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Waterborne polyurethane shoe adhesive and preparation method thereof

A technology of water-based polyurethane and shoe glue, which is applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., which can solve problems such as increasing the amount of glue, discontinuous film, and affecting leveling, and achieve reduction The amount of gluing, convenient operation, and the effect of reducing viscosity

Active Publication Date: 2020-08-11
骏能化工(龙南)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the solid content exceeds 60%, the viscosity rises sharply with the increase of the solid content. High viscosity will easily lead to poor fluidity and discontinuous film, which will affect its leveling and increase the amount of glue applied. Therefore, , looking for a water-based polyurethane shoe adhesive with high solid content, low viscosity and high bonding strength is the subject of research by those skilled in the art.

Method used

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  • Waterborne polyurethane shoe adhesive and preparation method thereof
  • Waterborne polyurethane shoe adhesive and preparation method thereof
  • Waterborne polyurethane shoe adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of water-based polyurethane shoe glue, by weight, comprises following raw material:

[0024]

[0025]

[0026] A preparation method of water-based polyurethane shoe glue, comprising the steps of:

[0027] Add sulfonated polyether polyol and poly-1,6-hexanediol adipate to the polymerization reactor according to the above-mentioned component ratio, raise the temperature to 120°C, distill and remove water for 2 hours under reduced pressure, and cool down to 65°C after the water removal is completed , add isophorone-diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, dibutyltin dilaurate, trehalose, heat up to 90°C, react for 2h; then cool the reaction product to 70°C, add butyl Ketone, after stirring for 10 minutes, add 1,4-butanediol and dimethylol butyric acid, heat up to 90°C, and keep warm for 1h; then cool the reaction product to 35°C, add sodium dodecylbenzenesulfonate and deionized Water, under the condition of the speed of 5000r / min in a high-speed s...

Embodiment 2

[0029] A kind of water-based polyurethane shoe glue, by weight, comprises following raw material:

[0030]

[0031] A preparation method of water-based polyurethane shoe glue, comprising the steps of:

[0032] Add sulfonated polyether polyol and poly(1,6-hexanediol adipate) to the polymerization reactor according to the above-mentioned component ratio, raise the temperature to 110°C, distill and remove water for 2 hours under reduced pressure, and cool down to 60°C after the water removal is completed , add isophorone-diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, dibutyltin dilaurate, trehalose, heat up to 80°C, react for 2h; then cool the reaction product to 60°C, add butyl Ketone, after stirring for 10 minutes, add 1,4-butanediol and dimethylol butyric acid, heat up to 80°C, and keep warm for 1h; then cool the reaction product to 30°C, add sodium dodecylbenzenesulfonate and deionized Water, under the condition of the speed of 4500r / min in a high-speed shear mixer,...

Embodiment 3

[0034] A kind of water-based polyurethane shoe glue, by weight parts, comprises following raw material:

[0035]

[0036] A preparation method of water-based polyurethane shoe glue, comprising the steps of:

[0037] Add sulfonated polyether polyol and poly-1,6-hexanediol adipate to the polymerization reactor according to the above component ratio, raise the temperature to 120°C, distill and remove water for 2 hours under reduced pressure, and cool down to 70°C after the water removal is completed , add isophorone-diisocyanate, 4,4'-dicyclohexylmethane diisocyanate, dibutyltin dilaurate, trehalose, heat up to 100°C, react for 2h; then cool the reaction product to 70°C, add butyl Ketone, after stirring for 10 minutes, add 1,4-butanediol and dimethylol butyric acid, heat up to 90°C, and keep warm for 1h; then cool the reaction product to 40°C, add sodium dodecylbenzenesulfonate and deionized Water, under the condition of the speed of 5000r / min in a high-speed shear mixer, she...

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Abstract

The invention belongs to the technical field of polyurethane adhesives, and particularly relates to a waterborne polyurethane shoe adhesive and a preparation method thereof. The waterborne polyurethane shoe adhesive is prepared from isophorone-diisocyanate, 4, 4 '-dicyclohexylmethane diisocyanate, sulfonated polyether polyol, poly (1, 6-hexamethylene adipate), dibutyltin dilaurate, ethylenediamine, trehalose, sodium dodecyl benzene sulfonate, 1, 4-butanediol, dimethylolbutyric acid and butanone. The waterborne polyurethane shoe adhesive prepared by the invention has the characteristics of highsolid content, low viscosity, high bonding strength, good water resistance and no pollution. The preparation method of the waterborne polyurethane shoe adhesive is simple in process and convenient tooperate, the solvent is easy to recycle, and the cost is saved.

Description

technical field [0001] The invention belongs to the field of polyurethane adhesives, and in particular relates to a water-based polyurethane shoe glue and a preparation method thereof. Background technique [0002] my country's footwear industry mainly uses solvent-based adhesives to bond shoe materials. These traditional adhesives contain volatile organic compounds (VOCs) and harmful gas pollutants (HAPs), which have problems such as environmental pollution and safety hazards. As a new generation of environmentally friendly products, water-based polyurethane has the advantages of low odor, non-combustibility, no pollution to the environment, and convenient construction. It has become a key research direction to replace solvent-based adhesives. Polyurethane adhesives refer to adhesives containing carbamate groups (-NHCOO-) or isocyanate groups (-NCO) in the molecular chain. Polyurethane adhesive itself has the characteristics of wide selection of raw materials, strong molec...

Claims

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Application Information

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IPC IPC(8): C08G18/75C08G18/64C08G18/66C08G18/50C08G18/42C08G18/34C08G18/32C09J175/04
CPCC08G18/4081C08G18/4238C08G18/482C08G18/5072C08G18/6484C08G18/6607C08G18/6618C08G18/6625C08G18/755C08G18/758C09J175/04
Inventor 王兰柱王子文高丙义
Owner 骏能化工(龙南)有限公司
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