Impact strength and crystallization behavior of nano-SiOx/poly(phenylene sulfide) (PPS) composites with heat-treated PPS

被引：56

作者：

Lu, D

Mai, YW

Li, RKY

Ye, L

机构：

[1] City Univ Hong Kong, MEEM, Kowloon, Hong Kong, Peoples R China

[2] City Univ Hong Kong, Dept Phys & Mat Sci, Kowloon, Hong Kong, Peoples R China

[3] Univ Sydney, CAMT, Sch Aerosp Mech & Mechatron Engn J07, Sydney, NSW 2006, Australia

来源：

MACROMOLECULAR MATERIALS AND ENGINEERING | 2003年 / 288卷 / 09期

关键词：

impact resistance; nanocomposites; nano-SiOx; PPS; thermal treatment;

D O I：

10.1002/mame.200300088

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 recieved" 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 matix, hence increasing the Izod imact strength of the nanocomposites.

引用

页码：693 / 698

页数：6

共 44 条

[1]

BENNI P, 1998, J MATER SCI LETT, V8, P358

[2]

Caminiti R, 2001, MACROMOL CHEM PHYSIC, V202, P2902

[3] HIGHLY CONDUCTING CHARGE-TRANSFER COMPLEXES OF A PROCESSIBLE POLYMER - POLY(PARA-PHENYLENE SULFIDE) [J].