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首页> 外文期刊>Journal of Applied Polymer Science >A novel highly efficient β-nucleating agent for isotactic polypropylene
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A novel highly efficient β-nucleating agent for isotactic polypropylene

机译：新型高效等规聚丙烯β成核剂

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摘要

A novel highly efficient β-nucleating agent for isotactic polypropylene (iPP), hexahydrophthalic barium (HHPA-Ba), was found and its effects on the mechanical properties, the β-phase content, and crystallization behavior of iPP were investigated, respectively. The results show that the β-phase content of nucleated iPP (k_β value) can reach 80.2% with 0.4 wt % HHPA-Ba. The impact strength and crystallization peak temperature of nucleated iPP are greatly increased. Compared with pure iPP, the impact strength of nucleated iPP can increase 2.4 times. Meanwhile, the spherulite size of nucleated iPP is dramatically decreased than that of pure iPP. The Caze method was used to investigate the nonisothermal crystallization kinetics of nucleated iPP and the crystallization active energy was achieved by Kissinger method.
机译：发现了一种新型的高效等规聚丙烯（iPP）β成核剂六氢邻苯二甲酸钡（HHPA-Ba），并研究了其对iPP的力学性能，β相含量和结晶行为的影响。结果表明，在0.4wt％的HHPA-Ba条件下，成核的iPP的β相含量（k_β值）可以达到80.2％。形核iPP的冲击强度和结晶峰温度大大提高。与纯iPP相比，成核iPP的冲击强度可提高2.4倍。同时，有核iPP的球晶尺寸比纯iPP的球晶尺寸显着减小。用Caze法研究了成核的iPP的非等温结晶动力学，并通过Kissinger法获得了结晶有功能量。

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