Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of metal-doped blend polyimide conducting film

A technology of polyimide and conductive film, which is applied in the field of material processing to achieve high electrical conductivity, reduce surface conductivity, and prevent loss

Inactive Publication Date: 2015-01-21
QINGDAO WINCHANCE TECH
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of static electricity is quite harmful in ships, aircrafts and electronic components, and will cause extremely serious consequences such as capacitor breakdown and damage to electronic components.

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

[0012] Prepare metal-doped blended polyimide conductive film by the following method:

[0013] (1) Add 2000ml of solvent propylene oxide, 50g of 4,4'-dioctyldiphenylamine (ODA) and 20g of heterocyclic amine into the container, add 100g of pyromellitic dianhydride (PMDA) while stirring, and react for 3 hours to form Polyamic acid solution; (2) Add 0.05g of chromium oxide powder to the above solution, and perform ultrasonic treatment with an ultrasonic power of 200W, ultrasonic treatment at a temperature of 25°C for 1h, and then raise the temperature to 35°C and proceed with ultrasonic treatment for 1h , to obtain chromium oxide-blend polyamic acid solution; (3) above-mentioned solution is spread film on glass plate and scrape off, remove solvent propylene oxide in common oven, be placed in vacuum oven again, make chromium oxide- The imidization of the polyamic acid is complete, so that the metal-doped blended polyimide conductive film is obtained.

[0014] The elastic modulus ...

Embodiment 2

[0016] Prepare metal-doped blended polyimide conductive film by the following method:

[0017] (1) Add 3000ml of solvent propylene oxide, 50g of 4,4'-dioctyldiphenylamine (ODA) and 20g of heterocyclic amine into the container, add 100g of pyromellitic dianhydride (PMDA) while stirring, and react for 3 hours to form Polyamic acid solution; (2) Add 0.05g of chromium oxide powder to the above solution, and perform ultrasonic treatment with an ultrasonic power of 200W, ultrasonic treatment at a temperature of 25°C for 1h, and then raise the temperature to 35°C and proceed with ultrasonic treatment for 1h , to obtain chromium oxide-polyamic acid solution; (3) spread the above solution on a glass plate and scrape it flat, remove the solvent propylene oxide in an ordinary oven, and then place it in a vacuum oven to make the chromium oxide-polyamide The acid imidization is complete, so that the metal-doped blended polyimide conductive film is obtained.

[0018] The elastic modulus of...

Embodiment 3

[0020] Prepare metal-doped blended polyimide conductive film by the following method:

[0021] (1) Add 2000ml of solvent propylene oxide, 50g of 4,4'-dioctyldiphenylamine (ODA) and 20g of heterocyclic amine into the container, add 100g of pyromellitic dianhydride (PMDA) while stirring, and react for 3 hours to form Polyamic acid solution; (2) Add 0.05g of chromium oxide powder to the above solution, and perform ultrasonic treatment with an ultrasonic power of 200W, ultrasonic treatment at a temperature of 25°C for 1h, and then raise the temperature to 35°C and proceed with ultrasonic treatment for 1h , to obtain chromium oxide-polyamic acid solution; (3) spread the above solution on a glass plate and scrape it flat, remove the solvent propylene oxide in an ordinary oven, and then place it in a vacuum oven to make the chromium oxide-polyamide The acid imidization is complete, so that the metal-doped blended polyimide conductive film is obtained.

[0022] The elastic modulus of...

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
tensile strengthaaaaaaaaaa
elongation at breakaaaaaaaaaa
tensile strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a metal-doped blend polyimide conducting film, which comprises the following steps: (1) adding solvent epoxypropane, heterocyclic amine and ODA into a container, adding PMDA (pyromellitic dianhydride) while stirring, and reacting for 3 hours to generate a polyamic acid solution; (2) adding chrome oxide powder into the solution, and carrying out ultrasonic treatment for 2 hours while keeping the temperature at 25-35 DEG C, thereby obtaining the chrome oxide-polyamic acid solution; and (3) spreading the solution on a glass plate to form a film, flattening by scraping, removing the solvent epoxypropane in a common drying oven, and putting in a vacuum drying oven to completely perform chrome oxide-polyamic acid imidization, thereby obtaining the metal-doped blend polyimide conducting film. The method can lower the surface conductivity of the polyimide, prevent static electricity and widen the application range of the polyimide.

Description

technical field [0001] The invention relates to a method for preparing a metal-doped blended polyimide conductive film, which belongs to the field of material processing. technical background [0002] In the prior art, polyimide high-efficiency heat-insulating and sound-absorbing lightweight materials are resistant to high and low temperatures, low in density, non-toxic, smokeless, convenient and safe in construction, and good in sound absorption performance. They are ideal for ships, aerospace, high-speed trains and other fields. An excellent choice for heat insulating and sound absorbing materials. However, the surface resistivity of polyimide film is at the level of 1016Ω / square, and its conductivity is not good. It can be used as an insulating material by itself. However, with the expansion of the space field, the application of polyimide materials in aerospace engineering It is becoming more and more extensive, and the requirements for its various performances are al...

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): C08J5/18C08L79/08C08K3/22C08G73/10
Inventor 苏建丽
Owner QINGDAO WINCHANCE TECH