PMI사의 Capillary flow porometer 와 Gas pycnometer를 이용하여

목재의 열처리 온도가 증가함에 따라 기체투과성이 증가하고 through pore의 함량과 크기가 증가하는 것을 보여주는 연구논문

저자 : Eun-suk Jang, Chun-won Kang

초록

In this study, changes in gas permeability and pore structure of wood are evaluated after heat treatment with temperatures ranging from 190 to 230 °C for 6 h for both hardwood (yellow poplar: Liriodendron tulipifera) and softwood (Korean red pine: Pinus densiflora). The purpose of this study is to investigate changes in pore size, content of three pore types (through pore, blind pore, and closed pore), as defined by IUPAC, and gas permeability by increasing heat treatment temperatures in hardwood and softwood using capillary flow porometry and gas pycnometry. As the heat treatment temperature increased, only through pore porosity increased, causing an increase in gas permeability.

Keywords: Heat-treated wood, Through pore, Blind pore, Closed pore, Capillary flow porometry,

Gas pycnometry, Yellow poplar, Korean red pine

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