Effects of ball milling dispersion of nano-Si[O.sub.x] particles on impact strength and crystallization behavior of nano-Si[O.sub.x]-poly(phenylene ... article from: Polymer Engineering and Science

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From the author: Ball milling and mixing with strong shear force and strike force were applied to get fine dispersion of nano-Si[O.sub.x] particles in poly(phenylene sulfide) (PPS) powder. Nano-Si[O.sub.x]/PPS composites were manufactured by intensive compounding with 3 wt% nano-Si[O.sub.x] particles. Effects of the ball milling dispersion on crystal behavior and impact strength of nano-Si[O.sub.x]/PPS nanocomposites were studied. Physical mechanisms of ball milling dispersion were investigated. Evaluations based on both WAXD and DSC indicates that crystallization behavior of nano-Si[O.sub.x]/heat-treated PPS (HT-PPS) nanocomposites was influenced by the ball milling process. Their crystallinity was 25% less while Izod impact strength was 89% better than those of as-received neat PPS. Increased kinetic energy via ball milling by external work makes nano-Si[O.sub.x] able to overcome the attraction from itself to prevent agglomeration. Interfacial bonding of two phases between nano-Si[O.sub.x] and PPS was enhanced by crosslinking in HT-PPS and reduction in surface tension of interface during ball milling. The bonds allow Si[O.sub.x] to dissipate energy and thus improve PPS impact strength from the addition of nano-Si[O.sub.x]. POLYM. ENG. SCI., 46:820-825, 2006. [c] 2006 Society of Plastics Engineers

Citation Details
Title: Effects of ball milling dispersion of nano-Si[O.sub.x] particles on impact strength and crystallization behavior of nano-Si[O.sub.x]-poly(phenylene sulfide) nanocomposites.
Author: Dan Lu
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: June 1, 2006
Publisher: Thomson Gale
Volume: 46 Issue: 6 Page: 820(6)

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