Cell nucleation in dominating formation of bimodal cell structure in polypropylene/polystyrene blend foams prepared via continuous extrusion with supercritical CO<sub>2</sub>

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Cell nucleation in dominating formation of bimodal cell structure in polypropylene/polystyrene blend foams prepared via continuous extrusion with supercritical CO₂

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作者：Kun Wang ; Yongyan Pang ; ^{yongyan.pang@nimte.ac.cn" class="auth_mail" title="E-mail the corresponding author} ; Fei Wu ; Wentao Zhai ; Wenge Zheng ; ^{wgzheng@nimte.ac.cn" class="auth_mail" title="E-mail the corresponding author}
关键词：Bimodal cell structure ; Supercritical CO2 ; Continuous extrusion foaming ; PP/PS blend ; Cell nucleation
刊名：The Journal of Supercritical Fluids
出版年：2016
出版时间：April 2016
年：2016
卷：110
期：Complete
页码：65-74
全文大小：5555 K

文摘

•: PP/PS blend foams with a bimodal cell structure were prepared by extrusion foaming.
•: Large and small cells were mainly formed in PS phase and PP phase, respectively.
•: A possible mechanism was proposed for the formation of bimodal cell structure.
•: A prominent difference in cell nucleation was required to form bimodal cell structure.
•: Cell structure could be tuned via altering cell nucleation in PP phase and PS phase.

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