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Antistatic teflon film and preparation thereof

A technology of polytetrafluoroethylene and polytetrafluoroethylene powder, applied in the field of fluoroplastics manufacturing, can solve the problems of reducing commodity value, easy pollution, trouble of debris and dust, and achieve the effect of excellent antistatic performance and improved mechanical performance

Inactive Publication Date: 2011-03-16
广州市东泓氟塑料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, static electricity also has a great impact on product quality. The plastic with static electricity is easy to make the surface of the film absorb dust, etc., which is very easy to pollute. Although it can be wiped off, the processed product gives people a dirty feeling, which reduces the value of the product.
Especially in the secondary processing, the debris and dust brought in by the adsorption will cause unnecessary troubles

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Antistatic polytetrafluoroethylene film described in the present embodiment, its main raw material parts by weight consist of:

[0020] PTFE powder 100 parts

[0021] Composite antistatic agent 4 parts

[0022] Wherein the composite antistatic agent component contains the following weight composition, the composite antistatic agent is nanoscale or subnanoscale, and wherein the metal conductive powder is the percentage of the total weight of acetylene carbon black and graphite:

[0023] Acetylene carbon black: graphite 5:1 (parts by weight)

[0024] Metal conductive powder (metal magnesium powder) 5%.

[0025] The preparation method of the antistatic polytetrafluoroethylene film material described in the present embodiment is:

[0026] Firstly, mix the compound antistatic agent and polytetrafluoroethylene powder in the above ratio fully and evenly in a high-speed mixer, the speed of which is 1200 r / min, and use intermittent stirring to mix, and then the mixed material...

Embodiment 2

[0028] Antistatic polytetrafluoroethylene film described in the present embodiment, its main raw material parts by weight consist of:

[0029] PTFE powder 100 parts

[0030] Composite antistatic agent 8 parts

[0031] Wherein the composite antistatic agent component contains the following weight composition, wherein the metal conductive powder is the percentage of the total weight of acetylene carbon black and graphite:

[0032] Acetylene carbon black:graphite 5:1

[0033] Metal magnesium powder 5%.

[0034] According to the same preparation method as in Example 1, sample 2# was prepared.

Embodiment 3

[0036] Antistatic polytetrafluoroethylene film material described in the present embodiment, its main raw material parts by weight consist of:

[0037] PTFE powder 100 parts

[0038] Composite antistatic agent 12 parts

[0039] Wherein the composite antistatic agent component contains the following weight composition, wherein the metal conductive powder is the percentage of the total weight of acetylene carbon black and graphite:

[0040] Acetylene carbon black:graphite 3:1

[0041] Metal magnesium powder 8%.

[0042] According to the same preparation method as in Example 1, sample 3# was prepared.

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Abstract

The invention discloses an antistatic polyfluortetraethylene film and a preparation method thereof, the method comprises the steps of: at first, utilizing 100 parts of polyfluortetraethylene powders and 1-20 parts of an antistatic agent to be admixed in a high-speed agitator, wherein, such an antistatic agent is a composite antistatic agent consisting of acetylene carbon black, graphite, metal conductive powders and the like; then preparing an antistatic polyfluortetraethylene film by means of mixing raw materials, prepressing and performing, sintering at high temperature, film forming by turning, trimming, winding and the like. The antistatic polyfluortetraethylene film prepared according to the invention has a permanent antistatic effect and can sufficiently dissipate the charges accumulated on the surface thereof owing to friction, the added antistatic agent powders can also cooperate and reinforce therewith to a certain extent, thus overcoming the characteristics of inferior abrasive resistance and low hardness, and improving the mechanical performance of the polyfluortetraethylene.

Description

technical field [0001] The invention relates to an antistatic polytetrafluoroethylene film and a preparation method thereof, belonging to the technical field of fluoroplastics manufacturing. Background technique [0002] PTFE film is made of PTFE resin by mixing, molding into blanks, sintering, turning, trimming and winding. Polytetrafluoroethylene film has high strength, good insulation, and non-stickiness. Among fluoroplastics, polytetrafluoroethylene (PTFE) consumes the most and has the widest application. Because there is an inert fluorine-containing shell outside the PTFE molecule, it Has outstanding non-stick properties and low coefficient of friction. PTFE has excellent high and low temperature resistance and chemical stability, good electrical insulation performance, non-adhesion, weather resistance, flame retardancy and good self-lubrication. It has the reputation of "Plastic King", but it is different from other Compared with plastics, its mechanical properties a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C09K3/16C08K3/04C08L27/18C08K7/04C08K3/10C08K3/08
Inventor 郑景新段先健申士和吴东建
Owner 广州市东泓氟塑料股份有限公司
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