Journal of the Korea Furniture Society (한국가구학회지)

Korea Furniture Society (한국가구학회)
권호 표지

Effects of the Methods of Polyethylene Glycol Impregnation and Drying on the Volumetric Shrinkage of Wood

Polyethylene Glycol 주입방법과 건조방법이 목재 부피수축률에 미치는 효과

  • Lee, Won-Hee (Department of Wood Science and Technology, Kyungpook National University) ;
  • Kang, Chun-Won (Department of Housing Environmental Design, Chonbuk National University) ;
  • Hong, Seung-Hyun (Department of Bio-based Materials, Chungnam National University) ;
  • Kang, Ho-Yang (Department of Bio-based Materials, Chungnam National University)
  • Received : 2015.12.11
  • Accepted : 2016.01.20
  • Published : 2016.01.25
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Abstract

PEG (Polyethylene glycol) impregnation in wood reduces the occurrence of checking during kiln drying. The volumetric shrinkages of wood PEG impregnated by pressure (PEG-P) or soaking (PEG-S) methods, and oven-dried by vent (VD) or air-tight (AD) methods were measured and compared with the controls. The average oven-dry weight of PEG impregnated specimens was larger than that of the controls by 3.6 g, but was not influenced by the drying methods. The average of the total volumetric shrinkage of PEG-P-VD specimens was the least (2.3%), while that of CON-S-AD specimens was the largest (28.9%). Within a drying method the total volumetric shrinkage of the control was the largest followed by PEG-S and PEG-P specimens, which implied that residual PEG in wood restrained its shrinkage during drying.

Keywords

References

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