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Polytetrafluoroethylene film and preparation method thereof

A technology of polytetrafluoroethylene film and polytetrafluoroethylene, which is applied in the field of polytetrafluoroethylene film and its preparation, can solve the problems of poor wear resistance and high temperature resistance, waste of solar energy resources, poor light transmission, etc., and achieve good High temperature resistance, increased light transmittance, and improved service life

Inactive Publication Date: 2018-11-27
ZHONGSHAN LVLANG ADDITIVES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, PTFE film is mainly used in the field of electronics and clothing, and is generally a single-layer film with large pore size, low toughness, poor wear resistance and high temperature resistance; if it is used in the electronic field, it is mainly used for waterproofing and Insulating materials, or applied to solar panels, but most of the polytetrafluoroethylene films in the prior art are single-layer films with poor light transmission, which has caused a waste of solar energy resources to a large extent

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The embodiment of the present invention discloses a polytetrafluoroethylene film, which is made of the following raw materials in parts by weight: polytetrafluoroethylene powder 600, kerosene 20, epoxy resin 10, surfactant 1, cosolvent 1, Dispersant 1, initiator 0.5. Among them, the purity of polytetrafluoroethylene is 99.9%, the crystallinity is 80%, the particle size is 0.1 μm, and the molecular weight is 8 million; the initiator is potassium persulfate, the dispersant is ammonium perfluorocarboxylate; the cosolvent is toluene One or more of hexanediol or ethyl acetate; the surfactant is one or more of polyene succinimide, sodium perfluorooctanoate or sodium perfluorooctane sulfonate; epoxy resin It is bisphenol A type epoxy resin. The addition of epoxy resin is conducive to enhancing the curing performance of the mixture, facilitating the curing and molding of polytetrafluoroethylene powder to enhance its bonding strength, and is conducive to the favorable bonding b...

Embodiment 2

[0053] The embodiment of the present invention discloses a polytetrafluoroethylene film, which is made of the following raw materials in parts by weight: polytetrafluoroethylene powder 650, kerosene 25, epoxy resin 15, surfactant 2, cosolvent 2, Dispersant 1.5, initiator 0.75. Among them, the purity of polytetrafluoroethylene is 99.9%, the crystallinity is 75%, the particle size is 0.15 μm, and the molecular weight is 10 million; the initiator is potassium persulfate, the dispersant is ammonium perfluorocarboxylate; the cosolvent is toluene One or more of hexanediol or ethyl acetate; the surfactant is one or more of polyene succinimide, sodium perfluorooctanoate or sodium perfluorooctane sulfonate; epoxy resin It is bisphenol A type epoxy resin. The addition of epoxy resin is conducive to enhancing the curing performance of the mixture, facilitating the curing and molding of polytetrafluoroethylene powder to enhance its bonding strength, and is conducive to the favorable bond...

Embodiment 3

[0073] The embodiment of the present invention discloses a polytetrafluoroethylene film, which is made of the following raw materials in parts by weight: polytetrafluoroethylene powder 700, kerosene 30, epoxy resin 20, surfactant 3, cosolvent 3, Dispersant 2, Initiator 1. Among them, the purity of polytetrafluoroethylene is 99.9%, the crystallinity is 60%, the particle size is 0.2 μm, and the molecular weight is 12 million; the initiator is potassium persulfate, the dispersant is ammonium perfluorocarboxylate; the cosolvent is toluene One or more of hexanediol or ethyl acetate; the surfactant is one or more of polyene succinimide, sodium perfluorooctanoate or sodium perfluorooctane sulfonate; epoxy resin It is bisphenol A type epoxy resin. The addition of epoxy resin is conducive to enhancing the curing performance of the mixture, facilitating the curing and molding of polytetrafluoroethylene powder to enhance its bonding strength, and is conducive to the favorable bonding be...

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Abstract

The invention discloses a polytetrafluoroethylene film and a preparation method thereof. The polytetrafluoroethylene film is prepared from the following raw materials in parts by weight: 600-700 partsof polytetrafluoroethylene powder, 20-30 parts of kerosene, 10-20 parts of epoxy resin, 1-3 parts of surfactant, 1-3 parts of cosolvent, 1-2 parts of dispersing agent and 0.5-1 part of initiator. Thepolytetrafluoroethylene film is acquired after the raw materials are uniformly mixed and then are treated in the processes of treating with a feeding roller, performing tension adjustment, and the like. The polytetrafluoroethylene film disclosed by the invention has the advantages that the light transmittance is greatly increased and the high temperature resistance, abrasive resistance and mechanical stretching resistance are increased. Compared with the prior art, the polytetrafluoroethylene film has better performances and wider application field.

Description

technical field [0001] The invention relates to the technical field of polytetrafluoroethylene membranes, in particular to a polytetrafluoroethylene membrane and a preparation method thereof. Background technique [0002] Polytetrafluoroethylene, commonly known as "non-stick coating" or "easy-to-clean material"; is a synthetic polymer material that uses fluorine to replace all hydrogen atoms in polyethylene. This material is resistant to acid and alkali, and various organic solvents, and is almost insoluble in all solvents. At the same time, PTFE has the characteristics of high temperature resistance, and its friction coefficient is extremely low, so it can be used for lubrication, and it has also become an ideal coating for the inner layer of easy-to-clean woks and water pipes. [0003] At present, PTFE film is mainly used in the field of electronics and clothing, and is generally a single-layer film with large pore size, low toughness, poor wear resistance and high temper...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08L63/00C08L91/00C08J5/18
CPCC08J5/18C08J2327/18C08J2463/00C08J2491/00
Inventor 叶光平黄雷曹火胜
Owner ZHONGSHAN LVLANG ADDITIVES CO LTD
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