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A kind of adhesive and its preparation method and application

An adhesive and wet-bonding technology, applied in the direction of adhesive types, polyurea/polyurethane adhesives, polymer adhesive additives, etc., can solve the problems of non-combustibility, troublesome use, etc., and achieve energy saving and good Effect of heat resistance and improvement of production efficiency

Active Publication Date: 2022-08-05
WANHUA CHEM GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Water-based polyurethane (WPU) has the advantages of non-toxic, non-flammable, and non-polluting. It has been widely used in shoe sole and upper bonding, automotive interior bonding, furniture woodworking and other industries, but most of these adhesives are heat-activated. Only after the glued parts go through the drying tunnel to dry the water and activate the glue at the same time can the bonding effect be achieved, which is troublesome to use

Method used

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  • A kind of adhesive and its preparation method and application
  • A kind of adhesive and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] A water-based adhesive is composed of the following components by weight:

[0122] Waterborne polyurethane dispersion A99 parts

[0123] Wet adhesion promoter Texanol 0.5 part

[0124] BYK-024 (defoamer) 0.05 part

[0125] TEGO-KL245 (wetting agent) 0.2 parts

[0126] U604 (thickener) 0.5 part

[0127] The adhesive for the water-based case and bag composite hemming of this example is prepared through the following steps:

[0128] Add the water-based polyurethane dispersion, wet adhesion promoter, defoamer BYK-024, and wetting agent TEGO-245 into the stirring tank, and the stirring speed is 400 rpm for 20 minutes; then add the thickener 604, the stirring speed is 700 rpm, stirring for 30 minutes, adjusting the viscosity to 50000-80000cps, and discharging to obtain the water-based adhesive 1.

Embodiment 2

[0130] A water-based adhesive is composed of the following components by weight:

[0131] Waterborne polyurethane dispersion B 96 parts

[0132] Wet adhesion promoter ethylene glycol butyl ether 3 parts

[0133] BYK-024 (defoamer) 0.05 part

[0134] TEGO-KL245 (wetting agent) 0.2 parts

[0135] U604 (thickener) 0.3 part

[0136] The adhesive for the water-based case and bag composite hemming of this example is prepared through the following steps:

[0137] Add the water-based polyurethane dispersion, wet adhesion promoter, defoamer BYK-024, and wetting agent TEGO-245 into the stirring tank, and the stirring speed is 500 rpm for 12 minutes; then add the thickener 604, the stirring speed is 800 rpm, stirring for 30 minutes, adjusting the viscosity to 50000-80000cps, and discharging to obtain water-based adhesive 2.

Embodiment 3

[0139] A water-based adhesive is composed of the following components by weight:

[0140] Waterborne polyurethane dispersion C 95 parts

[0141] Wet adhesion promoter Hexylene glycol butyl ether acetate 4 parts

[0142] BYK-024 (defoamer) 0.05 part

[0143] TEGO-KL245 (wetting agent) 0.2 parts

[0144] U604 (thickener) 0.5 part

[0145] The adhesive for the water-based case and bag composite hemming of this example is prepared through the following steps:

[0146] Add water-based polyurethane dispersion, wet adhesion promoter, defoamer BYK-024, and wetting agent TEGO-KL 245 into the stirring tank, stirring at a speed of 350 rpm for 20 minutes; then add thickener 604, the stirring speed is 900 rpm, stirring for 20 minutes, adjusting the viscosity to 50000-80000cps, and discharging to obtain water-based adhesive 3.

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Abstract

The invention relates to an adhesive and a preparation method and application thereof. The adhesive comprises the following components in parts by weight: 94-99.5 parts of an aqueous polyurethane dispersion, 0.5-5 parts of a wet adhesion promoter, and 0.03-5 parts of a defoamer 0.08 part, wetting agent 0.1-0.3 part, thickening agent 0.1-1 part; wherein, the hydroxyl content of the water-based polyurethane dispersion is 3-5 mgKOH / g, and the molecular weight is 15-250,000 Daltons; wherein the wet Adhesion promoters are alcohol ethers, alcohol esters or polyoxyethylene polyoxypropylene polyethers that have a destabilizing effect on polyurethane emulsions; plasticizing films. The water-based adhesive of the present invention is suitable for composite hemming applications such as quick-setting luggage leather goods, shoe uppers, furniture mattresses and the like.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to an adhesive and a preparation method and application thereof. Background technique [0002] China and Southeast Asia, Vietnam, Indonesia and other countries are the world's largest producers and consumers of shoe products, luggage and leather products. Adhesive is one of the most important materials in the manufacturing process of shoes and luggage and leather products, and it also determines the final The quality and service life of the finished product, etc., and the use of adhesives improves the manufacturing efficiency. [0003] At present, in order to improve efficiency, solvent-based adhesives, such as grafted neoprene, are mostly used in shoe upper material hemming sewing machines, luggage and leather goods compounding and hemming sewing machines. The general process is: spraying the materials or accessories that need to be compounded Sizing, drying at room temperature for a few ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J175/04C09J175/06C09J175/08C09J11/06C09J11/08C08G18/66C08G18/48C08G18/42C08G18/34C08G18/28C08G18/32
CPCC09J175/04C09J175/06C09J175/08C09J11/06C09J11/08C08G18/6625C08G18/4018C08G18/4825C08G18/4238C08G18/348C08G18/283C08G18/6618C08G18/4202C08G18/425
Inventor 张斌刘云玲晋云全王海梅纪学顺
Owner WANHUA CHEM GRP CO LTD
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