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Novel rubber for automobile exhaust pipe

A technology for automobile exhaust and rubber, which is applied in the field of rubber for new automobile exhaust pipe suspension rings. It can solve the problems of low strength of EPDM rubber, difficulty in research and development of exhaust pipe suspension ring performance, and influence on rubber strength, etc., to achieve low production costs. , Improve aging resistance, improve the effect of heat resistance

Inactive Publication Date: 2016-08-17
JIANGSU LUOSHI DAMPING MEMBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The strength of EPDM rubber is low, and the heat resistance of sulfur vulcanization can reach up to 125 degrees, and the heat resistance of peroxide vulcanization can only reach 150 degrees.
However, the limitation of rubber hardness greatly affects the improvement of rubber strength, which further makes it difficult to develop the performance of the exhaust pipe suspension ring.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The present embodiment novel automobile exhaust pipe suspension ring uses rubber, and this rubber is made of the raw material of following weight portion: 60 parts of oil-filled EPDM rubbers; 40 parts of non-oil-filled EPDM rubbers; 2 thiocyanuric acid 7 parts of benzimidazole antioxidant; 12 parts of tetraethylthiuram disulfide; 5-10 parts of N-330 carbon black; 10 parts of active zinc oxide; 1 part of paraffin; 3 parts of stearic acid; 2.5 parts of sulfur parts and 15 parts of paraffin oil.

Embodiment 2

[0015] The present embodiment novel automobile exhaust pipe suspension ring uses rubber, and this rubber is made of the raw material of following weight portion: 75 parts of oil-filled EPDM rubbers; 30 parts of non-oil-filled EPDM rubbers; 1 thiocyanuric acid 4 parts of dihydroquinoline antioxidants; 7 parts of 2-mercaptobenzimidazole; 5 parts of N-330 carbon black; 5 parts of active zinc oxide; 0.5 parts of paraffin; 1 part of stearic acid; 1.5 parts of sulfur compound and 10 parts of paraffin oil.

Embodiment 3

[0017] The present embodiment novel automobile exhaust pipe suspension ring uses rubber, and this rubber is made of the raw material of following weight parts: 68 parts of oil-filled EPDM rubbers; 35 parts of non-oil-filled EPDM rubbers; 1.5 parts of thiocyanate 6 parts of mixture of benzimidazole anti-aging agent and dihydroquinoline anti-aging agent; 10 parts of tetraethylthiuram disulfide and 2-thiol benzimidazole; 7.5 parts of N-330 carbon black; active oxidation 7.5 parts of zinc; 0.75 parts of paraffin; 2 parts of stearic acid; 1.75 parts of a mixture of sulfur and sulfur-containing compounds for rubber and 12 parts of paraffin oil.

[0018] Above-mentioned embodiment 1~3 automobile exhaust pipe suspension ring is used rubber preparation method, and concrete steps are as follows:

[0019] (1) Put oil-extended EPDM rubber and non-oil-extended EPDM rubber into the internal mixer, and masticate at 75°C-85°C for 25 minutes;

[0020] (2) After step (1) is finished, add anti-...

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PUM

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Abstract

The invention relates to novel rubber for an automobile exhaust pipe. The rubber is prepared from, by weight, 60-75 parts of oil-extended ethylene propylene diene monomer, 30-40 parts of non-oil-extended ethylene propylene diene monomer, 1-2 parts of trithiocyanuric acid, 4-7 parts of anti-aging agent, 7-12 parts of accelerant, 5-10 parts of N-330 carbon black, 5-10 parts of activated zinc oxide, 0.5-1 part of paraffin, 1-3 parts of stearic acid, 1.5-2.5 parts of vulcanizing agent and 10-15 parts of paraffin oil. The novel rubber for the automobile exhaust pipe has the advantages that by means of the synergistic effect of the raw materials, when the rubber is used for preparing an automobile exhaust pipe hanging ring, heat resistance of the automobile exhaust pipe hanging ring is effectively improved, and the anti-ageing performance of the automobile exhaust pipe hanging ring is also improved.

Description

technical field [0001] The invention relates to the technical field of rubber hose products for automobiles, in particular to a novel rubber for suspension rings of automobile exhaust pipes. Background technique [0002] In terms of the role of the automobile exhaust pipe on the automobile body, it plays the role of shock absorption and noise reduction, and prolongs the life of the exhaust muffler system. The main material of the exhaust pipe is stainless steel. For ordinary cars, because the exhaust gas of the car is under great pressure when it leaves the engine, the noise it produces may make people feel crazy. At this time, the main noise reduction function is the exhaust pipe of the car, and a muffler is installed inside it. , greatly reducing the noise of the car. The main function of the automobile exhaust pipe suspension ring is to fix the exhaust pipe to reduce the vibration of the exhaust pipe during movement and prevent the collision between the exhaust pipe and...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08L91/06C08K13/02C08K3/06C08K3/04C08K3/22C08K5/09
CPCC08L23/16C08L2201/08
Inventor 骆强
Owner JIANGSU LUOSHI DAMPING MEMBER CO LTD
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