Characterization of Bisphenol a Poly(Carbonate) after Multiple Processing Cycles

Abstract:

Bisphenol A poly(carbonate) (PC) pellets used for production of 5 gallon drink water bottles were reprocessed in a twin-screw extruder for three processing cycles which simulated to those of PC bottle processing conditions. The reprocessed PC pellets were characterized by its mechanical, rheological, thermal, and optical properties. It was found that the mechanical properties of the reprocessed PC samples are slightly decreased after reprocessed. Whereas no further change was observed for the rheological and thermal properties and molecule weight of the PC samples after the second reprocessing cycles. Moreover, the melt flow index, color, and optical properties changed obviously after two reprocessing cycles.

• Periodical: Advanced Materials Research (Volumes 146-147)
• Pages: 713-719
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.146-147.713
• Online since: October 2010
• Authors: Xia Gao, Qin Yong Mi, Wei Zhang, Zhao Hui Wang, Tong Na Mu, Jun Zhang, Rui Gang Liu, Jia Song He, Qing Jun Liu, Jing Hua Zhang
• Keywords: Bisphenol A Poly(Carbonate), Processing, Thermal Degradation

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