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Preparation method of double-sided antistatic protective film for graphite sheet calendering

A graphite sheet, anti-static technology, applied in chemical instruments and methods, inorganic chemistry, coatings, etc., can solve the problems of non-calendering surface electrostatic effect, high cost of protective film, etc., and achieve stable peeling force, low cost, and light transmission. high rate effect

Inactive Publication Date: 2017-09-12
苏州美辰新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing anti-static protective films for graphite sheet calendering are all single-sided anti-static, and in the process of graphite sheet calendering, static electricity often occurs on the non-calendered surface, and the base material of the protective film itself is mostly non-conductive PET, PVC, etc. Polymer materials require anti-static treatment on both sides, and the cost of anti-static treatment on both sides of the protective film is high

Method used

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Examples

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Comparison scheme
Effect test

Embodiment Construction

[0023] The specific implementation of the present invention will be further described below in conjunction with the examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0024] The technical scheme of concrete implementation of the present invention is:

[0025] A preparation method of a double-sided antistatic protective film for graphite sheet calendering, comprising the steps of:

[0026] 1) Preparation of nano-silica: Take 1800ml of concentrated sodium hydroxide solution and place it in a reaction kettle, heat it in a water bath to 50°C, keep the temperature constant, stir at a constant speed, and slowly add 120-150ml of SiCl dropwise 4 Liquid, the dropping speed is 20~30d / min, while stirring continuously with a magnetic energy stirrer, after adding SiCl 4 Afterwards, continue to stir for 20 minutes, let stand to cool down, drop to room t...

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Abstract

The invention discloses a preparation method of double-sided antistatic protective film for graphite sheet calendering; the preparation method comprises the steps of 1) preparing nano white carbon black; 2) preparing an antistatic agent; 3) preparing a coating liquid; 4) applying the coating liquid to PET (polyethylene terephthalate) film, and drying; 5) coating one side of the PET film with the antistatic agent, and drying; 6) coating the other side of the PET film with the antistatic agent, and drying to obtain the double-sided antistatic protective film for graphite sheet calendering. The double-sided antistatic protective film for graphite sheet calendering, having more stable peeling force and higher transparency, is prepared herein; the double-sided antistatic protective film for graphite sheet calendering is low in cost and good in environmental friendliness. The double-sided antistatic protective film for graphite sheet calendering prepared herein has double-side antistatic property, with peeling force controlled to 4-9 g and transparency not less than 85%.

Description

technical field [0001] The invention relates to a preparation method of a double-sided antistatic protective film for graphite sheet calendering. Background technique [0002] With the trend of high integration and miniaturization of electronic products, the application of graphite sheets in the electronics industry is increasing, and graphite sheet calendering, as a pre-step of graphite sheet application, has more and more stringent process requirements. The anti-static requirements of electronic products are getting higher and higher, and static electricity has always been a difficult problem in the rolling of graphite sheets, so various anti-static protective films have been born. The existing anti-static protective films for graphite sheet calendering are all single-sided anti-static, and in the process of graphite sheet calendering, static electricity often occurs on the non-calendered surface, and the base material of the protective film itself is mostly non-conductive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C01B33/18C09D183/06C09D7/12C08L67/02
CPCC01B33/186C01P2004/62C08J5/18C08J7/0423C08J2367/02C08J2483/06C08K5/5435C09D183/06
Inventor 唐月方
Owner 苏州美辰新材料有限公司
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