CN102464845A - Nano-silica-filled modified PTFE (Polytetrafluorethylene) resin - Google Patents
Nano-silica-filled modified PTFE (Polytetrafluorethylene) resin Download PDFInfo
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- CN102464845A CN102464845A CN2010105398159A CN201010539815A CN102464845A CN 102464845 A CN102464845 A CN 102464845A CN 2010105398159 A CN2010105398159 A CN 2010105398159A CN 201010539815 A CN201010539815 A CN 201010539815A CN 102464845 A CN102464845 A CN 102464845A
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- ptfe
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- nano silicon
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Abstract
The invention relates to the technical field of high molecular materials, in particular to nano-silica-filled modified PTFE (Polytetrafluorethylene) resin. The nano-silica-filled modified PTFE resin is prepared by the steps of: mixing PTFE resin, nano-silica and pigment at low speed and high speed, carrying out compression molding, and freely sintering. The PTFE has excellent electric insulativity, chemical stability and corrosion resistance and also has certain defects such as wear nonresistance, easy creep, poor compression resistance and the like; and the defects can be overcome by adding various high-hardness inorganic powder, but the machining performance of the PTFE is damaged by the high-hardness inorganic powder, and a cutter is seriously worn. The invention provides the nano-silica-filled modified PTFE resin which not only can realize high wear resistance as well as favorable compression resistance and creep resistance, but also has almost no influence to the machining performance of a material.
Description
Technical field
The present invention relates to technical field of polymer materials, is a kind of nano-silica filled modified ptfe resinoid.
Background technology
Tetrafluoroethylene has excellent electric insulation property, chemicalstability, erosion resistance.Simultaneously, tetrafluoroethylene also has certain shortcoming: not wear-resisting, easy creep, resistance to compression difference or the like, usually through adding the inorganic powder of various high firmness; Can improve above-mentioned shortcoming; But after adding the inorganic powder of high firmness, very serious to the wearing and tearing of machine tool, be unfavorable for mechanical workout.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide and to realize high-wearing feature, good resistance to compression and creep resistance, not too influence a kind of nano-silica filled modified ptfe resinoid of material mechanical processibility again.
Invention realizes through following technical scheme:
A kind of nano-silica filled modified ptfe resinoid, it is characterized in that: its component and parts by weight are respectively:
100 parts of PTFE resinoids;
1～10 part of nano silicon;
0.3～5 part of pigment.
And described a kind of nano-silica filled modified ptfe resinoid is characterized in that: described PTFE resinoid is selected from one or more of PTFE suspension polymerization resin, PTFE reclaimed materials crushing resin of 15～45 microns of median sizes.
And described a kind of nano-silica filled modified ptfe resinoid is characterized in that: described nano silicon is a kind of silicon-dioxide of producing through chemical vapour deposition (CAV) method (claiming pyrogenic silica, dry method or combustion method again).
And described a kind of nano-silica filled modified ptfe resinoid is characterized in that: described pigment is carbon black, white titanium pigment, phthalocyanine blue, phthalocyanine green, iron oxide red, cough up in the chrome yellow one or more.
Characteristics of the present invention are:
1. this nano-silica filled modified ptfe resinoid when having good wear resistance, resistance to compression and creep-resistant property, also possesses the favorable mechanical processing characteristics, adaptable across making various PTFE machining goods.
Embodiment
The present invention further details through following examples, and following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.
Embodiment: PTFE precision work special-purpose section
PTFE 100kg
Nano silicon 3kg
PTFE resin, nano silicon, carbon black are put into high mixer successively, and at first low speed mixing 1-2 minute, blowing after mixed at high speed 1-5 minute obtained mixed ingredients then.Mixed ingredients is joined in the mould through forcing reinforced method, use four-column hydraulic press compression moulding, under 380 ℃ temperature, freely sinter section bar into.
Claims (4)
1. a nano silicon strengthens the PTFE resinoid, and it is characterized in that: its component and parts by weight are respectively:
100 parts of PTFE resinoids;
1～10 part of nano silicon;
0.3～5 part of pigment.
2. a kind of nano silicon according to claim 1 strengthens the PTFE resinoid, it is characterized in that: described PTFE resinoid is selected from one or more of PTFE suspension polymerization resin, PTFE reclaimed materials crushing resin of 15～45 microns of median sizes.
3. a kind of nano silicon according to claim 1 strengthens the PTFE resinoid, and it is characterized in that: described nano silicon is a kind of through chemical vapour deposition (CAV) method, claims the silicon-dioxide that pyrogenic silica, dry method or combustion method are produced again.
4. a kind of nano silicon according to claim 1 strengthens the PTFE resinoid, it is characterized in that: described pigment is carbon black, white titanium pigment, phthalocyanine blue, phthalocyanine green, iron oxide red, cough up in the chrome yellow one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105398159A CN102464845A (en) | 2010-11-11 | 2010-11-11 | Nano-silica-filled modified PTFE (Polytetrafluorethylene) resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105398159A CN102464845A (en) | 2010-11-11 | 2010-11-11 | Nano-silica-filled modified PTFE (Polytetrafluorethylene) resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102464845A true CN102464845A (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105398159A Pending CN102464845A (en) | 2010-11-11 | 2010-11-11 | Nano-silica-filled modified PTFE (Polytetrafluorethylene) resin |
Country Status (1)
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| CN (1) | CN102464845A (en) |
Cited By (6)
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|---|---|---|---|---|
| CN102719043A (en) * | 2012-06-19 | 2012-10-10 | 天津市天塑科技集团有限公司技术中心 | Novel high-reliability microwave sheet material |
| CN102719042A (en) * | 2012-06-19 | 2012-10-10 | 天津市天塑科技集团有限公司技术中心 | Self-lubrication wear-resistant modified PTFE (Poly Tetra Fluoro Ethylene) sealing material |
| CN103113697A (en) * | 2013-03-11 | 2013-05-22 | 中山大学 | Creep-resistant inorganic nano-particle/polymer composite material and preparation method thereof |
| CN105643826A (en) * | 2016-01-04 | 2016-06-08 | 天津市天塑科技集团有限公司 | PTFE/SiO2 solid particle and preparation method thereof and fluidized bed heat exchange purpose |
| CN105906998A (en) * | 2016-06-20 | 2016-08-31 | 安徽荣达阀门有限公司 | Silicon dioxide filled carbon manometer-polytetrafluoroethylene valve sealing ring |
| CN107001753A (en) * | 2014-12-12 | 2017-08-01 | 大金工业株式会社 | Polyetetrafluoroethycomposition composition |
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| CN101240509A (en) * | 2008-03-26 | 2008-08-13 | 泰兴市维维高分子材料有限公司 | Method for preparing polytetrafluoroethylene spatial structure building film material |
| CN101838414A (en) * | 2010-03-26 | 2010-09-22 | 中山大学 | Method for preparing oriented inorganic nanoparticles/thermoplastic polymer composite material |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102719043A (en) * | 2012-06-19 | 2012-10-10 | 天津市天塑科技集团有限公司技术中心 | Novel high-reliability microwave sheet material |
| CN102719042A (en) * | 2012-06-19 | 2012-10-10 | 天津市天塑科技集团有限公司技术中心 | Self-lubrication wear-resistant modified PTFE (Poly Tetra Fluoro Ethylene) sealing material |
| CN103113697A (en) * | 2013-03-11 | 2013-05-22 | 中山大学 | Creep-resistant inorganic nano-particle/polymer composite material and preparation method thereof |
| CN103113697B (en) * | 2013-03-11 | 2015-05-27 | 中山大学 | Creep-resistant inorganic nano-particle/polymer composite material and preparation method thereof |
| CN107001753A (en) * | 2014-12-12 | 2017-08-01 | 大金工业株式会社 | Polyetetrafluoroethycomposition composition |
| CN107001753B (en) * | 2014-12-12 | 2020-02-28 | 大金工业株式会社 | Polytetrafluoroethylene composition |
| US11041061B2 (en) | 2014-12-12 | 2021-06-22 | Daikin Industries, Ltd. | Polytetrafluoroethylene composition |
| CN105643826A (en) * | 2016-01-04 | 2016-06-08 | 天津市天塑科技集团有限公司 | PTFE/SiO2 solid particle and preparation method thereof and fluidized bed heat exchange purpose |
| CN105906998A (en) * | 2016-06-20 | 2016-08-31 | 安徽荣达阀门有限公司 | Silicon dioxide filled carbon manometer-polytetrafluoroethylene valve sealing ring |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120523 |