Modification of Urea Formaldehyde Resin with Pyrolytic Oil on Particleboard
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Urea formaldehyde resins are widely used in the manufacturing of wood composite and their usage is always combined with release of formaldehyde characterized to be hazardous to health during and after the manufacturing of the products. This study investigates the effectiveness of wood-based adhesive from oil of pyrolysed Triplochiton scleroxylon sawdust for the production of composite board. The wood-derived Pyrolytic Oil (PyO) was blended with Urea Formaldehyde (UF) resin to formed Pyrolytic Oil-Urea Formaldehyde (PyOUF). The obtained PyOUF called Wood-Based Adhesives at four blends and control (UF) viz; 1:1, 1:2, 1:3, 2:1, 1:3 were further employed to prepare the composite board and test for their bonding strength by physical (water absorption-WA and thickness swelling-Th.S) and mechanical properties (modulus of elasticity-MOE, modulus of rupture-MOR, and impact bending-IB). Data obtained was analysed using analysis of variance at α 0.05. The result of analysis of variance conducted on physical properties show significant difference (p≤0.05) between the WA values obtained when testing the different blending proportion of PyOUF and likewise between 2 and 24 h of immersion. PyOUF had significant effect (p≤0.05) on Th. S for 24 h but no significant different (p＞0.05) for the 2 h period of soaking. The analysis of variance on mechanical properties of the composite board (MOE, MOR, and IB) show significance differences (p≤0.05) between the strength values obtained when testing the different ratios of PyO with UF. PyO content influenced the properties of the boards and it is evident that PyO can be used in the manufacture of composite board.
Abstract
Urea formaldehyde resins are widely used in the manufacturing of wood composite and their usage is always combined with release of formaldehyde characterized to be hazardous to health during and after the manufacturing of the products. This study investigates the effectiveness of wood-based adhesive from oil of pyrolysed Triplochiton scleroxylon sawdust for the production of composite board. The wood-derived Pyrolytic Oil (PyO) was blended with Urea Formaldehyde (UF) resin to formed Pyrolytic Oil-Urea Formaldehyde (PyOUF). The obtained PyOUF called Wood-Based Adhesives at four blends and control (UF) viz; 1:1, 1:2, 1:3, 2:1, 1:3 were further employed to prepare the composite board and test for their bonding strength by physical (water absorption-WA and thickness swelling-Th.S) and mechanical properties (modulus of elasticity-MOE, modulus of rupture-MOR, and impact bending-IB). Data obtained was analysed using analysis of variance at α 0.05. The result of analysis of variance conducted on physical properties show significant difference (p≤0.05) between the WA values obtained when testing the different blending proportion of PyOUF and likewise between 2 and 24 h of immersion. PyOUF had significant effect (p≤0.05) on Th. S for 24 h but no significant different (p＞0.05) for the 2 h period of soaking. The analysis of variance on mechanical properties of the composite board (MOE, MOR, and IB) show significance differences (p≤0.05) between the strength values obtained when testing the different ratios of PyO with UF. PyO content influenced the properties of the boards and it is evident that PyO can be used in the manufacture of composite board.
참고문헌 (17)
- Adegoke O, "Preparation and Characterization of Wood-Based Adhesive from Oil of Pyrolysed Lignocelluloses Waste", Pro Ligno, 15, pp.17~24 (2019)
- Adegoke OA, "Chemical characterization of pyrolytic oil obtained from lignocellulosic waste", XIV World Forestry Congress (2015)
- Adegoke OA, "Combustion Properties of Some Tropical Wood Species and Their Pyrolytic Products Characterization", Energy Power, 4, pp.54~57 (2014)
- Antonović A, "Carbamide-formaldehyde adhesive systems modified with liquefied wood, Part I. Acid catalyst method of wood liquefaction with various polyhydric alcohols", International Conference Technologies of Wood Processing (2006), Technical University in Zvolen, Faculty of Wood Science and Technology
- Bhagat S, "Effect of Graphite Filler on Mechanical Behavior of Epoxy Composites", Int J Emerg Technol Adv Eng, 3, pp.427~430 (2013)
- British Standards Institution, "Particleboards and fibreboards. Determination of swelling in thickness after immersion in water", BS EN 317, 12~ (1993)
- British Standards Institution, "Wood-based panels. Determination of modulus of elasticity in bending and of bending strength", BS EN 310, 14~ (1993)
- Fiorelli J, "Particulate composite based on coconut fiber and castor oil polyurethane adhesive : an eco-efficient product", Ind Crops Prod, 40, pp.69~75 (2012)
- Fuwape JA, "Fourier Transform-Infrared Analysis of Pyrolysis Oil from Selected Wood Residues", For For Prod J, 4, pp.16~20 (2011)
- Gonçalves CA, "Particleboard made with resin urea-formaldehyde modified with tannin from Mimosa caesalpiniaefolia Bentham", FLORAM, 10, pp.18~26 (2003)
- Goyal HB, "Bio-Fuels from Thermochemical Conversion of Renewable Resources : A Review", Renew Sust Energ Rev, 12, pp.504~517 (2008)
- "IARC Classifies Formaldehyde as Carcinogenic to Humans" (2004)[URL]
- Kasir WA, "Improving the properties of particleboard bonded by fortified eucalyptus bark extract with urea-formaldehyde", Iraqi J For Agric Sci, 5, pp.69~76 (2004)
- Nemli G, "Influence of impregnating wood particles with mimosa bark extract on some properties of particleboard", Ind Crops Prod, 20, pp.339~344 (2004)
- Sarojini Swain, "Synthesis and Characterization of Graphene Based Unsaturated Polyester Resin Composites", Transactions on Electrical and Electronic Materials, 14(2), pp.53~58 (2013), 한국전기전자재료학회[DOI]
- Zhang Q, "Effects of inorganic acid catalysts on liquefaction of wood in phenol", Front For China, 1, pp.214~ (2006)
- Zhang W, "Lignocellulosic ethanol residues-based lignin-formaldehyde resin", Int J Adhes Adhes, 40, pp.11~18 (2013)