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Elastic-resilience-induced dispersion of carbon nanotubes: A novel way of fabricating high performance elastomer

机译：弹性回弹诱导的碳纳米管分散：一种制备高性能弹性体的新方法

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摘要

State-of-the-art processes cannot achieve rubber/multi-walled carbon nanotube (MWCNT) composites with satisfactory performance by using pristine MWCNTs and conventional processing equipment. In this work, high performance rubber/MWCNT composites featuring a combination of good mechanical properties, electrical and thermal conductivities and damping capacity over a wide temperature range are fabricated based on a well-developed master batch process. It is demonstrated that the MWCNTs are dispersed homogeneously due to the disentanglement induced by well-wetting and shearing, and the elastic-resilience-induced dispersion of the MWCNTs by rubber chains via the novel processing method. To further enhance the efficacy of elastic-resilience- induced dispersion for MWCNTs, a slightly pre-crosslinked network is constructed in the master batch. Consequently, we obtain rubber/MWCNT composites with unprecedented performance by amplifying the reinforcing effect of relatively low MWCNT loading. This work provides a novel insight into the fabrication of high performance functional elastomeric composites with pristine CNTs by taking advantage of the unique elastic resilience of rubber chains as the driving force for the disentanglement of CNTs.
机译：通过使用原始的MWCNT和传统的加工设备，先进的工艺无法获得性能令人满意的橡胶/多壁碳纳米管（MWCNT）复合材料。在这项工作中，基于成熟的母料工艺，制造了兼具良好机械性能，导电性和导热性以及在宽温度范围内的阻尼能力的高性能橡胶/ MWCNT复合材料。通过新颖的加工方法证明，由于良好的润湿和剪切引起的缠结，以及由于橡胶链的弹性回弹引起的MWCNT的分散，使MWCNT均匀分散。为了进一步提高MWCNTs的弹性回弹诱导的分散效果，在母料中构建了一个略微预交联的网络。因此，我们通过放大相对较低的MWCNT载荷的增强效果，获得了具有前所未有性能的橡胶/ MWCNT复合材料。这项工作通过利用橡胶链独特的弹性回弹力作为解开CNT的驱动力，为用原始CNT制造高性能功能性弹性体复合材料提供了新颖的见解。

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