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Polyether combined material for shoe soles and preparation method thereof

A technology of composite materials for shoe soles, which is applied in the field of composite materials for shoe soles. It can solve problems such as poor water resistance and poor low-temperature elasticity, and achieve the effects of good molding stability, good formability, and small dimensional changes.

Active Publication Date: 2015-05-13
ZIBO DEXIN LIANBANG CHEM IND
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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 a composite material for polyether shoe soles and a preparation method thereof, which overcomes the disadvantages of poor water resistance and poor low-temperature elasticity of polyester shoe soles, and has good formability, and can impart excellent low-temperature flexibility and elasticity. At the same time, the physical and mechanical properties of the sole can be kept basically unchanged

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of component A: Mix 80 parts of polyether polyol, 2 parts of MOCA, 1.5 parts of dichloromethane and 10 parts of deionized water;

[0025] (2) Preparation of component B: Mix polyether polyol and modified MDI and heat up to 80 degrees Celsius, react for 2 hours and degas for 24 hours to obtain a prepolymer. The relative molecular mass of the isocyanate-terminated prepolymer is 1500, and the NCO% is controlled at 15%;

[0026] (3) Mix 332 parts of catalyst A33 produced by American Gas Company and 20 parts of component A, then add 10 parts of component B and mix to obtain the product.

[0027] Wherein: the functionality of the polyether polyol in the A component and the B component is 2, the molecular weight is 2000, and the polyoxyethylene chain segment is 5%.

Embodiment 2

[0029] (1) Preparation of component A: Mix 70 parts of polyether polyol and 5 parts of deionized water;

[0030] (2) Preparation of component B: Mix polyether polyol and modified MDI and heat up to 70 degrees Celsius, react for 2.5 hours, degas and stand for 24 hours to obtain a prepolymer. The relative molecular mass of the isocyanate-terminated prepolymer is 1800, NCO% Controlled at 18%;

[0031] (3) Mix 1 part of Catalyst T9 produced by American Gas Company and 40 parts of A component, and then add 20 parts of B component and mix to obtain the product.

[0032] Wherein: the polyether polyol in component A and component B has a functionality of 4, a molecular weight of 4000, and a polyoxyethylene chain segment of 15%.

Embodiment 3

[0034] (1) Preparation of component A: Mix 100 parts of polyether polyol, 1 part of MOCA, 3 parts of HCFC-141b and 20 parts of deionized water;

[0035] (2) Preparation of component B: Mix polyether polyol and modified MDI and heat up to 90 degrees Celsius, react for 1.5 hours, degas and stand for 24 hours to obtain a prepolymer. The relative molecular mass of the isocyanate-terminated prepolymer is 2000, NCO% Control at 20%;

[0036] (3) Mix 10 parts of catalyst A3310 produced by American Gas Company and 60 parts of component A, then add 40 parts of component B and mix to obtain the product.

[0037] Wherein: the polyether polyol in component A and component B has a functionality of 6, a molecular weight of 6000, and a polyoxyethylene chain segment of 25%.

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Abstract

The invention relates to a combined material for shoe soles and in particular relates to a polyether combined material for shoe soles and a preparation method thereof. The combined material is prepared from the following raw materials in parts by weight: 20-60 parts of component A, 10-40 parts of component B and 1-10 parts of component C, wherein the component A comprises polyether glycol and a foaming agent; the component B is a blocked isocyanate prepolymer prepared through reaction between polyether glycol and polyisocyanate, the relative molecular mass of the blocked isocyanate prepolymer is 1500-2000, and NCO% is 15-20%; and the component C is a catalyst. The product is prepared by firstly mixing the component A with the component C uniformly and then mixing the mixture with the component B. The combined material and the preparation method have the advantages that the defects that polyester shoe soles have poor water resistance and poor low-temperature elasticity are overcome; the combined material has better formability and can keep the physical and mechanical properties of the shoe soles essentially the same while giving excellent low-temperature flexibility and elasticity; and the preparation method is simple and is easy to operate.

Description

technical field [0001] The invention relates to a composite material for shoe soles, in particular to a composite material for polyether type shoe soles and a preparation method thereof. Background technique [0002] Polyurethane (PU) microporous elastomer sole materials were industrialized in Europe in the late 1960s, and entered the U.S. market in the 1970s. Since the 1980s, they have developed rapidly in the world. The soles made of microporous polyurethane elastomers have high strength, Good elasticity, comfortable, wear-resistant, folding-resistant, oil-resistant, corrosion-resistant, light weight and non-slip, etc., have a buffering effect on the impact on the ground, and can be made into soles of various colors and varieties. The main varieties are leather shoes, cross-country ski shoes, sandals, slippers, sports shoes, travel shoes and antistatic, oil-resistant safety shoes, etc. [0003] PU soles include unit soles, all-polyurethane boots, direct injection of upper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/10A43B13/04C08G101/00
Inventor 王帅陈鹏耿佃勇荆晓东董伟
Owner ZIBO DEXIN LIANBANG CHEM IND
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