Deformation Process and Mechanism of HDPE/LDPE Blends

Abstract

Abstract: Blends of HDPEin more LDPE, with appropriate heat treatment,produce a dispersion of separate entities of HDPE in a matrix of LDPE.The system offered an especially favourable means of studying the deformation of melt-crystallized lamellae. It has been found that sheaf-like spherulites are transformed under tensile deformation into hourglass shapes i.e. a double cone aligned along the drawing direction with origin in the center of the object. This is a consequence of different modes of deformation according to the relation of an individual lamella to the tensile axis. The work shows that the lamellae have not undergone melting and recrystallization in the deformation process at room temperature.

Key words: HDPE, LDPE, Blend, Morphology, Deformation process

CLC Number:

O631.1

TrendMD:

ZHAO Yong, YANG De-Cai, A. S. Vaughan. Deformation Process and Mechanism of HDPE/LDPE Blends[J]. Chem. J. Chinese Universities, 1998, 19(2): 328.

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Deformation Process and Mechanism of HDPE/LDPE Blends

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