Firstly, the high-temperature PI membrane is condensed into a film by phthalic acid dianhydride and diaminodiphenyl ether in a strong polar solvent, and then imimidated. It is a kind of film insulation material with good performance; Also known as polyimide film, high temperature PI film has the following advantages!
(1) Excellent heat resistance
(2) Excellent mechanical properties
(3) It has good chemical stability, moisture resistance and heat resistance
(4) Good radiation resistance
(5) Good dielectric properties
Scope of application:
1. High temperature PI film can be used as flexible printed circuit board material (FCCL) and various high temperature resistant motor electrical insulation materials, as well as PI coated silicone/acrylic adhesive, forming single-sided or double-sided high temperature resistant tape for electronic packaging protection, high temperature paint protection, spraying masking protection, etc.
2. Lithium battery black self-adhesive edging PI material is mainly used in the hemming of mobile phone cells, the wrapping of mobile phone cells and others. This material needs to be stored in a dry, clean warehouse, suitable storage temperature: 10 °C-30 °C, storage period of one year, avoid storing with organic solutions and liquids.
3. PI lithium battery heat insulation sheet is made of silica aerogel surrounded by PI film under glue-free hot pressing sealing, mainly used in lithium battery packaging heat insulation buffer and other high temperature environment heat insulation buffer