CN102627818A - Floating bead filled and modified PTFE resinoid - Google Patents
Floating bead filled and modified PTFE resinoid Download PDFInfo
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- CN102627818A CN102627818A CN2011101221667A CN201110122166A CN102627818A CN 102627818 A CN102627818 A CN 102627818A CN 2011101221667 A CN2011101221667 A CN 2011101221667A CN 201110122166 A CN201110122166 A CN 201110122166A CN 102627818 A CN102627818 A CN 102627818A
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- pearl
- resinoid
- modified ptfe
- ptfe
- filling
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Abstract
The invention relates to the technical field of high-molecular materials and specifically to floating bead filled and modified PTFE resinoid, which is prepared by low and high speed mixing, compression molding, free sintering and peeling processing of PTFE resinoid, floating beads and pigments. The floating bead filled and modified PTFE resinoid has good medium resistance, anti-compression performance, high and low temperature resistance, wear resistance and cold flow creep resistance, especially good flexibility and high compressibility, and can be widely used to manufacture various middle and low voltage static seal type products such as pipelines, static seal pads like flanges and the like in chemical and pharmaceutical industries.
Description
Technical field
The present invention relates to technical field of polymer materials, is a kind of filling-modified PTFE resinoid of pearl that floats.
Background technology
Tetrafluoroethylene is being undertaken the mission of functional novel material as a member of special engineering plastics family; Have excellent electric insulation property, chemicalstability, erosion resistance; It is one of corrosion resistance nature best materials in the world today; Except that molten metal sodium and liquid fluorine, other all pharmaceutical chemicalss of ability boil also in chloroazotic acid and do not change; Be widely used in field, stopping property, high lubricated not viscosity, electrical insulating property and good anti-aging endurance, the heatproof excellence of antiacid alkali of various needs and organic solvent, can long term operation under+250 ℃ to-180 ℃ temperature.Simultaneously, tetrafluoroethylene also has certain shortcoming: not wear-resisting, easy creep, resistance to compression difference or the like.
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 effect of heat insulation, good flame retardant effect; Good anti-compression properties; Good creep-resistant property not too influences other performance of material again, makes material have a kind of filling-modified PTFE resinoid of pearl that floats of lower proportion and production cost.
Invention realizes through following technical scheme:
A kind of filling-modified PTFE resinoid of pearl that floats, it is characterized in that: its component and parts by weight are respectively:
100 parts of PTFE resinoids;
Float 3～20 parts on pearl;
0.3～5 part of pigment.
And described a kind of filling-modified PTFE resinoid of pearl that floats 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 filling-modified PTFE resinoid of pearl that floats is characterized in that: described to float pearl be a kind of fly ash hollow ball that can bubble through the water column, is pearl, and wall approaches hollow, the inorganic non-metallic microballon of diameter between the 1-100 micron.
And described a kind of filling-modified PTFE resinoid of pearl that floats 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 float the filling-modified PTFE resinoid of pearl; Have good media-resistant, resistance to compression, high-low temperature resistant, wear resistance and cold-resistant stream creep property; Particularly the snappiness spy is good; Compressibility is high, adaptable across the various mesolow static seal based articles of manufacturing, such as: static seal pads such as the pipeline in chemistry and the pharmaceutical industry, flange etc.
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: pad is used in seal for pipe joints
PTFE 100kg
Float pearl 20kg
Chrome yellow 0.3kg
With the PTFE resin, float pearl, chrome yellow and put into high mixer successively, at first low speed mixing 1-2 minute, blowing after mixed at high speed 1-2 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, be peeled into sheet material through the wide cut peeler at last, with the moulding of stamping knife punch die.
Claims (4)
1. one kind is floated the filling-modified PTFE resinoid of pearl, and it is characterized in that: its component and parts by weight are respectively:
100 parts of PTFE resinoids;
Float 3～20 parts on pearl;
0.3～5 part of pigment.
2. a kind of filling-modified PTFE resinoid of pearl that floats according to claim 1 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 filling-modified PTFE resinoid of pearl that floats according to claim 1; It is characterized in that: described to float pearl be a kind of fly ash hollow ball that can bubble through the water column; Be pearl; Wall approaches hollow, 1～100 micron of particle diameter, advantage such as have that particle is thin, hollow, light weight, high-strength, wear-resisting, high temperature resistant, insulation insulation, insulation are fire-retardant.
4. a kind of filling-modified PTFE resinoid of pearl that floats according to claim 1 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 |
|---|---|---|---|
| CN2011101221667A CN102627818A (en) | 2011-05-12 | 2011-05-12 | Floating bead filled and modified PTFE resinoid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101221667A CN102627818A (en) | 2011-05-12 | 2011-05-12 | Floating bead filled and modified PTFE resinoid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102627818A true CN102627818A (en) | 2012-08-08 |
Family
ID=46586226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101221667A Pending CN102627818A (en) | 2011-05-12 | 2011-05-12 | Floating bead filled and modified PTFE resinoid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102627818A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3015604A (en) * | 1957-05-02 | 1962-01-02 | Du Pont | Porous polytetrafluoroethylene article containing glass microballoons |
| EP0304699A2 (en) * | 1987-08-28 | 1989-03-01 | Junkosha Co. Ltd. | Composite material of low dielectric constant and method of producing it |
| JPH02140256A (en) * | 1988-11-18 | 1990-05-29 | Junkosha Co Ltd | Composite material having low dielectric constant |
| US4961891A (en) * | 1988-10-04 | 1990-10-09 | Garlock, Inc. | Method of making high compressibility gasket material |
| CN101386701A (en) * | 2007-09-14 | 2009-03-18 | 中国科学院兰州化学物理研究所 | A kind of wear-resistant self-lubricating composite material and preparation method thereof |
| CN101921427A (en) * | 2010-08-06 | 2010-12-22 | 奇瑞汽车股份有限公司 | Functional high-polymer decorative composite material and preparation method thereof |
-
2011
- 2011-05-12 CN CN2011101221667A patent/CN102627818A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3015604A (en) * | 1957-05-02 | 1962-01-02 | Du Pont | Porous polytetrafluoroethylene article containing glass microballoons |
| EP0304699A2 (en) * | 1987-08-28 | 1989-03-01 | Junkosha Co. Ltd. | Composite material of low dielectric constant and method of producing it |
| US4961891A (en) * | 1988-10-04 | 1990-10-09 | Garlock, Inc. | Method of making high compressibility gasket material |
| JPH02140256A (en) * | 1988-11-18 | 1990-05-29 | Junkosha Co Ltd | Composite material having low dielectric constant |
| CN101386701A (en) * | 2007-09-14 | 2009-03-18 | 中国科学院兰州化学物理研究所 | A kind of wear-resistant self-lubricating composite material and preparation method thereof |
| CN101921427A (en) * | 2010-08-06 | 2010-12-22 | 奇瑞汽车股份有限公司 | Functional high-polymer decorative composite material and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张明强等: "空心玻璃微珠／聚四氟乙烯复合材料的性能研究", 《塑料工业》, vol. 36, no. 9, 30 September 2008 (2008-09-30) * |
| 李云凯等: "空心微珠简介", 《兵器材料科学与工程》, vol. 25, no. 3, 30 May 2002 (2002-05-30) * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120808 |