CN1062571C - Granulation technology for polytetrafluoroethylene, polyperfluoroethylpropylene and polyphanylene thio-ether blend modified polytetrafluoroethylene fibre composite material for pressing forming - Google Patents
Granulation technology for polytetrafluoroethylene, polyperfluoroethylpropylene and polyphanylene thio-ether blend modified polytetrafluoroethylene fibre composite material for pressing forming Download PDFInfo
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- CN1062571C CN1062571C CN96115781A CN96115781A CN1062571C CN 1062571 C CN1062571 C CN 1062571C CN 96115781 A CN96115781 A CN 96115781A CN 96115781 A CN96115781 A CN 96115781A CN 1062571 C CN1062571 C CN 1062571C
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- polyphenylene sulfide
- polytetrafluoroethylene
- propylene
- fiber
- make
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Abstract
The present invention relates to a technological granulation method of a composite polytetrafluoroethylene fiber material modified by blending polytetrafluoroethylene, polyperfluoroethyl propylene and polyphenyl thioether, and the composite polytetrafluoroethylene fiber material is used for pressing. The method comprises: firstly, coarse fiber yarn is obtained by impregnating carbon fibers in a suspension of the polyphenyl thioether through drying, melt infiltration and cooling; secondly, the coarse fiber yarn is cut into short fiber bundles put into a ball mill, milled into balls and torn into monofilament fibers; thirdly, polytetrafluoroethylene powder, resin powder of polyphenyl thioether and the monofilament fibers are taken, put into a mixing machine and mixed; fourthly, a concentrated suspension of the polyperfluoroethyl propylene is added and mixed with the mixture to form a paste-shaped material, and the paste-shaped material is made into plastic strip-shaped material granules; finally, the material granules are made into the material granules of the composite polytetrafluoroethylene fiber material modified by blending polytetrafluoroethylene, polyperfluoroethyl propylene and polyphenyl thioether through heating, drying and crushing, and the composite material is used for pressing.
Description
The present invention relates to compacting and use tetrafluoroethylene, perfluoroethylene-propylene and polyphenylene sulfide blended modified polytetrafluoroethylfibre fibre composite material granulation process method and technology field.
The early existing document announcement of tetrafluoroethylene and polyphenylene sulfide blended resin fibre matrix material, owing to tetrafluoroethylene has only the crystallization fusion not have melt-flow when the high temperature, free surface energy is very low and have not viscosity, can only form the weak interface coating at its mixed interlaminar resin and make the wear resistance of material bad, and tetrafluoroethylene, perfluoroethylene-propylene and polyphenylene sulfide blended modified polytetrafluoroethylfibre fibre composite material were not all met report at home and abroad.
The purpose of this invention is to provide a kind of compacting tetrafluoroethylene, perfluoroethylene-propylene and polyphenylene sulfide blended modified polytetrafluoroethylfibre fibre composite material granulation process method, adopt material that this method makes except that having tetrafluoroethylene and polyphenylene sulfide blended resin fibre matrix material good self lubricity, erosion resistance and thermotolerance, also have good flame resistance, air penetrability is low.
The present invention is achieved in that and gets polyphenylene sulfide resin cosmetics, ethanol and distilled water, earlier polyphenylene sulfide being put into is with the ball mill porcelain jar of porcelain ball to dry grind broken, dry grind after broken the finishing, again ethanol and distilled water are put into porcelain jar and carry out wet-milling, make polyphenylene sulfide suspension, carbon fiber or glass fibre or carbon fiber and glass fibre mutually the miscellaneous fiber go up polyphenylene sulfide suspension by the impregnator dipping, through dry air, the fiber roving that is soaked with polyphenylene sulfide is made in heating and melting and hardening by cooling, this fiber roving cutting short-forming fiber bundle, be placed in the ball mill staple fibre bundle ball milling is torn off into monfil then; Getting polytetrafluoroethylene powder 50-70% and polyphenylene sulfide resin cosmetics 10-30% and monfil 10-30% by weight percentage puts into the double-vane screw mixer it is mixed; add perfluoroethylene-propylene concentrated suspension liquid (butt thing meter) 10-20% then; make it be mixed into plaster material; plaster material is put into Pendulargranulator; make it become plasticity strip material grain; this material grain is sent into heat drying in the baking oven, make the compacting tetrafluoroethylene through fragmentation; perfluoroethylene-propylene and polyphenylene sulfide blended modified polytetrafluoroethylfibre fibre composite material material grain and powder.
Advantage of the present invention is: method of manufacturing technology is simple, and the material of being made by this method has good self lubricity, erosion resistance, thermotolerance, physical strength is preferably arranged, higher elongation at break, the low and good flame resistance of air penetrability.
Below in conjunction with embodiment, the present invention will be further described:
Get 20 kilograms in polyphenylene sulfide resin cosmetics, 40 kilograms of 40 kilograms of ethanol and distilled water, earlier polyphenylene sulfide is put into the ball mill porcelain jar of band porcelain ball, it is broken at room temperature to dry grind, time is 10 hours, again ethanol and distilled water being put into porcelain jar after dry grinding is finished carries out wet-milling and makes polyphenylene sulfide suspension, get carbon fiber or glass fibre or carbon fiber and glass fibre mutually 10 kilograms of miscellaneous fibers go up polyphenylene sulfide suspension by the impregnator dipping, through dry air, the fiber roving that is soaked with polyphenylene sulfide is made in heating and melting and hardening by cooling, then this fiber roving is cut into the staple fibre bundle of 0.5-1.0mm, is placed in the ball mill staple fibre bundle ball milling is torn off into monfil; Getting 10 kilograms in 50 kilograms of polytetrafluoroethylene powders and polyphenylene sulfide resin cosmetics and monfil by weight percentage puts in people's double-vane screw mixer for 10 kilograms it is mixed, add 10 kilograms of perfluoroethylene-propylene concentrated suspension liquids then, make it be mixed into plaster material; Plaster material is put into Pendulargranulator; make it become plasticity strip material grain; this material grain is sent into heat drying in the baking oven; oven temperature is 100-200 ℃; be 4-5 hour time of drying; make it make compacting with 166.25 kilograms of tetrafluoroethylene, perfluoroethylene-propylene and polyphenylene sulfide blended modified polytetrafluoroethylfibre fibre composite material material grain and powders by 1 * 1mm sieve aperture through fragmentation dried material, this material is suitable for making hydraulic pressure and pneumatic seal, bearing, chemical machinery and automobile accessory.
Claims (1)
1; the compacting tetrafluoroethylene; perfluoroethylene-propylene and polyphenylene sulfide blended modified polytetrafluoroethylfibre fibre composite material granulation process method; it is characterized in that: get polyphenylene sulfide resin cosmetics; ethanol and distilled water; earlier polyphenylene sulfide being put into is with the ball mill porcelain jar of porcelain ball to dry grind broken; dry grind after broken the finishing; again ethanol and distilled water are put into porcelain jar and carry out wet-milling; make polyphenylene sulfide suspension; carbon fiber or glass fibre or carbon fiber and glass fibre mutually the miscellaneous fiber go up polyphenylene sulfide suspension by the impregnator dipping; through dry air; the fiber roving that is soaked with polyphenylene sulfide is made in heating and melting and hardening by cooling; then this fiber roving cutting short-forming fiber bundle; be placed in the ball mill staple fibre bundle ball milling is torn off into monfil; by weight percentage; getting polytetrafluoroethylene powder 50-70% and polyphenylene sulfide resin cosmetics 10-30% and monfil 10-30% puts into the double-vane screw mixer it is mixed; add perfluoroethylene-propylene concentrated suspension liquid (butt thing meter) 10-20% then; make it be mixed into plaster material; plaster material is put into Pendulargranulator; make it become plasticity strip material grain; this material grain is sent into heat drying in the baking oven, make the compacting tetrafluoroethylene through fragmentation; perfluoroethylene-propylene and polyphenylene sulfide blended modified polytetrafluoroethylfibre fibre composite material material grain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115781A CN1062571C (en) | 1996-05-15 | 1996-05-15 | Granulation technology for polytetrafluoroethylene, polyperfluoroethylpropylene and polyphanylene thio-ether blend modified polytetrafluoroethylene fibre composite material for pressing forming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96115781A CN1062571C (en) | 1996-05-15 | 1996-05-15 | Granulation technology for polytetrafluoroethylene, polyperfluoroethylpropylene and polyphanylene thio-ether blend modified polytetrafluoroethylene fibre composite material for pressing forming |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1165155A CN1165155A (en) | 1997-11-19 |
| CN1062571C true CN1062571C (en) | 2001-02-28 |
Family
ID=5122999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96115781A Expired - Fee Related CN1062571C (en) | 1996-05-15 | 1996-05-15 | Granulation technology for polytetrafluoroethylene, polyperfluoroethylpropylene and polyphanylene thio-ether blend modified polytetrafluoroethylene fibre composite material for pressing forming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1062571C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045589A (en) * | 1989-03-14 | 1990-09-26 | 代金工业株式会社 | The continuous preparation method of polytetrafluoroethylwet wet powder |
| CN1071179A (en) * | 1991-09-29 | 1993-04-21 | 中国人民解放军工程兵工程学院 | Carbon-fibre reinforced polytetrafluorethylesealing sealing material and preparation method thereof |
| CN1118387A (en) * | 1994-05-31 | 1996-03-13 | 日立电线株式会社 | High strength fiber of polytetrafluoroethylene and a method for manufacturing the same |
-
1996
- 1996-05-15 CN CN96115781A patent/CN1062571C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1045589A (en) * | 1989-03-14 | 1990-09-26 | 代金工业株式会社 | The continuous preparation method of polytetrafluoroethylwet wet powder |
| CN1071179A (en) * | 1991-09-29 | 1993-04-21 | 中国人民解放军工程兵工程学院 | Carbon-fibre reinforced polytetrafluorethylesealing sealing material and preparation method thereof |
| CN1118387A (en) * | 1994-05-31 | 1996-03-13 | 日立电线株式会社 | High strength fiber of polytetrafluoroethylene and a method for manufacturing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1165155A (en) | 1997-11-19 |
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