TY - JOUR
T1 - Surface properties of woody thin boards composed of commercially available lignin and cellulose
T2 - Relationship between the orientation of lignin and water repellency
AU - Shimanouchi, Toshinori
AU - Kamba, Tomoya
AU - Yang, Wei
AU - Aoyagi, Satoka
AU - Kimura, Yukitaka
N1 - Funding Information:
We thank Prof. Dr. Tsutomu Ono (Okayama Univ.) for the SEM observations. This research was also supported by a Project from Ministry of Education, Cultures, Sports, Science and Technology, Japan (MEXT) for Environmental and Life Scientific Studies on the Integration of Low-Carbon Society and Ensuring Food Safety and Security.
Publisher Copyright:
© 2015, Elsevier B.V. All rights reserved.
PY - 2015/8/30
Y1 - 2015/8/30
N2 - Woody thin boards were prepared from lignin, cellulose, and water by compression molding at 180°C and 25 MPa for 10 min. Boards with higher contact angles gave lower values of relative permittivity on their surface. Attenuated-total reflection Fourier transfer infrared spectroscopy suggested that more lignin existed on the surface of the boards with the high contact angle, which was also supported by scanning electron microscopy and atomic force microscopy. Our findings thus revealed that the orientation of lignin at the surface resulted in increased hydrophobicity of the surface and contributed to the enhancement of water repellency.
AB - Woody thin boards were prepared from lignin, cellulose, and water by compression molding at 180°C and 25 MPa for 10 min. Boards with higher contact angles gave lower values of relative permittivity on their surface. Attenuated-total reflection Fourier transfer infrared spectroscopy suggested that more lignin existed on the surface of the boards with the high contact angle, which was also supported by scanning electron microscopy and atomic force microscopy. Our findings thus revealed that the orientation of lignin at the surface resulted in increased hydrophobicity of the surface and contributed to the enhancement of water repellency.
KW - Cellulose
KW - Hydrophobicity
KW - Lignin
KW - Roughness
KW - Water repellency
KW - Woody thin board
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U2 - 10.1016/j.apsusc.2015.03.139
DO - 10.1016/j.apsusc.2015.03.139
M3 - Article
AN - SCOPUS:84964374661
SN - 0169-4332
VL - 347
SP - 406
EP - 413
JO - Applied Surface Science
JF - Applied Surface Science
ER -