Preparation method of electric conduction polyimide film
The technology of polyimide film and polyamic acid is applied in the field of preparation of conductive polyimide film, which can solve the problems of circuit board damage, high insulation coefficient of polyimide film, accumulation of static electricity, etc., so as to prevent electrostatic discharge. , excellent electrical conductivity, the effect of enhancing electrical conductivity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0020] Example 1:
[0021] (1) Dissolve 20.023g (0.1mol) of 4,4'-diaminodiphenyl ether in 236g of N,N-dimethylformamide (DMF) in a reactor at 15°C, and then divide them three times 20.721g (0.095mol), 0.872g (0.004mol), 0.044g (0.0002mol) of pyromellitic dianhydride were added to the stirring reaction, and the reaction time between two adjacent additions was 15min. After adding the second pyromellitic dianhydride, the stirring reaction is continued for 60 minutes to obtain a polyamic acid solution with a solid content of 15% and a viscosity of 1500 poise.
[0022] (2) Add 0.406 g of superconducting carbon black and 0.021 g of carbon nanotubes to the polyamic acid solution, and disperse them uniformly using a high-shear disperser to obtain a black mixed solution.
[0023] (3) After the mixed solution is subjected to vacuum degassing treatment, it is coated on a stainless steel plate and dried in a blast drying oven at 140°C for 30 minutes. The obtained gel film was peeled off and fi...
Example Embodiment
[0024] Example 2:
[0025] (1) Dissolve 19.022g (0.095mol) of 4,4'-diaminodiphenyl ether and 0.541g (0.005mol) of p-phenylenediamine in 195g of N,N-diamine in a reactor at 20°C. Methylacetamide (DMAC), and then divide 17.231g (0.079mol) of pyromellitic dianhydride, 5.855g (0.0199mol) of 3,3',4,4'-biphenyltetracarboxylic acid two Anhydride, 0.131g (0.0006mol) of pyromellitic dianhydride were added to the reaction, and the reaction time between two adjacent additions was 20min. After the third pyromellitic dianhydride was added, continue The reaction was stirred for 60 minutes to obtain a polyamic acid solution with a solid content of 18% and a viscosity of 2600 poise.
[0026] (2) Add 1.925 g of superconducting carbon black and 0.214 g of carbon nanotubes to the polyamic acid solution, and disperse them uniformly using a high-shear disperser to obtain a black mixed solution.
[0027] (3) After the mixed solution is vacuum degassed, it is coated on a stainless steel plate and dried i...
Example Embodiment
[0028] Example 3:
[0029] (1) Dissolve 18.021g (0.09mol) of 4,4'-diaminodiphenyl ether and 1.081g (0.01mol) of p-phenylenediamine in 179g of N,N-diamine in a reactor at 25°C. In methylacetamide (DMAC), 10.791g (0.0495mol) of pyromellitic dianhydride and 14.682g (0.0499mol) of 3,3',4,4'-biphenyltetracarboxylic acid were divided into three Anhydride, 0.073g (0.0004mol) of pyromellitic dianhydride were added to the reaction, and the reaction time between two adjacent additions was 30min. After the third pyromellitic dianhydride was added, the stirring reaction was continued. In 60 minutes, a polyamic acid solution with a solid content of 20% was obtained, and the viscosity was 3500 poise.
[0030] (2) Add 3.572 g of superconducting carbon black and 0.893 g of carbon nanotubes to the polyamic acid solution, and disperse them uniformly using a high-shear disperser to obtain a black mixed solution.
[0031] (3) After the mixed solution is vacuum degassed, it is coated on a stainless ste...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap