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Bhatt, Shweta
- Amelioration of Phenol Formaldehyde Adhesive With Silicic Acid for Application in Plywood
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1 Forest Products Division, Forest Research Institute Dehradun, IN
1 Forest Products Division, Forest Research Institute Dehradun, IN
Source
Indian Forester, Vol 141, No 4 (2015), Pagination: 397-402Abstract
Phenol formaldehyde adhesive is used in laminated as well as composite panels due to its good adhesion, high polymeric strength and excellent stability. The purpose of present study was to prepare plywood of good shear strength using silicic acid (2,3 and 4%) in phenol formaldehyde adhesive. The effect of silicic acid on plywood was evaluated by testing glue shear strength (GSS) of plywood in dry and wet conditions. The mycological test was also conducted in plywood to test its efficacy against white rot fungus (Trametes versicolor). Results revealed that shear strength of plywood was increased by adding silicic acid (2 and 3%) in adhesive, whereas by increasing the concentration of silicic acid (4%) the glue shear strength was reduced but still met the requirement of shear strength as per IS: 848. It was found that glue failure percentagewas also reduced after adding silicic acid in PF adhesive.Keywords
Glue Shear Strength, Phenol Formaldehyde Adhesive, Pressing Time, Silicic Acid, Trametes versicolor.- Study on the Suitability of Lantana camara and Dendrocalamus strictus for the Manufacturing of Cement Bonded Particle Board
Abstract Views :158 |
PDF Views:0
Authors
Affiliations
1 Forest Products Division, Forest Research Institute, Dehradun (Uttarakhand), IN
1 Forest Products Division, Forest Research Institute, Dehradun (Uttarakhand), IN
Source
International Journal of Forestry and Crop Improvement, Vol 8, No 2 (2017), Pagination: 141-144Abstract
Cement bonded wood composites have unique features due to their acceptability among industries. However the compatibility of cement with the wood species is always a major concern due to presence of wood extractive, which might have inhibitory effect on the bonding properties. In the proposed work cement particle boards were prepared using Lantana camara and Bamboo spp. (Dendrocalamus strictus) at three different ratios i.e. 2:1, 2.5:1 and 3:1. The soluble sugar and tannin content present in these species was estimated and their effect on the MOR of cement-lantana bonded boards and cement-bamboo bondedboards was studied. The modulus of rupture was less in case of bamboo boards with high soluble sugar content. Lantana boards performed better strength wise than bamboo boards.Keywords
Cement Bonded Particle Boards, MOR, Tannin, Soluble Sugar.References
- Alhedy, Atef M.A., Algadir, Y.A., and Mohamoud, A.E. (2006). Effect of pretreatment and pressure on properties of cement-bonded products from Oxytenanthera abyssinica. Proceeding of NRC.
- Chew, L.T., Rahim, S. and Jamaludin, K. (1992). Bambusa valgaris for urea and cement bonded particle board manufacture. J. Tropical Forest Sci., 4 (3) : 249-256.
- Dogra, K.S., Kohli, R.K. and Sood, S.K. (2009). An assessment and impact of three invasive species in the Shivalik hills of Himachal Pradesh, India. Internat. J. Biodiversity & Conservation, 1(1) : 4-10.
- Hachemi, M. and Moslemi, A.A. (1989). Correlation between wood cement compatibility and wood extractives. Forest Product J., 39 (6) : 55-58.
- Kannan, R., Aravind, N.A., Joseph, G., Ganeshaiah, K.N. and Shaanker, R.U. (2008). Lantana craft: A weed for a need. Biotech. News, 3 (2) : 9-11.
- Kohli, R.K., Batish, D.R., Singh, H.P. and Dogra, K.S. (2006). Status, invasiveness and environmental threats of three tropical American invasive weeds (Parthenium hysterophorus L., Ageratum conyzoides L., Lantana camara L.) in India. Biological Invasion, 8 : 1501-1510.
- Lee, A.W.C. (1984). Physical and mechanical properties of cement bonded southern pine excelsior board. Forest Prod. J., 34 (4) : 30-34.
- Liu, Z. and Moslemi, A.A. (1986). Effect of western Larch extractives on cement-wood setting. Forest Product J., 35 (7/8) : 37-43.
- Miller, D.P. (1987). Wood-cement composite: interactions of wood components with Portland cement Ph.D. Dissertation, University of Idaho, and Moscow, Idaho, USA.
- Pehanich, J.L., Blankenhorn, P.R. and Silsbee, M.R. (2004). Wood fiber surface treatment level effects on selected mechanical properties of wood fiber-cement composites. Cement & Concrete Res., 34 : 59.
- Schanderi, S.H. (1970). Methods in food analysis. Academic Press, New York. pp. 709.
- Schubert, B., Wienhaus, O. and Blobfeld, O. (1990). Untersuchungenzum System Holz-Zement. Einflußunterschiedlicher Zementarten auf das Abbindeverhalten von Holz-Zement-Mischungen. Holz Roh Werkst., 48 (5) : 185-189 (In German).
- Sharma, S. and Varshney, V.K. (2012). Chemical analysis of Agave sisalana juice for its possible utilization. Actachim Pharm. Indica, 2 (1) : 60-66.
- Shukla, K.S., Agrawal, S.C. and Kumar, S. (1982). Studies on the suitability of toon and mango for the manufacture of wood-wool board. J. Timber Development Association, (India), 30 (3) : 16-23.
- Wei, Y.M., Tomita, B., Hiramatsu, Y., Miyatake, A., Fujii, T., Fujii, T. and Yoshinaga, S. (2003). Hydration behaviour and compressive strength of cement mixed with exploded wood fibre strand obtained by the water-vapour explosion process. J. Wood Sci., 49 : 317-326.