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Water-Based Approach to High-Strength All-Cellulose Material with Optical Transparency
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center. KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center. KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0001-5818-2378
2018 (English)In: ACS SUSTAINABLE CHEMISTRY & ENGINEERING, ISSN 2168-0485, Vol. 6, no 1, p. 501-510Article in journal (Refereed) Published
Abstract [en]

All-cellulose composites are usually prepared by a partial cellulose dissolution approach, using of ionic liquids or organic solvents. Here, an all-cellulose film based on moist ramie fibers was prepared by hot-pressing. The original ramie fiber was degummed, alkali treated, aligned, and mounted into a specially designed mold. The wet ramie fiber "cake" was pressed into a transparent film. The structure, mechanical properties, moisture sorption, and optical properties of the films were investigated using scanning electron microscopy (SEM), X-ray diffraction, tensile tests, gravimetric method, and integrating sphere devices. The all-cellulose films showed an ultimate strength of 620 MPa and a Young's modulus of 39.7 GPa with low moisture sorption and optical transmittance of 85%. These eco-friendly all-cellulose films are of interest for laminated composites, as coatings and in photonics applications.

Place, publisher, year, edition, pages
AMER CHEMICAL SOC , 2018. Vol. 6, no 1, p. 501-510
Keywords [en]
Ramie, All-cellulose composite, Compression molding, Mechanical strength, Interface, High transparency, Low moisture sorption
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-221958DOI: 10.1021/acssuschemeng.7b02755ISI: 000419536800053Scopus ID: 2-s2.0-85040046287OAI: oai:DiVA.org:kth-221958DiVA, id: diva2:1178638
Note

QC 20180130

Available from: 2018-01-30 Created: 2018-01-30 Last updated: 2018-03-13Bibliographically approved

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Berglund, Lars

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CiteExportLink to record
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Citation style
  • apa
  • harvard1
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Output format
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