Effects of Surface Treatments on the Performances of Al_2O_3 Nano-Particle/Polyimide adhesive

摘要

The nano- Al_2O_3/polyimide composite adhesive was prepared by high-energy chemical and mechanical handing in this paper. The thermally curing process was preliminary determined, furthermore, the effects of n - Al_2O_3 on the performance of polyimide adhesive were investigated using SEM. The results were showed that n-Al_2O_3 particles were segregated from adhesive to the interface, especially bulk structural defect, which may be the reason why the performance of n-Al_2O_3/ PI adhesive becomes better. However, the detailed mechanism is still to be discussed.