Polyimide composite glue, black matte polyimide material and its preparation and application

A technology of polyimide and composite glue, applied in the direction of sustainable manufacturing/processing, climate sustainability, chemical industry, etc., can solve the problems of limiting the diversity of processing methods, poor solubility, etc., and achieve good storage stability , Improve processing performance, good overall performance

Active Publication Date: 2022-05-17
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The black polyimide material prepared by this patent has good mechanical properties and insulation properties, but its solubility in solvents is poor, which limits the diversity of its processing methods to a certain extent

Method used

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  • Polyimide composite glue, black matte polyimide material and its preparation and application
  • Polyimide composite glue, black matte polyimide material and its preparation and application
  • Polyimide composite glue, black matte polyimide material and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Add 10.81g of dihydroxybenzidine, 13.60g of 3,3'-dicarboxybenzidine and 335.64g of dry DMF into a 1000ml three-necked flask, and stir in an ice-water bath for 0.5h. After the diamine is completely dissolved, slowly add 20.12g of 3, 6-diphenoxy-pyridine and 14.71g of 3-phenyl-phthalic anhydride, after the reaction is complete, add 20g of a chemical imidization reagent with a mass ratio of acetic anhydride / pyridine of 3:1, heat up to 165°C for reflux reaction After 3-4 hours, purify to obtain soluble polyimide glue.

[0048] Blackness value 276, tinting strength 110%, carbon black with a particle size of 17nm and dry DMF were sand-milled to obtain a carbon black slurry with a mass fraction of 10%, SiO 2 Treat it with dry DMF through a high-speed disperser to obtain a matting powder dispersion with a mass fraction of 10%. Add 5.0 g of carbon black slurry and 5.0 g of matting powder dispersion into 100.0 g of soluble polyimide glue, and disperse by mechanical stirring to p...

Embodiment 2

[0050] Add 10.81g of dihydroxybenzidine, 7.00g of 4,6-dihydroxym-phenylenediamine and 298.24g of dry DMF into a 1000ml three-neck flask, stir in an ice-water bath for 0.5h, and slowly add 20.12g of 3 , 6-Diphenoxypyrophthalic anhydride and 14.71g of 3-phenylpyrophthalic anhydride, after the reaction is complete, add 20g of a chemical imidization reagent with a mass ratio of acetic anhydride / pyridine of 3:1, heat up to 165°C and reflux React for 3-4 hours, and purify to obtain soluble polyimide glue.

[0051] Blackness value 276, tinting strength 110%, carbon black with a particle size of 17nm and dry DMF were sand-milled to obtain a carbon black slurry with a mass fraction of 10%, SiO 2 Treat it with dry DMF through a high-speed disperser to obtain a matting powder dispersion with a mass fraction of 10%. Add 5.0 g of carbon black slurry and 5.0 g of matting powder dispersion into 100.0 g of soluble polyimide glue, and disperse by mechanical stirring to prepare soluble black m...

Embodiment 3

[0053] Add 10.81g of dihydroxybenzidine, 7.00g of 2,5-dihydroxy-p-phenylenediamine and 298.24g of dry DMF into a 1000ml three-neck flask, stir in an ice-water bath for 0.5h, and slowly add 20.12g of 3 , 6-Diphenoxypyrophthalic anhydride and 14.71g of 3-phenylpyrophthalic anhydride, after the reaction is complete, add 20g of a chemical imidization reagent with a mass ratio of acetic anhydride / pyridine of 3:1, heat up to 165°C and reflux React for 3-4 hours, and purify to obtain soluble polyimide glue.

[0054] Blackness value 276, tinting strength 110%, carbon black with a particle size of 17nm and dry DMF were sand-milled to obtain a carbon black slurry with a mass fraction of 10%, SiO 2 Treat it with dry DMF through a high-speed disperser to obtain a matting powder dispersion with a mass fraction of 10%. Add 5.0 g of carbon black slurry and 5.0 g of matting powder dispersion into 100.0 g of soluble polyimide glue, and disperse by mechanical stirring to prepare soluble black ...

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Abstract

The invention discloses a polyimide composite glue, a black matte polyimide material and its preparation and application, which comprise a soluble polyimide glue and carbon black and matting powder particles uniformly dispersed therein. The above-mentioned soluble polyimide glue is obtained by polycondensation and chemical imidization of aromatic dianhydride monomers containing side groups and aromatic diamine monomers containing strong polar functional groups in an aprotic polar solvent system. The present invention is a soluble black matte polyimide composite glue with uniform dispersion of fillers and good storage stability, which can be obtained by evaporating the solvent to obtain a black polyimide glue with low light transmittance, low gloss, high mechanical strength and excellent electrical insulation. Matte polyimide material, its light transmittance ≤ 0.10%, gloss ≤ 32, tensile strength ≥ 120MPa, electrical insulation strength ≥ 150kV / mm.

Description

technical field [0001] The invention belongs to the field of polyimide materials, and in particular relates to a polyimide composite glue solution, a black matte polyimide material and its preparation and application. Background technique [0002] Polyimide (Polyimide, sometimes abbreviated as PI) refers to a class of polymers containing imide rings (-CO-N-CO-) in the main chain, and is one of the organic polymer materials with the best comprehensive performance. As a special engineering material, polyimide has been widely used in aviation, aerospace, microelectronics, nanometer, liquid crystal, separation membrane, laser and other fields. [0003] As a functional polyimide film, black polyimide film material is widely used in the electronic field, showing excellent physical, chemical properties, and electrical insulation properties. Black matte polyimide film material is a series of black polyimide film material, which is a black, opaque film with low light transmittance a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/10C08J5/18C08L79/08
CPCC08G73/1071C08G73/1042C08G73/1007C08J5/18C08J2379/08Y02P20/10
Inventor 刘婷刘亦武胡峰刘杰江乾彭军段瑨刘含茂王进许双喜
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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