新聞古紙를 利用한 종이

Studies on the manufacture of paper-particleboards using recycled old newspapers

This study was conducted in th ε chain of integrated researches which were designed to develop ε substitute material for wood particles in order to solvea shortage of raw materials that our particleboard industry faces. The prime objective of this study was to investigate the feasibility of using old newspapers as a partial substitution of wood particles. Three types of paper-particleboards, having theratios of paper to wood particles of 100 to 0, 70 to 30, and 50 to 50 were produced using commercial urea - formaldehyde resin, and then their properties were evaluated. An improvement of the properties of paper-particleboards eere tried by manufacturing Comply using paper-particleboard as a core material. The results indicated that the manufacture of paper-particleboards was possible in the laboratory scale, and the properties of paper-particleboards were degraded as the amount of paper particles substituted increased. Results also showed that paper-particleboards which comes up to the requirements of the type 150 particleboard specified by Korean Standard could be produced when up to 30 Percent of paper paticles was substituted with wood particles, even though the properties of paper-particleboards were inferior to those of wood particle board. Therefore, it could be concluded that this type of paper-particleboards might be used as furniture parts which are not required to carry heavy loads. Overlaying thin veneers on th ε surfaces of paper-particleboard improved the properties of paper- particleboards considerably, even beyond the properties of wood particleboards.