研究了酰胺化合物--N,N'-二苯基丁二酰胺(DPS)的用量和结晶温度对聚丙烯中B晶型含量和结晶度的影响.发现DPS是聚丙烯的高效β成核剂,随着DPS含量的增加,聚丙烯中β晶型含量不断增多.等温结晶试验表明,添加0.2%DPS的聚丙烯样品在结晶温度为120℃时生成最大含量p晶型,此时β晶型的相对含量达到89.06%.
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