马来酸酐、苯乙烯双单体固相接枝聚丙烯及其应用

STUDIES AND APPLICATIONS OF THE SOLID- PHASE GRAFTING OF MAH AND St ONTO PP

用马来酸酐 ( MAH)、苯乙烯 ( St)双单体固相接枝聚丙烯 ( PP)制备相容剂 PSM,并研究了 PSM在PP/ Talc/ TPU体系中的应用。

The compatibilizator was prepared throug h solid-phase grafting of MAH and St onto PP. The effects of concentration of ini tiator BPO and monomer St on grafting rate were discussed. The graft copolymer w as characterized by IR spectrum, which showed that MAH and St were grafted onto PP. The applilation of PSM to PP／Tale／TPU composites was also studied. The res ults show that PSM could obviously improve the bonding of phases and the mechani cal properties of the composites. PSM content has its maximum, when PSM content is 5%, the mechanical properties of the composites are the best.