Influence of nano wollastonite on physical, mechanical and morphological properties of gypsum composites manufactured from bagasse
Keywords:Bagasse, internal bonding, density, Modulus of rupture, nano wollastonite
We investigated the effect of adding nano-wollastonite on the physical, mechanical and morphological properties of gypsum Composites. The ratio percentage of bagasse mixing as lignocellulosic material with gypsum at three levels (85:15; 75:25; 65:35) and nano-wollastonite at three levels of 0 %, 5 % and 10 %. Specimens were prepared according to the ISO 11925 specifications for the fire resistance (weight loss) properties and according to the DIN EN 634-1: 1195-04 specifications for the mechanical and physical properties. Scanning Electron Microscopy (SEM) were also used to study the properties of composite morphology and distribution of samples. The results showed that by increasing the amount of nano wollastonite, physical and mechanical properties improved. The MOR, MOE and IB of boards decreased with increased bagasse usage amount, and its maximum value was obtained in using 15 % bagasse. The results also showed that increasing the amount of bagasse in boards caused a significant increase in the TS of the boards. The results from microscopic images showed that the optimal level of nano-wollastonite can fill the empty holes and create a uniform structure, thereby improving the properties of the boards.
Deutsches Institut für Normung. DIN. 1995. DIN EN 634-1:1995-04: Cement-bonded particleboards - Specifications - Part 1: General requirements. (German version). Berlin, Germany. https://dx.doi.org/10.31030/2742430
Deng, Y.H.; Furuno, T. 2001. Properties of gypsum particleboard reinforced with polypropylene fibers. J Wood Sci 47(6): 445–450. https://doi.org/10.1007/BF00767896
Dell Inc. 2016. Dell Statistica, version 13. Data Analysis Software System; Dell Inc., Landolock, TX, USA.
Esmailpour, A.; Taghiyari, H.R.; Nouri, P.; Jahangiri, A. 2017. Fire-retarding properties of nano-wollastonite in particleboard. Fire Mater 42(6): 306–315. https://doi.org/10.1002/fam.2493
Espinoza-Herrera. R.; Cloutier. A. 2011. Physical and mechanical properties of gypsum particleboard reinforced with Portland cement. Eur J Wood Wood Prod 69(2): 247–254. https://doi.org/10.1007/s00107-010-0434-x
International Organization for Standardization. ISO. 2010. EN ISO 11925-2: Reaction to fire tests – Ignitability of building products subjected to direct impingement of flame – Part 2: Single-flame source test. ISO, Vernier, Geneva, Switzerland. https://www.iso.org/
Hassanpoor-Tichi, A.; Bazyar, B.; Khademieslam, H.; Rangavar, H.; Talaeipour, M. 2019. Is Wollastonite Capable of Improving the Properties of Wood Fiber-cement Composite? BioResources 14(3): 6168-6178. https://bioresources.cnr.ncsu.edu/resources/is-wollastonite-capable-of-improving-the-properties-of-wood-fiber-cement-composite/
Haghighi-Poshtiri, A.; Taghiyari, H.R.; Karimi, A.N. 2013. The optimum level of nano-wollastonite consumption as fire-retardant in poplar wood (Populus nigra). Int J Nano 4(2): 141-151. http://doi.org/10.7508/ijnd.2013.02.007
Karimi, A.; Haghighi-Poshtiri, A.; Taghiyari, H.R.; Hamzeh, Y.; Enayati, A.A. 2012. Effects of nano-wollastonite impregnation on fire resistance and dimensional stability of poplar wood In The International Research Group on Wood Protection, IRG/WP 12-40595. Kuala Lumpur, Malaysia. https://www.irg-wp.com//irgdocs/details.php?8a5a2b57-159f-7300-1274-55d90472351a
Khosrviyan, B. 2009. The study of mechanical, physical, thermal and morphological properties of hybrid multi- structures and nano hybrid polypropylene wood flour/ wollastonite multi- structures (In Persian). M.S. degree thesis. Department of Natural Resource, The University of Tehran, Karaj, 103p.
Li, H.; Xiao, H.; Ou, J. 2004. A study on mechanical and pressure-sensitive properties of cement mortar with nanophase materials. Cem Concr Res 34(3): 435-438. https://doi.org/10.1016/j.cemconres.2003.08.025
Ma, X.X.; Wang, C.G. 2012. Hydration characteristics of mixture of grapevine and cement, J Nanjing For Univ 36(3): 157-159. (in Chinese) http://en.cnki.com.cn/Article_en/CJFDTotal-NJLY201203035.htm
Papadopoulos, A. 2008. Natural durability and performance of hornbeam cement bonded particleboard. Maderas-Cienc Tecnol 10(2): 93-98. https://doi.org/10.4067/S0718-221X2008000200002
Rangavar, H.; Kargarfard, A.; Hoseiny-Fard, M.S. 2016. Investigation on Effect of cement types on the cement hydration and properties of wood-cement composites manufactured using sunflower stalk (Helianthus Annuus) (In Persian). Iran J Wood Paper Sci Res 31(2): 336–348. http://dx.doi.org/10.22092/ijwpr.2016.105933
Taghiyari, H.R.; Mobini, K.; Sarvari- Samadi, Y.; Doosti, Z.; Karimi, F.; Asghari, M.; Jahangiri, A.; Nouri, P. 2013. Effects of nano-wollastonite on thermal conductivity coefficient of medium-density fiberboard. J Nanomater Mol Nanotechnol 2(1): 1-5. http://doi.org/10.4172/2324-8777.1000106
Taghiyari, H.R.; Ghorbanali, M.; Tahir, P.M.D. 2014. Effects of the improvement in thermal conductivity coefficient by nano-wollastonite on physical and mechanical properties in medium density fiberboard (MDF), BioResources 9(3): 4138-4149. http://doi.org/10.15376/biores.9.3.4138-4149
Yel, H.; Donmez Cavdar. A.; Boran Torun, S. 2020. Effect of press temperature on some properties of cement bonded particleboard. Maderas-Cienc Tecnol 22(1): 83-92. http://doi.org/10.4067/S0718-221X2020005000108
Wei, Y. M.; Tomita, B.; Hiramatsu, Y.; Miyatake, A.; Fujii, T.; Fujii, T.; Yoshinaga, S. 2003. Hydration behavior and compressive strength of cement mixed with exploded wood fiber strand obtained by the water-vapor explosion process. J Wood Sci (49): 317-326. http://doi.org/10.1007/s10086-002-0479-5