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Morphology and Tensile Strength Prediction of in situ Microfibrillar Poly(ethylene terephthalate)/Polyethylene Blends Fabricated via Slit‐Die Extrusion‐Hot Stretching‐Quenching
Author(s) -
Li ZhongMing,
Yang Wei,
Xie BangHu,
Shen KaiZhi,
Huang Rui,
Yang MingBo
Publication year - 2004
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.200300260
Subject(s) - materials science , extrusion , composite material , polyethylene terephthalate , ultimate tensile strength , extrusion moulding , morphology (biology) , polyethylene , molding (decorative) , quenching (fluorescence) , die (integrated circuit) , micrograph , izod impact strength test , scanning electron microscope , nanotechnology , optics , physics , genetics , fluorescence , biology
Summary: In situ microfibrillar poly(ethylene terephthalate) (PET)/polyethylene blends (MRB) were successfully fabricated by slit‐die extrusion‐hot stretching‐quenching. The morphology of this new material is mainly influenced by the composition and the hot stretching. Appropriate PET concentrations and a comparatively high hot stretching ratio could facilitate the fibrillation of PET domains during processing. The expression employed for prediction of the tensile strength for the microfibrillar blend was proved to be desirable. The prediction was, generally, in agreement with the experimental results, although the values of some parameters were approximated.SEM micrograph of the cryofractured surface of the in situ microfibrillar PET/PE blend after injection molding.