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Automobile fuel hose cover rubber and preparation method thereof

A technology of automobile fuel hose and outer layer adhesive is applied in the field of automobile hose, which can solve the problems that the fuel resistance performance, fuel permeability, high temperature resistance and aging resistance of the outer layer adhesive of automobile fuel hose cannot meet the requirements of industrial application and the like. Achieve the effect of low fuel penetration rate and good fuel resistance performance

Active Publication Date: 2015-02-25
柳州市中橡科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, with the continuous improvement of industrial technology, the performance parameters such as fuel resistance, fuel permeability, high temperature resistance and aging resistance of the outer layer rubber of automobile fuel hose produced by the existing technology can no longer meet the requirements of its industrial application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The automobile fuel hose outer layer glue and its preparation method include the following preparation raw materials: 10.0kg of ethylene acrylate rubber; 2.0kg of quick extruded carbon black; 1.5kg of thermal carbon black; 0.8kg of talcum powder; 0.5kg of magnesium oxide; Fatty acid 0.5kg; polyamide 0.4kg; ethylenediamine 0.3kg; thiocyanate 0.08kg; calcium hydroxide 0.5kg;

[0018] Its preparation steps are as follows:

[0019] A. Put the above-mentioned raw materials into the internal mixer, synthesize rubber through the internal mixer, filter, and test to obtain rubber with a hardness of 70±5, a tensile strength of ≥10, and an elongation of ≥250%;

[0020] B. Put the rubber obtained in step A into an open mill, and extrude it for 15 minutes under the conditions of 0.6 MPa and 60° C.;

[0021] C. Put the rubber molded in step B into the vulcanization equipment at a pressure of 205Kgf / cm 2 , at a temperature of 160°C, carry out vulcanization treatment for 5 minutes; ...

Embodiment 2

[0025] The automobile fuel hose outer layer rubber and its preparation method include the following preparation materials: 10.0 kg of ethylene acrylate rubber; 3.0 kg of quick extruded carbon black; 1.0 kg of thermal carbon black; 1.2 kg of talcum powder; 0.1 kg of magnesium oxide; Fatty acid 0.8kg; polyamide 0.2kg; ethylenediamine 0.5kg; thiocyanate 0.05kg; calcium hydroxide 1.0kg;

[0026] Its preparation steps are as follows:

[0027] A. Put the above-mentioned raw materials into the internal mixer, synthesize rubber through the internal mixer, filter, and test to obtain rubber with a hardness of 70±5, a tensile strength of ≥10, and an elongation of ≥250%;

[0028] B. Put the rubber obtained in step A into an open mill, and extrude it for 20 minutes at a pressure of 0.8MPa and a temperature of 55°C;

[0029] C. Put the rubber formed in step B into the vulcanization equipment, under the pressure of 210Kgf / cm 2 , at a temperature of 150°C, vulcanize for 10 minutes;

[0030...

Embodiment 3

[0033] The automobile fuel hose outer layer glue and its preparation method include the following preparation materials: 10.0kg of ethylene acrylate rubber; 2.5kg of quick extruded carbon black; 1.2kg of thermal carbon black; 1.0kg of talcum powder; 0.4kg of magnesium oxide; Fatty acid 0.7kg; polyamide 0.3kg; ethylenediamine 0.4kg; thiocyanate 0.06kg; calcium hydroxide 0.8kg;

[0034] Its preparation steps are as follows:

[0035] A. Put the above-mentioned raw materials into the internal mixer, synthesize rubber through the internal mixer, filter, and test to obtain rubber with a hardness of 70±5, a tensile strength of ≥10, and an elongation of ≥250%;

[0036] B. Put the rubber obtained in step A into an open mill, and extrude it for 16 minutes under the conditions of 0.7 MPa and 58° C.;

[0037] C. Put the rubber formed in step B into the vulcanization equipment, under the pressure of 206Kgf / cm 2 , at a temperature of 155°C, carry out vulcanization treatment for 8 minutes;...

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Abstract

The invention discloses an automobile fuel hose cover rubber and a preparation method thereof, belonging to the technical field of automobile hoses. The automobile fuel hose cover rubber is prepared from the following raw materials in parts by weight: 100 parts of ethylene-acrylate rubber, 20-30 parts of quick-extrusion carbon black, 10-15 parts of cracking-process carbon black, 8-12 parts of talcum powder, 1-5 parts of magnesium oxide, 5-8 parts of stearic acid, 2-4 parts of polyamide, 3-5 parts of ethylenediamine, 0.5-0.8 part of trithiocyanuric acid and 5-10 parts of calcium hydroxide. Compared with the prior art, the automobile fuel hose cover rubber disclosed by the invention has the advantages of favorable high-temperature resistance, favorable aging resistance, favorable fuel resistance and low fuel permeability.

Description

technical field [0001] The invention relates to the technical field of automobile rubber hoses, in particular to an outer rubber of automobile fuel hoses and a preparation method thereof. Background technique [0002] Automotive fuel hose refers to the hose used for fuel transportation in automobiles. The hose is generally composed of inner rubber, middle rubber bonded to the inner rubber, fiber reinforced layer and outer rubber. Since the fuel vapor evaporated in the automobile fuel tank is transported to the carbon tank through the fuel hose and absorbed by activated carbon, each layer of the fuel hose must be made of rubber hose with good fuel resistance, low fuel permeability, high temperature resistance and aging resistance. [0003] However, with the continuous improvement of industrial technology, the performance parameters such as fuel resistance, fuel permeability, high temperature resistance and aging resistance of the outer layer rubber of automobile fuel hose pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L77/00C08K13/02C08K3/04C08K3/34C08K3/22C08K5/09
CPCC08L23/0869C08L2201/08C08L77/00C08K13/02C08K3/04C08K2003/222C08K5/09C08K5/17C08K2003/2206
Inventor 陈永亮
Owner 柳州市中橡科技有限公司
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