FRACTIONATED CRYSTALLIZATION OF HDPE IN PS/POE/HDPE/SBS BLENDS

Ming-ming Ding; Xiao-ting Fu; Jing Cao; Qin Zhang; Chang-yue Yang; Qiang Fu

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FRACTIONATED CRYSTALLIZATION OF HDPE IN PS/POE/HDPE/SBS BLENDS

Papers | Updated：2021-06-21

- FRACTIONATED CRYSTALLIZATION OF HDPE IN PS/POE/HDPE/SBS BLENDS
- Vol. 26, Issue 6, Pages: 733-740(2008)
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- Published：20 November 2008
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Ming-ming Ding, Xiao-ting Fu, Jing Cao, et al. FRACTIONATED CRYSTALLIZATION OF HDPE IN PS/POE/HDPE/SBS BLENDS[J]. 2008, 26(6): 733-740.
DOI：

Ming-ming Ding, Xiao-ting Fu, Jing Cao, et al. FRACTIONATED CRYSTALLIZATION OF HDPE IN PS/POE/HDPE/SBS BLENDS[J]. 2008, 26(6): 733-740. DOI：

摘要

The fractionated crystallization behavior of the minor dispersed HDPE phase in PS/POE/HDPE/SBS quaternary blends was investigated by differential scanning calorimetry (DSC). Interestingly

we found that the fractionated crystallization behavior of HDPE was molecular weight dependent. At a fixed composition

HDPE with lower molecular weight showed more obvious fractionated crystallization behavior than HDPE with higher molecular weight. This was ascribed to a finer dispersion of HDPE with lower molecular weight

as evidenced by SEM observations. The fractionated crystallization behavior of HDPE in the blends became less obvious with increasing of its content

due to a change of phase morphology from droplet to co-continuous structure. Correspondingly

a change of tensile toughness of the blends from brittle to ductile mode was observed.

Abstract

The fractionated crystallization behavior of the minor dispersed HDPE phase in PS/POE/HDPE/SBS quaternary blends was investigated by differential scanning calorimetry (DSC). Interestingly

we found that the fractionated crystallization behavior of HDPE was molecular weight dependent. At a fixed composition

as evidenced by SEM observations. The fractionated crystallization behavior of HDPE in the blends became less obvious with increasing of its content

due to a change of phase morphology from droplet to co-continuous structure. Correspondingly

a change of tensile toughness of the blends from brittle to ductile mode was observed.

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