Homogeneous anhydride PI resin can be used to manufacture films, fibers, coatings, enameled wires and other products.
Ether anhydride type PI resin is resistant to water vapor and is used in the manufacture of tough films and coatings. It is the matrix resin of composite materials.
Ketone anhydride type PI resin is used in various coatings, high temperature resistant adhesives, etc.
Bisphenol A dianhydride type PI resin is used to manufacture films, coatings and other products. It is a good toughening modifier.
The desolventization section requires segmented treatment, which can slowly remove the solvent and reduce the degradation of polyamic acid.
120
20-60
140
20
160
20-60
180
20-60
200
20
The cyclization section can increase the mechanical properties of the product.
250
20
300
20
300-150
-
natural cooling
(1) The above is the processing reference process when processing PI film or potting materials;
(2) Water or oil on the contact surface needs to be cleaned before processing;
(3) The above is the processing method in a blast oven. If a vacuum oven is used, the effect will be better;
(4) The polyamic acid solution needs to be stored in a dark, dry, and -18°C condition. The shelf life is 90 days.
