Mult-920成核剂对iPB晶型转变速率的影响  

Effect of Mult-920 Nucleating Agent on Crystal Transformation Rate of Isotactic Poly(1-butene)

作　　者：许春生[1] 王召栋[1] 姚薇[1] 

机构地区：[1]青岛科技大学橡塑材料与工程教育部重点实验室,山东青岛266042

出　　处：《现代塑料加工应用》2010年第5期29-32,共4页Modern Plastics Processing and Applications

摘　　要：采用红外光谱法研究了室温条件下Mult-920成核剂对全同聚1-丁烯(iPB)的晶型转变速率的影响。结果表明,成核剂对iPB具有很好的成核作用;成核剂对晶型转变速率的影响较大,加有成核剂的iPB的晶型转变完成一半的时间只需要1.6 h,明显低于iPB的28.5 h;在力学性能方面,iPB需要72.0 h左右达到性能稳定,加有成核剂的iPB只需要24.0 h便可以达到性能稳定,从而说明成核剂能很好地加快iPB的晶型转变速率。The effect of Mult-920 nucleating agent on the crystal transformation rate of isotactic poly（1-butene）（iPB） at room temperature was investigated by Fourier transform infrared spec troscopy（FT-IR）. The results show that the nucleating agent has a good nucleation for iPB. The nucleating agent has great influence on the phase transformation rate, the half phase transformation time（t1/ 2 ） of iPB with nucleating agent is 6.4 h which is significantly lower than 28.5 h of iPB. In the mechanical properties, iPB needs about 72.0 h to achieve stable performance, iPB with the nucleating agent only needs 24.0 h to achieve stable performance. So the nucleating agent can speed up the crystal transformation rate of iPB.

关 键 词：全同聚1-丁烯 结晶 晶型转变速率 成核剂 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]