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Rubber composition used for production of automobile engine coolant hose inner and outer rubber layers and production method thereof

A rubber composition and automobile engine technology, which is applied in the field of rubber composition for manufacturing the inner and outer rubber layers of automobile engine coolant hoses, can solve the problems of high cost of engine coolant hoses, achieve improved oxidation resistance and degradation performance, and good long-term durability Coolant performance and the effect of reducing power consumption

Inactive Publication Date: 2015-11-04
QINGDAO SUNSONG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the problem of high cost of the current engine coolant hose, and proposes a new rubber composition and its preparation method

Method used

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  • Rubber composition used for production of automobile engine coolant hose inner and outer rubber layers and production method thereof
  • Rubber composition used for production of automobile engine coolant hose inner and outer rubber layers and production method thereof
  • Rubber composition used for production of automobile engine coolant hose inner and outer rubber layers and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The rubber composition used to manufacture the inner and outer rubber layers of the automobile engine coolant hose, the raw material components and their parts by mass are as follows:

[0023]

[0024] Producing familiar rubber composition, carry out according to the following steps:

[0025] EPDM rubber with an ethylene content of 59%, activated magnesia, polyethylene glycol PEG-6000, and anti-aging agent RD were mixed under pressure, and then petroleum vinegar 2280, aluminum silicate hydrate, and quick-pressed Add carbon black N550 and semi-reinforcing carbon black N774 for mixing, and finally add triallyl isocyanurate and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane for Mixing, when the temperature reaches 120°C-135°C, discharge the mixed rubber material to the open mill and mix for 2-5 minutes, and then press it on the tablet machine to form a strip-shaped rubber combination suitable for processing thing.

[0026] The rubber composition vulcanizate obtained abo...

Embodiment 2

[0029] The rubber composition used to manufacture the inner and outer rubber layers of the automobile engine coolant hose, the raw material components and their parts by mass are as follows:

[0030]

[0031]

[0032] Producing familiar rubber composition, carry out according to the following steps:

[0033] EPDM rubber with an ethylene content of 65%, activated magnesium oxide, polyethylene glycol PEG-6000, and anti-aging agent NBC were mixed under pressure, and then petroleum vinegar 2280, aluminum silicate hydrate, and quick-pressed Add carbon black N550 for mixing, and finally add triallyl isocyanurate and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane for mixing, when the temperature reaches 120 When the temperature is ℃~135℃, the mixed rubber material is discharged to the open mill and mixed for 2~5 minutes, and then pressed on the tablet machine to form the rubber composition suitable for processing.

[0034] The rubber composition vulcanizate obtained above is tak...

Embodiment 3

[0038] The rubber composition used to manufacture the inner and outer rubber layers of the automobile engine coolant hose, the raw material components and their parts by mass are as follows:

[0039]

[0040] Producing familiar rubber composition, carry out according to the following steps:

[0041] EPDM rubber with an ethylene content of 71%, activated magnesia, polyethylene glycol PEG-6000, anti-aging agent RD, and anti-aging agent NBC were mixed under pressure, and then petroleum vinegar 2280, aluminum silicate hydrate , semi-reinforcing carbon black N774 was added for mixing, and finally triallyl isocyanurate and 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane were added for mixing, When the temperature reaches 120° C. to 135° C., discharge the mixed rubber material to the open mill for back-gluing and kneading for 2 to 5 minutes, and then press it on a tablet machine to form the rubber composition suitable for processing in the shape of a rubber strip.

[0042] The rubbe...

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Abstract

A rubber composition used for production of automobile engine coolant hose inner and outer rubber layers comprises the following feedstock components: EPDM rubber, a cross-linking active agent, a lubricant, an antioxidant, carbon black, clay, a plasticizer, crosslinking aid TAIC, and a peroxide crosslinking agent. The rubber composition used for production of the automobile engine coolant hose inner and outer rubber layers uses the EPDM rubber, the crosslinking aid TAIC and the peroxide crosslinking agent TAIC 101-50D-PD (namely, 2,5 dimethyl-2,5-bis (t-butylperoxy) hexane) for combination to improve optimal thermal and chemical stability, meanwhile by adding of the cross-linking active agent magnesium oxide as an acid-acceptor, the peroxide invalidation can be prevented, and rubber products are given better 150 DEG C high temperature resistance and long-term coolant resistance by the peroxide vulcanizing way.

Description

technical field [0001] The invention relates to a rubber composition, in particular to a rubber composition used for manufacturing an inner and outer rubber layer of an automobile engine coolant hose and a production method thereof. Background technique [0002] The working temperature range of engine coolant hoses in automobiles is -40°C to +150°C, and its internal fluid is a coolant composed of ethylene glycol, water and additives, so the rubber composition of the inner rubber layer of the hose must withstand high temperatures of 150°C. And long-term resistance to coolant. [0003] At present, ethylene propylene diene monomer (EPDM) is considered to be an ideal material for making rubber hoses in automobile cooling systems, but most of this material depends on imports and is expensive, and the current hose production methods are EPDM and rubber hoses. The use of corresponding additives is relatively large, which makes the production cost of engine coolant hoses relatively...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L71/08C08L91/06C08K13/02C08K3/04C08K3/34C08K3/22C08K5/14C08K5/3492C08K5/39
CPCC08L23/16C08L2201/08C08L2203/18C08L2205/03
Inventor 李斌黄英李弘
Owner QINGDAO SUNSONG CO LTD
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