Polytetrafluoroethylene membrane and fiber prepared from same

A technology of polytetrafluoroethylene film and polytetrafluoroethylene, which is applied in fiber treatment, fiber chemical characteristics, rayon manufacturing, etc., can solve problems such as broken threads, and achieve the effect of not being easy to absorb dust

Active Publication Date: 2012-05-02
ZHEJIANG KERTICE HI TECH FLUOR MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the present inventors found in actual preparation that when the polytetrafluoroethylene film prepared by this method is slitting to prepare fibers, there will often be broken lines.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The polytetrafluoroethylene film is made from 15 parts by weight of kerosene, 5 parts by weight of surfactant and 80 parts by weight of polytetrafluoroethylene resin powder. The surfactant is a mixture of anionic surfactant and nonionic surfactant; and the mass ratio of anionic surfactant and nonionic surfactant is 1:4. The anionic surfactant is magnesium stearate, and the nonionic surfactant is polyoxyethylene 40 stearate.

[0026] The above-mentioned polytetrafluoroethylene membrane is manufactured by the following method:

[0027] ① Mixing: Mix part of the surfactant into the PTFE resin powder, mix the remaining part of the surfactant into the kerosene, then mix the kerosene mixed with the surfactant into the PTFE resin powder, and then carry out preliminary mixing; the addition of kerosene is 15% of the total mass, and the addition of surfactant is 5 to 10wt% of the total mass;

[0028] ② Screening: Screen the above-mentioned mixture with a 30-mesh sieve;

[0029...

Embodiment 2

[0035] The polytetrafluoroethylene film is made from 18 parts by weight of gasoline, 8 parts by weight of surfactant and 74 parts by weight of polytetrafluoroethylene resin powder. The surfactant is a mixture of anionic surfactant and nonionic surfactant; and the mass ratio of anionic surfactant and nonionic surfactant is 1:4. The anionic surfactant is calcium oleate, and the nonionic surfactant is Pingping plus O.

[0036] The above-mentioned polytetrafluoroethylene membrane is manufactured by the following method:

[0037] ① Mixing: Mix part of the surfactant into the PTFE resin powder, mix the remaining part of the surfactant into the gasoline, and then mix the gasoline mixed with the surfactant into the PTFE resin powder, and then carry out preliminary The mixing of gasoline; the addition of gasoline is 18% of the total mass, and the addition of surfactant is 8wt% of the total mass;

[0038] ② Screening: Screen the above-mentioned mixture with a 30-mesh sieve;

[0039] ...

Embodiment 3

[0045] The polytetrafluoroethylene film is made from 20 parts by weight of diesel oil, 10 parts by weight of surfactant and 70 parts by weight of polytetrafluoroethylene resin powder. The surfactant is a mixture of anionic surfactant and nonionic surfactant; and the mass ratio of anionic surfactant and nonionic surfactant is 1:5. The anionic surfactant is magnesium laurate, and the nonionic surfactant is Benze 35.

[0046] The above-mentioned polytetrafluoroethylene membrane is manufactured by the following method:

[0047] ① Mixing: Mix part of the surfactant into the PTFE resin powder, mix the remaining part of the surfactant into the diesel oil, then mix the diesel oil mixed with the surfactant into the PTFE resin powder, and then carry out preliminary The mixing of diesel oil; the addition of diesel oil is 20% of the total mass, and the addition of surfactant is 10wt% of the total mass;

[0048] ② Screening: use a 35-mesh sieve to screen the above mixture;

[0049] ③ An...

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PUM

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Abstract

The invention relates to a polytetrafluoroethylene membrane and fiber prepared from the same, belonging to the technical field of manufacture of the polytetrafluoroethylene membrane. The polytetrafluoroethylene membrane is prepared by the following raw materials in percent by weight: 15-20wt% of lubricating oil, 5-10wt% of surfactant and the balance polytetrafluoroethylene resin powder. The polytetrafluoroethylene fibrous membrane prepared by the invention has the advantage that the static electricity can not be accumulated, has the technical effect that the line breaking can not be generatedin slitting and also has the advantage of difficult dust absorption.

Description

technical field [0001] The invention relates to a polytetrafluoroethylene film and a fiber prepared by using the film, and belongs to the technical field of polytetrafluoroethylene film manufacture. Background technique [0002] Chemical fibers are usually formed by extruding the polymer compound that has been made into a colloidal solution or melted into a melt through the fine holes of the spinneret of the spinning machine. However, due to the special chemical properties of polytetrafluoroethylene, it is difficult to produce by the above-mentioned method, and the strength of the chemical fiber produced reluctantly is also very low. [0003] In recent years, the PTFE micropowder has been preformed, extruded, calendered, and stretched to form a PTFE film, and then cut into fibers by mechanical processing. A kind of manufacturing method of polytetrafluoroethylene long fiber as described in the Chinese invention patent of application number 200610026648.1, it selects 100% pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18B29C69/02B29C47/92B29C47/12B29C55/14D01F6/48D01F1/10D01D5/42B29C48/30B29C48/92
CPCB29C48/08
Inventor 徐志梁罗文春姜学梁
Owner ZHEJIANG KERTICE HI TECH FLUOR MATERIAL
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