Plasma enhanced modification of TMP fiber and its effect on tensile strength of wood fiber/PP composite

  • Authors: Lee, Sangyeob; Shupe, Todd F.; Hse, Chung Y.
  • Publication Year: 2009
  • Publication Series: Miscellaneous Publication
  • Source: Conference Proceedings Paper In: Hse, Chung-Yun; Jiang, Zehui; Kuo, Mon-Lin, eds. Advanced biomass science and technology for bio-based products: Proceedings of the meeting: 2007 May 23-25; Beijing, China. People’s Republic of China: Chinese Academy of Forestry: 212-223.

Abstract

Plasma-assisted surface treatment on thermomechanical pulp (TMP) fiber and polypropylene (PP) film was investigated to obtain interfacial adhesion at the wood fiber and PP interface. A metal plate between electrodes prevented thermal damage to the TMP fiber handsheets and PP film. Oxygen-plasma treatment provided better surface activation on the TMP fiber and PP film than argon-plasma treatment. When the surfaces of both TMP fiber handsheets and PP film were treated with the oxygen-based plasma, the tensile strength substantially increased. The optimum exposure period for TMP fiber to plasma with ionized oxygen gas was 30-90 sec. and resulted in 43-80% increased tensile strength over the untreated samples. AFM topographies showed that oxygen plasma treatment changed the surface tomography and surface roughness of the wood fiber and PP. Nodular structures were found on the flat areas of the wood fiber and PP after undergoing oxygen plasma treatment. The size of the nodules increased as treatment time increased. The surface roughness decreased with O2 plasma treatment as also did the thermal characteristics of the glass transition point (Tg) and crystallinity (Xc) from DSC. The RMS roughness and thermal quantities were reduced with 30 seconds of plasma treatment but slightly recovered after 60 seconds of treatment. The treatment also resulted in relative uniform surfaces with reduced RMS of TMP fiber and PP film.

  • Citation: Lee, Sangyeob; Shupe, Todd F.; Hse, Chung Y. 2009. Plasma enhanced modification of TMP fiber and its effect on tensile strength of wood fiber/PP composite. In: Hse, Chung-Yun; Jiang, Zehui; Kuo, Mon-Lin, eds. Advanced biomass science and technology for bio-based products: Proceedings of the meeting: 2007 May 23-25; Beijing, China. People’s Republic of China: Chinese Academy of Forestry: 212-223.
  • Posted Date: August 25, 2009
  • Modified Date: September 28, 2009
  • Print Publications Are No Longer Available

    In an ongoing effort to be fiscally responsible, the Southern Research Station (SRS) will no longer produce and distribute hard copies of our publications. Many SRS publications are available at cost via the Government Printing Office (GPO). Electronic versions of publications may be downloaded, printed, and distributed.

    Publication Notes

    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
    • Our online publications are scanned and captured using Adobe Acrobat. During the capture process some typographical errors may occur. Please contact the SRS webmaster if you notice any errors which make this publication unusable.
    • To view this article, download the latest version of Adobe Acrobat Reader.