The influence of wax-sizing on dimension stability and mechanical properties of bagasse particleboard |
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| Authors: | Xinwu Xu Fei Yao Qinglin Wu Dingguo Zhou |
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| Affiliation: | 1. College of Wood and Technology, Nanjing Forestry University, Jiangsu 210037, China;2. School of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA;1. Université de Toulouse, INP, Laboratoire de Chimie Agro-industrielle, ENSIACET, 4 Allée Emile Monso, BP 44362, 31030 Toulouse Cedex 4, France;2. INRA, Laboratoire de Chimie Agro-industrielle, 31030 Toulouse Cedex 4, France;1. Renewable Materials Program, Department of Forest, Rangeland and Fire Sciences, University of Idaho, Moscow, ID 83844-1132, United States;2. Department of Civil Engineering, University of Idaho, Moscow, ID 83844-1022, United States;1. Wood and Forestry Science Center (PPGEF), Federal University of Paraná, Lothário Meissner 900, ZIP code: 80210-170, Curitiba, Brazil;2. SENAI Institute of Innovation in Electrochemistry; Av. Comendador Franco, 1341, ZIP code: 80215-090, Curitiba, Brazil;3. NSERC Industrial Chair on Ecoresponsible Wood Construction, Wood and Forest Sciences Department, Université Laval, G1V 0A6 2325 Rue de l’Université, Québec City, Québec, Canada;4. Embrapa Forestry, National Center for Forest Research, Estrada da Ribeira, Km 111 – P.O Box: 319, ZIP code: 83411-000, Colombo, Brazil;1. Forest Products Utilization, College of Forestry, Banda University of Agriculture and Technology, Banda (BUAT), 210001 U.P., India;2. Forest Product Division, Forest Research Institute, Dehradun 248006, India;3. Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), UPM, Serdang, Selangor 43400, Malaysia;4. Lab. of Adhesion & Bio-Composites, Program in Environmental Materials Science, College of Agriculture and Life Sciences, Seoul National University, Seoul 151-921, Republic of Korea;1. University of Ljubljana, Biotechnical Faculty, Jamnikarjeva 101, SI-100 Ljubljana, Slovenia;2. Zimic Group, U., Bratov Komel 29, 1210 Ljubljna, ?entvid, Slovenia;1. Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China;2. Guangdong Provincial Key Laboratory of Fire Science and Technology, School of Intelligent Systems Engineering, Sun Yat-sen University, Guangzhou 510006, China;3. School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong 2522, Australia |
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| Abstract: | Bagasse particleboards (BPBs) were made using polymeric methylene diphenyl diisocyanate (pMDI) resin as binder and wax emulsion as dimension stabilizer. A factorial experiment was conducted to measure the effects of wax and pMDI resin content on particleboard dimension stability and mechanical properties. The data were compared with respective properties specified in the ANSI A208.1 standard for commercial M3 grade wood-based particleboard.Wax-sizing improved the linear expansion (LE) of the particleboards under both pMDI resin contents used in this research and all LE values were controlled under the critical value of 0.35%. The use of wax significantly reduced 24-h water absorption and thickness swelling compared to the control panels without wax. Wax-sizing at the moderate levels also showed positive influence on long-term water absorption and thickness swelling properties. Wax content levels, however, did not significantly influence water absorption and thickness swelling behavior. Wax-sizing had no evident negative effects on the bending properties of MDI-bonded bagasse particleboards under both resin contents, while it caused slightly negative effect on internal bond strength. Mechanical properties of all boards far exceeded the minimum values specified in ANSI A208.1 standard. The entire properties of the 5% pMDI BPBs were better than those of the 3% pMDI panels as expected. |
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