Strength and glue bond degradations of MDF and particleboard after being exposed to different environmental condition

Syed Saiful Azry, . and Paridah Md Tahir, . and Zaidon Ashaari, . and Mohamad Jani Saad, . (2006) Strength and glue bond degradations of MDF and particleboard after being exposed to different environmental condition. [Proceedings Paper]

The degradation of fibre-based products cannot be stopped but can only be delayed by adding additives. The strength properties of both Medium Density FibreboardMDF and particle board will decrease parallel to the time and duration of usage due to the degradation in glue bonding. The objective of this study was to estimate the degradation of strength properties of MDF and Particleboard after being condition in an air-conditioned room and at ambient. The duration of the conditioning was three months. These studies compared different board variables exposure condition board thickness resin type board type that affect the degradation of board strength. This study also examined the effect of cold water soaking 12 24 and 72 hours on the strength of boards. The static bending and internal bond test were used to assess the strength properties of both panel types. The MDF and Particleboard in accordance to JIS A 5908-1994. The Modulus of Elasticity MOE Modulus of Rupture MOR and Internal Bond IB were determined after 0-3 months whereas for soaked specimens after 12 24 and 72 hours. The results showed that all the variables studied exposure condition board thickeness resin types and board types had great significant influence on the degradation of the boards strength peoperties. Among the variables studied board types and conditioning method seems to have more dominant effect compare to resin type. Conditioning the MDF and particleboard in air-conditioned room is much better than at ambient in term of MOE MOR and IB. The thickness of the board greatly affects the strength retention of the board when exposed either in an air-conditioned at ambient or soaked in cold water. This shows that the higher board thickness the greater the degradation occurred.

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Abstract

The degradation of fibre-based products cannot be stopped but can only be delayed by adding additives. The strength properties of both Medium Density FibreboardMDF and particle board will decrease parallel to the time and duration of usage due to the degradation in glue bonding. The objective of this study was to estimate the degradation of strength properties of MDF and Particleboard after being condition in an air-conditioned room and at ambient. The duration of the conditioning was three months. These studies compared different board variables exposure condition board thickness resin type board type that affect the degradation of board strength. This study also examined the effect of cold water soaking 12 24 and 72 hours on the strength of boards. The static bending and internal bond test were used to assess the strength properties of both panel types. The MDF and Particleboard in accordance to JIS A 5908-1994. The Modulus of Elasticity MOE Modulus of Rupture MOR and Internal Bond IB were determined after 0-3 months whereas for soaked specimens after 12 24 and 72 hours. The results showed that all the variables studied exposure condition board thickeness resin types and board types had great significant influence on the degradation of the boards strength peoperties. Among the variables studied board types and conditioning method seems to have more dominant effect compare to resin type. Conditioning the MDF and particleboard in air-conditioned room is much better than at ambient in term of MOE MOR and IB. The thickness of the board greatly affects the strength retention of the board when exposed either in an air-conditioned at ambient or soaked in cold water. This shows that the higher board thickness the greater the degradation occurred.

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Item Type:	Proceedings Paper
Additional Information:	4 ills 10 tables. 8 refs.
AGROVOC Term:	ADHESIVES
AGROVOC Term:	DEGRADATION
AGROVOC Term:	PARTICLE BOARDS
AGROVOC Term:	ENVIRONMENTAL FACTORS
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/10842

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