Application of twelve variables gradient method to the study of poly (beta-hydroxybutyrate) crystallization

Hongqi Li; Shihu Ma; Dongmei Xing; Jingwei Tong; Linan Li; Shibin Wang; Guoxiang Cheng

doi:10.1117/12.509886

29 April 2003 Application of twelve variables gradient method to the study of poly (β-hydroxybutyrate) crystallization

Hongqi Li, Shihu Ma, Dongmei Xing, Jingwei Tong, Linan Li, Shibin Wang, Guoxiang Cheng

Proceedings Volume 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002; (2003) https://doi.org/10.1117/12.509886
Event: Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, 2002, Beijing, China

Abstract

Poly(3-hydroxybutyrate) exhibits remarkable embrittlement upon storage at room temperature, and this problem limits its widely use in technical purpose. In this paper, morphology and micro-structure of PHB spherulite are investigated by using the twelve variables gradient method and polarization microscope. The results indicate that the PHB spherulites could continuously crystallize, namely: secondary crystallization, the morphology and micro-structure of PHB spherulite are changed, the embrittlement at room temperature was resulted from PHB secondary crystallization. Competition phenomenon in the process of PHB secondary crystallization was found.

Citation Download Citation

Hongqi Li, Shihu Ma, Dongmei Xing, Jingwei Tong, Linan Li, Shibin Wang, and Guoxiang Cheng "Application of twelve variables gradient method to the study of poly (β-hydroxybutyrate) crystallization", Proc. SPIE 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, (29 April 2003); https://doi.org/10.1117/12.509886

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