Stiffness changes in MDF kitchen cabinet after accelerated aging test

Document Type : Research Paper

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Abstract

Board-made square/rectangular shapes are considered as the basic structures in case goods
production such as closet or kitchen cabinet. In this experiment real size square shape kitchen
cabinet have been manufactured using screw and two types of board, bare MDF without edge
band and melamine overlaid MDF with edge band, both were exposed to accelerated aging
test. Totally 50 boxes have been constructed and tested. 25 boxes manufactured with bare
MDF and without edge band and 25 boxes (which were exactly similar) with melamine
overlaid MDF with edge band. Total of five treatments (including control samples) which
were only different in aging time, have been implemented on cabinets. Then the stiffness of
these kitchen cabinets has been evaluated. Results of statistical analysis showed that the
effect of treatments on the stiffness of melamine overlaid MDF cabinets with edge band is
significant at 1% level (confidence level of 99%). Comparison of T1 (control) and T5
(harshest) treatment showed that in both board types structure nearly 10% decrease in cabinet
stiffness happened. The same rate of reduction after the harshest aging in stiffness of both
types of cabinets compared to their control samples was observed. Nevertheless cabinets
manufactured with melamine overlaid MDF with edge band have demonstrated more than
three times the stiffness of the cabinets manufactured of bare MDF without edge band. This
proves that the effect of overlaid and edge band in increasing stiffness of cabinets is very
outstanding.

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References

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Iranian Journal of Wood and Paper Industries
Volume 4, Issue 1 - Serial Number 1
January 2012
Pages 131-141

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