CN102627820A - Modified teflon material for dynamic/static seal - Google Patents
Modified teflon material for dynamic/static seal Download PDFInfo
- Publication number
- CN102627820A CN102627820A CN2011102363932A CN201110236393A CN102627820A CN 102627820 A CN102627820 A CN 102627820A CN 2011102363932 A CN2011102363932 A CN 2011102363932A CN 201110236393 A CN201110236393 A CN 201110236393A CN 102627820 A CN102627820 A CN 102627820A
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- modified teflon
- static seal
- move
- teflon material
- resistance
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Abstract
The invention relates to the technical field of sealing materials, specifically to a modified teflon material for dynamic/static seal. The modified teflon material is prepared by cold pressing, sintering and machining of a modified teflon powder. If tuning into a sheet material, its minimum thickness can reach 50 micrometers. The modified teflon has good heat resistance, compressibility resistance and cold flow creep resistance, has better corrosion resistance and radiation resistance and lower density than pure PTFE, and has excellent electrical property and good airtightness, and is nonstick and nontoxic. Under the same load, alloy can be used at higher temperatures for a long time. Additionally, sliding friction coefficient of alloy pads is only 0.16, the material provided by the invention has excellent wear resistance and is very suitable for the sliding seal field.
Description
Technical field
The present invention relates to the sealing material technical field, is a kind ofly to be used to move/the modified Teflon material of static seal.
Background technology
Polytetrafluoroethylene (PTFE) has the characteristic of easy creep, and this specific character makes it become a kind of good sealing material, is generally used for high temperature, high pressure, high burn into and solvent environment.But; The wear resistance of extreme difference and excessive cold flow creep make that the life-span of pure PTFE sealing material is very short, and be powder filling-modified through the metal, the inorganic non-metallic that add various inorganic staple fibres or high firmness, can improve above-mentioned shortcoming; But after adding these weighting materials; The resistance to air loss of material, erosion resistance all can descend, and the high firmness of weighting material is very serious to the wearing and tearing of machine tool in addition, is unfavorable for cut.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art; Provide and can realize high-wearing feature, good resistance to compression and creep resistance, what not too influence material resistance to air loss, erosion resistance and machinability again a kind ofly is used to move/the modified Teflon material of static seal.
Invention realizes through following technical scheme:
A kind ofly be used to move/the modified Teflon material of static seal; Be by polytetrafluoroethylene (PTFE) and polyetheretherketone powder (PEEK) through overdrying mix, cold pressing, sintering, mechanical workout process; It is characterized in that: modified Teflon is tetrafluoroethylene and polyether-ether-ketone blending alloy, and its component and parts by weight are respectively:
100 parts of PTFE resinoids;
5～40 parts in polyetheretherketone powder;
0～3 part of pigment.
And, describedly a kind ofly be used to move/the modified Teflon material of static seal, it is characterized in that: described PTFE resinoid is selected from the PTFE suspension polymerization resin of 15～45 microns of median sizes.
And, describedly a kind ofly be used to move/the modified Teflon material of static seal, it is characterized in that: described polyetheretherketone powder is that median size is at the light yellow toner below 80 microns.
And, describedly a kind ofly be used to move/the modified Teflon material of static seal, it is characterized in that: described pigment is one or more of titanium white, chrome yellow, barba hispanica, cadmium red, cadmium yellow, zinc sulfide white, carbon black, red iron oxide, yellow oxide of iron.
Characteristics of the present invention are:
1. originally be used to move/the modified Teflon material of static seal, have good thermotolerance, resistance to compression and anti-cold flow creep properties, compare with pure PTFE, under identical load, the alloy pad can be under higher temperature life-time service.
2. originally be used to move/the modified Teflon material of static seal, have the low-down coefficient of sliding friction, wear resisting property is excellent simultaneously, is highly suitable for the slipper seal field.
3. originally be used to move/the modified Teflon material of static seal, compare with pure PTFE, have better erosion resistance and radiation resistance, electrical property is excellent, and resistance to air loss is good, and adhesion is nontoxic, and lower density makes it be highly suitable for aerospace field.
4. originally being used to move/the modified Teflon material of static seal, is two kinds of resin alloies, possesses the favorable mechanical processing characteristics, and cutting does not damage cutter, can be through being lathed sheet material, and its thickness is the thinnest can to reach 50 microns.
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: 1200mm rotary cut sheet material
PTFE 100kg
PEEK 30kg
Chrome yellow 0.2kg
PTFE resin, PEEK resin, chrome yellow are put into high mixer successively, and at first low speed mixing is 1 minute, and mixed at high speed blowing after 2 minutes obtains 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 big blank into, at last that preheating is good big blank is placed on and is lathed broadsheet on the peeler.
Claims (5)
1. one kind is used to move/the modified Teflon material of static seal, and it is characterized in that: modified Teflon is tetrafluoroethylene and polyether-ether-ketone blending alloy, and its component and parts by weight are respectively:
100 parts of PTFE resinoids;
5～40 parts in polyetheretherketone powder;
0～3 part of pigment.
2. according to claim 1ly a kind ofly be used to move/the modified Teflon material of static seal, it is characterized in that: described PTFE resinoid is selected from the PTFE suspension polymerization resin of 15～45 microns of median sizes.
3. according to claim 1ly a kind ofly be used to move/the modified Teflon material of static seal, it is characterized in that: described polyetheretherketone powder is that median size is at the light yellow toner below 80 microns.
4. according to claim 1ly a kind ofly be used to move/the modified Teflon material of static seal, it is characterized in that: described pigment is one or more of titanium white, chrome yellow, barba hispanica, cadmium red, cadmium yellow, zinc sulfide white, carbon black, red iron oxide, yellow oxide of iron.
5. one kind is used to move/the modified Teflon material of static seal; It is characterized in that: the sealing material be by tetrafluoroethylene and polyetheretherketone powder through overdrying mix, cold pressing, sintering, mechanical workout process; If be lathed sheet material, thickness is minimum can to reach 50 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102363932A CN102627820A (en) | 2011-08-18 | 2011-08-18 | Modified teflon material for dynamic/static seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102363932A CN102627820A (en) | 2011-08-18 | 2011-08-18 | Modified teflon material for dynamic/static seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102627820A true CN102627820A (en) | 2012-08-08 |
Family
ID=46586228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102363932A Pending CN102627820A (en) | 2011-08-18 | 2011-08-18 | Modified teflon material for dynamic/static seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102627820A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102628A (en) * | 2013-02-26 | 2013-05-15 | 无锡市祥健四氟制品有限公司 | Components of polyether-ether-ketone modified polytetrafluoroethylene sheet |
| CN105936724A (en) * | 2016-06-22 | 2016-09-14 | 芜湖市长江起重设备制造有限公司 | Polyether-ether-ketone modified polytetrafluoroethylene material and preparation method thereof |
| CN106084581A (en) * | 2016-06-20 | 2016-11-09 | 安徽荣达阀门有限公司 | The carbon nanotube/polytetrafluoroethylcomposite valve sealing ring that a kind of polyether sulfone is filled |
| CN106398058A (en) * | 2016-06-20 | 2017-02-15 | 安徽荣达阀门有限公司 | Carbon nanotube-polytetrafluoroethylene valve sealing ring filled with polyether-ether-ketone |
| CN106564204A (en) * | 2016-08-31 | 2017-04-19 | 浙江德清科赛塑料制品有限公司 | Machining method for PTFE anti-fatigue membrane for butterfly valve |
| CN109603305A (en) * | 2019-01-10 | 2019-04-12 | 河南德源净化装备有限公司 | A kind of production method of the sintered metal mesh of filtering corrosion resistance |
| CN110128768A (en) * | 2019-04-24 | 2019-08-16 | 镇江市营房塑电有限公司 | A kind of polytetrafluoroethylene sealing gasket piece |
| CN110183799A (en) * | 2019-05-08 | 2019-08-30 | 镇江市营房塑电有限公司 | A kind of gasket seal board and preparation method thereof |
Citations (5)
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| US4592782A (en) * | 1983-03-14 | 1986-06-03 | Ae Plc | Composition of matter incorporating polyether ether ketone |
| EP0367629A1 (en) * | 1988-11-04 | 1990-05-09 | BICC Public Limited Company | Fluorocarbon polymer compositions and articles, especially electric cables, with markings on a surface thereof. |
| US20060029795A1 (en) * | 2004-08-09 | 2006-02-09 | University Of Florida Research Foundation, Inc. | Multi-layer low friction and low wear polymer/polymer composites having compositionally graded interfaces |
| CN1802420A (en) * | 2003-06-06 | 2006-07-12 | 阿克佐诺贝尔国际涂料股份有限公司 | Non-stick powder coating |
| CN101613511A (en) * | 2009-07-15 | 2009-12-30 | 天津工业大学 | A kind of ptfe composite and preparation method thereof |
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2011
- 2011-08-18 CN CN2011102363932A patent/CN102627820A/en active Pending
Patent Citations (5)
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| US4592782A (en) * | 1983-03-14 | 1986-06-03 | Ae Plc | Composition of matter incorporating polyether ether ketone |
| EP0367629A1 (en) * | 1988-11-04 | 1990-05-09 | BICC Public Limited Company | Fluorocarbon polymer compositions and articles, especially electric cables, with markings on a surface thereof. |
| CN1802420A (en) * | 2003-06-06 | 2006-07-12 | 阿克佐诺贝尔国际涂料股份有限公司 | Non-stick powder coating |
| US20060029795A1 (en) * | 2004-08-09 | 2006-02-09 | University Of Florida Research Foundation, Inc. | Multi-layer low friction and low wear polymer/polymer composites having compositionally graded interfaces |
| CN101613511A (en) * | 2009-07-15 | 2009-12-30 | 天津工业大学 | A kind of ptfe composite and preparation method thereof |
Non-Patent Citations (2)
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| 李文忠等: "聚合物填充聚四氟乙烯复合材料的摩擦磨损性能", 《润滑与密封》 * |
| 林有希等: "CaCO3晶须和PTFE对PEEK干摩擦性能的影响", 《材料研究学报》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103102628A (en) * | 2013-02-26 | 2013-05-15 | 无锡市祥健四氟制品有限公司 | Components of polyether-ether-ketone modified polytetrafluoroethylene sheet |
| CN106084581A (en) * | 2016-06-20 | 2016-11-09 | 安徽荣达阀门有限公司 | The carbon nanotube/polytetrafluoroethylcomposite valve sealing ring that a kind of polyether sulfone is filled |
| CN106398058A (en) * | 2016-06-20 | 2017-02-15 | 安徽荣达阀门有限公司 | Carbon nanotube-polytetrafluoroethylene valve sealing ring filled with polyether-ether-ketone |
| CN105936724A (en) * | 2016-06-22 | 2016-09-14 | 芜湖市长江起重设备制造有限公司 | Polyether-ether-ketone modified polytetrafluoroethylene material and preparation method thereof |
| CN106564204A (en) * | 2016-08-31 | 2017-04-19 | 浙江德清科赛塑料制品有限公司 | Machining method for PTFE anti-fatigue membrane for butterfly valve |
| CN109603305A (en) * | 2019-01-10 | 2019-04-12 | 河南德源净化装备有限公司 | A kind of production method of the sintered metal mesh of filtering corrosion resistance |
| CN110128768A (en) * | 2019-04-24 | 2019-08-16 | 镇江市营房塑电有限公司 | A kind of polytetrafluoroethylene sealing gasket piece |
| CN110183799A (en) * | 2019-05-08 | 2019-08-30 | 镇江市营房塑电有限公司 | A kind of gasket seal board and preparation method thereof |
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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: 20120808 |