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EVM rubber for automobile oil return pipe and preparation method of EVM rubber
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A technology of oil return pipe and rubber material, which is applied in the field of automobile oil return pipe EVM rubber material and its preparation, to achieve excellent high temperature resistance
Active Publication Date: 2014-12-24
SHANGHAI RONGNAN TECH CO LTD +2
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Problems solved by technology
However, there is no report on the oil-resistant and high-temperature-resistant rubber material suitable for producing automobile oil return pipes prepared by using EVM rubber material.
Method used
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Embodiment 1
[0020] Example 1 Preparation of an EVM compound for an automobile oil return pipe (1)
[0021] Components: EVM700 HV raw rubber 40 parts, EVM500 HV raw rubber 60 parts, magnesiumoxide 1 part, calcium oxide 1 part, stearic acid 1 part, carbon black N550 50 parts, celite 499 30 parts, processing oil TP-95 8 1 part of anti-aging agent MB, 1 part of anti-aging agent 445, 3 parts of phenolic resin 2402, 5 parts of peroxide curing agent 14S-FL40B, 3 parts of vulcanization aid TAIC.
[0022] Preparation method: first mix EVM700 HV and EVM500 HV for 2 minutes, then add magnesium oxide, calcium oxide, stearic acid, antioxidant MB, antioxidant 445, phenolic resin 2402, carbon black N550, celite 499 and processing oil TP- 95, after mixing evenly, discharge glue, finally add peroxide curing agent 14S-FL40B, vulcanizing aid TAIC and mix again evenly.
Embodiment 2
[0023] Example 2 Preparation of EVM rubber compound for automobile oil return pipe (2)
[0025] Preparation method: First mix EVM700 HV and EVM500 HV for 1 minute, then add magnesium oxide, calcium oxide, stearic acid, antioxidant MB, antioxidant 445, phenolic resin 2402, carbon black N550, celite 499 and processing oil TP- 95, after mixing evenly, discharge glue, finally add peroxide curing agent 14S-FL40B, vulcanizing aid TAIC and mix again evenly.
Embodiment 3
[0026] Example 3 Preparation of EVM rubber compound for automobile oil return pipe (3)
[0027] Components: EVM700 HV raw rubber 40 parts, EVM500 HV raw rubber 60 parts, magnesium oxide 1 part, calcium oxide 3 parts, stearic acid 1 part, carbon black N550 70 parts, celite 499 30 parts, processing oil TP-95 15 1 part of anti-aging agent MB, 3 parts of anti-aging agent 445, 3 parts of phenolic resin 2402, 8 parts of peroxide curing agent 14S-FL40B, 3 parts of vulcanization aid TAIC.
[0028] Preparation method: first mix EVM700 HV and EVM500 HV for 2 minutes, then add magnesium oxide, calcium oxide, stearic acid, antioxidant MB, antioxidant 445, phenolic resin 2402, carbon black N550, celite 499 and processing oil TP- 95, after mixing evenly, discharge glue, finally add peroxide curing agent 14S-FL40B, vulcanizing aid TAIC and mix again evenly.
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Abstract
The invention relates to EVM rubber for an automobile oil return pipe. The EVM rubber is prepared from materials in parts by weight as follows: 40 parts of EVM700HV raw rubber, 60 parts of EVM500HV raw rubber, 1-3 parts of magnesiumoxide, 1-3 parts of calciumoxide, 1-2 parts of stearic acid, 50-70 parts of carbon black, 30-50 parts of filler, 8-15 parts of processing oil, 2-6 parts of an anti-aging agent, 3-5 parts of tackifying resin, 5-8 parts of a peroxide vulcanizing agent and 3-4 parts of a vulcanizing agent. The invention further provides a preparation method of the EVM rubber. The EVM rubber and the preparation method have the advantages as follows: the EVM rubber adopts both the EVM700HV rubber and the EVM500HV rubber, the certain preparation method is matched, and the prepared rubber is excellent in high temperature resistance, oil resistance and ozone resistance.
Description
technical field [0001] The invention relates to a rubber material for an oil return pipe, in particular to an EVM rubber material for an automobile oil return pipe and a preparation method thereof. Background technique [0002] EVM is a polymer material formed by the copolymerization of ethylene and vinyl acetate, referred to as ethylene-vinyl acetatecopolymer, also known as Yihuaping, after proper mixing of EVM vulcanizate, because of its excellent aging resistance It is known for its high resistance (maximum service temperature of 175°C), excellent weathering and ozone resistance, UV stability, low compression set and good processability. EVM is now found in many rubber products including cables, adhesives, and for the modification of thermoplastic elastomers. Due to more stringent high temperature requirements, it is increasingly used as seals and gaskets in the automotive industry, but it is less used for automotive oil return hoses that are both oil resistant and high...
Claims
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Application Information
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