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Low-temperature-resistant low-density polyurethane sole product composition material and preparation method thereof

A low-density, polyurethane technology, used in the field of polyurethane elastomers, can solve the problems of poor mutual solubility of polyester and polyether, no price, decreased mechanical properties, etc., and achieve the effect of excellent low temperature resistance.

Inactive Publication Date: 2019-01-25
SHANDONG INOV POLYURETHANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Reducing the density of polyurethane soles can significantly reduce costs and provide a lighter wearing experience, but reducing the density usually leads to problems such as a decrease in mechanical properties and poor dimensional stability of the soles
Polyester-based shoe materials can be improved by adding polyester polymer polyols, but polyester-based polymer polyols have a high viscosity, and the production process is complicated and costly. Currently, there is no general-purpose product with a reasonable price on the market. ; If polyether polymer polyol is added to the main raw material of polyester, there will be the problem of poor miscibility between polyester and polyether

Method used

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  • Low-temperature-resistant low-density polyurethane sole product composition material and preparation method thereof
  • Low-temperature-resistant low-density polyurethane sole product composition material and preparation method thereof
  • Low-temperature-resistant low-density polyurethane sole product composition material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] The low-temperature-resistant low-density polyurethane sole product composite material described in this embodiment 1, the composite material is composed of A component and B component with a weight and number ratio of A:B=100:65, wherein:

[0030] A component is measured in parts by mass, and the raw material composition is as follows:

[0031]

[0032] Component B is a polyol-modified isocyanate with an NCO content of 25%; in parts by mass, the composition of the raw materials is as follows:

[0033] Polyether ester polyol A 0 parts

[0034] Polyester polyol D 15 parts

[0035] 85 parts of isocyanate.

[0036] A component material: Polyether polyol A with a number average molecular weight of 2500 was prepared by polycondensation reaction of polyether polyol with a molecular weight of 500 and a functionality of 1.9, ethylene glycol, diethylene glycol and adipic acid; Use ethylene glycol, diethylene glycol and 1,4-butanediol to undergo polycondensation reaction wi...

Embodiment 2

[0040] The low-temperature-resistant low-density polyurethane shoe sole product composite material described in this embodiment 2, the composite material is composed of A component and B component with a weight and number ratio of A:B=100:85, wherein:

[0041] A component is measured in parts by mass, and the raw material composition is as follows:

[0042]

[0043] Component B is a polyol-modified isocyanate with an NCO content of 21%; in parts by mass, the composition of the raw materials is as follows:

[0044] Polyether ester polyol A 4 parts

[0045] Polyester polyol D 16 parts

[0046] 80 parts of isocyanate.

[0047] Component A material: Polyether polyol A with a molecular weight of 1500 and a functionality of 2.2, polyether polyol A with a number average molecular weight of 4000 was obtained through polycondensation reaction of diethylene glycol and adipic acid; , diethylene glycol and adipic acid undergo polycondensation reactions to obtain polyester polyol B w...

Embodiment 3

[0051] The low-temperature-resistant low-density polyurethane shoe sole product composite material described in this embodiment 3, the composite material is composed of A component and B component with a weight and number ratio of A:B=100:105, wherein:

[0052] A component is measured in parts by mass, and the raw material composition is as follows:

[0053]

[0054] Component B is a polyol-modified isocyanate with an NCO content of 18%; in parts by mass, the composition of the raw materials is as follows:

[0055] 10 parts of polyether ester polyol A

[0056] Polyester polyol D 15 parts

[0057] 75 parts of isocyanate.

[0058] A component material: polyether polyol with a molecular weight of 1000 and a functionality of 2.0, diethylene glycol, 1,4-butanediol and adipic acid are polycondensed to obtain a polyether ester polyol with a number average molecular weight of 2500 Alcohol A; use ethylene glycol, 1,4-butanediol and adipic acid, terephthalic acid through polyconde...

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Abstract

The invention belongs to the technical field of polyurethane elastomers, and particularly relates to a low-temperature-resistant low-density polyurethane sole product composition material and a preparation method thereof. The composition material comprises a component A and a component B according to a weight ratio of 100:65-105, wherein the raw materials of the component A comprise polyether ester polyol A, polyester polyol B, polyether polymer polyol C, a chain extender, a cross-linking agent, a foam stabilizer, a catalyst and a foaming agent, the component B is polyol-modified isocyanate, and the NCO content is 18-25%. According to the present invention, with the application of the combination material to prepare the low-temperature-resistant low-density polyurethane sole, the problem of mutual solubility of polyester and polyether in the material A is effectively solved, and the added polyether polymer polyol can be purchased at a reasonable price on the market so as not to increase the raw material cost; and the low density sole prepared according to the composition material has excellent low-temperature resistance.

Description

technical field [0001] The invention belongs to the technical field of polyurethane elastomers, and in particular relates to a low-temperature-resistant low-density polyurethane sole product composite material and a preparation method thereof. Background technique [0002] Polyurethane material has the advantages of superior physical and mechanical properties, acid and alkali corrosion resistance, high load-bearing capacity and wide hardness range. It has become one of the mainstream materials in the shoe sole market and is currently widely used in the production of casual shoes, sports shoes, safety shoes and sandals. Wait. The main raw materials of polyurethane used in the production of shoe soles can be divided into two types: polyester type and polyether type according to the polyol used. At present, most polyurethane sole materials on the market are mainly polyester, accounting for about 80% of the polyurethane shoe material market. Polyester soles are characterized b...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/65C08G18/42C08G18/63C08G18/12A43B13/04C08G101/00
CPCA43B13/04C08G18/12C08G18/4202C08G2110/0083C08G18/664C08G18/6564
Inventor 徐军孙清峰任明月甘经虎李海朝
Owner SHANDONG INOV POLYURETHANE
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