Elemental sulfur has been introduced to the suspensions of polycarbonate (PC), poly(styrene-co-acrylonitrile) (SAN) and multi-walled carbon nanotubes (MWCNT). A particular interest was focused on the effect of sulfur diradicals on the rheological properties and phase structure of the sonicated composites. The melt viscosities, elasticities, and relaxation moduli of the PC/SAN/MWCNT composites were significantly increased by sulfur during the sonication of less than 10 min. In the morphological analysis, the MWCNTs were found to be located at the interface of PC/SAN and inside of SAN domains as well, which is contrary to the prediction of wetting coefficient criteria. Interestingly, the volume resistivity of the composites was improved by the addition of sulfur. The unique features found in the sulfur added composites of PC/SAN/ MWCNT are explained by the state of MWCNT dispersion and interfacial effects.

中文翻译：

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硫对聚碳酸酯/聚苯乙烯-丙烯腈/多壁碳纳米管复合材料流变性能和相结构的影响

元素硫已被引入到聚碳酸酯（PC），聚苯乙烯-丙烯腈（SAN）和多壁碳纳米管（MWCNT）的悬浮液中。特别引起关注的是硫双自由基对超声复合材料的流变性质和相结构的影响。在不到10分钟的超声处理过程中，硫磺显着提高了PC / SAN / MWCNT复合材料的熔体粘度，弹性和松弛模量。在形态分析中，发现MWCNT也位于PC / SAN的界面以及SAN域的内部，这与对润湿系数标准的预测相反。有趣的是，通过添加硫提高了复合材料的体积电阻率。