Poly(phenylene sulfide)/Low Melting Point Metal Composites. I. Transient Viscoelastic Properties and Crystallization Kinetics. Journal of Polymer Science Part B: Polymer Physics, 2008, 46, 677-690.
作者：Defeng Wu, Lanfeng Wu, Juan He, Ming Zhang, Changhao Yan.
關鍵字：poly(phenylene sulfide); low melting point metal; composites; viscoelasticity; crystallization.
論文來源：期刊
具體來源：Journal of Polymer Science Part B: Polymer Physics
發(fā)表時間：2008年
Journal of Polymer Science Part B: Polymer Physics, 2008, 46, 677-690.
ABSTRACT:
Poly(phenylene sulfide)/low melting point metal composites (PPSMs) with various loading levels were prepared by melt compounding. The nonisothermal crystallization behavior and transient viscoelastic properties were characterized respectively by the DSC, POM, DMA and parallel plate rheometer. The results reveal that the low melting point metal (LMPM) particles show nice dispersion at relative low content levels (<30wt%). The PPSMs composites present dual characteristics of both the filled polymer composite and polymer blend system in their transient viscoelastic behaviors, which results in occurrence of the stress overshoots with long relaxation time and non-zero residual stress especially at high shear levels. During the crystallization process, the presence of those deformable LMPM droplets facilitates the crystallization kinetics of PPS due to their flow-promoting action. On the other hand, the LMPM has no heterogeneous nucleating effect and, only plays the role of inert filler, which results in the degradation of the crystal structure of PPS.
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