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Localization behavior of multiwalled carbon nanotubes in ternary blends of PC, SAN, and PMMA

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Abstract

In this study, the localization behavior of multiwalled carbon nanotubes (MWCNTs) was investigated in the ternary blends based on PC/SAN/PMMA (60/30/10). The major interest was focused on the effects of two different SANs having AN contents of 24 and 32 wt.% (SAN24 and SAN32, respectively) and PMMA on the phase structure of the composites. It was found that the spreading of PMMA around SAN32 was pronounced and relatively higher amount of MWCNTs were located at the interface of PC-PMMA, while the spreading behavior of PMMA around SAN24 was rather weak and MWCNTs were mostly found in PC phase. The unique phase structure characterized by the spreading of PMMA on SAN32 and the confinement of MWCNTs at the PC-PMMA interface was beneficial for the construction of electrical conduction pathways, as confirmed by the volume resistivities of the composites. It was shown that the volume resistivity of the composite containing SAN32 is lower than that of SAN24 at the same content of MWCNTs. The observed phase morphology was also correlated with the rheological properties of the composites.

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Acknowledgment

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (NRF-2019R1I1A2A01051610).

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  1. Department of Chemical Engineering, Dankook University, Yongin, 16890, Republic of Korea

    Seok Ho Yang, Jeong Woo Lee & Hyungsu Kim

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  1. Seok Ho Yang
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  2. Jeong Woo Lee
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  3. Hyungsu Kim
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Correspondence to Hyungsu Kim.

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Yang, S.H., Lee, J.W. & Kim, H. Localization behavior of multiwalled carbon nanotubes in ternary blends of PC, SAN, and PMMA. Korea-Aust. Rheol. J. 32, 145–152 (2020). https://doi.org/10.1007/s13367-020-0013-6

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