Modified fluororubber sealing gasket used for engine and preparation method of modified fluororubber sealing gasket

A technology of modified fluororubber and sealing gasket, which is applied in the field of fluororubber, can solve the problems of fluororubber wear resistance, elasticity and mechanical properties that cannot meet the demand, and achieve excellent mechanical properties, high temperature resistance and good compatibility , wear resistance and mechanical properties enhancement effect

Inactive Publication Date: 2015-11-25
ANHUI JINYANG FLUORINE CHEM
View PDF3 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Sealing gaskets are mainly used to prevent material leakage, and can be made of metal materials, plastics, fabrics, etc., but more and more rubber materials are used at present. Compared with other rubbers, fluororubber has excellent high temperature resistance, oil resistance and resistance Chemical corrosion performance is currently widely used in engine gaskets, but with the improvement of engine performance for a long time, the wear resistance, elasticity and mechanical properties of fluororubber can not meet the demand more and more

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A modified fluororubber sealing gasket for an engine, its raw materials include by weight: 50 parts of maleic anhydride modified fluororubber, 30 parts of polyether polyurethane rubber, 10 parts of polypropylene, 15 parts of methyl vinyl silicone rubber, 1 part of titanate coupling agent TMC-TTS, 1.6 parts of dicumyl peroxide, 1 part of ammonium persulfate, 3 parts of 2-mercaptobenzimidazole, 5 parts of magnesium hydroxide, 30 parts of polytetrafluoroethylene fiber , 5 parts of carbon fiber, 10 parts of ceramic fiber, 5 parts of white carbon black, 17 parts of talcum powder, 1 part of antioxidant, 3 parts of triphenyl phosphate, 1 part of dibutyl phthalate, 2 parts of stearic acid, liquid 0.5 parts of paraffin, 3 parts of naphthenic oil.

Embodiment 2

[0017] A modified fluororubber sealing gasket for an engine, its raw materials include by weight: 70 parts of maleic anhydride modified fluororubber, 20 parts of polyether polyurethane rubber, 20 parts of polypropylene, 5 parts of methyl vinyl silicone rubber, 3 parts of titanate coupling agent TMC-TTS, 0.8 parts of dicumyl peroxide, 3 parts of ammonium persulfate, 1 part of 2-mercaptobenzimidazole, 8 parts of magnesium hydroxide, 20 parts of polytetrafluoroethylene fiber , 10 parts of carbon fiber, 5 parts of ceramic fiber, 15 parts of white carbon black, 8 parts of talcum powder, 3 parts of antioxidant, 1 part of triphenyl phosphate, 3 parts of dibutyl phthalate, 1 part of stearic acid, liquid 1.5 parts of paraffin, 1 part of naphthenic oil.

Embodiment 3

[0019] A modified fluororubber sealing gasket for an engine, its raw materials include by weight: 63 parts of maleic anhydride modified fluororubber, 26 parts of polyether polyurethane rubber, 16 parts of polypropylene, 12 parts of methyl vinyl silicone rubber, 1.5 parts of titanate coupling agent TMC-TTS, 1.2 parts of dicumyl peroxide, 1.5 parts of ammonium persulfate, 2.4 parts of 2-mercaptobenzimidazole, 6 parts of magnesium hydroxide, polytetrafluoroethylene fiber 26 parts, 6 parts of carbon fiber, 9 parts of ceramic fiber, 8 parts of white carbon black, 14 parts of talcum powder, 1.5 parts of anti-aging agent, 2.6 parts of triphenyl phosphate, 1.2 parts of dibutyl phthalate, 1.6 parts of stearic acid , 1 part of liquid paraffin, 2.1 parts of naphthenic oil.

[0020] The maleic anhydride modified fluororubber is prepared by the following process: mix 40 parts of fluororubber raw rubber and 10 parts of maleic anhydride in parts by weight, the mixing temperature is 100 ° C, ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a modified fluororubber sealing gasket used for an engine. The modified fluororubber sealing gasket comprises, by weight, 50-70 parts of maleic anhydride modified fluororubber, 20-30 parts of polyether urethane rubber, 10-20 parts of polypropylene, 5-15 parts of methyl vinyl silicone rubber, 1-3 parts of titanate coupling agents TMC-TTS, 0.8-1.6 parts of dicumyl peroxide, 1-3 parts of potassium peroxodisulfate, 1-3 parts of 2-thiol group benzimidazole, 5-8 parts of magnesium hydrate, 20-30 parts of polytetrafluoroethylene fiber, 5-10 parts of carbon fiber, 5-10 parts of ceramic fiber, 5-15 parts of white carbon black, 8-17 parts of talcum powder, 1-3 parts of anti-ageing agents, 1-3 parts of triphenyl phosphate, 1-3 parts of dibutyl phthalate, 1-2 parts of stearic acid, 0.5-1.5 parts of liquid paraffin and 1-3 parts of naphthenic oil. The invention further discloses a preparation method of the modified fluororubber sealing gasket. The product has good shock absorption performance and a good mechanical property, and the preparation method is simple.

Description

technical field [0001] The invention relates to the technical field of fluororubber, in particular to a modified fluororubber sealing gasket for an engine and a preparation method thereof. Background technique [0002] Sealing gaskets are mainly used to prevent material leakage, and can be made of metal materials, plastics, fabrics, etc., but more and more rubber materials are used at present. Compared with other rubbers, fluororubber has excellent high temperature resistance, oil resistance and resistance Chemical corrosion performance is currently widely used in engine gaskets. However, with the improvement of engine performance for a long time, the wear resistance, elasticity and mechanical properties of fluorine rubber are increasingly unable to meet the needs. Contents of the invention [0003] The invention provides a modified fluorine rubber sealing gasket for an engine and a preparation method thereof. The product has high elasticity, good wear resistance, extremel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/22C08L75/08C08L23/12C08L83/07C08L27/18C08L91/06C08L91/00C08K13/04C08K7/06C08K7/04C08K7/14C08K5/14C08K5/37C08K3/22C08K3/36C08K3/34C08K5/523C08K5/12C08K5/09
Inventor 陈喜
Owner ANHUI JINYANG FLUORINE CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap