Appropriate ultrasonic irradiation has beneficial effectson reduction of d-spacing and lattice parameter of PP added with Talc, which has poor dispersion in PP.

• 适宜的超声作用对改善与PP基体分散性及相容性差的成核剂效果明显，使PP/Talc体系中PP的晶面间距及晶胞尺寸大幅度减小。