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Automobile oil sump sealing gasket rubber material and preparation method thereof

A technology of rubber material and oil pan, applied in the direction of mechanical equipment, engine lubrication, engine components, etc., can solve the problem of not meeting the sealing requirements of the oil pan, harsh oil pan gasket, higher high temperature resistance and low pressure change requirements, etc. problems, to achieve excellent anti-aging and low-pressure deformation performance, good hardness, and improve the effect of heat resistance and oil resistance

Inactive Publication Date: 2018-01-12
QIDONG YONGXING RUBBER PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the improvement of automobile level, the oil pan gasket has higher requirements for high temperature resistance and low pressure change. The oil pan gasket material prepared by traditional formula can no longer meet the sealing requirements of the oil pan. more stringent requirements

Method used

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  • Automobile oil sump sealing gasket rubber material and preparation method thereof
  • Automobile oil sump sealing gasket rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A gasket rubber material for an automobile oil pan, the raw materials of which include by weight:

[0024] 100 parts of nitrile rubber

[0025] Zinc oxide 6 parts

[0026] 2 parts stearic acid

[0027] 1 part of 2,24-trimethyl-1,2-dihydroquinoline polymer

[0028] 1.5 parts of N-1,3-dimethylbutyl-N'-phenyl-p-phenylenediamine

[0029] Spray carbon black 80 parts

[0030] Dioctyl phthalate 5 parts

[0031] Dicumyl peroxide 1.5 parts

[0032] 2-mercaptobenzothiazole 2 parts

[0033] 1 part tetramethylthiuram disulfide

[0034] 0.2 parts of sulfur.

[0035] A preparation method of a gasket rubber material for an automobile oil pan, comprising the steps of:

[0036] a. One-stage mixing: Put nitrile rubber in an internal mixer and knead for 65s, then add zinc oxide, stearic acid, 2,24-trimethyl-1,2-dihydroquinoline polymer, N- 1,3-Dimethylbutyl-N'-phenyl-p-phenylenediamine, mixed to 85°C, then added spray carbon black and dioctyl phthalate, mixed to 110°C, at 110°C-...

Embodiment 2

[0040] A gasket rubber material for an automobile oil pan, the raw materials of which include by weight:

[0041] 100 parts of nitrile rubber

[0042] Zinc oxide 7 parts

[0043] 1.5 parts of stearic acid

[0044] 1.5 parts of 2,24-trimethyl-1,2-dihydroquinoline polymer

[0045] 1.2 parts of N-1,3-dimethylbutyl-N'-phenyl-p-phenylenediamine

[0046] Spray carbon black 95 parts

[0047] Dioctyl phthalate 8 parts

[0048] 2.5 parts of dicumyl peroxide

[0049] 1.5 parts of 2-mercaptobenzothiazole

[0050] 1.5 parts of tetramethylthiuram disulfide

[0051] Sulfur 0.5 parts.

[0052] A preparation method of a gasket rubber material for an automobile oil pan, comprising the steps of:

[0053] a. One-stage mixing: Put nitrile rubber in an internal mixer and knead for 75s, then add zinc oxide, stearic acid, 2,24-trimethyl-1,2-dihydroquinoline polymer, N- 1,3-Dimethylbutyl-N'-phenyl-p-phenylenediamine, mixed to 95°C, then added spray carbon black and dioctyl phthalate, mixed ...

Embodiment 3

[0057] A gasket rubber material for an automobile oil pan, the raw materials of which include by weight:

[0058] 100 parts of nitrile rubber

[0059] 8 parts of zinc oxide

[0060] 1 part stearic acid

[0061] 2 parts of 2,24-trimethyl-1,2-dihydroquinoline polymer

[0062] 1 part of N-1,3-dimethylbutyl-N'-phenyl-p-phenylenediamine

[0063] Spray carbon black 90 parts

[0064] Dioctyl phthalate 10 parts

[0065] 2 parts dicumyl peroxide

[0066] 1 part of 2-mercaptobenzothiazole

[0067] 1.3 parts of tetramethylthiuram disulfide

[0068] 0.35 parts of sulfur.

[0069] A preparation method of a gasket rubber material for an automobile oil pan, comprising the steps of:

[0070] a. One-stage mixing: Put nitrile rubber in an internal mixer and knead for 70s, then add zinc oxide, stearic acid, 2,24-trimethyl-1,2-dihydroquinoline polymer, N- 1,3-Dimethylbutyl-N'-phenyl-p-phenylenediamine, mixed to 90°C, then added spray carbon black and dioctyl phthalate, mixed to 125°C, a...

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Abstract

The invention discloses an automobile oil sump sealing gasket rubber material, and belongs to the technical field of sealing of automobile oil sump sealing gasket materials. The automobile oil sump sealing gasket rubber material comprises the following main components: nitrile rubber, sprayed carbon black, dicumyl peroxide, tetramethylthiuram disulfide and sulfur. A preparation method of the automobile oil sump sealing gasket rubber material comprises the following technical steps: performing first-stage mixing, performing second-stage mixing, and vulcanizing to finally obtain the automobile oil sump sealing gasket rubber material. Through use of the nitrile rubber with high acrylonitrile content as main rubber, the heat resistance and the oil resistance of the rubber can be significantlyimproved; through use of the sprayed carbon black, the compressive deformation of the rubber can be significantly reduced; through combined use of the dicumyl peroxide, the tetramethylthiuram disulfide and the sulfur, the aging performance and the strength performance of rubber material can be taken into account at the same time; compared with the prior art, the automobile oil sump sealing gasketrubber material, prepared according to a formula and the preparation method which are provided by the invention, has the advantages of excellent aging resistance and low compressive deformation performance, and good hardness, tensile strength and elongation at break.

Description

technical field [0001] The invention relates to the technical field of sealing gasket materials for automobile oil pans, in particular to a method for preparing rubber materials for gaskets used in automobile oil pans. Background technique [0002] The oil pan gasket is a key component used for sealing the oil pan of the automobile engine system. The quality of the oil pan gasket is directly related to whether the oil pan leaks. With the improvement of automobile level, the oil pan gasket has higher requirements for high temperature resistance and low pressure change. The oil pan gasket material prepared by traditional formula can no longer meet the sealing requirements of the oil pan. more stringent requirements. Contents of the invention [0003] The invention provides a gasket material for an automobile oil pan and a preparation method thereof. The gasket for an automobile oil pan has excellent sealing performance, good thermal oil aging resistance and long service lif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08K13/02C08K3/22C08K5/09C08K5/18C08K3/04C08K5/12F01M11/00
Inventor 张国群
Owner QIDONG YONGXING RUBBER PROD
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