THE FORMATION OF INTERPENETRATING POLYMER BLENDS

摘要

Formation of the thermoplastic blends of co-continuous morphology has been discussed, the dynamic character of this process being stressed. Interpenetrating polymer blends represent the intermediate stage of a multicomponent polymer system during dispersive mixing. The time for reaching such a state of heterogeneity and its stability depend on the viscoelastic characteristics of the component polymers, their ratio in a blend, interfacial tension and mixing parameters. The role of particular factors influencing the formation of interpenetrating polymer blends has been presented for the LDPE/PS system. Because of the dynamic character of the evolution of polymer blend morphology upon mixing, the processing history specifications should accompany every morphology presentation. [References: 49]