Long-acting antistatic polyimide film

A polyimide film, antistatic technology, applied in the field of long-term antistatic polyimide film and its preparation, can solve the problem of polyimide film static electricity and so on

Active Publication Date: 2016-04-20
JIANGSU YABAO INSULATION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to overcome the defects in the above-mentioned prior art, by adding an antistatic composition and a catalyst in the preparation process of the polyimide film, and fundamentally solve the electrostatic problem of the polyimide film

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A long-term antistatic polyimide film, the polyimide film is polyamic acid imide obtained by polymerization reaction of aromatic diamine and tetracarboxylic dianhydride, and antistatic agent is added to flow Extended. The added amount of antistatic agent is 1% of the total weight of aromatic diamine and tetracarboxylic dianhydride. The antistatic agent is a composition composed of the following parts by weight: 9 parts of octadecyl imidazoline, 7 parts of zinc acetate, 5 parts of lauryl ether, 6 parts of butyl titanate and 1 part of liquid paraffin.

[0022] The preparation method of above-mentioned long-acting antistatic polyimide film is carried out according to the following steps:

[0023] (1) According to parts by weight, mix equal parts by weight of m-phenylenediamine and 1200 parts of pyromellitic dianhydride, add 100 parts of catalyst triethylamine, heat to 60°C to initiate polymerization, and stir for 12 hours to obtain slurry;

[0024] (2) Add 9 parts of oc...

Embodiment 2

[0028] A long-term antistatic polyimide film, the polyimide film is polyamic acid imide obtained by polymerization reaction of aromatic diamine and tetracarboxylic dianhydride, and antistatic agent is added to flow Extended. The added amount of the antistatic agent is 0.5% of the total weight of the aromatic diamine and tetracarboxylic dianhydride. The antistatic agent is a composition composed of the following parts by weight: 9 parts of octadecyl imidazoline, 10 parts of epoxy resin and 2 parts of methylene dithiocyanate.

[0029] The preparation method of above-mentioned long-acting antistatic polyimide film is carried out according to the following steps:

[0030] (1) According to parts by weight, 1100 parts of p-phenylenediamine and 3,3',4,4'-biphenyltetracarboxylic dianhydride in equal parts by weight are mixed, and 100 parts of catalyst triethylamine are added, heated to Initiate the polymerization reaction at 70°C, stir for 18 hours, and prepare the slurry;

[0031]...

Embodiment 3

[0035] A long-term antistatic polyimide film, the polyimide film is polyamic acid imide obtained by polymerization reaction of aromatic diamine and tetracarboxylic dianhydride, and antistatic agent is added to flow Extended. The added amount of the antistatic agent is 2% of the total weight of aromatic diamine and tetracarboxylic dianhydride. The antistatic agent is 9 parts of octadecyl imidazoline, 7 parts of zinc acetate, 5 parts of lauryl ether, 6 parts of butyl orthotitanate and 1 part of rosinamine.

[0036] The preparation method of above-mentioned long-acting antistatic polyimide film is carried out according to the following steps:

[0037] (1) Mix 1,300 parts of 3,3'-dimethylbenzidine and 3,3',4,4'-benzophenone tetracarboxylic dianhydride in equal parts by weight, and add catalyst three 100 parts of ethylamine, heated to 40°C to initiate a polymerization reaction, stirred for 18 hours, and prepared a slurry;

[0038] (2) Add 9 parts of octadecyl imidazoline, 7 part...

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PUM

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Abstract

The invention discloses a long-acting antistatic polyimide film. The polyimide film is prepared by enabling polymerization reaction of aromatic diamine and tetracarboxylic dianhydride to obtain an imidized product of polyamide acid; adding an antistatic agent; performing tape-casting. The polyimide film is 105-107 ohm in surface resistance, generates little static electricity during industrial use and exerts no effect on normal use of a material; in the service life, the surface resistance does not change, and the polyimide film has antistatic effect for a long time.

Description

technical field [0001] The invention relates to a polyimide film, in particular to a long-acting antistatic polyimide film and a preparation method thereof. Background technique [0002] Static electricity is a kind of charge in a static state. Static electricity is more common in daily life, such as electric sparks generated during the process of removing sweaters, and electric sparks generated by opening metal doorknobs. The presence of static electricity in industrial production often causes relatively great harm. For example, when the aircraft body rubs against air, water vapor, dust and other particles, the aircraft will be electrified. If no measures are taken, it will seriously interfere with the normal operation of the aircraft radio equipment, making the aircraft deaf and blind; The static electricity between the pages will make the paper stick together, making it difficult to separate, which will cause trouble for printing; in the pharmaceutical factory, due to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/08C08L91/06C08L63/00C08K5/3445C08K5/098C08K5/06C08K5/10C08K5/36C08K5/17C08K5/5317C08K5/11C08K5/3465C08K13/02C08K3/34C08J5/18C08G73/10
CPCC08G73/1007C08J5/18C08J2379/08C08K3/346C08K5/06C08K5/098C08K5/10C08K5/11C08K5/17C08K5/3445C08K5/3465C08K5/5317C08K13/02C08K2201/017C08L79/08C08L2201/04C08L2203/16C08L91/06C08L63/00C08K5/36
Inventor 徐伟伟王勇王世林张克杰李亚平梁永飞
Owner JIANGSU YABAO INSULATION MATERIAL
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