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Wear-corrosion-resistant polyurethane material

A polyurethane material and anti-abrasion technology, applied in the field of polyurethane materials, can solve the problems of hardness, strength, modulus, poor heat resistance and mechanical properties of polyurethane elastomers, etc., so as to increase wear resistance and affinity Oiliness, wear resistance improvement effect

Active Publication Date: 2016-01-13
CHUZHOU GLOBAL POLYURETHANE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the heat resistance of polyurethane elastomers is poor. Under high temperature conditions, the mechanical properties decrease significantly, resulting in the decrease of wear resistance and mechanical properties of the elastomers when they are used under dynamic and high temperature conditions. changes, the hardness, strength, and modulus properties all decrease, which limits the application of polyurethane elastomers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An abrasion-resistant polyurethane material, its raw materials include: polytetrahydrofuran ether diol, dimethyl biphenyl diisocyanate, dimethylol butyric acid, triisopropanolamine, hydroquinone dihydroxyethyl ether, nano Titanium dioxide, 3-isocyanatopropyltriethoxysilane, and stannous octoate;

[0021] Among them, during the preparation process of the abrasion-resistant polyurethane, the dried polytetrahydrofuran ether diol is taken, fed with nitrogen gas, heated to 50°C, kept stirring for 60 minutes, and N,N-dimethyl biphenyl diisocyanate is added dropwise. Dimethyl formamide solution, continue to keep stirring for 2h, heat up to 80°C, add dropwise N, N-dimethylformamide solution of dimethylolbutyric acid, keep stirring for 3h, cool down to 60°C, add triisopropanol dropwise N,N-dimethylformamide solution of amine and N,N-dimethylformamide solution of hydroquinone bishydroxyethyl ether, heat preservation and stirring for 5h, cool to room temperature, add water to sett...

Embodiment 2

[0023] An abrasion-resistant polyurethane material, its raw materials include: polytetrahydrofuran ether diol, dimethyl biphenyl diisocyanate, dimethylol butyric acid, triisopropanolamine, hydroquinone dihydroxyethyl ether, nano Titanium dioxide, 3-isocyanatopropyltriethoxysilane, and stannous octoate;

[0024] Among them, during the preparation of the abrasion-resistant polyurethane, the dried polytetrahydrofuran ether diol was taken, fed with nitrogen, heated to 70°C, kept stirring for 50 minutes, and N,N-dimethyl biphenyl diisocyanate was added dropwise. Dimethylformamide solution, continue to keep stirring for 3h, heat up to 70°C, add dropwise N,N-dimethylformamide solution of dimethylolbutyric acid, keep stirring for 5h, cool down to 50°C, add triisopropanol dropwise N,N-dimethylformamide solution of amine and N,N-dimethylformamide solution of hydroquinone bishydroxyethyl ether, heat preservation and stirring for 7h, cool to room temperature, add water to settle, filter, ...

Embodiment 3

[0026] An abrasion-resistant polyurethane material, its raw materials include: polytetrahydrofuran ether diol, dimethyl biphenyl diisocyanate, dimethylol butyric acid, triisopropanolamine, hydroquinone dihydroxyethyl ether, nano Titanium dioxide, 3-isocyanatopropyltriethoxysilane, and stannous octoate;

[0027]Among them, in the preparation process of abrasion-resistant polyurethane, take the dried polytetrahydrofuran ether diol, pass nitrogen gas, heat up to 55 ° C, keep stirring for 57 minutes, and add N,N-dimethyl biphenyl diisocyanate dropwise. Dimethylformamide solution, continue to keep stirring for 2.3h, heat up to 78°C, add dropwise N,N-dimethylformamide solution of dimethylolbutyric acid, keep stirring for 3.5h, cool down to 57°C, add dropwise triiso N,N-dimethylformamide solution of propanolamine and N,N-dimethylformamide solution of hydroquinone dihydroxyethyl ether, keep stirring for 5.5h, cool to room temperature, add water to settle, filter , washed with water, ...

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PUM

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Abstract

The invention discloses a wear-corrosion-resistant polyurethane material comprising the raw materials: polytetrahydrofuran glycol, dimethyl-biphenyl diisocyanate, bis(hydroxymethyl)butyric acid, triisopropanolamine, hydroquinone bis(2-hydroxyethyl)ether, nano titanium dioxide, 3-isocyanate propyl triethoxy silane and stannous caprylate. A preparation process of the wear-corrosion-resistant polyurethane comprises the steps: taking dried polytetrahydrofuran glycol, heating up, adding a dimethyl-diphenyl diisocyanate solution drop by drop, carrying out heat preservation stirring, heating up, adding a bis(hydroxymethyl)butyric acid solution drop by drop, carrying out heat preservation stirring, cooling, adding a triisopropanolamine solution and a hydroquinone bis(2-hydroxyethyl)ether solution drop by drop, carrying out heat preservation stirring, and purifying to obtain an intermediate material; introducing nitrogen gas, taking an intermediate material solution, adding stannous octoate, heating up, adding a modified nano titanium dioxide solution drop by drop, carrying out heat preservation stirring, and purifying to obtain the wear-corrosion-resistant polyurethane material. The wear-corrosion-resistant polyurethane material has the advantages of good wear resistance, good corrosion resistance and high mechanical properties.

Description

technical field [0001] The invention relates to the technical field of polyurethane materials, in particular to an abrasion-resistant polyurethane material. Background technique [0002] Polyurethane elastomer has the characteristics of high strength, high elasticity and high elongation, and has excellent wear resistance, oil resistance, tear resistance, chemical resistance, good shock absorption performance, and a wide range of hardness adjustment. Widely used in many fields. [0003] However, the heat resistance of polyurethane elastomers is poor. Under high temperature conditions, the mechanical properties decrease significantly, resulting in the decrease of wear resistance and mechanical properties of the elastomers when they are used under dynamic and high temperature conditions. Changes, hardness, strength, and modulus properties all decrease, thus limiting the application of polyurethane elastomers. Contents of the invention [0004] Based on the technical problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/66C08G18/48C08G18/34C08G18/32C08K9/06C08K3/22
CPCC08G18/3215C08G18/3281C08G18/348C08G18/4854C08G18/6692C08G18/7685C08K3/22C08K9/06C08K2003/2241C08K2201/011
Inventor 龚文祥
Owner CHUZHOU GLOBAL POLYURETHANE TECH CO LTD
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