Study on Modification of Mechanical Properties of Polypropylene by Calcined-kaolin and Mica
Calcined-kaolinite/mica/polypropylene composite was prepared by melt blending method.The influence of content and proportioning of calcined kaolin and mica on the mechanical properties of polypropylene were studied.The results show that the addition of calcined-kaolinite and mica can enhance the impact strength of PP.Compared with the pure PP,the impact strength of the composites was improved 35.6％,when the weight percentage content of the calcined-kaolinite was 5％and mica was 5％.Tensile strength of PP was increased when appropriate amount calcined kaolin was added,but the addition of mica make the tensile strength of the composite decreased.Calcined kaolin and mica play a func-tion in heterogeneous nucleation of PP,and increased the degree of crystallization.
万方数据
维普
