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Methanol gasoline-resistant rubber material

A rubber material, methanol-resistant technology, applied in engine seals, hoses, mechanical equipment, etc., can solve the problem that fuel-resistant rubber sealing materials are difficult to reuse, and achieve the effect of good methanol-gasoline swelling resistance

Inactive Publication Date: 2012-02-01
中国化工集团曙光橡胶工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the diversification of automotive fuels, especially in methanol-gasoline mixed fuel systems, traditional fuel-resistant rubber sealing materials are difficult to apply

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific example 1

[0014] Viton G902 100

[0015] MgO 10

[0016] CaO 5

[0017] palm wax 2

[0018] N990 20

[0019] Double 2, 5 1.5

[0020] TAIC 4

[0021] Its physical properties and methanol resistance are as follows:

[0022] Hardness (Shore A) / degree 73

[0023] Tensile strength / Mpa 18.3

[0024] Elongation at break / % 250

[0025] Compression set / % (200℃×70h) 32

[0026] Heat aging resistance (275℃×72h):

[0027] Tensile strength change rate / % -15

[0028] Change rate of elongation at break / % +16

[0029] Methanol resistance volume change / % (40℃×70h) +3.8

[0030] Methanol resistance volume change / % (25℃×7d) +3.5

specific example 2

[0032] Viton VTR-4590 100

[0033] PbO 10

[0034] MgO 12

[0035] CaO 5

[0036] Fluorine wax 2

[0037] CaF 20

[0038] 3# vulcanizing agent 1.5

[0039] TAIC 3.5

[0040] Its physical properties and methanol resistance are as follows:

[0041] Hardness (Shore A) / degree 76

[0042] Tensile strength / Mpa 16.8

[0043] Elongation at break / % 180

[0044] Compression set / % (200℃×70h) 30

[0045] Heat aging resistance (275℃×72h):

[0046] Tensile strength change rate / % -13

[0047] Change rate of elongation at break / % +14

[0048] Methanol resistance volume change / % (40℃×70h) +3.0

[0049] Methanol resistance volume change / % (25℃×7d) +3.3

specific example 3

[0051] Viton FKM 5362 100

[0052] MgO 10

[0053] CaO 5

[0054] MT carbon black 15

[0055] Polyisobutylene 5

[0056] BP 1.5

[0057] TAIC 4

[0058] Its physical properties and methanol resistance are as follows:

[0059] Hardness (Shore A) / degree 74

[0060] Tensile strength / Mpa 17.5

[0061] Elongation at break / % 280

[0062] Compression set / % (200℃×70h) 30

[0063] Heat aging resistance (275℃×72h):

[0064] Tensile strength change rate / % -12

[0065] Change rate of elongation at break / % +15

[0066] Methanol resistance volume change / % (40℃×70h) +2.8

[0067] Methanol resistance volume change / % (25℃×7d) +3.2

[0068] The preparation process of each of the above-mentioned embodiments is the same, according to the ratio of raw materials, the mixed rubber is produced by mixing in an internal mixer, and the mixed rubber is extruded by an extruder to make a tread semi-finished product.

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Abstract

The invention provides a methanol gasoline-resistant rubber material. The methanol gasoline resistant swelling capacity of the rubber material is further enhanced on the premise of satisfying the comprehensive performance of rubber. The rubber material is prepared from various materials such as novel fluorine rubber, an acid absorbing agent, a reinforcing filler, a vulcanizing agent, an accelerant, a plasticizing agent and the like. The rubber material specifically comprises the following components in parts by weight: 100 parts of ternary polymerized fluorine rubber (FKM), 5-20 parts of acid absorbing agent, 0.5-5 parts of vulcanizing agent accelerant, 5-80 parts of reinforcing filler, 0-10 parts of plasticizing agent and 1-5 parts of vulcanizing agent. The rubber material has excellent methanol gasoline resistance. An O-shaped sealing ring and a rubber pipe for a fuel system of a vehicle made of the rubber material have high methanol gasoline resistant swelling capacity.

Description

technical field [0001] The invention belongs to the field of rubber materials, in particular to a rubber material resistant to methanol gasoline. Background technique [0002] With the reduction of petroleum resources, the consumption of gasoline continues to increase. In order to alleviate the increasing oil crisis, it is urgent to find and develop alternative fuels with low pollution and abundant reserves. Compared with gasoline and ethanol gasoline, methanol fuel burns more completely in automobile engines, has higher benefits, and has less pollution. It is a fuel with excellent performance. At the same time, methanol is rich in sources and can be produced from raw materials such as coal, natural gas, and wood. Adding a certain proportion of methanol to gasoline can save energy and reduce pollution. In addition, it can also alleviate the contradiction of insufficient oil supply in oil-poor areas. Therefore, the development of methanol gasoline is the future direction of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/12C08L27/16C08L27/20C08L27/18C08K13/02F16J15/00F16L11/04
Inventor 周胜
Owner 中国化工集团曙光橡胶工业研究设计院有限公司
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