Preparation and Performance Research of Polyimide Modified Nylon Resin
High performance trend of plastics has become a hot spot of current research. Select bisphenol A dianhydride and bisphenol A diamine with excellent water resistance as the reactant monomers to obtain anhydride-terminated polyimide with very high molecular weight by two-step polymerization, graft the active radicals of acyl caprolactam using the activity of anhydride and obtain PI modified nylon resin by polymerization. It is proved that the reaction in each above step is successful through infrared analysis. Through microscopic analysis, the molecules of polyimide does not enter crystallization phase of nylon resin, but forms compact lamellar crystals existing in nylon matrix.
Zhong Cao, Yinghe He, Lixian Sun and Xueqiang Cao
H. K. Zhao et al., "Preparation and Performance Research of Polyimide Modified Nylon Resin", Advanced Materials Research, Vols. 236-238, pp. 548-551, 2011