Impact specific essential work of fracture of compatibilized polyamide-6 (PA6)/poly(phenylene ether) (PPE) blends

Kuo Chan Chiou; Feng Chih Chang; Yiu Wing Mai

doi:10.1002/pen.10802

Impact specific essential work of fracture of compatibilized polyamide-6 (PA6)/poly(phenylene ether) (PPE) blends

Kuo Chan Chiou, Feng Chih Chang, Yiu Wing Mai

Research output: Journal article publication › Journal article › Academic research › peer-review

29 Citations (Scopus)

Abstract

The essential work of fracture (EWF) method has aroused great interest and has been used to characterize the fracture toughness for a range of ductile metals, polymers and composites. In the plastics industry, for purposes of practical design and ranking of candidate materials, it is important to evaluate the impact essential work of fracture at high-rate testing of polymers and polymer blends. In this paper, the EWF method has been utilized to determine the high-rate specific essential fracture work, w_e, for elastomer-modified PA6/PPE/SMA (50/50/5) blends by notched Charpy tests. It is found that w_e increases with testing temperature and elastomer content for a given specimen thickness. Morphologically, there are two failure mechanisms: shear yielding and pullout of second phase dispersed particles, Shear yielding is dominant in ductile fracture, whereas particle pullout is predominant in brittle fracture.

Original language	English
Pages (from-to)	1007-1018
Number of pages	12
Journal	Polymer Engineering and Science
Volume	41
Issue number	6
DOIs	https://doi.org/10.1002/pen.10802
Publication status	Published - Jun 2001
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Polymers and Plastics
Materials Chemistry

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10.1002/pen.10802

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title = "Impact specific essential work of fracture of compatibilized polyamide-6 (PA6)/poly(phenylene ether) (PPE) blends",

abstract = "The essential work of fracture (EWF) method has aroused great interest and has been used to characterize the fracture toughness for a range of ductile metals, polymers and composites. In the plastics industry, for purposes of practical design and ranking of candidate materials, it is important to evaluate the impact essential work of fracture at high-rate testing of polymers and polymer blends. In this paper, the EWF method has been utilized to determine the high-rate specific essential fracture work, we, for elastomer-modified PA6/PPE/SMA (50/50/5) blends by notched Charpy tests. It is found that we increases with testing temperature and elastomer content for a given specimen thickness. Morphologically, there are two failure mechanisms: shear yielding and pullout of second phase dispersed particles, Shear yielding is dominant in ductile fracture, whereas particle pullout is predominant in brittle fracture.",

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Impact specific essential work of fracture of compatibilized polyamide-6 (PA6)/poly(phenylene ether) (PPE) blends

Abstract

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