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High-bending-resistance PU (polyurethane) shoe material and manufacturing method thereof

A technology of high folding resistance and shoe material, applied in the direction of sole, footwear, application, etc., can solve the problems of unsatisfactory folding resistance and easy fracture, and achieve the effect of improving tensile strength and good folding resistance.

Inactive Publication Date: 2015-01-07
SUZHOU JINGRO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

PU shoe material has a microporous structure, which has the advantages of high strength, good elasticity, light and comfortable wearing, oil resistance, good resistance to chemical samples, and easy processing and molding. However, its folding resistance is not ideal, and it is prone to breakage after a long time of use. Phenomenon

Method used

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  • High-bending-resistance PU (polyurethane) shoe material and manufacturing method thereof
  • High-bending-resistance PU (polyurethane) shoe material and manufacturing method thereof
  • High-bending-resistance PU (polyurethane) shoe material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A kind of high folding-resistant PU shoe material, its parts by weight consist of:

[0025]

[0026] Its manufacturing method comprises the following steps:

[0027] (1) stirring and refluxing the nano-montmorillonite and the coupling agent, washing with acetone, filtering, drying under vacuum conditions, and grinding to obtain the modified nano-montmorillonite;

[0028] (2) baking and drying polyether polyol and isocyanate respectively, for subsequent use;

[0029] (3) Add other components in the formula and the modified nano-montmorillonite obtained in the step (1) to the polyether polyol after drying, and mix uniformly to form a mixture;

[0030] (4) mixing the mixture obtained in step (3) with the dried isocyanate and casting to obtain a high folding-resistant PU shoe material.

Embodiment 2

[0032] A kind of high folding-resistant PU shoe material, its parts by weight consist of:

[0033]

[0034] Its manufacturing method comprises the following steps:

[0035] (1) stirring and refluxing the nano-montmorillonite and the coupling agent, washing with acetone, filtering, drying under vacuum conditions, and grinding to obtain the modified nano-montmorillonite;

[0036] (2) baking and drying polyether polyol and isocyanate respectively, for subsequent use;

[0037] (3) Add other components in the formula and the modified nano-montmorillonite obtained in the step (1) to the polyether polyol after drying, and mix uniformly to form a mixture;

[0038] (4) mixing the mixture obtained in step (3) with the dried isocyanate and casting to obtain a high folding-resistant PU shoe material.

Embodiment 3

[0040] A kind of high folding-resistant PU shoe material, its parts by weight consist of:

[0041]

[0042]

[0043] Its manufacturing method comprises the following steps:

[0044] (1) stirring and refluxing the nano-montmorillonite and the coupling agent, washing with acetone, filtering, drying under vacuum conditions, and grinding to obtain the modified nano-montmorillonite;

[0045] (2) baking and drying polyether polyol and isocyanate respectively, for subsequent use;

[0046] (3) Add other components in the formula and the modified nano-montmorillonite obtained in the step (1) to the polyether polyol after drying, and mix uniformly to form a mixture;

[0047] (4) mixing the mixture obtained in step (3) with the dried isocyanate and casting to obtain a high folding-resistant PU shoe material.

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PUM

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Abstract

The invention provides a high-bending-resistance PU (polyurethane) shoe material which is prepared from the following components in parts by weight: 40-60 parts of polyether glycol, 5-15 parts of chain extender, 25-35 parts of isocyanate, 2-6 parts of nano montmorillonite, 0.3-1 part of coupling agent, 0.1-0.5 part of catalyst, 0.1-0.5 part of antioxidant and 0.5-2 parts of water. The invention also provides a manufacturing method of the high-bending-resistance PU shoe material. The PU shoe material provided by the invention has excellent bending resistance.

Description

Technical field: [0001] The invention relates to a shoe material, in particular to a high folding-resistant PU shoe material and a manufacturing method thereof. Background technique: [0002] PU is polyurethane, which has good resilience and comfort, so it is widely used in people's daily life. As a shoe material, PU was industrialized in Europe in the 1960s, entered the North American market in the 1970s, and developed rapidly around the world in the 1980s. At present, PU shoe materials can account for about 8% of the world's footwear industry. PU shoe material has a microporous structure, which has the advantages of high strength, good elasticity, light and comfortable wearing, oil resistance, good resistance to chemical samples, and easy processing and molding. However, its folding resistance is not ideal, and it is prone to breakage after a long time of use. Phenomenon. Invention content: [0003] The technical problem to be solved by the present invention is to pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08G18/08C08K13/06C08K9/06C08K3/34A43B13/04
CPCA43B1/10C08G18/48C08G18/6666C08K3/346C08K9/06C08K13/06C08K2201/011C08G2110/0083
Inventor 黄超
Owner SUZHOU JINGRO TECH
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