Medium density fiberboard MDF from oil palm empty fruit bunch OPEFB and rubberwood: the effect of storage time and different relative humidity on mechanical and physical properties

M.Y. Nur Firdaus, . and H.P.S. Abdul Khalil, . and M. Anis, . (2006) Medium density fiberboard MDF from oil palm empty fruit bunch OPEFB and rubberwood: the effect of storage time and different relative humidity on mechanical and physical properties. [Proceedings Paper]

Commercial medium density fiberboard MDF was produced using rubberwood and oil palm empty fruit bunch OPEFB based on oven dried weight. The board was stored at 3 different relative humidity RH with fixed temperature at 20c. The relative humidity used were 93 65 and ambient condition as a control element average temperature: 23c-33c and average RH: 64-80. The effect of storage time and relative humidity on MDF was assessed by measuring the changes of the board properties for one month at one week interval. The mechanical and physical test was analyzed to determine basic studies of the effect of this parameter toward the MDF properties. The mechanical properties involved were the internal bonding IB and flexural test. While the physical test were thickness swelling TS water absorption WA and moisture content MC. The result showed that a slight reduction in IB strength and flexural strength of the panel with increasing time storage. Possible mechanisms behind this reduction are discussed. The value of TS WA and MC increases by increasing storage time. The storage of board at 65 RH was showed to have lower effect on the dimensional stability of the panel. Storage of panel at 93 RH exhibited a decreased in the dimensional stability of board with the increased of TS and WA.

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Abstract

Commercial medium density fiberboard MDF was produced using rubberwood and oil palm empty fruit bunch OPEFB based on oven dried weight. The board was stored at 3 different relative humidity RH with fixed temperature at 20c. The relative humidity used were 93 65 and ambient condition as a control element average temperature: 23c-33c and average RH: 64-80. The effect of storage time and relative humidity on MDF was assessed by measuring the changes of the board properties for one month at one week interval. The mechanical and physical test was analyzed to determine basic studies of the effect of this parameter toward the MDF properties. The mechanical properties involved were the internal bonding IB and flexural test. While the physical test were thickness swelling TS water absorption WA and moisture content MC. The result showed that a slight reduction in IB strength and flexural strength of the panel with increasing time storage. Possible mechanisms behind this reduction are discussed. The value of TS WA and MC increases by increasing storage time. The storage of board at 65 RH was showed to have lower effect on the dimensional stability of the panel. Storage of panel at 93 RH exhibited a decreased in the dimensional stability of board with the increased of TS and WA.

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Item Type:	Proceedings Paper
Additional Information:	10 ills. 12 refs.
AGROVOC Term:	DENSITY
AGROVOC Term:	FIBREBOARDS
AGROVOC Term:	RUBBER
AGROVOC Term:	WOOD
AGROVOC Term:	RELATIVE HUMIDITY
AGROVOC Term:	MALAYSIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:13
URI:	http://webagris.upm.edu.my/id/eprint/10847

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