Electrothermally triggered selective shape memory capabilities of CNT doped nanocomposites by Digital Light Processing

Cortés, Alejandro Ángeles; Romate, Xoan F. Sánchez; Aguilar, Jose L. Castro; Jiménez‐Suárez, Alberto; Campo, M.

doi:10.1016/j.compscitech.2021.109185

Cited by 5 publications

(1 citation statement)

References 35 publications

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“…Multiwalled carbon nanotubes (MWCNTs), as a kind of vigorously developed carbon-based filler, have been widely used to tailor mechanical and electrical properties of polymer nanocomposites. − The enhancement or functionalization of the nanocomposites is significantly determined by the dispersion, orientation, and distribution of MWCNTs in polymers. However, commercial MWCNTs are manufactured in primary agglomerates, which are a few to several hundred microns due to the bundling of massive MWCNTs.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Dispersion of Individual Multiwalled Carbon Nanotubes by Polylactide in High Elastic State

Song

Zhang

et al. 2023

Ind. Eng. Chem. Res.

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The dispersion of individual multiwalled carbon nanotubes (MWCNTs) by solvent-free methods is always a difficult case. The polymer masterbatch fabricated by melt processing is a straightforward and solventfree form to store high content of dispersed fillers stably. However, it is difficult for ordinary polymer melt processing methods to reduce the primary agglomerates of MWCNTs to nanometer size and even more impossible to achieve the dispersion of individual MWCNTs in high viscous polymer melt without the use of solvents. This study utilizes the forced flow field of amorphous polylactide in high elastic state to generate strong stress and unrecoverable shaping. The dispersion of up to 30 wt % individual MWCNTs was achieved. Interestingly, high dielectric constant (18.6 at 10.2 Hz) and low dielectric loss (0.30 at 10.2 Hz) features could be acquired by just increasing the content of individual MWCNTs to 5 wt %. The dispersion mechanism was also proposed. The processing method is suggested as an easy and green method for efficient dispersion and extremely long-term storage of individual MWCNTs.

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