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Strong-stain-resistance polyurethane rubber

A polyurethane rubber and pollution-resistant technology, which is applied in the field of strong pollution-resistant polyurethane rubber, can solve the problems of low pollution resistance and cannot meet the increasing demand of the market, and achieve good compatibility, improve polarity, and improve aging resistance. Effect

Inactive Publication Date: 2018-12-21
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 synthetic polyurethane rubber currently on the market is generally not high in stain resistance, and cannot meet the increasing demand of the market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] A kind of strong anti-pollution polyurethane rubber, its raw material comprises by weight: 35 parts of natural rubber, 40 parts of polyurethane rubber, 5 parts of acetylene carbon black, 6 parts of basalt fiber, 1 part of chlorinated paraffin, 9 parts of modified corncob powder, 2 parts of hydroxyl silicone oil, 6 parts of vulcanizing agent, 1 part of vulcanization accelerator, 3 parts of stearic acid, 1.5 parts of mica powder, 5 parts of anti-aging agent, 5 parts of flame retardant, 4 parts of dibutyl phthalate.

Embodiment 2

[0016] A kind of strong anti-pollution polyurethane rubber, its raw material comprises by weight: 55 parts of natural rubber, 25 parts of polyurethane rubber, 8 parts of acetylene carbon black, 2 parts of basalt fiber, 3 parts of chlorinated paraffin, 5 parts of modified corn cob powder, 5 parts of hydroxyl silicone oil, 1 part of vulcanizing agent, 3 parts of vulcanization accelerator, 1 part of stearic acid, 3 parts of mica powder, 1.5 parts of anti-aging agent, 7 parts of flame retardant, 2 parts of dibutyl phthalate;

[0017] Wherein, the raw material of the polyurethane rubber includes modified isocyanate, and the preparation process of the modified isocyanate is as follows: add nano-titanium dioxide dispersion liquid to the isocyanate, mechanically stir, heat up, add polyethylene glycol monomethyl ether, pass through inert Gas, react under mechanical stirring to obtain modified isocyanate.

Embodiment 3

[0019] A kind of strong stain-resistant polyurethane rubber, its raw material comprises by weight: 40 parts of natural rubber, 30 parts of polyurethane rubber, 6 parts of acetylene carbon black, 3 parts of basalt fiber, 1.5 parts of chlorinated paraffin, 6 parts of modified corncob powder, 3 parts of hydroxyl silicone oil, 2 parts of vulcanizing agent, 1.5 parts of vulcanization accelerator, 1.5 parts of stearic acid, 2 parts of mica powder, 2 parts of antioxidant, 5.5 parts of flame retardant, 2.5 parts of dibutyl phthalate;

[0020] Wherein, the raw material of the polyurethane rubber includes modified isocyanate, and the preparation process of the modified isocyanate is as follows: add nano-titanium dioxide dispersion liquid to the isocyanate, mechanically stir for 20 minutes, heat up to 85°C, add polyethylene glycol monomethyl ether , feed inert gas, and react for 2.5h under mechanical stirring to obtain modified isocyanate.

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PUM

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Abstract

The invention discloses strong-stain-resistance polyurethane rubber. The strong-stain-resistance polyurethane rubber is prepared from the following raw materials in parts by weight: 35 to 55 parts ofnatural rubber, 25 to 40 parts of polyurethane rubber, 5 to 8 parts of acetylene carbon black, 2 to 6 parts of basalt fiber, 1 to 3 parts of chlorinated paraffin, 5 to 9 parts of modified maize cob meal, 2 to 5 parts of hydroxy silicone oil, 1 to 6 parts of a vulcanizing agent, 1 to 3 parts of a vulcanizing accelerator, 1 to 3 parts of stearic acid, 1.5 to 3 parts of mica powder, 1.5 to 5 parts ofan anti-ageing agent, 5 to 7 parts of a flame retardant and 2 to 4 parts of dibutyl phthalate. The rubber prepared by the invention has excellent stain resisting performance.

Description

technical field [0001] The invention relates to rubber, in particular to a strong stain-resistant polyurethane rubber. Background technique [0002] Polyurethane rubber is a series of elastomer materials containing more carbamate groups on the polymer main chain. It is actually polyurethane rubber, referred to as polyurethane rubber or polyurethane rubber or polyurethane elastomer. In addition to carbamate groups, the polymer chain also contains ester groups, ether groups, urea groups, aryl groups and aliphatic chains. It is usually formed by the reaction of oligomer polyol, polyisocyanate and chain extender. Polyurethane rubber forms different structures and varieties with different raw materials and proportions, reaction methods and conditions. [0003] However, the synthetic polyurethane rubber currently on the market is generally not high in stain resistance, and cannot meet the increasing demand of the market. Contents of the invention [0004] Based on the technic...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L75/04C08L83/04C08K13/04C08K7/10C08K5/09C08K5/12C08K3/04C08K3/22
CPCC08K2003/2241C08K2201/011C08L7/00C08L2201/08C08L2205/035C08L75/04C08L83/04C08K13/04C08K7/10C08K5/09C08K5/12C08K3/04C08K3/22
Inventor 龚文祥
Owner CHUZHOU GLOBAL POLYURETHANE TECH CO LTD
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