Foaming of Polystyrene with Supercritical Carbon Dioxide

Wei Hua Ma; Jie Ding; Qin Zhong

doi:10.4028/www.scientific.net/AMR.669.366

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 669Foaming of Polystyrene with Supercritical Carbon...

Foaming of Polystyrene with Supercritical Carbon Dioxide

Abstract:

General Purpose Polystyrene (GPPS) and High Impact Polystyrene (HIPS) were foamed with supercritical carbon dioxide in the batch foaming process. Foaming behaviors of GPPS and HIPS were investigated. The cell diameters and cell densities of GPPS and HIPS vary strangely with foaming conditions and can be explained by the classical nucleation. The competition between cell growth and cell nucleation is used to explain these strange foaming behaviors. The glass transition temperature (Tg) almost remains constant with the foaming temperature rising.

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Periodical:

Advanced Materials Research (Volume 669)

Pages:

366-370

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.669.366

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Online since:

March 2013

Authors:

Wei Hua Ma, Jie Ding, Qin Zhong

Keywords:

Foaming, Glass Transition Temperature, Polystyrene, Supercritical Carbon Dioxide

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