Abstract The search of multifunctional epoxy nanocomposites with both strength and toughness combined with smart features such as electrical conductivity is essential in design of advanced materials. In this work, by utilizing a binary nanofiller strategy, both strength and toughness as well as high electrical conductivity are obtained in epoxy with trace nanopolystyrene grafted with epichlorohydrin (nano g-PS) to facilitate the dispersion of multi-walled carbon nanotubes (MWCNTs). The increased tensile strength (37.6%) and flexural strength (34.4%) are acquired in nano g-PS (0.0677 vol%)/MWCNTs (0.0335 vol%)/epoxy in contrast to pure epoxy. A remarkably improved tensile toughness up to 379.2% and an increased elongation at break up to 208.3% are obtained in this epoxy nanohybrid. The synergistic interactions among nano g-PS, MWCNTs and epoxy matrix as well as the state transition of nano g-PS from glassy state to fluid state provide an improved dispersion of nanofillers which is responsible for the increased electrical conductivity and enhanced mechanical properties. The decreased surface resistivity allows these nanohybrids to sufficiently dissipate surface charges as an antistatic material. This work provides an effective way to disperse carbon nanotubes with small amount of thermoplastic PS to simultaneously strengthen and toughen the thermosetting epoxy while introducing highly conductive function.

中文翻译：

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微量电喷雾纳米聚苯乙烯促进多壁碳纳米管的分散：同时增强和增韧环氧树脂

摘要 寻找兼具强度和韧性并兼具导电性等智能特性的多功能环氧纳米复合材料对于先进材料的设计至关重要。在这项工作中，通过利用二元纳米填料策略，在环氧树脂中获得了强度和韧性以及高导电性，其中微量纳米聚苯乙烯接枝了环氧氯丙烷（纳米 g-PS），以促进多壁碳纳米管（MWCNT）的分散. 与纯环氧树脂相比，纳米 g-PS (0.0677 vol%)/MWCNTs (0.0335 vol%)/环氧树脂获得了增加的拉伸强度 (37.6%) 和弯曲强度 (34.4%)。在这种环氧树脂纳米杂化物中获得了高达 379.2% 的显着改善的拉伸韧性和高达 208.3% 的断裂伸长率。纳米 g-PS 之间的协同相互作用，MWCNTs 和环氧树脂基体以及纳米 g-PS 从玻璃态到流体态的状态转变提供了纳米填料的改进分散，这是增加导电性和增强机械性能的原因。降低的表面电阻率允许这些纳米杂化物作为抗静电材料充分消散表面电荷。这项工作提供了一种有效的方法，用少量的热塑性聚苯乙烯分散碳纳米管，同时增强和增韧热固性环氧树脂，同时引入高导电功能。降低的表面电阻率允许这些纳米杂化物作为抗静电材料充分消散表面电荷。这项工作提供了一种有效的方法，用少量的热塑性聚苯乙烯分散碳纳米管，同时增强和增韧热固性环氧树脂，同时引入高导电功能。降低的表面电阻率允许这些纳米杂化物作为抗静电材料充分消散表面电荷。这项工作提供了一种有效的方法，用少量的热塑性聚苯乙烯分散碳纳米管，同时增强和增韧热固性环氧树脂，同时引入高导电功能。