Approaches of interfacial modification for flame retardant polymeric materials

Two different flame-retardant materials are discussed in this study, one of which employed an inorganic flame retardant and the other a brominated fla me retardant. Matrix grafting modification was employed to modify the forme r material and Pukanszky's formula was used to analyze the effect of grafti ng. On the other hand, four different coupling agents were employed for the latter material. The effect of these coupling agents on the materials is f ound to closely relate to the chemical structure and molecular weight of th e coupling agents. The interfacial modifying mechanisms of matrix grafting and coupling agent are compared to each other in terms of the molecular str ucture of the materials. (C) 2001 Elsevier Science Ltd. All rights reserved .