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Simulated orientational morphology from the measured transient rheology of polycarbonate–carbon fiber composites

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A Correction to this article was published on 08 June 2022

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Abstract

We prepared carbon fiber (CF) reinforced polycarbonates (CFR-PC) by co-rotating twin screw extruder and injection molding. We simulated the orientational morphology of CFR-PC by inverse calculation from the measured transient stress curve using 8 mm disk rotational rheometer. The shear stress evolution was expressed by a function of the Fredholm integral of the first kind; total stress was expressed by a linear combination contributed from a stress at each orientation state. We employed an extended White–Metzner model with Dinh–Armstrong flow-fiber coupling term as a constitutive equation for the evaluation of stress at each orientation state. The probability density of each orientation state was determined by the Tikhonov regularization method from the measured stress overshoot. Finally, the orientation distribution functions (ODFs) of CFR-PC were determined by maximum entropy method from the determined probability density of orientation state. For the CFR-PCs, the simulated morphology by the ODF was well consistent with the morphology obtained by optical microscopy.

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Acknowledgements

We acknowledge the financial support from Dong-A university research fund (2022).

Funding

This work was funded by MOTIE (Grant no. 20000479, 20010315); Korea Institute of Science and Technology (Grant no. 2E30631); National Research Foundation of Korea (Grant no. 2019R1A5A8080326).

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Authors and Affiliations

  1. Department of Chemical Engineering (BK-21 Four Graduate Program), Dong-A University, Busan, 49315, Republic of Korea

    Javad Rahmannezhad, Hyeon Dam Jeong & Heon Sang Lee

  2. Chemical R&D Division, Samyang Corporation, 730, Daedeok-daero, Daejeon, 34055, South Korea

    Seung Chan Ryu

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  1. Javad Rahmannezhad
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Correspondence to Heon Sang Lee.

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The original online version of this article was revised: Due to an unfortunate oversight an author name has been misspelled. It should be read: Seung Chan Ryu instead of Seungchan Ryu.

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Rahmannezhad, J., Jeong, H.D., Ryu, S.C. et al. Simulated orientational morphology from the measured transient rheology of polycarbonate–carbon fiber composites. Korea-Aust. Rheol. J. 34, 197–210 (2022). https://doi.org/10.1007/s13367-022-00031-0

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