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Fluororubber special for automobile fuel hose and preparation method thereof

A technology of fluororubber and fuel oil, which is applied in the field of fluororubber for automobile fuel hoses and its preparation, which can solve the problems of fuel hose aging, reduced service life, hidden safety hazards, etc., and achieves increased service life, good fluidity, and guaranteed use safe effect

Inactive Publication Date: 2014-11-12
蔡德扬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the unreasonable formula of fluorine rubber for automobile fuel hoses will cause the fuel hoses to age and break, reducing the service life and causing safety hazards

Method used

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  • Fluororubber special for automobile fuel hose and preparation method thereof
  • Fluororubber special for automobile fuel hose and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A preparation method of fluororubber specially used for automobile fuel hose, the preparation steps are as follows: 100 parts of fluororubber raw material (1DAL-ELG-343), 5 parts of activated magnesium oxide, 5 parts of calcium hydroxide, 0.3 part of calcium oxide, N990 20.2 parts of carbon black, 3 parts of vulcanizing agent N,N-secondary cinnamyl-1,6-hexanediamine, 28181.2 parts of release agent, 2 parts of Brazilian wax were mixed and formed, the mixing temperature was 155°C, and the pressure was 12KN, the rotational speed of the kneading internal mixer is 50r / min, and the mixing time is 0.8h.

Embodiment 2

[0019] A preparation method of fluororubber specially used for automobile fuel hoses. The preparation steps are as follows: 110 parts of fluororubber raw material (1DAL-ELG-343), 8 parts of activated magnesium oxide, 8 parts of calcium hydroxide, 0.6 part of calcium oxide, and N990 23 parts of carbon black, 4 parts of vulcanizing agent N,N-secondary cinnamyl-1,6-hexanediamine, 28181.5 parts of release agent, 3 parts of Brazilian wax were mixed and formed, the mixing temperature was 160°C, and the pressure was 10KN, the rotational speed of the kneading internal mixer is 55r / min, and the mixing time is 1h.

Embodiment 3

[0021] A preparation method of fluororubber for automobile fuel hose, the preparation steps are as follows: 105 parts of fluororubber raw material (1DAL-ELG-343), 6 parts of activated magnesium oxide, 7 parts of calcium hydroxide, 0.2 part of calcium oxide, N990 19 parts of carbon black, 3.2 parts of vulcanizing agent N, N-secondary cinnamyl-1,6-hexanediamine, 28181.5 parts of mold release agent, 1.3 parts of Brazilian wax were mixed and formed, the mixing temperature was 155 ° C, and the pressure was 12KN, the rotational speed of the kneading internal mixer is 50r / min, and the mixing time is 0.8h.

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PUM

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Abstract

The invention aims to overcome defects in the prior art, and provides fluororubber special for an automobile fuel hose and a preparation method of the fluororubber. The fluororubber comprises, by weight percentage, 80-120 parts of fluororubber raw materials, 2-10 parts of active magnesium oxide, 3-10 parts of calcium hydroxide, 0.1-3 parts of calcium oxide, 15-25 parts of N990 carbon black, 2-8 parts of vulcanizing agents, 0.3-4 parts of release agents 2818 and 0.5-5 parts of brazil wax. The fluororubber special for the automobile fuel hose is not prone to aging and breaking, largely prolongs service life and guarantees use safety.

Description

technical field [0001] The invention relates to a special fluororubber for automobile fuel hoses and a preparation method thereof, belonging to the technical field of rubber. Background technique [0002] With the vigorous development of the automobile industry, the rubber industry has brought unprecedented development. The automobile industry has made great achievements in engine fuel hoses, refueling hoses, fuel pumps, air-conditioning O-rings, and injection devices, power pistons, valve stems, crankshafts, The sealing materials of air-conditioning compressors and other aspects need to be applied to rubber products. People have put forward more requirements for various performances of automobiles, and therefore have higher requirements for rubber properties such as oil resistance, heat resistance, and various chemical corrosion resistance. In recent years, research on the manufacture of oil-resistant and high-temperature-resistant rubber has become an important topic in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08K13/02C08K3/22C08K3/04B29B7/00
Inventor 蔡德扬杨士军张宇
Owner 蔡德扬
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