Fluororubber and epichlorophdrin rubber formulation

A technology of chloroether rubber and fluororubber, which is applied in the field of fluororubber and fluororubber formulations, and can solve the problems of fuel oil penetration and poor ozone resistance in fuel hoses

Active Publication Date: 2007-12-05
TIANJIN PENGYI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is mainly to solve the problems of existing rubber hoses in terms of high temperature resistance, heat oil resistance, ozone resistance, and the requirements of fuel oil hoses for fuel penetration.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0016] Content by weight percentage

[0017] serial number

Component

Example 1

Example 2

Example 3

Example 4

Example 5

Example 6

1

Fluorine rubber

75

40

90

45

65

65

2

Thermal carbon black N990

20

56.5

5

50

15

18

3

2,5-Dimethyl-2,5-bis-hexane

2

0.5

3

2.5

10

5

4

triallyl cyanurate

0.5

2

1.5

2

5

10

5

carnauba wax

2.5

1

0.5

0.5

5

2

total

100

100

100

100

100

100

[0018] Chlorine ether middle layer and outer layer implementation:

[0019] Content by weight percentage

[0020] Preface

No

Component

Example 7

Example 8

Example 9

...

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PUM

PropertyMeasurementUnit
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Abstract

The present invention is one kind of rubber pipe comprising one inner layer of fluororubber and one middle layer and one outer layer of chlorohydrin rubber. The fluororubber consists of polyfluoroprene, thermal black N990, 2, 5-dimethyl-2, 5-dihexane, triallyl cyanourate and carnauba wax; and the chlorohydrin rubber consists of chlorohydrin rubber C, chlorohydrin rubber H, black N550, anti-ager NBC, processing aid R-300, stearic acid, plasticizer RS-107, red lead, ethylene thiourea NA-22, plasticizer W-305ELS and scorch retarder CTP-80. The rubber pipe with one inner layer of fluororubber and one middle layer and one outer layer of chlorohydrin rubber has high heat resistance, high oil tolerance, high ozone tolerance and high fuel oil osmosis resistance.

Description

technical field [0001] The invention relates to a rubber technical formula, in particular to a formula of fluorine rubber and epichlorohydrin rubber. Background technique [0002] The fuel hose system for automobiles in my country generally uses nitrile rubber / skeleton layer / neoprene rubber. This material has excellent oil resistance, aging resistance and wear resistance, low air permeability and high cohesion, but poor ozone resistance. Although nitrile rubber can be used continuously at 120°C, and has excellent oil resistance and low price, the fuel hose has to be in contact with various oils for a long time during use, and the oil can penetrate into the rubber to cause swelling, resulting in Molecules diffuse with each other, thereby changing the network structure of vulcanized rubber, resulting in a decrease in the strength and other mechanical properties of the rubber. And with the development of the automobile industry and the enhancement of environmental protection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L101/06C08K5/405B32B27/00C08K3/04C08L91/06C08K5/09C08K5/29
Inventor 张洪起张学震孙佩祝李风海
Owner TIANJIN PENGYI GRP CO LTD
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