Utilization of recycled fibers from MDF wastes and waste paper for manufacturing fiberboard and the effect of poly vinyl acetate on its practical properties

Document Type : Research Paper

Authors

1 University of Mohaghegh Ardabili

2 Faculty of agriculture and natural resources, university of mohaghegh ardabili

3 Ph.D graduated. University of Tehran

4 Faculty member of University of Mahaghegh Ardabili, Faculty of Agriculture and Natural Resources, Department of Wood Science and Technology

Abstract

In this study, the utilization of fibers recycled from MDF wastes and waste papers for manufacturing fiberboards was investigated. The proportion of waste paper to recycled fibers from MDF wastes was 70/30 and 50/50. Also the effect of utilization of poly vinyl acetate adhesive on properties of boards was investigated. Boards were manufactured at density of 0.3 g/cm3 and dimension of 30×30×1.2cm. Practical properties of boards including thickness swelling, bending strength, modulus of elasticity and internal bonding were measured. The results showed that the utilization of adhesive can improve all of board properties. Change in proportion of recycled fibers to waste paper had different influences on various properties of manufactured fiberboards. The proportion of 70/30 of waste paper to recycled fibers from MDF wastes led to improving bending strength and modulus of elasticity of fiberboards, while the manufactured boards from proportion of 50/50 had better results about thickness swelling and internal bonding. Overall, it can be concluded that recycled fibers from MDF wastes mixed with waste paper can successfully utilize in producing fiberboards.

Keywords


[1] Dix, B., Schafer, M., and Roffael, E., 2001. Using fibers from waste fiberboards pulped by a thermo-chemical process to produce medium density fiberboard (MDF). Holz als Roh und Werkstoff, 59(4):276-276.
[2] Michanickl, A., and Boehme, C., 2003. Method for recovering chips and fibers of bonded wood materials involves passing of steam through a vessel with such materials which have been soaked with a heated impregnation solution, Patent No. DE10144793, WO03026859.
[3] Mantanis, G., Athanassiadou, E., Nakos, P., and Coutinho, A., 2004. A new recycling process for waste panels, In: Proc. of European COST E31 Conference: “Management of recovered wood”. Ed. C. Gallis, March.21-22 Thessaloniki, Greece: 204-210.
[4] Lykidis, C.H., and Grigoriou, A., 2008. Hydrothermal recycling of waste and performance of recycled wooden particleboard. Waste management Journal, 28: 57-63.
[5] Roffael, E., 2003. MDF board from recovered OSB. Holz als Roh und Werkstoff, 61:390-391
[6] Nicewics, D., and Leszek, D., 2010. Recycling of insulation boards by reuse, Annals of Warsaw University of Life Sciences – SGGW Forestry and Wood Technology, 72: 57-61.
[7] Moezzipour, B., 2016. Investigation of the Recycled Fibers via ohmic Heating Method and the Manufactured MDF Boards, Ph.D. thesis. University of Tehran. 160pp.
[8] Roffael, E., and Huster, H.G., 2012. Complex chemical interactions on thermo hydrolytic degradation of urea formaldehyde resins (UF-resins) in recycling UF-bonded boards, European Journal of Wood and Wood Products, 70: 401-405.
[9] Doosthoseini, K., 2001. Wood composite materials; Manufacturing, Applications, Tehran University Press, ISBN 964-03-4332-3,648pp
 [10] Lubke, H., Inhat, V., and Boruvka, V., 2014. Straw pulp as a secondary lignocellulosic raw material and its impact on properties of insulating fiberboards; Part1: characteristic of straw fiber from the perspective of the mass creation. Wood Research, 59 (5): 747-757.
[11] Standard for wood based panels – Insulation fiberboard specifications and test methods, 2014, ICS: 79.060.20, INSO-7416-6, 1st Edition: 17pp.
[12] Suchsland, O., Hiziroglu, S., Sean, T., and Iyengar, G. 1998, Laboratory experiments on the use of recycled newsprint in wood composites, Forest Products Journal, 48:55–64.
[13] Qinglin, W., 2001. Investigation on the use of recycled newsprint fiber in wood based fiberboards. School of forestry wild life and fisheries, Louisiana State University.
[14] Nourbakhsh, A., Ashori, A., and Jahan-Latibari, A., 2010. Evaluation of the Physical and Mechanical Properties of Medium Density Fiberboard Made from Old Newsprint Fibers. Journal of Reinforced Plastics and Composites, 29 (1): 5-11.
[15] Krzysik, A., Youngquist, J.A., Rowell, R.M., Muehl, J.H., Chow, P., and Shook, S.R., 1993. Feasibility of Using Recycled Newspapers as a Fiber Source for Dry-Process Hardboards. Forest Product Journal, 43 (7):53–58.
[16] Grigoriou, A.H., 2003. Waste Paper–Wood Composites Bonded with Isocyanate. Wood Science and Technology, 37 (1): 79–89.
[17] Zhao, L.F., Liu. Y., Xu, Z. D., Zhang, Y.Z., Zhao, F., and Zhang, S.B., 2011. State of research trends in development of wood adhesives. Forestry Studies in China Journal, 13(4): 321-326.
[18] Hunt, J.F., Jane, O’Dell, J., and Turk, C., 2008. Fiberboard bending properties as a function of density, thickness, resin, and moisture content. Holzforschung, 62: 569-576.
[19] Rassam, G., 2008. Use of Soy/PF resin for old corrugated container (OCC)- wood composites, Materials Letters, 62: 3236-3239.
[20] Ghahri, S., 2017. Soy flour adhesive modification by tannic acid and its application in boards made from recycled old corrugated containers (OCC) and wood fibers, Ph. D thesis, Tarbiat Moddares University, 156 pp.
[21] Hwang, C.Y., Hse, C.R., and Shupe, T.F., 2005. Effects of recycled fiber on the properties of fiberboard panels. Forest Product Journal. 55(11):61-64.