Assessment of the poplar plywood produced using lignin-glyoxal adhessive

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Topa Esfandiari M.R.; TALAEIPOUR M.; KHADEMIESLAM H.; MIRSHOKRAEE S.A.; BAZYAR B.

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Journal Paper

Paper Information

Journal: Iranian Journal of Wood and Paper Science Research Year:2020 | Volume:35 | Issue:2 (71) Page(s): 127-137

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Title

Assessment of the poplar plywood produced using lignin-glyoxal adhessive

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Keywords

Urea-formaldehydeQ1

lignin-glyoxalQ2

adhesiveQ1

thickness swellingQ1

Abstract

This study uses the environment friendly nature based lignin-glyoxal adhesive to replace chemical resins for the production of plywood., pure Lignin (L. 100%), lignin-glyoxal 15% (L. 85-G. 15), lignin-glyoxal 30% (L. 70-G. 30) and Urea-formaldehyde (control) were used as adhesive. Resin dosage was selected at 160 gr/m2. Ammonium chloride (1%) as the hardener and wheat flour (30%) as the filler based on the dry weight of the adhesive was used for urea formaldehyde. The characteristics of adhesives including solid content, viscosity, specific grsvity and PH were measured. After producing the laboratory boards, the physical and mechanical properties of samples, such as thickness swelling after 2 and 24 hours soaking hot in water, shear strength, modulus of rupture, and modulus of elasticity were measured. In addition, chemical groups and bonds in pure lignin and lignin-gloxal adhesives were identified using Fourier Transform Infrared (FTIR) spectroscopy. The results indicated that the independent effect of adhesive type on the thickness swelling of plywood after 2 and 24 hours was significant. Although the results suggest that modifying the lignin will improve the plywood properties in all cases, the control boards had better characteristics than those made with the lignin-glyoxal adhesive.

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APA: Copy

Topa Esfandiari, M.R., TALAEIPOUR, M., KHADEMIESLAM, H., MIRSHOKRAEE, S.A., & BAZYAR, B.. (2020). Assessment of the poplar plywood produced using lignin-glyoxal adhessive. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 35(2 (71) ), 127-137. SID. https://sid.ir/paper/393158/en

Vancouver: Copy

Topa Esfandiari M.R., TALAEIPOUR M., KHADEMIESLAM H., MIRSHOKRAEE S.A., BAZYAR B.. Assessment of the poplar plywood produced using lignin-glyoxal adhessive. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2020;35(2 (71) ):127-137. Available from: https://sid.ir/paper/393158/en

IEEE: Copy

M.R. Topa Esfandiari, M. TALAEIPOUR, H. KHADEMIESLAM, S.A. MIRSHOKRAEE, and B. BAZYAR, “Assessment of the poplar plywood produced using lignin-glyoxal adhessive,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 35, no. 2 (71) , pp. 127–137, 2020, [Online]. Available: https://sid.ir/paper/393158/en

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