Investigation of Nucleating Agents on Low Ethyl ene Content Polypropylene Copolymer Crystallization

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (10): 1464.

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Investigation of Nucleating Agents on Low Ethyl ene Content Polypropylene Copolymer Crystallization

ZHANG Rui-Yun, LUO Xiao-Lie, ZHENG Hai-Feng, MA De-Zhu

Department of Materials Science and Engineering, University of Science and Technology, Hefei, 230026

Received:1992-12-29 Revised:1993-04-01 Online:1993-10-24 Published:1993-10-24

Abstract

Abstract: With the Differential Scanning Calormeter (DSC) and Polarized Light Microscope (PLM), the effect of a series of nucleating agents on the low ethylene content polypropylene copolymers and polypropylene (PP)/polyethylene (PE) blends have been studied.It is shown that the nucleating agent which is effective to the crystallization of PPhomopolymer is also useful to the crystallization of PPcopolymers.In general, the efficiency of nucleating agent in PPcopolymer is higher than PPhomopolymer, which can be well explained by the difference of regularity of molecular chain between PPcopolymer and PPhomopolymer.In PP/PEblends, the nucleating agents affect the nucleation of both PPand PEcrystallization.

Key words: Nucleating agent, PP copolymer, PP/PE blend, Crystallization

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ZHANG Rui-Yun, LUO Xiao-Lie, ZHENG Hai-Feng, MA De-Zhu. Investigation of Nucleating Agents on Low Ethyl ene Content Polypropylene Copolymer Crystallization[J]. Chem. J. Chinese Universities, 1993, 14(10): 1464.

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Investigation of Nucleating Agents on Low Ethyl ene Content Polypropylene Copolymer Crystallization

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