Novel heat-resistant rubber part

A technology of heat-resistant rubber and parts, which is applied in the direction of building components, building insulation materials, construction, etc., can solve the problems of poor heat-resistant aging performance, breaking strength and elongation at break of rubber, etc., to improve heat aging performance, The effect of extending the service life

Inactive Publication Date: 2013-03-27
XIAN ZHITAI RUBBER & PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The heat-resistant rubber parts produced by the existing formula significantly reduce the tensile breaking strength and elongation at break of the rubber at high temperature, which makes the heat-resistant aging performance of the rubber poor

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The specific production steps are as follows:

[0024] Rubber production:

[0025] ⑴ Weigh various ingredients according to the specific formula ratio; according to the components, 100 parts of 1# natural rubber, 2 parts of TT accelerator (Chinese name: tetramethylthiuram disulfide, molecular formula: C6H12N2S4), 4 parts of zinc oxide, 4010 anti-aging agent (Chinese name: N-phenyl-N'-cyclohexyl-p-phenylenediamine, molecular formula: C15H18N2) 1 part, 1 part stearic acid, 7 parts pitch, 15 parts spray carbon black, 50 parts calcium carbonate, Anti-aging agent BLE (Chinese name: high temperature condensation product of acetone and diphenylamine 4-aminobiphenyl, molecular formula: C15H15N) 2.7 parts, barium sulfate 31 parts, o-dibutyl ester 3 parts. The weight unit of each part in the component is determined according to production needs, such as one kilogram per part.

[0026] (2) Take 100 parts of 1# natural rubber and add it to the rubber mixing machine. After mixi...

Embodiment 2

[0034] The production process of embodiment 2 is identical with embodiment 1, and difference is that the ratio of rubber material components is different, and the rubber material composition of embodiment 2 is calculated as follows by component: 1# natural rubber 110 parts, accelerator TT (Chinese name: Tetramethylthiuram disulfide, molecular formula: C6H12N2S4) 3 parts, zinc oxide 5 parts, antioxidant 4010 (Chinese name: N-phenyl-N'-cyclohexyl-p-phenylenediamine, molecular formula: C15H18N2) 1.5 parts, 2 parts of stearic acid, 8 parts of asphalt, 20 parts of spray carbon black, 55 parts of calcium carbonate, 2.7 parts of anti-aging agent BLE (Chinese name: high-temperature condensation product of acetone and diphenylamine 4-aminobiphenyl, molecular formula: C15H15N), barium sulfate 31 parts, 4 parts of o-dibutyl ester.

Embodiment 3

[0035] The production process of embodiment 3 is identical with embodiment 1, and difference is that rubber material component ratio is different, and the rubber material composition of embodiment 3 is calculated as follows by component: 1# natural rubber 120 parts, accelerator TT (Chinese name: Tetramethylthiuram disulfide, molecular formula: C6H12N2S4) 4 parts, zinc oxide 6 parts, antioxidant 4010 (Chinese name: N-phenyl-N'-cyclohexyl-p-phenylenediamine, molecular formula: C15H18N2) 2 parts, 3 parts of stearic acid, 9 parts of asphalt, 25 parts of spray carbon black, 60 parts of calcium carbonate, 2.7 parts of anti-aging agent BLE (Chinese name: high temperature condensation product of acetone and diphenylamine 4-aminobiphenyl, molecular formula: C15H15N), barium sulfate 31 parts, 5 parts of o-dibutyl ester.

[0036] Performance comparison of three kinds of embodiments

[0037]

[0038] The current market product comparison of embodiment 2 formula and known technology

...

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Abstract

The invention relates to a novel heat-resistant rubber part. The novel heat-resistant rubber part is characterized by comprising the following components in parts: 100-120 parts of No.1 natural rubber, 2-4 parts of accelerant TT, i.e. tetramethyl thiuram disulfide, 4-6 parts of zinc oxide, 1-2 parts of antiager 4010, i.e. N-benzyl-N'-cyclohexyl p-phenylenediamine, 1-3 parts of stearic acid, 7-9 parts of pitch, 15-25 parts of spraying carbon black, 50-60 parts of calcium carbonate, 2.7 parts of antiager BLE (the Chinese name is an acetone and diphenylamine high-temperature condensation compound 4-aminobiphenyl, and the molecular formula is C15H15N), 31 parts of barium sulfate and 3-5 parts of ortho-dibutyl ester. The novel heat-resistant rubber part has the advantages that the heat ageing performance of the rubber part is increased by increasing a heat-proof aging assistant in rubber, and the service life is prolonged.

Description

technical field [0001] The invention relates to the field of rubber, in particular to a novel heat-resistant rubber part. Background technique [0002] Heat-resistant rubber parts are widely used in aviation, water vapor, alcohol, glycerin mixture environment, the temperature is from -50 to 150 °C, 100 °C in the air, and 130 °C for intermittent use. The heat-resistant rubber parts produced by the existing formula significantly reduce the tensile breaking strength and elongation at break of the rubber at high temperature, which makes the heat-aging resistance of the rubber poor. Contents of the invention [0003] The purpose of this invention is to provide a new type of heat-resistant rubber parts, which improves the heat-aging resistance of rubber and prolongs the service life by changing the ratio of rubber. [0004] The technical solution of the present invention is to provide a new type of heat-resistant rubber parts, its rubber material proportioning components are as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L95/00C08K13/02C08K5/40C08K3/22C08K5/18C08K5/09C08K3/04C08K3/26C08K3/30
Inventor 党保军
Owner XIAN ZHITAI RUBBER & PLASTIC IND
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