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Preparation method of novel high-transparency polyimide material

A polyimide and transparency technology, which is applied in the field of preparation of new high-transparency polyimide materials, can solve the problems of poor transparency and difficulty in exerting application value of polyimide materials.

Inactive Publication Date: 2019-01-18
孝感寰誉新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The polyimide material prepared by the above invention and technology has the disadvantage of poor transparency, and it is difficult to exert its due application value in solar cell substrates, liquid crystal displays, optical waveguide materials, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of a new polyimide material with high transparency, the preparation technical scheme is as follows:

[0020] According to the mass fraction, 9.3 parts of 1,1-methylenebis(4-aminocyclohexane), 6.6 parts of 1,3-cyclohexanedimethylamine, 34 parts of functional diamine monomer, 29 parts The carboxylic acid dianhydride monomer, 0.6 parts of imidization catalyst and 220 parts of m-cresol were added to the reaction kettle, and stirred for 80 minutes under the protection of nitrogen; then the temperature was controlled to 60 ° C, stirred evenly, and then the temperature was controlled to 160 ℃, reacted for 20 hours; then added 0.03 parts of tetrakis(methylthio)tetrathiafulvalene, 0.1 parts of poly[[octahydro-5-(methoxycarbonyl)-5-methyl-4,7-methylene -1H-indene-1,3-diyl]-1,2-ethanediyl], 0.05 parts of 1-ethyl-3-guanidinothiourea hydrochloride, 0.2 parts of cetyl glyceryl ether / glycerin Copolymer, temperature controlled at 110°C, reacted for 2 hours; after ...

Embodiment 2

[0028] A preparation method of a new polyimide material with high transparency, the preparation technical scheme is as follows:

[0029] According to the mass fraction, 5.7 parts of 1,1-methylenebis(4-aminocyclohexane), 3.8 parts of 1,3-cyclohexanedimethylamine, 25 parts of functional diamine monomer, 20 parts The carboxylic acid dianhydride monomer, 0.1 part of imidization catalyst and 180 parts of m-cresol were added to the reaction kettle, under the protection of nitrogen, stirred for 40 minutes; then the temperature was controlled to 40 ° C, stirred evenly, and then the temperature was controlled at 140 ℃, reacted for 15h; then added 0.01 part of tetrakis(methylthio)tetrathiafulvalene, 0.01 part of poly[[octahydro-5-(methoxycarbonyl)-5-methyl-4,7-methylene -1H-indene-1,3-diyl]-1,2-ethanediyl], 0.01 parts of 1-ethyl-3-guanidinothiourea hydrochloride, 0.1-0.9 parts of cetyl glyceryl ether / glycerin copolymer, temperature controlled at 100°C, reacted for 1h; after the reacti...

Embodiment 3

[0037] A preparation method of a new polyimide material with high transparency, the preparation technical scheme is as follows:

[0038] According to the mass fraction, 16.3 parts of 1,1-methylenebis(4-aminocyclohexane), 10.6 parts of 1,3-cyclohexanedimethylamine, 43 parts of functional diamine monomer, 38 parts The carboxylic acid dianhydride monomer, 1.2 parts of imidization catalyst and 250 parts of m-cresol were added to the reaction kettle, and stirred for 120 minutes under the protection of nitrogen; then the temperature was controlled to 80 ° C, stirred evenly, and then the temperature was controlled for 200 ℃, reacted for 30h; then added 0.1 part of tetrakis(methylthio)tetrathiafulvalene, 0.2 part of poly[[octahydro-5-(methoxycarbonyl)-5-methyl-4,7-methylene -1H-indene-1,3-diyl]-1,2-ethanediyl], 0.1 part of 1-ethyl-3-guanidinothiourea hydrochloride, 0.9 part of cetyl glyceryl ether / glycerin Copolymer, temperature controlled at 120°C, reacted for 4 hours; after the rea...

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Abstract

The invention relates to the field of material preparation, in particular to a preparation method of a novel high-transparency polyimide material. According to the preparation method of the novel high-transparency polyimide material, disclosed by the invention, a functional diamine monomer containing isopropyl and fluorine-containing groups in molecules is synthesized from 2-isopropylaniline and 2-fluoro-4-(trifluoromethyl)benzaldehyde under the catalysis of hydrochloric acid; the diamine monomer is mixed with 1,1-methylenebis(4-aminocyclohexane) and 1,3-cyclohexyldimethylamine, then a mixturereacts with a carboxylic dianhydride monomer, and a film is prepared to obtain the novel high-transparency polyimide material. The novel high-transparency polyimide material is a material having a very high application value in solar cell substrates, liquid crystal displays, optical waveguide materials and the like.

Description

technical field [0001] The invention relates to the field of material preparation, in particular to a preparation method of a new polyimide material with high transparency. Background technique [0002] Polyimide is a kind of high molecular polymer with excellent performance, and its molecular chain is characterized by containing imide ring. Polyimide has outstanding mechanical properties, excellent temperature resistance properties, not only low temperature resistance but also maintains strength at high temperatures, and has good electrical properties. It is a high-performance polymer material with excellent comprehensive properties. In some high-tech There are immeasurable application prospects in the technical field. [0003] 201510733059.6 discloses a method for synthesizing polyimide, which belongs to the field of polymer materials. The method comprises: polymerizing dianhydride and diamine in an ionic liquid; mixing the polyimide prepolymer solution with methanol or ...

Claims

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Application Information

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IPC IPC(8): C08G73/10
CPCC08G73/1057C08G73/1042
Inventor 王大可王光辉
Owner 孝感寰誉新材科技有限公司