Studies on Manufacture of Hanji(Korean Paper) Sludge·Wood Particle Composite II. Mechanical Properties of Hanji(Korean Paper) Sludge·Wood Particle Composite

This research was carried out to develop the Hanji(Korean paper) sludge·wood particle composite utilizing the waste sludges occurring from the making process of Hanji(Korean paper). At the research, four mixing ratios of white or black sludge to wood particle(10:90, 20:80, 30:70 and 40:60), three types of the resin adhesives(PMDI, urea and phenol resin) and three levels of the densities(0.60, 0.75 and 0.90) were designed to investigate the mechanical properties of Hanji(Korean paper) sludge·wood particle composite. In the white and black sludge·wood particle composites, bending properties(MOR, MOE) showed the decreasing tendency according to the increase of sludge additive, but it was clearly increased with the increase of specific gravity. Also tensile strength had the same tendency as in these bending properties. The internal bond strength of white sludge·wood particle composite had no tendency, but that of black sludge·wood particle composite was decreased as an increase of Hanji sludge additive.

한지(韓紙) 슬러지·목재(木材) 파티클 복합(複合)보드의 제조연구(製造研究) II. 한지(韓紙) 슬러지·목재(木材) 파티클 복합(複合)보드의 기계적(機械的) 성질(性質)

한지제조공정(韓紙製造工程) 중(中)에서 발생(發生)하는 백색 슬러지와 흑색 슬러지를 각각 일정비율(10, 20, 30, 40%)로 목재(木材)파티클과 혼합(混合)하고 PMDI, 요소 및 페놀수지를 이용하여 목표비중(目標比重) 0.60, 0.75, 0.90 별로 복합(複合)보드를 제유(製遺)하여 기포적(機捕的) 성질(性質)을 측정한 결과 파티클보드에 한지(韓紙) 슬러지를 약 20%까지는 혼합(混合)하여 복합재(複合材)를 제조하여도 충분히 가능(可能)하리라 믿어진다.