DENSIFICATION OF PAULLOWNIA WOOD BY USING OF HOT-PRESS

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EDALAT H.R.; TABARSA T.; RAEISI M.

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Journal: Iranian Journal of Wood and Paper Science Research Year:2008 | Volume:23 | Issue:2 (29) Page(s): 136-148

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Title

DENSIFICATION OF PAULLOWNIA WOOD BY USING OF HOT-PRESS

Author(s)

EDALAT H.R. | TABARSA T. | RAEISI M. | Issue Writer Certificate

Keywords

DENSIFICATIONQ1

PAULLOWNIAQ2

THERMAL TREATMENTQ2

MECHANICAL STRENGTHQ3

SPRING BACKQ3

COMPRESSION SETQ3

Abstract

For this study 10 logs of Paullowina urtunie from Shastkalateh forest of Gorgan in Iran were selected randomly. After that, 45 clear flat swan specimens prepared and dried to 5% moisture. Density of each log and thickness of specimens were measured. Three levels of compression percent (16%, 33% and 50%) and temperature (130oC, 145oC and 160oC) were the variables. The physical properties of specimens such as SPRING BACK, COMPRESSION SET and thickness swelling were calculated. Also, MOE, MOR and impact resistance of specimens were evaluated. In order to have accurate examination, microscopic images were taken. Results show that, with increasing in compression percent, the amounts of SPRING BACK and thickness swelling enhance. DENSIFICATION with 16% compression, yields deformation in elastic region while 33% and 50% compression, causes more COMPRESSION SET. The more compression percent, the more MECHANICAL STRENGTHs and the highest strength attained in 50% compression. The effect of temperature was insignificant mostly. Finally, the proper treatment for PAULLOWNIA DENSIFICATION was 130oC and 50% compression. Microscopic images asserted the above results and illustrated that, the enhancing of DENSIFICATION above 50% compression is possible.

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APA: Copy

EDALAT, H.R., TABARSA, T., & RAEISI, M.. (2008). DENSIFICATION OF PAULLOWNIA WOOD BY USING OF HOT-PRESS. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, 23(2 (29)), 136-148. SID. https://sid.ir/paper/109747/en

Vancouver: Copy

EDALAT H.R., TABARSA T., RAEISI M.. DENSIFICATION OF PAULLOWNIA WOOD BY USING OF HOT-PRESS. IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH[Internet]. 2008;23(2 (29)):136-148. Available from: https://sid.ir/paper/109747/en

IEEE: Copy

H.R. EDALAT, T. TABARSA, and M. RAEISI, “DENSIFICATION OF PAULLOWNIA WOOD BY USING OF HOT-PRESS,” IRANIAN JOURNAL OF WOOD AND PAPER SCIENCE RESEARCH, vol. 23, no. 2 (29), pp. 136–148, 2008, [Online]. Available: https://sid.ir/paper/109747/en

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