Influence of nano wollastonite on physical, mechanical and morphological properties of gypsum composites manufactured from bagasse



Título del documento: Influence of nano wollastonite on physical, mechanical and morphological properties of gypsum composites manufactured from bagasse
Revue: Maderas : ciencia y tecnología
Base de datos:
Número de sistema: 000534513
ISSN: 0718-221X
Autores: 1
2
1
Instituciones: 1Technical and Vocational University Technical Faculty of Number 2 Department of Wood Science and Engineering, Sari. Iran
2Islamic Azad University Faculty of Natural Resources and Environment Science and Research Branch Department of Wood and Paper Science and Technology, Tehran. Iran
Año:
Volumen: 22
Número: 3
Paginación: 405-416
País: Chile
Idioma: Inglés
Resumen en inglés 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 standards specifications for the fire resistance (weight loss) properties and 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.
Keyword: Bagasse,
Density,
Internal bonding,
Modulus of rupture,
Nano wollastonite
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