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Heat-resisting oil-resisting rubber material for automotive pipes

A technology of oil-resistant rubber and pipe fittings, applied in the field of rubber, can solve the problems of poor heat resistance and oil resistance, waste of automotive rubber pipe fittings, cracked and sticky surfaces, etc., to improve compatibility, eliminate gaps, and compress permanent deformation small effect

Inactive Publication Date: 2014-10-08
安徽宁国尚鼎橡塑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among the many synthetic rubbers, nitrile rubber is one of the best, and it is also an important material for making rubber tubes, but the fly in the ointment is that nitrile rubber has excellent mechanical strength, oil resistance, solvent resistance, acid resistance, alkali resistance and steam resistance. There are certain deficiencies in the field. The heat resistance and oil resistance of rubber tubes on the existing market are generally poor. Using them at high temperatures will easily lead to premature aging, cracking and stickiness on the surface, and the surface will fall off for a long time and lose function, leading to the scrapping of automotive rubber pipe fittings, wasting resources and increasing costs

Method used

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  • Heat-resisting oil-resisting rubber material for automotive pipes

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Embodiment 1

[0035] The heat-resistant and oil-resistant rubber material for automobile pipe fittings of the present invention, its preparation comprises the following steps:

[0036] S1, take each raw material by the weight and number ratio of embodiment 1 in table 2;

[0037] S2. Turn on the open mill, raise the temperature to 31°C, set the roller distance to 0.4mm, add the NRB26 nitrile rubber, NRB18 nitrile rubber, and shared rubber weighed in S1 to the open mill at the same time, and masticate for 19 minutes and then row Glue, tamping, pressing, tableting, cooling to room temperature, and then park for 2.5 hours to obtain a plasticized rubber;

[0038] S3. Raise the temperature of the mill to 35°C, adjust the roller distance to 0.6 mm, add the primary masticated rubber obtained in S2, and after masticating for 14 minutes, discharge the rubber, pound, compress, release, cool to room temperature, and park for 3.3 h to obtain secondary plasticizing rubber;

[0039] S4, raise the temper...

Embodiment 2

[0042] The heat-resistant and oil-resistant rubber material for automobile pipe fittings of the present invention, its preparation comprises the following steps:

[0043] S1, take each raw material by the weight and number ratio of embodiment 2 in table 2;

[0044] S2. Turn on the open mill, raise the temperature to 35°C, set the roller distance to 0.7 mm, add the NRB26 nitrile rubber, NRB18 nitrile rubber, and common rubber weighed in S1 to the open mill at the same time, and masticate for 17 minutes and then row Glue, tamping, pressing, tableting, cooling to room temperature, and then park for 2.9 hours to obtain a plasticized rubber;

[0045] S3. Raise the temperature of the mill to 39°C, adjust the roller distance to 0.8 mm, add the primary masticated rubber obtained in S2, and after masticating for 13 minutes, discharge, pound, tablet, and then cool to room temperature and park for 3.8 h to obtain secondary plasticizing rubber;

[0046] S4, raise the temperature of the ...

Embodiment 3

[0049] The heat-resistant and oil-resistant rubber material for automobile pipe fittings of the present invention, its preparation comprises the following steps:

[0050] S1, take each raw material by the weight and number ratio of embodiment 3 in table 2;

[0051] S2. Turn on the open mill, raise the temperature to 33°C, set the roller distance to 0.6mm, add the NRB26 nitrile rubber, NRB18 nitrile rubber, and common rubber weighed in S1 to the open mill at the same time, and masticate for 15 minutes and then row Glue, tamping, pressing, tableting, cooling to room temperature, and then park for 2.2 hours to obtain a plasticized rubber;

[0052] S3. Raise the temperature of the mill to 37°C, adjust the roller distance to 0.9 mm, add the primary masticated rubber obtained in S2, and after masticating for 11 minutes, discharge, pound, tablet, and then stop for 3.5 minutes after cooling to room temperature. h gets two.

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Abstract

The invention discloses a heat-resisting oil-resisting rubber material for automotive pipes. The rubber material is prepared from the following raw materials in parts by weight: 50-65 parts of NRB26 nitrile rubber, 20-25 parts of NRB18 nitrile rubber, 2-10 parts of common rubber, 18-20 parts of white carbon black, 0-1 part of aluminium oxide, 8-10 parts of nanometer talcum powder, 2-5 parts of vulcanizing agent, 0.5-1.2 parts of zinc oxide, 1-3 parts of tricresyl phosphate, 0.5-2 parts of oxidized polyethylene, 2-3 parts of accelerant TMDT, 2-5 parts of antiager, 0.2-1.2 parts of accelerant Na-22, 0.2-0.5 parts of epoxy linseed oil, 0.2-0.5 parts of acetyl triethyl citrate and 1.0-1.5 parts of microcrystalline wax. The rubber material disclosed by the invention has excellent mechanical strength, heat resistance and oil resistance and is suitable for preparing automotive rubber pipes with good comprehensive properties.

Description

technical field [0001] The invention relates to the technical field of rubber, in particular to a heat-resistant and oil-resistant rubber material for automobile pipe fittings. Background technique [0002] The automobile industry is a pillar industry of the national economy. The rapid development of the automobile industry in recent years will bring unprecedented opportunities to the rubber industry. At the same time, it has put forward higher requirements for rubber products and new materials for automobiles. Great challenge. The synthetic rubber industry in the modern world is characterized by intelligent design and synthesis, and efficient and clean production. While continuously improving product quality and optimizing production technology, we pay more attention to the modification of existing synthetic rubber, so that it will continue to develop in the direction of specialization and high performance. Rubber tube is an important component of rubber products. It is c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L9/00C08L9/06C08K13/06C08K3/36C08K3/22C08K3/34C08K5/521C08K5/11
Inventor 杨存俊
Owner 安徽宁国尚鼎橡塑制品有限公司
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