A feasible strategy to constructing hybrid conductive networks in PLA-based composites modified by CNT-d-RGO particles and PEG for mechanical and electrical properties
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- A feasible strategy to constructing hybrid conductive networks in PLA-based composites modified by CNT-d-RGO particles and PEG for mechanical and electrical properties
- 发表刊物：
- POLYMERS FOR ADVANCED TECHNOLOGIES
- 摘要：
- Carbon nanotubes (CNTs) and reduced graphene oxide (RGO) were successfully assembled by chemical reaction to obtain CNT-d-RGO particles. Then, a home-made dynamic impregnating device was used to prepare hybrid CNT-d-RGO/polyethylene glycol (PEG). Next, the different modifiers, including CNTs, GO, CNT-d-RGO, PEG, and CNT-d-RGO/PEG, were, respectively, added into poly-(lactic acid) (PLA) matrix via melt-compounding. The dispersed morphology for these different modifiers within the PLA matrix was confirmed by SEM and TEM observations. Especially, compared with the identical weight ratio of CNT-d-RGO, the hybrid CNT-d-RGO/PEG within the PLA matrix exhibited an excellent exfoliated and interconnected networks morphology. Moreover, compared with pure PLA, not only the crystallinity of all PLA-based composites notably improved, but half-crystallization time was also shortened. Furthermore, despite the addition of different modifiers, the crystal form of PLA-based composites remained unchanged. Noticeably, compared with those of pure PLA, the tensile stress, strain, and modulus of PLA composite added with CNT-d-RGO/PEG increased by 29.4%, 4.1%, and 56.1%, respectively, and the V-notch impact strength slightly improved. In addition, compared with pure PLA, volume resistivity of the PLA composite added with 1 wt% CNT-d-RGO/PEG decreased by 93.1%, and its volume conductivity increased by five orders of magnitude.
- 合写作者：
- Jia, Shikui; Yu, Demei; Zhu, Yan; Su, Xiaolong; Wang, Zhong; Chen, Ligui
- 是否译文：
- 否
- 发表时间：
- 2019-11-01