrous tissue is processed into various head layers Layers of skin. Broken leather is also the top layer of leather, which is the leftover material of the whole top layer of cowhide. This material belongs to the manufacture of low-grade leather products. There will be no peeling and peeling. Two-layer cowhide is the se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J11/06C09J11/08C08G18/10C08G18/32C08G18/48C08G18/75C14B7/04
CPCC08G18/10C08G18/4854C08G18/755C08L2205/035C09J11/06C09J11/08C09J175/04C14B7/04C08L13/02C08G18/3228
Inventor 张卓周小三马永龙
Owner 运研材料科技(上海)有限公司
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