Multisorb’s Chau speaks on PLA crystallization at ANTECS 2011
- Filed in:
- Resins,
- Bioplastics
At the Society of Plastics Engineers (SPE) ANTECS 2011 technical conference in early May, Multisorb Technologies senior scientist CC Chau gave the presentation, “Non-Isothermal Crystallization of Poly(lactic acid): Effect of Nucleation and Cooling Rate,” during the Bioplastics and Polymer Analysis session.
According to Chau, enhanced crystallization of PLA may provide mechanical enhancement, improved heat stability, and gas barrier-properties that are desirable for use in packaging and consumer goods. Chau presented methods for enhancing the crystallization of PLA and various PLA blends.
Chau also discussed the effect of a nucleation agent and the cooling rate on the crystallization of PLA, as well as blend compositions. Data, analyzed using a modified Kissinger method, were presented that demonstrated that the nucleation effect of talc decreased rapidly as the cooling rate increased. Additionally, the nucleation effect was enhanced as the talc content was increased. Chau also showed a correlation between the modified Kissinger plot and Avrami analysis.
CC Chau has been with Multisorb since 2008. He has a Ph.D in Materials Science from the University of Rochester. Prior to joining Multisorb, Chau worked in the plastics and packaging industries.
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