High-wear-resisting type oil sealing material and preparation method thereof

A high wear-resisting and oil-sealing technology, applied in mechanical equipment, engine seals, engine components, etc., can solve problems such as acid and alkali resistance decline

Inactive Publication Date: 2018-08-14
RIZHAO DONGDU RUBBER & PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the acid resistance and alkali resistance of the above materials are reduced at high temperature. Therefore, it is very necessary to obtain a new high wear-resistant oil seal material through formula and process improvement.

Method used

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  • High-wear-resisting type oil sealing material and preparation method thereof
  • High-wear-resisting type oil sealing material and preparation method thereof
  • High-wear-resisting type oil sealing material and preparation method thereof

Examples

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preparation example Construction

[0044] In a preferred embodiment, the preparation method of said acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer comprises the following steps at least:

[0045] Add the corresponding weight parts of the monomer and solvent ethanol into the reaction kettle, stir evenly, and add the initiator potassium persulfate to the reaction system, then raise the reaction temperature to 80°C, and carry out the stirring reaction for 5-10 hours to obtain acrylic acid Ester-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer.

[0046] In the present application, the fluororubber can be obtained commercially.

[0047] The fluororubber can be enumerated with vinylidene fluoride rubber, fluorine-containing vinyl ether rubber, tetrafluoroethylene-propylene rubber, phosphazene fluororubber, vinylidene fluoride-based fluororubber, tetrafluoroethylene / propylene-based fluororubber, Rubber, tetrafluoroethylene / propylene / vinylidene fluoride-based fluororubb...

Embodiment 1

[0072] Embodiment 1 of the present invention provides a high wear-resistant oil seal material. The raw materials for the preparation of the high wear-resistant oil seal material include at least the following raw materials in parts by weight:

[0073]

[0074] Described acrylate rubber is acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer;

[0075] In the acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer, the weight ratio between acrylate, ethylene glycol dimethacrylate, and hyperbranched polyacrylate is 100:20: 3;

[0076] Both the acrylate and ethylene glycol dimethacrylate are commercially available. Hyperbranched polyacrylate was purchased from Xibao Biology, the product brand is SeHBP UV208;

[0077] The preparation method of described acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer comprises the following steps at least:

[0078] The monomer (acrylic acid ester, ethylene glycol dimeth...

Embodiment 2

[0095] Embodiment 2 of the present invention provides a high wear-resistant oil seal material. The raw materials for the preparation of the high wear-resistant oil seal material include at least the following raw materials in parts by weight:

[0096]

[0097]

[0098] Described acrylate rubber is acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer;

[0099] In the acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer, the weight ratio between acrylate, ethylene glycol dimethacrylate, and hyperbranched polyacrylate is 100:20: 3;

[0100] Both the acrylate and ethylene glycol dimethacrylate are commercially available. Hyperbranched polyacrylate was purchased from Xibao Biology, the product brand is SeHBP UV208;

[0101] The preparation method of described acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer comprises the following steps at least:

[0102] The monomer (acrylic acid ester, ethylene g...

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Abstract

The invention relates to the field of processing of rubber composite materials and in particular relates to a high-wear-resisting type oil sealing material and a preparation method thereof. The invention provides the high-wear-resisting type oil sealing material; preparation raw materials of the high-wear-resisting type oil sealing material at least comprise the following raw materials in parts byweight: 60 to 85 parts of acrylate rubber, 10 to 20 parts of fluororubber, 10 to 30 parts of white carbon black, 3 to 10 parts of carbon nanotubes, 1 to 3 parts of stearic acid, 1 to 3 parts of graphene, 3 to 6 parts of de-molding agent, 8 to 15 parts of antioxidant, 0.5 to 1 part of 2,2-dithiobisbenzothiazole, 1 to 1.5 parts of tetraethylthiuram disulfide and 1 to 3 parts of dispersant.

Description

technical field [0001] The invention relates to the field of processing rubber composite materials, in particular to a high wear-resistant oil seal material and a preparation method thereof. Background technique [0002] Oil seal (oil seal) is the customary title of general seals, simply put, it is the seal of lubricating oil. It is a mechanical element used to seal grease (oil is the most common liquid substance in the transmission system, and it also generally refers to the general liquid substance). Oil leaks. Seals for static seals and dynamic seals (general reciprocating motion) are called oil seals. [0003] Commonly used materials for oil seals are: nitrile rubber, fluororubber, silicone rubber, acrylic rubber, polyurethane, polytetrafluoroethylene, etc. [0004] Nitrile rubber: It has good heat resistance and wear resistance, and is resistant to various lubricating oils, greases, oil-gas mixtures, etc., and the applicable temperature is -30 to 120 degrees Celsius,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/04C08L101/04C08L71/02C08K13/06C08K9/04C08K3/36C08K3/04C08K5/09C08K5/47F16J15/00
CPCC08K2201/011C08L33/04C08L2205/025C08L2205/035F16J15/00C08L101/04C08L71/02C08K13/06C08K9/04C08K3/36C08K3/042C08K5/09C08K3/041C08K5/47
Inventor 徐浩文张守彦徐淑强孙玉光
Owner RIZHAO DONGDU RUBBER & PLASTIC PROD
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