Adhesive used for shoemaking

A technology for adhesives and shoes, applied in the field of adhesives, can solve problems such as poor water resistance, and achieve the effects of good water resistance and acid and alkali resistance, less environmental pollution, and good bonding stability

Inactive Publication Date: 2015-03-04
赵冯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an adhesive for shoemaking, which can solve the problem of poor water resistance of existing adhesives for shoemaking

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] This example is prepared from the following raw materials in parts by weight: 25 parts of toluene diisocyanate, 18 parts of poly-1,4-butylene adipate diol, 10 parts of polyol, 10 parts of hydroquinone, nano 3 parts of wollastonite powder, 2 parts of nitrocellulose, 40 parts of water.

[0015] The preparation method is: transfer poly-1,4-butylene adipate diol and water into the reaction kettle, evacuate until the vacuum gauge shows -0.1, heat the solid, raise the temperature to 110°C, keep it for 2 hours, and fill it with nitrogen When the reading on the vacuum gauge is -0.015, cool down the reactor to 50°C, add toluene diisocyanate and hydroquinone, raise the temperature to 85°C, keep it for 3 hours, cool down to 65°C, add pentaerythritol, nano wollastonite powder and nitric acid Cellulose, stir evenly, heat up to 80°C and keep for 20 minutes.

Embodiment 2

[0017] This example is prepared from the following raw materials in parts by weight: 30 parts of toluene diisocyanate, 10 parts of poly-1,4-butylene adipate diol, 8 parts of polyol, 7.5 parts of hydroquinone, nano 4 parts of wollastonite powder, 1 part of nitrocellulose, 45 parts of water.

[0018] The preparation method is: transfer poly-1,4-butylene adipate diol and water into the reaction kettle, evacuate until the vacuum gauge shows -0.1, heat the solid, raise the temperature to 120°C, keep it for 1.5 hours, and fill it with nitrogen When the reading of the vacuum gauge is -0.015, cool down the temperature in the reactor to 55°C, add toluene diisocyanate and hydroquinone, raise the temperature to 80°C, keep it for 3 hours, cool down to 60°C, add trimethylolpropane and nano silicon Limestone powder and nitrocellulose, stir evenly, raise the temperature to 83°C, and keep it for 15 minutes.

Embodiment 3

[0020] This example is prepared from the following raw materials in parts by weight: 27.5 parts of toluene diisocyanate, 14 parts of poly-1,4-butylene adipate diol, 12 parts of polyol, 5 parts of hydroquinone, nano 5 parts of wollastonite powder, 3 parts of nitrocellulose, 50 parts of water.

[0021] The preparation method is: transfer poly-1,4-butylene adipate diol and water into the reaction kettle, evacuate until the vacuum gauge shows -0.1, heat the solid, raise the temperature to 115°C, keep it for 2 hours, and fill it with nitrogen When the reading on the vacuum gauge is -0.015, cool down the reactor to 60°C, add toluene diisocyanate and hydroquinone, raise the temperature to 80°C, keep it for 2.5 hours, cool down to 65°C, add pentaerythritol, nano wollastonite powder and nitric acid Cellulose, stir evenly, raise the temperature to 75°C and keep it for 25 minutes.

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PUM

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Abstract

The invention discloses an adhesive used for shoemaking. The adhesive is prepared from the following raw materials in parts by weight: 25-30 parts of toluene diisocyanate, 10-18 parts of poly(1,4-butanediol) adipate glycol, 8-12 parts of polyol, 5-10 parts of hydroquinone, 3-5 parts of nano wollastonite powder, 1-3 parts of nitrocellulose and 40-50 parts of water. The adhesive used for shoemaking is low in production cost, simple in process and light in environmental pollution, has moderate viscosity, good flowability, good bonding stability and better water and acid and base resistance, has good bonding effects and is conducive to improving the quality of shoes and prolonging the service lives of the shoes.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to an adhesive for shoemaking. Background technique [0002] There are many kinds of adhesives for shoemaking, among which neoprene adhesives and water-based polyurethane adhesives are used in the largest amount. Among them, neoprene adhesives have high initial adhesion, high bonding strength, flexible adhesive layer, and weather resistance. However, its storage stability is poor, its toxicity is high, and it is harmful to human health; water-based polyurethane adhesives are popular because of their non-toxic, non-flammable, environmentally friendly, and low manufacturing costs. [0003] However, polyurethane adhesives still have the problem of poor water resistance, which makes the shoes easy to open once they are soaked in water, shortening the service life of shoes. Therefore, the water resistance of existing polyurethane adhesives still needs to be further improved. Contents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/06C08G18/66C08G18/42
Inventor 赵冯
Owner 赵冯
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