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	Foaming behavior of polypropylene/polystyrene blends enhanced by improved interfacial compatibility
	Zhai, Wentao1,2; Wang, Hongying1,2; Yu, Jian1; Dong, Jinyong1; He, Jiasong1
刊名	Journal of polymer science part b-polymer physics
	2008-08-15
卷号	46期号:16页码:1641-1651
关键词	Blends Microcellular foam Poly(propylene) Polystyrene Supercritical co2
ISSN号	0887-6266
DOI	10.1002/polb.21498
通讯作者	Yu, jian(yuj@iccas.ac.cn)
英文摘要	A series of polypropylene (pp)/polystyrene (ps) blends were prepared by solvent blending with ps-grafted pp copolymers (pp-g-ps) having different ps graft chain length as compatibilizers. the interfacial compatibility was significantly improved with increasing ps graft chain length until the interface was saturated at ps graft chain length being 3.29 x 10(3) g/mol. the blends were foamed by using pressure-quenching process and supercritical co2 as the blowing agent. the cell preferentially formed at compatibilized interface because of low energy barrier for nucleation. combining with the increased interfacial area, the compatibilized interface lead to the foams with increased cell density compared to the uncompatibilized one. the increase in interfacial compatibility also decreased the escape of gas, held more gas for cell growth, and facilitated the increase in expansion ratio of pp/ps blend foams. (c) 2008 wiley periodicals, inc.
WOS关键词	SUPERCRITICAL CARBON-DIOXIDE ; MICROCELLULAR THERMOPLASTIC FOAM ; GLASS-TRANSITION PARTICLES ; HETEROGENEOUS NUCLEATION ; SEMICRYSTALLINE POLYMERS ; PE/PS BLENDS ; MORPHOLOGY ; COPOLYMERS ; GRAFT ; POLY(ETHYLENE-TEREPHTHALATE)
WOS研究方向	Polymer Science
WOS类目	Polymer Science
语种	英语
出版者	JOHN WILEY & SONS INC
WOS记录号	WOS:000258602500001
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2387084
专题	中国科学院大学
通讯作者	Yu, Jian
作者单位	1.Chinese Acad Sci, Inst Chem, BNLMS,Joint Lab Polymer Sci & Mat, Key Lab Engn Plast, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Zhai, Wentao,Wang, Hongying,Yu, Jian,et al. Foaming behavior of polypropylene/polystyrene blends enhanced by improved interfacial compatibility[J]. Journal of polymer science part b-polymer physics,2008,46(16):1641-1651.
APA	Zhai, Wentao,Wang, Hongying,Yu, Jian,Dong, Jinyong,&He, Jiasong.(2008).Foaming behavior of polypropylene/polystyrene blends enhanced by improved interfacial compatibility.Journal of polymer science part b-polymer physics,46(16),1641-1651.
MLA	Zhai, Wentao,et al."Foaming behavior of polypropylene/polystyrene blends enhanced by improved interfacial compatibility".Journal of polymer science part b-polymer physics 46.16(2008):1641-1651.

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