코팅紙와 新聞廢紙를 活用한 木質複合材 製造에 關한 硏究

Studies on manufacturing of wood composites from coating paper and old newspaper: I . Mechanical properties of wood composites from coating paper and old newspaper

Paper has been one of the most widely used packing and newsprinting materials, which means that significant amounts of wastepaper are produced. Mixed papers produced potentionlly be used as raw materials for convientional wood-baced panel products without resorting to the deinking and decontamination require for paper manufacturing. Preliminary research on this concept was executed to the mechanical properties of composite panels made from 50:50 mixtures of wastepaper(coating paper or old newspaper) and wood flakes, wastepaper and wood particles, or wastepaper and wood fibers. Wood composite panels applied to PMDI resin with 50% coating paper formulation had higher MOR and MOE values, where as those UP resin with 50% old nwwspaper formulation had higher MOR and MOE values. The refure, there sin which must be appli ed depends on the kind of wastepaper used. In general, wood-wastepaper composite panels have acceptable bending properties(MOR and MOE) as compared to control boards, but have low internal bond strength.