Surface properties of woody thin boards composed of commercially available lignin and cellulose: Relationship between the orientation of lignin and water repellency

Toshinori Shimanouchi, Tomoya Kamba, Wei Yang, Satoka Aoyagi, Yukitaka Kimura

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)406-413
Number of pages8
JournalApplied Surface Science
Volume347
DOIs
Publication statusPublished - Aug 30 2015

Fingerprint

Lignin
Cellulose
Surface properties
Water
Contact angle
Compression molding
Hydrophobicity
Infrared spectroscopy
Atomic force microscopy
Permittivity
Scanning electron microscopy

Keywords

  • Cellulose
  • Hydrophobicity
  • Lignin
  • Roughness
  • Water repellency
  • Woody thin board

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

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title = "Surface properties of woody thin boards composed of commercially available lignin and cellulose: Relationship between the orientation of lignin and water repellency",
abstract = "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.",
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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

PY - 2015/8/30

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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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