4′-biphenyltetracarboxylic dianhydride_Kain Industrial Additive

Background and overview[1] Biphenyl polyimide, as a high-performance polymer, has heat resistance, solvent resistance, radiation resistance, and good mechanical and dielectric properties. It is widely used in mechanical electronics, aerospace, large motors, turbine bearings, etc. Heat-resistant filter materials and other fields have broad application prospects. Compared with the polyimide in which 3,3′,4,4′-biphenyltetracarboxylic dianhydride (4,4′-BPDA) is…