✦ LIBER ✦

Crystallization characteristics of polypropylene and low ethylene content polypropylene copolymer with and without nucleating agents

✍ Scribed by Ruiyun Zhang; Haifeng Zheng; Xiaolie Lou; Dezhu Ma

Publisher: John Wiley and Sons
Year: 1994
Tongue: English
Weight: 653 KB
Volume: 51
Category: Article
ISSN: 0021-8995
DOI: 10.1002/app.1994.070510106

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✦ Synopsis

In this paper, the crystallization characteristics of polypropylene and low ethylene content polypropylene copolymers with and without nucleating agents were studied by differential scanning calorimetry (DSC) and polarized light microscopy ( PLM) . In order to determine the nonisothermal crystallization rate of these materials, a new estimation method was introduced. Comparing with the crystallization rate coefficient (CRC) , which was proposed by Khanna, we found the new approach is more reasonable. From the analysis of results of DSC and PLM, it can be concIuded that nucleating agent is more efficient than it is in PP homopolymer.

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