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Wettability of oil heat-treated bamboo and bonding strength of laminated bamboo board
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Materials. Nanjing Forestry University, China.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Materials.ORCID iD: 0000-0002-9156-3161
2015 (English)In: Industrial crops and products (Print), ISSN 0926-6690, E-ISSN 1872-633X, Vol. 69, 15-20 p.Article in journal (Refereed) Published
Abstract [en]

In order to improve the interface properties of bamboo in laminated board applications for severe outdoor environment, bamboo sheets were heat treated in soybean oil and post oil extracted in this paper. Following oil heat treatment at 180 degrees C for 2 h, bamboo specimens were either removed from the oil immediately or left in the oil until they were cooled to room temperature. Contact angle measurements before and after oil heat treatment showed a significant increase in the hydrophobicity of bamboo, and these changes differed based on the process parameters. Results from scanning electron microscopy and Fourier transform infrared spectroscopy indicated that these phenomena may be due to the combination effect of the change of chemical composition and the surplus oil on the surface of modified bamboo. Then, the ethanol extraction process was subsequently applied to remove the surplus oil. Finally, the results of bonding strength tests on laminated bamboo boards prepared from oil heat-treated samples which thereafter had been subjected to ethanol extraction showed acceptable interface properties, although lower than the reference.

Place, publisher, year, edition, pages
2015. Vol. 69, 15-20 p.
Keyword [en]
Bamboo, Bonding strength, Laminated bamboo board, Oil heat treatment, Wettability, Chemical bonds, Diffusion bonding, Ethanol, Extraction, Fourier transform infrared spectroscopy, Heat treatment, Laminating, Oil shale, Scanning electron microscopy, Wetting, Chemical compositions, Combination effects, Ethanol extraction, Interface property, Laminated bamboo, Outdoor environment, Process parameters, Soybean oil, chemical composition, FTIR spectroscopy, heating, hydrophobicity, vegetable oil, Glycine max
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-167701DOI: 10.1016/j.indcrop.2015.02.008ISI: 000355365300003Scopus ID: 2-s2.0-84922796742OAI: oai:DiVA.org:kth-167701DiVA: diva2:815946
Funder
Swedish Research Council Formas, 2014-172
Note

QC 20150602

Available from: 2015-06-02 Created: 2015-05-22 Last updated: 2017-12-04Bibliographically approved

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Wålinder, Magnus E. P.

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