Impact strength and crystallization behavior of Nano-SiO x/poly(phenylene sulfide) (PPS) composites with heat-treated PPS

Dan Lu; Yiu Wing Mai; Robert K.Y. Li; Lin Ye

doi:10.1002/mame.200300088

Impact strength and crystallization behavior of Nano-SiO _x/poly(phenylene sulfide) (PPS) composites with heat-treated PPS

Dan Lu, Yiu Wing Mai, Robert K.Y. Li, Lin Ye

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

58 Citations (Scopus)

Abstract

The effects of heat treatment on the crystal structure and impact strength of poly(phenylene sulfide) (PPS) and nano-SiO_x/ PPS nanocomposites were studied. The molecular weight of heat-treated neat PPS was increased by 28% due to the crosslinking reaction that changed its crystal morphology. Also, the crystallinity was reduced by 18%, leading to an improvement of the Izod impact strength by 66%. Nano-SiO_x/PPS composites were manufactured by intensive compounding with 3 wt.-% nano-SiO_x particles treated by an epoxy functional group. Test results showed that the Izod impact strength of nano-SiO_x/heat-treated PPS composites was 91% better and the crystallinity 27% less compared to the same properties of "as received" neat PPS. Nano-SiO_x has a high specific surface area and a high surface energy; its grafted epoxy group promotes interfacial adhesion with the PPS matrix, hence increasing the Izod impact strength of the nanocomposites.

Original language	English
Pages (from-to)	693-698
Number of pages	6
Journal	Macromolecular Materials and Engineering
Volume	288
Issue number	9
DOIs	https://doi.org/10.1002/mame.200300088
Publication status	Published - 10 Sept 2003
Externally published	Yes

Keywords

Impact resistance
Nano-SiO
Nanocomposites
PPS
Thermal treatment

ASJC Scopus subject areas

General Chemical Engineering
Polymers and Plastics
Organic Chemistry
Materials Chemistry

More information

10.1002/mame.200300088

Cite this

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title = "Impact strength and crystallization behavior of Nano-SiO x/poly(phenylene sulfide) (PPS) composites with heat-treated PPS",

abstract = "The effects of heat treatment on the crystal structure and impact strength of poly(phenylene sulfide) (PPS) and nano-SiOx/ PPS nanocomposites were studied. The molecular weight of heat-treated neat PPS was increased by 28% due to the crosslinking reaction that changed its crystal morphology. Also, the crystallinity was reduced by 18%, leading to an improvement of the Izod impact strength by 66%. Nano-SiOx/PPS composites were manufactured by intensive compounding with 3 wt.-% nano-SiOx particles treated by an epoxy functional group. Test results showed that the Izod impact strength of nano-SiOx/heat-treated PPS composites was 91% better and the crystallinity 27% less compared to the same properties of {"}as received{"} neat PPS. Nano-SiOx has a high specific surface area and a high surface energy; its grafted epoxy group promotes interfacial adhesion with the PPS matrix, hence increasing the Izod impact strength of the nanocomposites.",

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author = "Dan Lu and Mai, {Yiu Wing} and Li, {Robert K.Y.} and Lin Ye",

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AU - Lu, Dan

AU - Mai, Yiu Wing

AU - Li, Robert K.Y.

AU - Ye, Lin

PY - 2003/9/10

Y1 - 2003/9/10

N2 - The effects of heat treatment on the crystal structure and impact strength of poly(phenylene sulfide) (PPS) and nano-SiOx/ PPS nanocomposites were studied. The molecular weight of heat-treated neat PPS was increased by 28% due to the crosslinking reaction that changed its crystal morphology. Also, the crystallinity was reduced by 18%, leading to an improvement of the Izod impact strength by 66%. Nano-SiOx/PPS composites were manufactured by intensive compounding with 3 wt.-% nano-SiOx particles treated by an epoxy functional group. Test results showed that the Izod impact strength of nano-SiOx/heat-treated PPS composites was 91% better and the crystallinity 27% less compared to the same properties of "as received" neat PPS. Nano-SiOx has a high specific surface area and a high surface energy; its grafted epoxy group promotes interfacial adhesion with the PPS matrix, hence increasing the Izod impact strength of the nanocomposites.

AB - The effects of heat treatment on the crystal structure and impact strength of poly(phenylene sulfide) (PPS) and nano-SiOx/ PPS nanocomposites were studied. The molecular weight of heat-treated neat PPS was increased by 28% due to the crosslinking reaction that changed its crystal morphology. Also, the crystallinity was reduced by 18%, leading to an improvement of the Izod impact strength by 66%. Nano-SiOx/PPS composites were manufactured by intensive compounding with 3 wt.-% nano-SiOx particles treated by an epoxy functional group. Test results showed that the Izod impact strength of nano-SiOx/heat-treated PPS composites was 91% better and the crystallinity 27% less compared to the same properties of "as received" neat PPS. Nano-SiOx has a high specific surface area and a high surface energy; its grafted epoxy group promotes interfacial adhesion with the PPS matrix, hence increasing the Izod impact strength of the nanocomposites.

KW - Impact resistance

KW - Nano-SiO

KW - Nanocomposites

KW - PPS

KW - Thermal treatment

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