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Environmentally friendly oil seal material and preparation method thereof

An environmentally friendly, oil-sealed technology, applied in the field of rubber composite material processing, can solve the problems of acid and alkali resistance decline

Inactive Publication Date: 2018-08-17
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 environment-friendly oil seal material through formula and process improvement.

Method used

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  • Environmentally friendly oil seal material and preparation method thereof
  • Environmentally friendly oil seal material and preparation method thereof
  • Environmentally friendly oil seal material and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0048] In a preferred embodiment, the preparation method of said acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer comprises the following steps at least:

[0049]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.

[0050] In the present application, the white carbon black can be obtained commercially. The white carbon black in this application is commercially available, and the product brand is Degussa AEROSIL R106;

[0051] In the present application, the carbon nanotubes can be obtained commercially.

[0052] In a preferred embodiment, the carbon nanotubes are carboxylated carbon nanotubes; the carboxylated carbon nanotubes are purc...

Embodiment 1

[0074] Embodiment 1 of the present invention provides an environment-friendly oil seal material. The raw materials for the preparation of the environment-friendly oil seal material include at least the following materials in parts by weight:

[0075]

[0076] The polyurethane rubber is thermoplastic polyurethane elastomer rubber; the product grade is: TPU-S85A15.

[0077] Described acrylate rubber is acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer;

[0078] In the acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer, the weight ratio between acrylate, ethylene glycol dimethacrylate, and hyperbranched polyacrylate is 100:20: 3;

[0079] Both the acrylate and ethylene glycol dimethacrylate are commercially available. Hyperbranched polyacrylate was purchased from Xibao Biology, the product brand is SeHBP UV208;

[0080] The preparation method of described acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate ...

Embodiment 2

[0097] Embodiment 2 of the present invention provides an environment-friendly oil seal material. The raw materials for the preparation of the environment-friendly oil seal material include at least the following materials in parts by weight:

[0098]

[0099]

[0100] The polyurethane rubber is thermoplastic polyurethane elastomer rubber; the product grade is: TPU-S85A15.

[0101] Described acrylate rubber is acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer;

[0102] In the acrylate-ethylene glycol dimethacrylate-hyperbranched polyacrylate copolymer, the weight ratio between acrylate, ethylene glycol dimethacrylate, and hyperbranched polyacrylate is 100:20: 3;

[0103] Both the acrylate and ethylene glycol dimethacrylate are commercially available. Hyperbranched polyacrylate was purchased from Xibao Biology, the product brand is SeHBP UV208;

[0104] The preparation method of described acrylate-ethylene glycol dimethacrylate-hyperbranched p...

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Abstract

The invention relates to the field of processing of rubber composite materials, in particular to an environmentally friendly oil seal material and a preparation method thereof. The environmentally friendly oil seal material at least comprises the following preparation raw materials in parts by weight: 60-85 parts of polyacrylate rubber, 10-20 parts of fluororubber, 10-30 parts of white carbon black, 3-10 parts of carbon nanotubes, 1-3 parts of stearic acid, 1-3 parts of graphene, 3-6 parts of a release agent, 8-15 parts of an antioxidant, 0.5-1 part of 2,2-dithiobisbenzothiazole, 1-1.5 parts of tetraethylthiuram disulfide and 1-3 parts of a dispersing agent.

Description

technical field [0001] The invention relates to the field of processing rubber composite materials, in particular to an environment-friendly oil seal material and a preparation method thereof. Background technique [0002] Commonly used materials for oil seals are: nitrile rubber, fluororubber, silicone rubber, acrylic rubber, polyurethane, polytetrafluoroethylene, etc. [0003] Nitrile rubber and fluororubber materials are widely used oil seals. The former is low in cost, but its temperature resistance and sealing performance have been significantly improved, but the cost is high, and it still has some common characteristics of ordinary rubber materials, such as poor wear resistance. , short service life, particularly sensitive to the eccentric response of the shaft, etc., the leakage phenomenon is still relatively common. [0004] Nitrile rubber: It has good heat resistance and wear resistance, and is resistant to various lubricating oils, greases, oil-gas mixtures, etc.,...

Claims

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Application Information

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IPC IPC(8): C08L75/04C08L33/04C08K13/06C08K9/04C08K3/04C08K3/36C08K5/098C08K5/40
CPCC08K2201/011C08L33/04C08L75/04C08K13/06C08K9/04C08K3/041C08K3/36C08K5/098C08K3/042C08K5/40
Inventor 徐浩文张守彦徐淑强孙玉光
Owner RIZHAO DONGDU RUBBER & PLASTIC PROD
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