Nonisothermal crystallization kinetics of AB2 hyperbranched polymer‐filled polypropylene

• DOI: 10.1002/pen.23514
• Publication Date: 2013-02-13T09:47:53Z
• Authors: Guangtian Liu; Jing Lei; Fengyan Wang
• Keywords: Polypropylene; Avrami equation

In this article, nonisothermal crystallization kinetics of polypropylene (PP) and AB 2 hyperbranched polymer (HBP)‐filled PP have been investigated by differential scanning calorimetry. The Avrami analysis modified Mandelkern a method combined with Ozawa equations were employed to describe successfully the samples. conclusion showed that HBP can prompt effectively. Furthermore, in blends different contents, value t 1/2 became smaller increasing content; however, rate blend decreased slightly when content is 5%. An increase exponent addition influenced mechanism nucleation growth crystallites. possible explanation could be attributed fractal structure HBP. polarized micrographs acts as heterogeneous agent, efficiency has increased remarkably HBP/PP blends. POLYM. ENG. SCI., 53:2535–2540, 2013. © 2013 Society Plastics Engineers