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Information Journal Paper

Title

Comparing lignin derived from black liquors of alkaline sulfite-AQ, soda-AQ and kraft processes as a filler-extender in the poplar plywood

Pages

  349-358

Abstract

 According to the importance of urea formaldehyde resin in plywood industry and to replace a suitable filler for this resin with wheat flour (common filler), lignin derived from three black liquors including alkaline sulfite-AQ, soda-AQ and Kraft was evaluated as filler-extender for urea formaldehyde resin in the plywood manufacture. For this reason any of the four types of lignins were used at 0, 10, 20 and 30% dry weight of resin. After that, the physical and mechanical properties of samples including thickness swelling after 2 and 24 hours immersion in water, flexural strength and modulus of elasticity parallel and perpendicular to the surface layer and shear strength were measured. The results of this study showed that increasing the lignin of alkali sulfiteanthraquinone and then Kraft lignin, respectively increased the flexural strength and modulus of elasticity parallel to the surface layer. Also, the bonding shear strength of the samples using three types of lignins increased. On the other hand, the use of these three types of lignin, improved the dimensional stability of the boards. The results show the superiority of lignin from alkaline sulfite anthraquinone process compared to other lignins to improve the mechanical properties of plywood.

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    APA: Copy

    HEDJAZI, S., Hajpour, H., ABDULKHANI, A., HAMZEH, Y., & JAMALIRAD, L.. (2018). Comparing lignin derived from black liquors of alkaline sulfite-AQ, soda-AQ and kraft processes as a filler-extender in the poplar plywood. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, 9(3 ), 349-358. SID. https://sid.ir/paper/184254/en

    Vancouver: Copy

    HEDJAZI S., Hajpour H., ABDULKHANI A., HAMZEH Y., JAMALIRAD L.. Comparing lignin derived from black liquors of alkaline sulfite-AQ, soda-AQ and kraft processes as a filler-extender in the poplar plywood. IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES[Internet]. 2018;9(3 ):349-358. Available from: https://sid.ir/paper/184254/en

    IEEE: Copy

    S. HEDJAZI, H. Hajpour, A. ABDULKHANI, Y. HAMZEH, and L. JAMALIRAD, “Comparing lignin derived from black liquors of alkaline sulfite-AQ, soda-AQ and kraft processes as a filler-extender in the poplar plywood,” IRANIAN JOURNAL OF WOOD AND PAPER INDUSTRIES, vol. 9, no. 3 , pp. 349–358, 2018, [Online]. Available: https://sid.ir/paper/184254/en

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