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

Method for preparing polyimide film with low surface energy

A technology of polyimide film and low surface energy, which is applied in the field of preparation of low surface energy polyimide film, can solve the problems of expensive professional equipment, complicated operation, low surface energy, etc., and achieve low synthesis cost and easy raw materials Good film-forming effect

Active Publication Date: 2014-10-01
甘肃中安瑞科科技有限公司
View PDF1 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For low surface energy polyimide materials, low surface energy coatings can be prepared on polyimide films by techniques such as plasma polymerization to obtain low surface energy polyimide films (Langmuir 1999, 15, 3395; Chemical Materials 2000, 12, 2031; Advanced Materials 2002, 14, 426), but these preparation methods require expensive professional equipment and complicated operations

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Preparation of polyimide film

[0019] Add 0.2904g (0.001mol) aromatic diamine monomer 2-(5-norbornene)-bis(p-aminophenyl) Methane, 0.3082g (0.001mol) 4,4'-oxydiphthalic anhydride monomer and 3ml N-methylpyrrolidone were dissolved by electromagnetic stirring, and stirred at room temperature under nitrogen protection for 24 hours to obtain brown polyimide Viscous solution of amines. The polyimide viscous solution was coated on the clean glass surface, and baked in an oven at 120° C. for 1 hour to obtain a brown polyimide film.

[0020] Preparation of Low Surface Energy Polyimide Films

[0021] Put the above polyimide film into a 10 ml supported test tube, add 20 mg benzyl-bis(tricyclohexylphosphine) base-ruthenium dichloride Grubbs catalyst and 5 ml dichloro Methane, reacted at room temperature for 20 min, and then quickly washed with dichloromethane to wash away the catalyst adsorbed on the surface to obtain a ruthenium-functionalized polyimide film. Then put the fi...

Embodiment 2

[0024] Preparation of polyimide film

[0025] Add 0.2904g (0.001mol) 2-(5-norbornenyl)-bis(p-aminophenyl)methane, 0.4442g (0.001mol) 4, 4'-(hexafluoroisopropyl)diphthalic anhydride and 4.5ml of N-methylpyrrolidone were dissolved by electromagnetic stirring, and reacted with stirring at room temperature for 36 hours under the protection of nitrogen to obtain a viscous solution of tan polyimide. Apply this viscous solution on a clean glass surface and bake in an oven at 120°C for 1 hour to obtain a tan polyimide film.

[0026] Preparation of Low Surface Energy Polyimide Films

[0027] Put the above polyimide film into a 10 ml supported test tube, add 15 mg benzyl-bis(tricyclohexylphosphine) base-ruthenium dichloride Grubbs catalyst and 5 ml dichloromethane under the protection of argon , after reacting at room temperature for 20 min, quickly wash with dichloromethane to wash away the catalyst adsorbed on the surface of the film, then put it into another test tube, and add 0.65...

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

PropertyMeasurementUnit
Surface energyaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a polyimide film with low surface energy. The method comprises the following steps of reacting aromatic diamine containing a norbornene structure with aromatic tetracarboxylic acid dianhydride at room temperature, coating a film and baking to obtain polyimide film, and then in the presence of the Grubbs catalyst, initiating perfluoroalkyl esterification of norbornene by virtue of a surface initiated polymerization ring-opening metathesis polymerization method to prepare the polyimide film with low surface energy. The polyimide film with low surface energy prepared by the method has the characteristics of good film-forming property, optical transparency and heat resistance. The film can be used as anti-oil creeping, anti-fouling and self-cleaning materials.

Description

technical field [0001] The invention relates to a preparation method of an anti-crawling and self-cleaning material, specifically, the invention relates to a preparation method of a low surface energy polyimide film. Background technique [0002] Polyimide is a kind of polymer material with excellent comprehensive performance, which is widely used in many fields. Since the industrialization of DuPont in the United States in the 1960s, due to its excellent chemical stability, heat resistance and insulation, polyimide has been widely used as a heat-resistant material and electronic packaging material in the aerospace and microelectronics industries. Applications. [0003] In order to further expand the application of polyimide, especially as a base material in anti-fouling, anti-fouling, anti-oil crawling, etc., it is necessary to perform surface functionalization on the basis of its excellent comprehensive properties to endow it with special surface properties. . However, ...

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
IPC IPC(8): C08J7/16C08J7/12C08J5/18C08L79/08C08G73/12
Inventor 叶谦王晓龙周峰刘维民
Owner 甘肃中安瑞科科技有限公司
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