Adhesive as well as preparation method and application thereof

An adhesive, wet-adhesive technology, applied in the direction of adhesive types, polyurea/polyurethane adhesives, polymer adhesive additives, etc., can solve problems such as non-flammability and troublesome use

Active Publication Date: 2021-03-05
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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  • Adhesive as well as preparation method and application thereof
  • Adhesive as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0122] Waterborne polyurethane dispersion A99 parts

[0123] Wet adhesion promoter Texanol 0.5 parts

[0124] BYK-024 (defoamer) 0.05 part

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

[0126] U604 (thickener) 0.5 parts

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

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

Embodiment 2

[0130] A water-based adhesive is made up 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 parts

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

[0135] U604 (thickener) 0.3 parts

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

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

Embodiment 3

[0139] A water-based adhesive is made up 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 parts

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

[0144] U604 (thickener) 0.5 parts

[0145] The present example water-based case and bag composite hemming adhesive 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 at a stirring speed of 350 rpm for 20 minutes; then add the thickener 604, the stirring speed is 900 rpm, stirring for 20 minutes, the viscosity is adjusted to 50000-80000cps, and the water-based adhesive 3 is obtained by discharging.

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Abstract

The invention relates to an adhesive as well as a preparation method and application thereof. The adhesive is prepared from the following components in parts by weight: 94-99.5 parts of waterborne polyurethane dispersion, 0.5-5 part of a wet adhesion promoter, 0.03-0.08 part of a defoaming agent, 0.1-0.3 part of a wetting agent and 0.1-1 part of a thickening agent; the hydroxyl content of the waterborne polyurethane dispersion is 3-5mgKOH/g, and the molecular weight of the waterborne polyurethane dispersion is 150000-250000 Daltons; the wet adhesion promoter is alcohol ether, alcohol ether ester or polyoxyethylene polyoxypropylene polyether which has a destabilization effect on an polyurethane emulsion and has a plasticizing effect on an adhesive film. The water-based adhesive disclosed bythe invention is suitable for being applied to composite edge folding of luggage leather products, vamps, furniture mattresses and the like which are rapidly shaped.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to an adhesive and its preparation method and application. Background technique [0002] Vietnam, Indonesia and other countries in China and Southeast Asia are the world's largest producers and consumers of shoes and bags and leather goods. Adhesives are one of the most important materials in the manufacturing process of shoes and bags and leather goods. The quality and service life of finished products, etc., and the use of adhesives can improve manufacturing efficiency. [0003] At present, in order to improve efficiency, solvent-based adhesives, such as grafted neoprene, are mostly used for hemming stitching of shoe upper materials, composite luggage and leather goods, and hemming stitching. The general process is: spraying materials or accessories that need to be composited Sizing, drying at room temperature for a few minutes, compounding or folding layer by layer, and then strengtheni...

Claims

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Application Information

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Patent Type & Authority Applications(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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