Transcrystalline morphology of an in situ microfibrillar poly(ethylene terephthalate)/poly(propylene) blend fabricated through a slit extrusion hot stretching-quenching process

被引：113

作者：

Li, ZM ^{[1
]}

Li, LB

Shen, KZ

Yang, W

Huang, R

Yang, MB

机构：

[1] Sichuan Univ, State Key Lab Polymer Mat Engn, Coll Polymer Sci & Engn, Chengdu 610065, Peoples R China

[2] FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2004年 / 25卷 / 04期

关键词：

extrusion; microfibrillar; polyesters; poly(propylene) (PP); transcrystalline;

D O I：

10.1002/marc.200300086

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Isotactic poly(propylene) (iPP) transcrystallites are obtained in in situ microfibrillar polyethylene terephthalate (PET)/iPP blends during a slit extrusion-hot stretching-quenching process. Based on morphological information from X-ray scattering and microscopy, three nucleation origins are proposed in microfibrillar reinforced blends under an elongational flow field: (a) the classical row nuclei model; (b) fiber nuclei; (c) nuclei induced by fiber assistant alignment. The last model provides a natural explanation for the case that transcrystallites only occur in some microfiber reinforced blends under flow rather than without the external field.

引用

页码：553 / 558

页数：6

共 21 条

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Arroyo N, 1997, POLYMER, V38, P5587, DOI 10.1016/S0032-3861(97)00102-X

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