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Flow characteristic during injection molding of PC/MWNT nanocomposites

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Abstract

This work investigates the flow characteristic during injection molding process of PC/MWNT nanocomposites especially focusing on jetting. The initial flow pattern while filling has been compared with that of neat and other particle-filled PCs. The experimental results show that the flow of PC/MWNT 5% is comparable to that of PC/GF 15% and PC/CF 10%. It has been found that small amount of filled MWNT causes significant filling difficulty. Based on rheological investigations, this is attributed to extraordinary shear thinning by MWNT fillers.

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Acknowledgement

This work was supported by a NRF grant funded from the Korea government (No. NRF-2018R1A5A1024127 and 2020R1I1A2065650) and by the Institute Project of Korea Institute of Machinery and Materials (NK226E).

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Authors and Affiliations

  1. Graduate School of NID Fusion Technology, Seoul National University of Science and Technology, Seoul, 01811, Republic of Korea

    Jai-Won Suh

  2. Nano-Mechanical Systems Research Division, Korea Institute of Machinery and Materials, Daejeon, 34013, Republic of Korea

    Yeong-Eun Yoo

  3. Department of Mechanical System Design Engineering, Seoul National University of Science and Technology, Seoul, 01811, Republic of Korea

    Sun Kyoung Kim

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  1. Jai-Won Suh
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  2. Yeong-Eun Yoo
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  3. Sun Kyoung Kim
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Correspondence to Sun Kyoung Kim.

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Suh, JW., Yoo, YE. & Kim, S.K. Flow characteristic during injection molding of PC/MWNT nanocomposites. Korea-Aust. Rheol. J. 32, 261–269 (2020). https://doi.org/10.1007/s13367-020-0025-2

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  • DOI: https://doi.org/10.1007/s13367-020-0025-2

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