Fireproof rubber and preparation method therefor

A technology of rubber and neoprene, which is applied in the field of rubber, can solve the problems of restricting the application prospect of neoprene and the difficulty of long-term use of neoprene

Inactive Publication Date: 2015-11-11
WUHU FENGXUE RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The decomposition temperature of chloroprene rubber is 230-260 °C, the short-term temperature resistance is 120-150 °C, and it can be used for a long time at 80-100 °C. It can be seen that although neoprene rubber has certain fire resistance, it can be used at temperatures exceeding 100 °C. Under environmental conditions, neoprene is difficult to use for a long time, which limits the application prospects of neoprene

Method used

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Examples

Experimental program
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preparation example Construction

[0016] The present invention also provides a preparation method of fireproof rubber, comprising:

[0017] 1) calcining after mixing lotus leaf and vermiculite to obtain additive;

[0018] 2) Mix neoprene, zinc sulfate, calcium carbonate, mica powder, stearic acid, N-tert-butyl-ethylbenzothiazole sulfenamide, 2-thiol imidazoline, hydroxyl silicone oil and additives, melt, Fireproof rubber is obtained after cooling.

[0019] In step 2) of the above-mentioned preparation method, the amount of each component can be selected in a wide range, but in order to make the fireproof rubber have more excellent mechanical properties and fireproof performance, preferably, relative to 100 parts by weight of chlorine For butyl rubber, the consumption of zinc sulfate is 7-10 parts by weight, the consumption of calcium carbonate is 5-10 parts by weight, the consumption of mica powder is 1-4 parts by weight, the consumption of stearic acid is 15-20 parts by weight, N- The consumption of tert-bu...

Embodiment 1

[0025] 1) Mix lotus leaf and vermiculite (weight ratio: 1:0.5) and calcinate at 400°C for 3 hours to prepare the additive;

[0026] 2) Neoprene, zinc sulfate, calcium carbonate, mica powder, stearic acid, N-tert-butyl-ethylbenzothiazole sulfenamide, 2-thiol imidazoline, hydroxyl silicone oil and additives (weight ratio of 100: 8: 8: 3: 18: 2.5: 3: 10: 3.5) mixed, melted at 190°C for 40 minutes and then cooled to obtain fireproof rubber A1.

Embodiment 2

[0028] 1) Mix lotus leaf and vermiculite (weight ratio: 1:0.3) and calcinate at 370°C for 2 hours to prepare the additive;

[0029] 2) Neoprene, zinc sulfate, calcium carbonate, mica powder, stearic acid, N-tert-butyl-ethylbenzothiazole sulfenamide, 2-thiol imidazoline, hydroxyl silicone oil and additives (weight ratio of 100: 7: 5: 1: 15: 1.5: 2: 8: 3) mixed, melted at 180°C for 30 minutes and then cooled to obtain fireproof rubber A2.

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PUM

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Abstract

The invention discloses fireproof rubber and a preparation method therefor. The fireproof rubber contains neoprene, zinc sulfate, calcium carbonate, mica powder, stearic acid, N-tert butyl-ethyl benzothiazole sulfenamide, 2-thiol imidazoline, hydroxy silicone oil and an additive, wherein the additive is prepared through mixing lotus leaves and vermiculite and then calcining the mixture. The fireproof rubber can be used for a long time in environment above 200 DEG C; and the preparation method has the advantages that the steps are simple and the raw materials are easily obtained.

Description

technical field [0001] The invention relates to rubber, in particular to a fireproof rubber and a preparation method thereof. Background technique [0002] Neoprene is a synthetic rubber produced by α-polymerization of chloroprene (ie 2-chloro-1,3-butadiene) as the main raw material. It is widely used in anti-weather products, viscose soles, coatings and rocket fuel. Neoprene has good physical and mechanical properties, oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, acid and alkali resistance and chemical reagent corrosion resistance. [0003] The decomposition temperature of chloroprene rubber is 230-260 °C, the short-term temperature resistance is 120-150 °C, and it can be used for a long time at 80-100 °C. It can be seen that although neoprene rubber has certain fire resistance, it can be used at temperatures exceeding 100 °C. In the environment, neoprene is difficult to use for a long time, which limits the application prospec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L11/00C08L83/06C08K13/06C08K3/30C08K3/26C08K3/34C08K5/09C08K5/47C08K5/37
Inventor 苏福男胡银
Owner WUHU FENGXUE RUBBER
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