α和β成核剂对高流动性聚丙烯性能的影响  

EFFECTS OF α AND β NUCLEATING AGENTS ON PROPERTIES OF HIGH-FLUIDITY POLYPROPYLENE

作　　者：胡庆云[1] 笪文忠[1] 梅利[1] 

机构地区：[1]中国石化扬子石油化工有限公司南京研究院,南京210048

出　　处：《工程塑料应用》2010年第7期12-14,共3页Engineering Plastics Application

摘　　要：分析了α和β成核剂对高流动性聚丙烯(PP)的力学、结晶和耐热性能的影响。结果表明,α成核剂使高流动性PP的刚性增加,当其用量为0.3份时,PP的拉伸强度、拉伸弹性模量、弯曲强度、结晶和耐热性能达到最佳,与国外同类材料B#的性能相当;β成核剂能有效地改善高流动性PP的韧性,当其用量为0.3份时,PP的冲击强度达到最大;在相同用量下,α成核剂对高流动性PP结晶和耐热性能的改善效果要优于β成核剂。Effects of α and β nucleating agents on mechanical,crystalline and heat-resistant properties of high-fluidity polypropylene were analyzed.The results showed that α nucleating agent increased rigidity of high-fluidity polypropylene,when the content of α nucleating agent was 0.3 phr,the tensile strength,tensile elastic modulus,bending strength,crystallization and heat-resistant properties reached the best and were close to the properties of foreign same material B#.β nucleating agent effectively improved the toughness of high-fluidity polypropylene,when the content of β nucleating agent was 0.3 phr,the impact strength reached the largest.Under the condition of same content,the improvement of crystallization and heat-resistant properties by α nucleating agent was better than β nucleating agent.

关 键 词：成核剂 聚丙烯 高流动性 性能 结晶 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]