Enhancing Microfibrillated Cellulose Reinforcing Efficiency in Epoxy Composites by Graphene Oxide Crosslinking

Enhancing Microfibrillated Cellulose Reinforcing Efficiency in Epoxy Composites by Graphene Oxide Crosslinking

Bibliographic Details
Main Author: Qiang, Yunyang
Language:English
Published: Case Western Reserve University School of Graduate Studies / OhioLINK 2019
Subjects:
Polymers
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=case1557317010889925
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spelling ndltd-OhioLink-oai-etd.ohiolink.edu-case15573170108899252021-08-03T07:11:12Z Enhancing Microfibrillated Cellulose Reinforcing Efficiency in Epoxy Composites by Graphene Oxide Crosslinking Qiang, Yunyang Polymers Microfibrillated Cellulose (MFC) has the potential to be used as an alternative reinforcement to glass fibers. However, glass fiber reinforced epoxy composites at usual operating temperatures (below Tg) are still superior to MFC infused epoxy composites. In this work, MFC with variable amounts of Graphene Oxide (GO) crosslinking were prepared using epichlorohydrin (ECH). Crosslinked MFC/GO epoxy composites with constant fiber content and different GO loadings were fabricated by impregnation of the freeze-dried crosslinked MFC/GO mat with the epoxy/hardener mixture followed by compression molding. Composites with 15 vol. % MFC and 2 wt % GO crosslinking, have a storage modulus in the glassy state (40 °C) of 6.5 GPa, which surpasses the storage modulus of glass fiber/epoxy composite with similar fiber volume content (6.0 GPa at 40 °C). Thus, with a small amount of GO crosslinking. MFC was shown to possess superior modulus and lower weight when compared to glass fiber composites at similar fiber volume content. 2019-08-28 English text Case Western Reserve University School of Graduate Studies / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=case1557317010889925 http://rave.ohiolink.edu/etdc/view?acc_num=case1557317010889925 unrestricted This thesis or dissertation is protected by copyright: some rights reserved. It is licensed for use under a Creative Commons license. Specific terms and permissions are available from this document's record in the OhioLINK ETD Center.
collection NDLTD
language English
sources NDLTD
topic Polymers
spellingShingle Polymers
Qiang, Yunyang
Enhancing Microfibrillated Cellulose Reinforcing Efficiency in Epoxy Composites by Graphene Oxide Crosslinking
author Qiang, Yunyang
author_facet Qiang, Yunyang
author_sort Qiang, Yunyang
title Enhancing Microfibrillated Cellulose Reinforcing Efficiency in Epoxy Composites by Graphene Oxide Crosslinking
title_short Enhancing Microfibrillated Cellulose Reinforcing Efficiency in Epoxy Composites by Graphene Oxide Crosslinking
title_full Enhancing Microfibrillated Cellulose Reinforcing Efficiency in Epoxy Composites by Graphene Oxide Crosslinking
title_fullStr Enhancing Microfibrillated Cellulose Reinforcing Efficiency in Epoxy Composites by Graphene Oxide Crosslinking
title_full_unstemmed Enhancing Microfibrillated Cellulose Reinforcing Efficiency in Epoxy Composites by Graphene Oxide Crosslinking
title_sort enhancing microfibrillated cellulose reinforcing efficiency in epoxy composites by graphene oxide crosslinking
publisher Case Western Reserve University School of Graduate Studies / OhioLINK
publishDate 2019
url http://rave.ohiolink.edu/etdc/view?acc_num=case1557317010889925
work_keys_str_mv AT qiangyunyang enhancingmicrofibrillatedcellulosereinforcingefficiencyinepoxycompositesbygrapheneoxidecrosslinking
_version_ 1719455582233034752

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