Page 29 - 201902 SCA February 2019 Volume 56 Number 1
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FEBRUARY
                                                                                                          2019


          performance in isopropyl alcohol than in butyl carbitol.   4.  EVANS, P. D., A. F. A. WALLIS and N. L. OWEN. Weathering
          In other words, the higher solubility parameter of the   of chemically modified wood surfaces [J]. Wood Science
          solvents can offer the better protection.         and Technology, 2000, 34(2): 151-165.
                                                          5.  Heitner, C. Light-induced yellowing of wood-containing
          Due to higher lignin content in softwoods (25–35%)   papers. In” Photochemistry of Lignocellulosic Materials “
          to hardwoods (18–25%), theoretically, Eversorb®   (C. Heitner and J.C. Scaiano Ed.) [A]. American Chemical
          SB pre-treatment could offer better protection to   Society. Washington D.C. 1993, pp.2-22.
          softwoods. Our data indicates that pre-treatment   6.  SCHMIDT, J.A.; HEITNER, C. “Light-Induced Yellowing of
                                                            Mechanical and Ultra-High Yield Pulps. Part3. Comparison
          with Eversorb® SB provides much significant       of Softwood TMP, Softwood CTMP, and Aspen CTMP.” [J]
          protection in softwoods (Southern Pine and Douglas   Journal of Wood Chemistry and Technology, 1995, 15(2):
          fir) comparing with hardwoods (Cedar, Southern    223-245.
          beech and African Teak).                        7.  Heitner, C. Light-induced yellowing of wood-containing
                                                            papers. In” Photochemistry of Lignocellulosic Materials “
          Coating manufacturers may still need to run       (C. Heitner and J.C. Scaiano Ed.) [A]. American Chemical
          experiments to confirm its coating systems        Society. Washington D.C. 1993, pp.2-22.
          compatibility. Also, a tailor made UV absorber and   8.  SCHMIDT, J.A.; HEITNER, C. “Light-Induced Yellowing of
          light stabilizer package can be offered to fulfill your   Mechanical and Ultra-High Yield Pulps. Part3. Comparison
                                                            of Softwood TMP, Softwood CTMP, and Aspen CTMP.” [J]
          special needs. Email: gigi@ecic.com.tw n          Journal of WoodChemistry and Technology, 1995, 15(2):
                                                            223-245.
          REFERENCES                                      9.  Yung-Chi Yang, Shih-Chen Huang, Chih-Hsien Chein, Dr.
          1.  YAO-HSING HUANG, YUNG-CHI YANG. Light stabilizers   Yao-Hsing Huang. Light stabilisers for woodpre-treatment
            for clear coatings [J]. Polymers Paint Colour Journal, 2010,   applications[J]. Polymers Paint Colour Journal, 2011,
            2000(4544):38.                                  201(4565):21-22
          2.  EVANS, P. D., A. F. A. WALLIS and N. L. OWEN. Weathering   10. Himmel, M. E., J. O. Baker, and R. P. Overend(1994).
            of chemically modified wood surfaces [J]. Wood Science   “Enzymatic Conversion of Biomass for Fuels Production”,
            and Technology, 2000, 34(2): 151-165            ed. By M.J. Comstock, American Chemical Society,
          3.  CHANG, S. T., D. N. S. HON and W. C. Feist.   Washington, DC.
            Photodegradation and photoprotection of wood surface [J].
            Wood and Fiber Science, 1982, 14(2): 104-117.
                                                          This article was previously published in
                                                          PCI Magazine, September 2018.


















































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