Anti-static abrasion-resistant polytetrafluoroethylene fibers and preparation technology thereof

A technology of Teflon fiber and manufacturing process, which is applied in the direction of fiber chemical characteristics, conductive/antistatic filament manufacturing, rayon manufacturing, etc., can solve the problems of large thermal expansion coefficient, low friction coefficient, easy to generate static electricity, etc., and achieve excellent Effect of mechanical strength and high wear resistance

Inactive Publication Date: 2018-11-20
ZHONGSHAN LVLANG ADDITIVES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The industrial production of PTFE filter material has been formed in our country. PTFE fiber is used for long-fiber woven base fabric, and short fiber covers the surface of the base fabric to be processed into needle felt. PTFE fiber produced by traditional preparation technology and formula has good weather resistance And flex resistance, but the coefficient of thermal expansion is large, and it is easy to generate static electricity, low coefficient of friction, poor wear resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] An antistatic wear-resistant Teflon fiber, its raw materials are: 55 parts of polytetrafluoroethylene, 10 parts of polyimide, 6 parts of glass fiber, 4 parts of carbon fiber, 2 parts of aluminum oxide, and 3 parts of graphite , 3 parts of copper powder, 10 parts of lubricating oil.

[0037] Described antistatic wear-resistant Teflon fiber, its manufacturing process specific steps are as follows:

[0038] (1) Take polytetrafluoroethylene micropowder, polyimide, glass fiber, carbon fiber, aluminum oxide, graphite, copper powder, and carry out pre-mixing with lubricating oil;

[0039] (2) Sieve the mixed material obtained in step (1) with a 40-mesh sieve, and place the mixed material after sieving under temperature control at 45° C. for 22 hours;

[0040] (3) Put the mixed material obtained in step (2) into a mixer and stir slowly, the stirring speed is 3r / min, and the stirring time is 100min. After fully mixing, the temperature is controlled at 45°C and allowed to stand ...

Embodiment 2

[0045] An antistatic and wear-resistant Teflon fiber, its raw materials are: 56 parts of polytetrafluoroethylene, 11 parts of polyimide, 6 parts of glass fiber, 4 parts of carbon fiber, 2 parts of aluminum oxide, and 3 parts of graphite , 3 parts of copper powder, 12 parts of lubricating oil.

[0046] Described antistatic wear-resistant Teflon fiber, its manufacturing process specific steps are as follows:

[0047] (1) Take polytetrafluoroethylene micropowder, polyimide, glass fiber, carbon fiber, aluminum oxide, graphite, copper powder, and carry out pre-mixing with lubricating oil;

[0048] (2) Sieve the mixed material obtained in step (1) with a 40-mesh sieve, and place the mixed material after sieving under temperature control at 50° C. for 23 hours;

[0049] (3) Put the mixture obtained in step (2) into a mixer and stir slowly, the stirring speed is 4r / min, and the stirring time is 105min. After fully mixing, the temperature is controlled at 50°C and allowed to stand for 1...

Embodiment 3

[0054] An antistatic wear-resistant Teflon fiber, its raw materials are: 58 parts of polytetrafluoroethylene, 12 parts of polyimide, 6 parts of glass fiber, 5 parts of carbon fiber, 3 parts of aluminum oxide, and 5 parts of graphite , 3 parts of copper powder, 13 parts of lubricating oil.

[0055] Described antistatic wear-resistant Teflon fiber, its manufacturing process specific steps are as follows:

[0056] (1) Take polytetrafluoroethylene micropowder, polyimide, glass fiber, carbon fiber, aluminum oxide, graphite, copper powder, and carry out pre-mixing with lubricating oil;

[0057] (2) Sieve the mixed material obtained in step (1) with a 40-mesh sieve, and place the mixed material after sieving under temperature control at 55° C. for 24 hours;

[0058] (3) Put the mixture obtained in step (2) into a mixer and stir slowly, the stirring speed is 4r / min, and the stirring time is 110min. After fully mixing, the temperature is controlled at 55°C and allowed to stand for 18h...

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Abstract

The invention discloses anti-static abrasion-resistant polytetrafluoroethylene fibers and a preparation technology thereof. The anti-static abrasion-resistant polytetrafluoroethylene fibers comprise the following raw materials in parts by weight: 55-60 parts of polytetrafluoroethylene, 10-13 parts of polyimide, 6-7 parts of glass fibers, 4-6 parts of carbon fibers, 2-4 parts of aluminum oxide, 3-5parts of graphite, 3-4 parts of copper powder, and 10-15 parts of lubricating oil. The preparation technology comprises the following steps: mixing the raw materials; preparing a cylinder blank through an extruder; performing cold pressing to form a film; drying; sintering; stretching to obtain a fibrotic film; and cutting into silks to obtain the anti-static abrasion-resistant polytetrafluoroethylene fibers. The polytetrafluoroethylene fibers prepared by the method have the advantages of being resistant to static, high in abrasion resistance, and outstanding in mechanical strength.

Description

technical field [0001] The invention relates to the technical field of Teflon fiber preparation, and more specifically relates to a production process of antistatic and wear-resistant Teflon fiber. Background technique [0002] Teflon, also known as polytetrafluoroethylene, or PTFE for short. Polytetrafluoroethylene is a polymer compound formed by polymerization of tetrafluoroethylene. It has excellent chemical stability, corrosion resistance, sealing, high lubrication and non-stickiness, good anti-aging ability, excellent temperature resistance, etc. advantages, and it is not toxic to humans. PTFE fibers are mainly used as high-temperature dust filter bags, strong corrosion-resistant filter materials for filtering gases or liquids, packing for pumps and valves, sealing tapes, self-lubricating bearings, and reinforcement materials for perfluorinated ion-exchange membranes for alkali making And the tarpaulin of the rocket launch pad, etc. [0003] At present, the content o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F6/48D01F1/09D01F1/10
CPCD01F1/09D01F1/10D01F6/48
Inventor 孙公民孙栓魏胜利
Owner ZHONGSHAN LVLANG ADDITIVES CO LTD
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