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    Author(s): Hongyi Mi; Chien-Hao Liu; Tzu-Husan Chang; Jung-Hun Seo; Huilong Zhang; Sang June Cho; Nader Behdad; Zhenqiang Ma; Chunhua Yao; Zhiyong Cai; Shaoqin Gong
    Date: 2016
    Source: Cellulose. 23(3): 1989-1995.
    Publication Series: Scientific Journal (JRNL)
    Station: Forest Products Laboratory
    PDF: View PDF  (853.0 KB)

    Description

    Wood pulp cellulose nanofibrils (CNF) thin film is a novel recyclable and biodegradable material. We investigated the microwave dielectric properties of the epoxy coated-CNF thin film for potential broad applications in flexible high speed electronics. The characterizations of dielectric properties were carried out in a frequency range of 1–10 GHz. The dielectric constant and loss tangent were extracted by using measurements of microstrip transmission lines that were built on the epoxy coated- CNF film and combined with Agilent Advanced Design System simulations. The RF property for the epoxy coated-CNF was compared to that of commercial polyethylene terephthalate film (PET). With the comparable microwave properties of non-biodegradable PET film, our study suggests that the epoxy coated-CNF film is a suitable biodegradable and environment-friendly substrate for flexible microwave and other applications.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Mi, Hongyi; Liu, Chien-Hao; Chang, Tzu-Husan; Seo, Jung-Hun; Zhang, Huilong; Cho, Sang June; Behdad, Nader; Ma, Zhenqiang; Yao, Chunhua; Cai, Zhiyong; Gong, Shaoqin. 2016. Characterizations of biodegradable epoxy-coated cellulose nanofibrils (CNF) thin film for flexible microwave applications. Cellulose. 23(3): 1989-1995.

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    Keywords

    Dielectric characterization, epoxy coated-cellulose nanofibrils (CNF), biodegradable, transmission line measurement, flexible substrate, RF loss

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