Antistatic corrosion-resistant polyimide film and production process thereof

A technology of polyimide film and production process, which is applied in the field of polyimide film and its production process, and can solve the problems of polyimide film erosion and shortened service life

Active Publication Date: 2021-09-07
江苏胜帆电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention: the existing polyimide film will be corroded by contact with corrosive substances such as acid and alkali during long-term use, which greatly shortens its service life. Therefore, it is necessary to develop an antistatic and corrosion-resistant polyimide film. Amine film

Method used

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  • Antistatic corrosion-resistant polyimide film and production process thereof
  • Antistatic corrosion-resistant polyimide film and production process thereof
  • Antistatic corrosion-resistant polyimide film and production process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The fluorine-containing diamine monomer is prepared by the following steps:

[0050] Step S1, dissolving 0.1 mol of 4,4'-difluorodiphenyl sulfone in 145 mL of concentrated sulfuric acid with a mass fraction of 98%, adding 0.2 mmol of N-bromosuccinimide, raising the temperature to 60°C, stirring evenly, and then Cool down to room temperature and react for 6 hours, then transfer to ice water to precipitate, filter, wash the filter cake twice with deionized water and n-hexane, and then recrystallize with toluene to obtain intermediate 1;

[0051] Step S2, add 0.05mol intermediate 1, 0.10mol4-trifluoromethylbenzeneboronic acid and 280mL toluene to the three-necked flask, after stirring and dissolving, add 280mL sodium carbonate solution with a mass fraction of 15% and 2g tetrakis(triphenyl Phosphine) palladium, heated to 120° C. for reflux reaction for 10 h, and then recrystallized with toluene to obtain intermediate 2;

[0052] Step S3, add 0.015 mol of intermediate 2, 0....

Embodiment 2

[0054] The fluorine-containing diamine monomer is prepared by the following steps:

[0055] Step S1, dissolving 0.12mol of 4,4'-difluorodiphenyl sulfone in 150mL of concentrated sulfuric acid with a mass fraction of 98%, adding 0.25mmol of N-bromosuccinimide, raising the temperature to 60°C, stirring evenly, and then Cool down to room temperature and react for 6 hours, then transfer to ice water to precipitate, filter, wash the filter cake twice with deionized water and n-hexane, and then recrystallize with toluene to obtain intermediate 1;

[0056] Step S2, add 0.055mol intermediate 1, 0.12mol4-trifluoromethylbenzene boronic acid and 300mL toluene to the three-necked flask, after stirring and dissolving, add 300mL sodium carbonate solution with a mass fraction of 15% and 2.3g tetrakis(triphenylene) Phosphine) palladium, heated to 120 ° C for 11 h under reflux, and then recrystallized with toluene to obtain intermediate 2;

[0057] Step S3, add 0.017mol of intermediate 2, 0.0...

Embodiment 3

[0059] The fluorine-containing diamine monomer is prepared by the following steps:

[0060] Step S1, dissolving 0.15 mol of 4,4'-difluorodiphenyl sulfone in 155 mL of concentrated sulfuric acid with a mass fraction of 98%, adding 0.3 mmol of N-bromosuccinimide to it, raising the temperature to 60°C, stirring evenly, and then Cool down to room temperature and react for 7 hours, then transfer to ice water to precipitate, filter, wash the filter cake three times with deionized water and n-hexane, and then recrystallize with toluene to obtain intermediate 1;

[0061] Step S2, add 0.06mol intermediate 1, 0.13mol4-trifluoromethylbenzene boronic acid and 310mL toluene to the three-necked flask, after stirring and dissolving, add 310mL of sodium carbonate solution with a mass fraction of 15% and 2.5g tetrakis(triphenyl Phosphine) palladium, heated to 120 ° C for 12 hours under reflux, and then recrystallized with toluene to obtain intermediate 2;

[0062] Step S3, add 0.02mol of inte...

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Abstract

The invention discloses an antistatic corrosion-resistant polyimide film, which is prepared from the following raw materials in parts by weight: 20.5 to 31.5 parts of 3, 3 ', 4, 4'-diphenyl ether tetracarboxylic dianhydride, 8.3 to 15.5 parts of fluorine-containing diamine monomer, 10.2 to 14.8 parts of triazinyl-containing diamine monomer and 0.04 to 0.06 part of modified filler, the invention also discloses a production process of the film, which comprises the following steps: firstly, reacting a fluorine-containing diamine monomer, a triazinyl-containing diamine monomer and 3, 3', 4, 4'-diphenyl ether tetracarboxylic dianhydride to obtain a polyimide solution, secondly, compounding the polyimide solution and the modified filler to obtain a film-forming solution, and thirdly, forming a film on a glass plate by using the film-forming solution to obtain the polyimide film. According to the invention, the diamine monomer is modified, so that the film has high hydrophobicity, thermal stability and mechanical properties, and the synergistic effect of the components in the modified filler also endows the film with good antistatic property.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to an antistatic and corrosion-resistant polyimide film and a production process thereof. Background technique [0002] Thin films are a class of materials that are widely used. Compared with films made of traditional polymers, thin film materials based on high-performance polymers have excellent comprehensive properties, so they are used in high-tech fields such as microelectronics industry, energy and aerospace. . At present, there are commercialized high-performance polymer films, and the more representative one is the polyetheretherketone (PEEK)-based film developed by Victrex. Film; polyimide-based developed by Dupont series of thin films and developed by UBE and film. [0003] Among them, polyimide refers to a kind of high-performance polymer containing imide ring structure in the main chain, which is usually prepared by polycondensation reaction of diamine an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L79/08C08L91/06C08G73/10C08K9/06C08K9/02C08K7/24C08K7/06C08K7/08C07C315/04C07C317/14C07C317/22C07D251/18
CPCC08J5/18C08G73/1042C08G73/1039C08G73/1071C08G73/1064C07C315/04C07D251/18C08J2379/08C08J2491/06C08K2201/001C08K2201/017C08K9/06C08K9/02C08K7/24C08K7/06C08K7/08C07C317/14C07C317/22Y02P20/10
Inventor 邹伟民刘承伟陆妮徐海徐寅
Owner 江苏胜帆电子科技有限公司
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