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首页> 外文期刊>Journal of Materials Science >Mechanical, electrical and electro-mechanical properties of thermoplastic elastomer styrene-butadiene-styrene/multiwall carbon nanotubes composites
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Mechanical, electrical and electro-mechanical properties of thermoplastic elastomer styrene-butadiene-styrene/multiwall carbon nanotubes composites

机译：热塑性弹性体苯乙烯-丁二烯-苯乙烯/多壁碳纳米管复合材料的机械，电气和机电性能

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摘要

Composites of styrene-butadiene-styrene (SBS) block copolymer with multiwall carbon nanotubes were processed by solution casting to investigate the influence of filler content, the different ratios of styrene/butadiene in the copolymer and the architecture of the SBS matrix on the electrical, mechanical and electro-mechanical properties of the composites. It was found that filler content and elastomer matrix architecture influence the percolation threshold and consequently the overall composite electrical conductivity. The mechanical properties are mainly affected by the styrene and filler content. Hopping between nearest fillers is proposed as the main mechanism for the composite conduction. The variation of the electrical resistivity is linear with the deformation. This fact, together with the gauge factor values in the range of 2-18, results in appropriate composites to be used as (large) deformation sensors.
机译：通过溶液流延加工苯乙烯-丁二烯-苯乙烯（SBS）嵌段共聚物与多壁碳纳米管的复合材料，以研究填料含量，共聚物中苯乙烯/丁二烯的不同比例以及SBS基体结构对电学的影响，复合材料的机械和机电性能。发现填料含量和弹性体基质结构影响渗滤阈值，并因此影响总复合电导率。机械性能主要受苯乙烯和填料含量的影响。提出最接近的填充物之间的跳变是复合导电的主要机理。电阻率的变化与变形成线性关系。这个事实，加上规格系数值在2-18之间，导致合适的复合材料可用作（大）变形传感器。

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