Improving the Dimensional Stability of Spruce and Birch Boards by Heat-Treatment at 190 and 210℃

• 발행기관: 한국가구학회
• 저자명: Ho-Yang Kang
• 간행물 정보: 『한국가구학회지』제20권 제6호, 560~565쪽, 전체 6쪽
• 주제분류: 예술체육 > 미술
• 파일형태: PDF
• 발행일자: 2009.12.30

영문 초록

It is known that heat treatment decreases the hygroscopicity of wood. Thus heat-treated wood is good for outdoor construction due to its improved dimensional stability. This study is to investigate the hygroscopicity and discoloration of spruce and birch boards heat-treated above 190℃. The equilibrium moisture contents (EMCs) at all relative humidities decreased with the increase of heat treatment temperature and/or time for both spruce and birch. It was revealed that heat-treatment temperature affected more on the hygroscopicity thaan heat-treatment time. The average basic densities decreased for the spruce specimens, but increased for the birch specimens with an increase of the treatment time and/or temperature. The same heat treatment condition (190-8) made the birch specimens darker than the spruce specimens.

목차

Ⅰ. INTRODUCTION

Ⅱ. MATERIAL AND METHODS

Ⅲ. RESULTS and DISCUSSION

Ⅳ. CONCLUSIONS

REFERENCES

키워드

Heat treatment Picea spp. Betula platyphylla Var. japonica Sorption isotherm Colorimetry