Improvement in Surface Properties of Lignocellulosics Using Cold-Plasma Treatment

  • F. Denes
  • R. A. Young

Abstract

Twenty-first Century technologies will require low cost, accessible and high performance materials due to the following reasons:
  • Most of the components of future machinery will have to “survive” under extreme conditions (thermal stability, mechanical strength, chemical inertness, etc.) while meeting the miniaturization requirements;

  • Their bulk structures should be composed of low cost materials. The end of the petroleum era at the beginning of the next millennium will “force” scientists to develop new technologies and high performance materials based mainly on renewable biomaterials;

  • Surface characteristics of these “hybrid” structures should exhibit properties which would allow their use under extreme conditions. Light-weight, thermally- and radiation-stable, chemically inert “skinned” materials will probably replace precious-metal-based heavy and costly structures in space technology applications. Tailored, special electrical and optical surface properties will also permit the creation of ultra-miniaturized high speed circuitry. Molecular recognition will play a central role in future technologies. Immobilized enzymes and oligonucleotides and other biologically important macromolecules will lead, in the next century, to the development of molecular-selective technologies and to the creation of oligonucleotide libraries. Unprecedented highways will open up on this way for the instant identification of diseases and for the development of efficient novel therapeutics.

  • Composite structures should replace specific-materials-based-products for economical, environmental and performance reasons. This approach will require novel surface-compatibization technologies, in the absence of which, high performance composite networks can not be prepared.

Keywords

Contact Angle Cold Plasma Silicon Tetrachloride High Performance Material High Fluorine Content 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A.M. Sarmadi, T.H. Ying, and F. Denes, Eur. Polym. J., 31(9), 847 (1995).CrossRefGoogle Scholar
  2. 2.
    M. Sarmadi and F. Denes, TAPPI Journal, Vol. 79, No. 8, 189 (1996).Google Scholar
  3. 3.
    S. Tasker and J.P.S. Badyal, Polymer, 35(22), 4717 (1994).CrossRefGoogle Scholar
  4. 4.
    Z.Q. Hua, R. Sitaru, F. Denes, and R.A. Young, Mechanism of Oxygen-and Argon-RF-Plasma Induced Surface Chemistry of Cellulose, Plasmas and Polymers (submitted for publication in August-1996).Google Scholar
  5. 5.
    F. Denes, Z.Q. Hua, E. Barrios, J. Evans, and R.A. Young, J.M.S.-Pure Appl.Chem., A32, (8 & 9), 1405 (1995).Google Scholar
  6. 6.
    R.A. Young, X. Tu, and F. Denes, Cellulose, 1, 87 (1994).CrossRefGoogle Scholar
  7. 7.
    F. Denes and R.A. Young, Cold Plasma State-A New Approach to improve Surface Adhesion of Lignocellulosic Substrates, in Proceedings of Wood Adhesives-1995, Sponsored by: USDA Forest Service, forest Products Laboratory, and The Forest Products Society, Eds. A.W. Christiansen and A.H. Conner, Forest Products Society-Proceedings No. 7296, p. 61-74 (1996).Google Scholar
  8. 8.
    L.D. Nielsen, PhD Thesis: A Comparative Study of Plasma-Induced Polymerization and Plasma-State Polymerization of Acrylonitrile for Modification of Cellophane, UW-Madison, Department of Forestry (1995).Google Scholar
  9. 9.
    Z.Q. Hua, F. Denes, and R.A. Young, J. Vac. Sci. Technol., A 14(3), 1339 (1996).CrossRefGoogle Scholar
  10. 10.
    F. Denes, Z.Q. Hua, C.E.C.A. Hop, and R.A. Young, J. Appl. Poly. Sci., 61, 875 (1996).CrossRefGoogle Scholar
  11. 11.
    F. Denes, A.R. Denes, and J.P. Kennedy, J.M.S.-Pure Appl. Chem., Polymerization of Isobutylene by RF-Plasma Generated ClxSi+ Silylium Ions (accepted-1997).Google Scholar
  12. 12.
    Z.Q. Hua, D. Holm, P. Gatenholm, R. Rowell, and F. Denes, Hydrophobization of Paper under Cyclic-Perfluorocarbons-RF-Plasma Conditions, presented t the Cellulose Paper, and Textile Division of the 213th ACS National Meeting, San Francisco, April 13-17(1997).Google Scholar
  13. 13.
    F. Denes and R.A. Young, Surface Modification of Polysaccharides under Cold Plasma Conditions, in: Structural Diversity and Functional Versatility of Polysaccharides, Editor: S. Dumitriu, Marcel Dekker (in press-1997).Google Scholar
  14. 14.
    F. Denes, L.D. Nielsen and R.A. Young, Cold Plasma State-A New Approach to Improve Surface Adhesion in Lignocellulosic-Plastic Composites, Proceedings of the First International Symposium on Composites Based on Lignocellulosics and Plastics, March 13–15, 1996, Sao Paulo-Brazil, Eds. A. L. Leao, F. X. Carvalho, and E. Frollini, UNESP, p.61(1997).Google Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • F. Denes
    • 1
  • R. A. Young
    • 1
  1. 1.Engineering Research Center for Plasma -Aided Manufacturing and Department of ForestryUniversity of Wisconsin-MadisonMadisonUSA

Personalised recommendations