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Articles by Atanu Kumar Das
Total Records ( 3 ) for Atanu Kumar Das
  Inun Naher , Atanu Kumar Das , Subir Kumar Biswas and Md. Nazrul Islam
  This study summarizes results of a research aimed at assessing of preservative treatment of sapwood and heartwood of three important fast growing timber species of Bangladesh i.e., Swietenia macrophylla (mahogony), Albizia saman (raintree) and Acacia auriculiformis (akashmoni) with CCB by dipping method. Heartwood and sapwood of the three species treated with 8% concentration of Chromate-copper-boron (CCB) at 2:2:1 ratio using non-pressure dipping method for 72 h in the laboratory. The treated wood of these three species was inoculated with white-rot fungus (Ceriporiopsis subvermispora) to identify the effectiveness of CCB treatment. It was found that retention of CCB preservatives and penetration of boron was the highest for sapwood (7.29 kg m-3 and 98.63%) and heartwood (4.736 kg m-3 and 84.51%) of raintree among the three species. The weight loss percentage was the lowest for sapwood (0.62%) and heartwood (1.01%) of raintree among the three species. So, it was considered that heartwood and sapwood of raintree was provided best results.
  Atanu Kumar Das , Md. Azharul Islam , Md. Iftekhar Shams , Md. Obaidullah Hannan and Subir Kumar Biswas
  This study summarizes the results of Medium Density Fiberboard (MDF) made from bagasse using urea formaldehyde as a binder agent and without binding agent. Important physical and mechanical properties were examined. The density of MDF bagasse with binding agent and without binding agent was respectively 0.90 and 0.87 g cm-3. The Modulus of Rupture (MOR) of MDF bagasse with binding agent and without binding agent was 44.98 and 34.94 N mm-2 respectively. The Modulus of Elasticity (MOE) was 3532.34 and 3454.28 N mm-2 respectively for UF bonded bagasse MDF and without binding agent bagasse MDF. Board with addition of binding agent showed higher performance than that of without binding agent board for both physical and mechanical properties. But both kind of board followed the standard and also showed better quality than that of the previous studies. There is a possibility of using MDF of bagasse for both types as a substitute of MDF made from other agricultural residues.
  Atanu Kumar Das , Lakshmi Rani Mondal and Md. Iftekhar Shams
  This study was under taken to identify the physical and mechanical properties of kenaf (Hibiscus cannabinus) MDF and to evaluate the potential of kenaf MDF in Bangladesh. Properties were compared with market MDF in Bangladesh. Physical and mechanical properties were examined. The density of kenaf MDF and market MDF were respectively, 0.73 and 0.72 g cm-3. The MOR of kenaf and market MDF was 44.97 and 40.65 N mm-2, respectively. The MOE for kenaf and market MDF was 3786 and 3518 N mm-2, respectively. The physical and mechanical properties of kenaf MDF were better than market MDF. The kenaf MDF followed the standard and it can be a good source of raw material for MDF industries.
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