CN103627119A - Polytetrafluoroethylene damper pad - Google Patents
Polytetrafluoroethylene damper pad Download PDFInfo
- Publication number
- CN103627119A CN103627119A CN201210296991.3A CN201210296991A CN103627119A CN 103627119 A CN103627119 A CN 103627119A CN 201210296991 A CN201210296991 A CN 201210296991A CN 103627119 A CN103627119 A CN 103627119A
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- CN
- China
- Prior art keywords
- polytetrafluoroethylene
- parts
- damper pad
- zinc oxide
- ptfe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses a polytetrafluoroethylene damper pad. The polytetrafluoroethylene damper pad is composed of, by weight, 100 parts of polytetrafluoroethylene, 20-30 parts of glass fibers, 4-8 parts of tetrapod-shaped zinc oxide whiskers, 2-4 parts of bronze powder, and 1-3 parts of graphite. The polytetrafluoroethylene damper pad is characterized by high burning resistance, high heat resistance and good non-stick performance, is of high heat stability and high resilience, and especially has stable friction coefficients and high anti-compression performance.
Description
Technical field
The present invention relates to a kind of plastics, relate in particular to a kind of PTFE damping device pad.
Background technology
(Polytetrafluoroethene, english abbreviation is PTFE to tetrafluoroethylene, (being commonly called as " King "), trade name
various places are different for this trade mark Chinese translation: China's Mainland is translated into Te Fu
hong Kong is translated into special fluorine
taiwan is translated into iron fluorine
), the product of this material is generally referred to as work " non-sticky metallic coating "; It is a kind of synthetic macromolecular material that has used fluorine to replace all hydrogen atoms in polyethylene.This material has the feature of antiacid alkali resistant, anti-various organic solvents, is dissolved in hardly all solvents.Meanwhile, tetrafluoroethylene has resistant to elevated temperatures feature, and its frictional coefficient is extremely low, so after can making lubrication, also become the desirable coating of non-stick cooker and water pipe internal layer.
Tetrafluoroethylene has outstanding excellent comprehensive performance, high temperature resistant, corrosion-resistant, sticky, self-lubricating, good dielectric properties, very low frictional coefficient.As engineering plastics, can be made into polyfluortetraethylene pipe, rod, band, plate, film etc., be generally applied to corrosion resistant pipeline, container, pump, valve and radar processed that performance requriements is higher, high frequency Communication Equipment, radio component parts etc.
Vibroshock (Absorber), concussion when vibroshock is mainly used to suppress rebound after spring shock-absorbing and from the impact on road surface.When through uneven road surface, although shock-absorbing spring can filter the vibrations on road surface, spring self also has to-and-fro movement, and vibroshock is used for suppressing this spring jump.Vibroshock is too soft, and vehicle body will jump up and down, and vibroshock will bring too large resistance too firmly, hinders spring normal operation.In the retrofit process about suspension, hard vibroshock will be arranged in pairs or groups mutually with hard spring, and the hardness of spring is closely bound up with car weight, therefore the harder vibroshock of the general employing of heavier car.With draw the device that joins of shake bent axle, the torsional shaking of the bent axle that is used for contending with (be the surging force of bent axle subject cylinder igniting and the phenomenon that twists).
Vibroshock pad is a kind of of shock mitigation system, and this product requires high to the abrasion resistance properties of product material and ageing-resistant performance.
Summary of the invention
The deficiency existing for solving prior art, technical problem to be solved by this invention is to provide a kind of PTFE damping device pad.
Technical scheme of the present invention is:
A PTFE damping device pad, consists of by weight following component: 100 parts of tetrafluoroethylene, glass fibre 20-30 part, four acicular type zinc oxide crystal whisker 4-8 part, bronze powder 2-4 part, graphite 1-3 part.
Each raw material stirring is mixed, pack in mould and pressurize, pressure is less than 15Mpa; Reinstall sintering in process furnace, sintering temperature 380-390 ℃; Constant temperature keeps 2-4 hour; Pressure treatment, pressure is 8-15Mpa; Naturally cooling sizing, can make PTFE damping device pad of the present invention.
Four acicular type zinc oxide crystal whisker (Tetra-needle like ZnO whiskers is called for short T-ZnOw) was found the forties in 20th century, was succeeded in developing the earliest by PANASONIC industry in 1989.The four acicular type zinc oxide crystal whisker outward appearance loose shape powder that is white in color, microcosmic is three-dimensional four needle-like three-dimensional arrangements, and whisker has a core, from core radial direction, stretches out four needle-like crystals, every needles is single crystal primitive fiber, and the angle of wantonly two needless is 109 °.The centrosome diameter 0.7-1.4 μ m of whisker, needles base diameter 0.5-14 μ m, needles length is 3-200 μ m, image K-M shows that whisker has the monocrystalline that dislocation is little, lattice imperfection is few; Atomic absorption spectrum shows that whisker foreign matter content is few, and zinc oxide content is 99.95%, so T-ZnOw is similar to monocrystalline.It is unique whisker with stereoeffect in all whiskers so far, solid four needle-like three-dimensional structures because of its uniqueness, be readily embodied in being uniformly distributed in body material, thereby isotropically improve the physicals of material, give the functional performance of the multiple uniqueness of material simultaneously.It has the incomparable premium properties of common zinc oxide.As wear-resisting, enhancing, vibration damping, anti-skidding, noise reduction, suction ripple, the performance such as anti-aging, antistatic, antibacterial, can be widely used in the national economy fields such as national defence, electronics, chemical industry, light industry, traffic, be called as the important novel material of 21 century.
PTFE damping device pad of the present invention, has the feature of good resistance to combustion, heatproof, non-stickiness, and thermostability is strong and rebound resilience is high, has especially stable frictional coefficient and higher compressive property.
Embodiment
By embodiment, the invention will be further described, but the present invention is not limited by following examples.
Embodiment 1
Take: 100 kilograms of tetrafluoroethylene, 25 kilograms, glass fibre, 6 kilograms of four acicular type zinc oxide crystal whiskers, 3 kilograms of bronze powders, 2 kilograms, graphite.
Each raw material stirring is mixed, pack in mould and pressurize, pressure 10Mpa; Reinstall sintering in process furnace, 380 ℃ of sintering temperatures; Constant temperature keeps 3 hours; Pressure treatment, pressure is 12Mpa; Naturally cooling sizing, can make PTFE damping device pad of the present invention.
After tested:
Draw high intensity 21MPa;
Elongation at break 230%;
Shock strength 22.5KJ/m;
Flexural strength 28MPa;
Abrasion 4.2mm
3.(load 250N, linear velocity 2m/s, 3 minutes time)
PTFE damping device pad of the present invention, has the feature of good resistance to combustion, heatproof, non-stickiness, and thermostability is strong and rebound resilience is high, has especially stable frictional coefficient and higher compressive property.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (1)
1. a PTFE damping device pad, is characterized in that, following component, consists of by weight: 100 parts of tetrafluoroethylene, glass fibre 20-30 part, four acicular type zinc oxide crystal whisker 4-8 part, bronze powder 2-4 part, graphite 1-3 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210296991.3A CN103627119A (en) | 2012-08-20 | 2012-08-20 | Polytetrafluoroethylene damper pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210296991.3A CN103627119A (en) | 2012-08-20 | 2012-08-20 | Polytetrafluoroethylene damper pad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103627119A true CN103627119A (en) | 2014-03-12 |
Family
ID=50208583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210296991.3A Pending CN103627119A (en) | 2012-08-20 | 2012-08-20 | Polytetrafluoroethylene damper pad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103627119A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280987A (en) * | 2014-09-30 | 2015-01-14 | 无锡市新颖密封材料厂 | Teflon gasket containing copper powder |
| CN104650514A (en) * | 2015-03-24 | 2015-05-27 | 苏州新区华士达工程塑胶有限公司 | Novel polytetrafluoroethylene gasket material |
| CN109337264A (en) * | 2018-10-25 | 2019-02-15 | 合肥沃龙彦高分子材料有限公司 | A kind of manufacturing method of teflon gasket |
-
2012
- 2012-08-20 CN CN201210296991.3A patent/CN103627119A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280987A (en) * | 2014-09-30 | 2015-01-14 | 无锡市新颖密封材料厂 | Teflon gasket containing copper powder |
| CN104650514A (en) * | 2015-03-24 | 2015-05-27 | 苏州新区华士达工程塑胶有限公司 | Novel polytetrafluoroethylene gasket material |
| CN109337264A (en) * | 2018-10-25 | 2019-02-15 | 合肥沃龙彦高分子材料有限公司 | A kind of manufacturing method of teflon gasket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140312 |