Liquid ammonia treatment known as the most effective Wood plasticization method, was applied to two typical domestic species, Pinus densiflora, Castanea crenata. Small specimens of 30mm width, 300mm length and two thicknesses, 5 or l0mm, were used. For 5mm thick Specimens, Pinus densiflora was quite well plasticized after 4 hour liquid ammonia treatment, while Castanea crenata was not plasticized even after 24 hour treatment. Specimens of l0mm thick Pinus densiflora were hardly plasticized, but those with kerfs were bent somewhat easily. With the increase of liquid ammonia treatment time the thermal conductivity of Pinus densiflora increased, while that of Castanea crenata didn t. Presteaming before liquid ammonia treatment didn t improve the plasticization of both species.
1. 서론
2. 재료 및 방법
3. 결과 및 고찰
4. 결론
참고문헌