Nonisothermal Crystallization Behavior of ethylene-tetrafluoroethylene Copolymer

doi:10.19491/j.issn.1001-9278.2009.12.010

China Plastics ›› 2009, Vol. 23 ›› Issue (12): 44-47 .DOI: 10.19491/j.issn.1001-9278.2009.12.010

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Nonisothermal Crystallization Behavior of ethylene-tetrafluoroethylene Copolymer

BAO Yong-Zhong

Received:2009-09-17 Revised:1900-01-01 Online:2009-12-26 Published:2009-12-26

Abstract

Abstract: Nonisothermal crystallization behavior of ethylene-tetrafluoroethylene copolymer (ETFE) was studied by DSC and polarizing microscope. DSC data was dealed with Mo and Kissinger method. The results indicated that the maximal crystallization temperature of ETFE was decreased and the range of crystallization temperature became broader as the cooling rate incresed.The crystallization process could be divided into three phases as the nucleation period, primary crystallization phase in which nucleus grew into sphere crystals, and secondary crystallization phase in which sphere crystals contacted mutually and grew continually.The activation energy of nonisothermal crystallization of ETFE was increased with the increase of C2F4 content in ETFE.

Key words: ethylene-tetrafluoroethylene copolymer, nonisothermal crystallization, kinetics, crystalline morphology

BAO Yong-Zhong . Nonisothermal Crystallization Behavior of ethylene-tetrafluoroethylene Copolymer[J]. China Plastics, 2009, 23(12): 44-47 .

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Nonisothermal Crystallization Behavior of ethylene-tetrafluoroethylene Copolymer

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