Filled compounds of the β‐modification of polypropylene

摘要: Possibilities and thermal preconditions of the preparation filled β-PP composites were studied. Two types mineral fillers (chalk talc) found considerably different. Chalk, as a weak α-nucleating agent, exerts minimum influence on rate crystallization, polymorphic composition, size spherulites formed. Consequently, chalk-filled composite products can be manufactured in wide range composition. On contrary, talc is strong selective thus it has great course crystallization Even at low concentration (C ≥ 1%), suppresses formation β-modification. In its presence, only high proportion β-modification prepared. Mechanical characteristics determined.