Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Synthetic preparation method of multi-layer graphite nanosheets hybrid transparent polyimide film and product thereof

A technology of transparent polyimide and nano-graphite sheet, which is applied in the field of multi-layer nano-graphite hybridized transparent polyimide film and its preparation, to achieve the effects of easy identification, clear and visible color changes, and avoiding sudden accidents

Active Publication Date: 2019-01-22
JIANGSU YABAO INSULATION MATERIAL
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology has not yet been found to have a breakthrough, and it is a technology that urgently needs to be developed and applied.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Synthetic preparation method of multi-layer graphite nanosheets hybrid transparent polyimide film and product thereof
  • Synthetic preparation method of multi-layer graphite nanosheets hybrid transparent polyimide film and product thereof
  • Synthetic preparation method of multi-layer graphite nanosheets hybrid transparent polyimide film and product thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A multi-layer nano-graphite flake hybrid transparent polyimide film, comprising the following materials in parts by weight: 350 g of polyimide, 5 g of nano-graphite, and 8 g of 1,2,3,10b-tetrahydrofluoranthene.

[0025] The preparation method of the above-mentioned multi-layer nano-graphite hybrid transparent polyimide film is carried out according to the following steps:

[0026] (1) At room temperature, 1180g of 2,2-bis[4-(4-aminophenoxy)phenyl]propane and 990g of 4,4'-oxydiphthalic anhydride were added to the reactor, under nitrogen protection Add 15000g of m-cresol, stir evenly, add 500g of isoquinoline, heat up to 190°C, react for 12 hours, after cooling, pour the reaction solution into ethanol to precipitate, and make polyimide resin;

[0027] (2) 5g of nano-graphite is placed in 500g of N-methylpyrrolidone, pre-dispersed after high-temperature treatment by a high-shear disperser, and the treatment temperature is 500°C;

[0028] (3) Get prepared polyimide resin 3...

Embodiment 2

[0033] A multilayer nano-graphite flake hybrid transparent polyimide film, comprising the following materials in parts by weight: 200 g of polyimide, 3 g of nano-graphite, and 3 g of 9-ethylfluorene.

[0034] The preparation method of the above-mentioned multi-layer nano-graphite hybrid transparent polyimide film is carried out according to the following steps:

[0035] (1) At room temperature, add 1108g 2,2'-bis(trifluoromethyl)benzidine and 880g pyromellitic dianhydride to the reaction kettle, add 13000g m-cresol under the protection of nitrogen, stir well, add 400g isoquinoline, heated up to 170°C, reacted for 10 hours, after cooling, poured the reaction solution into ethanol to precipitate, and made polyimide resin;

[0036] (2) 3g of nano-graphite is placed in 300g of N-methylpyrrolidone, pre-dispersed after high-temperature treatment by a high-shear disperser, and the treatment temperature is 300°C;

[0037] (3) Get 200g of the prepared polyimide resin, add in the nano-...

Embodiment 3

[0042] A multilayer nano-graphite sheet hybridized transparent polyimide film, comprising the following materials in parts by weight: 500 g of polyimide, 12 g of nano-graphite, and 12 g of 9-benzylfluorene.

[0043] The preparation method of the above-mentioned multi-layer nano-graphite hybrid transparent polyimide film is carried out according to the following steps:

[0044] (1) At room temperature, add 1320g α, ω-bis(methylamino)polydimethylsiloxane and 1010g bisphenol A dianhydride to the reaction kettle, add 15000g m-cresol under nitrogen protection, and stir evenly , add 500g of isoquinoline, heat up to 200 ° C, react for 14 hours, after cooling, pour the reaction solution into ethanol to precipitate, and make polyimide resin;

[0045] (2) 12g of nano-graphite is placed in 600g of N-methylpyrrolidone, pre-dispersed after high-temperature treatment by a high-shear disperser, and the treatment temperature is 800°C;

[0046] (3) Add the synthesized polyimide resin and the ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a multi-layer graphite nanosheets hybrid transparent polyimide film, which comprises the following substances (by weight): 200-500 parts of polyimide, 3-12 parts of nano-graphite, and 3-12 parts of a microcrack color-changing agent. By the technical scheme of compounding nano-graphite and the microcrack color-changing agent, the material is sensitive to tiny cracked lines,exhibits observable changes by the naked eyes, and is easy to recognize. In the range of a few millimeters around the cracks, the color change is clearly visible. The security status of composite materials used in airplanes and automobiles can be effectively monitored, thus avoiding sudden accidents.

Description

technical field [0001] The invention belongs to the technical field of polyimide film preparation, and in particular relates to a multilayer nanographite sheet hybridized transparent polyimide film and a preparation method thereof. Background technique [0002] Minor damage to key components such as airplanes and cars can lead to serious consequences. At present, the small fission of components is mainly observed by human eyes and scanned by scanning equipment. Human eyes can observe large cracks, but it is difficult to effectively observe small fissions. Equipment scanning takes a lot of time, and some parts are complicated. Difficult to scan. [0003] Structural damage to materials often begins with some tiny cracks and deformations. Distortion and deformation of materials such as colored beetle shells in nature will cause color changes, because the shells contain micro-cracks and discoloration substances. If the polyimide film material is prepared Add artificial micro-c...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L79/08C08K3/04C08K5/01C08K5/03C08K5/32C08J5/18
CPCC08J5/18C08J2379/08C08K3/04C08K5/01C08K5/03C08K5/32C08K2201/011
Inventor 徐伟伟高尚林王勇祈晓东姜新陈晨
Owner JIANGSU YABAO INSULATION MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com