Quantitative evaluation of microwave irradiation on short-rotation plantation wood species

Abstract: The durability of imported timber is a matter of growing concern in the tropical Indian climate, with their refractory nature further adding to the woes with respect to further processing. In the present study, the effect of microwave pre-treatment, exposure time and initial wood moisture...

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Autores principales:	Ganguly,Sauradipta, Hom,Sanjeet Kumar, Tripathi,Sadhna, Ghosh,Subhrajit, Kanyal,Renu, Samani,Ajmal
Lenguaje:	English
Publicado:	Universidad del Bío-Bío 2021
Materias:	Impregnation microwave permeability southern yellow pine Tectona grandis treatability wood durability.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100425
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spelling	oai:scielo:S0718-221X20210001004252021-05-30Quantitative evaluation of microwave irradiation on short-rotation plantation wood speciesGanguly,SauradiptaHom,Sanjeet KumarTripathi,SadhnaGhosh,SubhrajitKanyal,RenuSamani,Ajmal Impregnation microwave permeability southern yellow pine Tectona grandis treatability wood durability. Abstract: The durability of imported timber is a matter of growing concern in the tropical Indian climate, with their refractory nature further adding to the woes with respect to further processing. In the present study, the effect of microwave pre-treatment, exposure time and initial wood moisture content on retention, treatability and cross-sectional anatomical properties of Tectona grandis and Southern yellow pine imported from Ghana and South America were evaluated. Water based preservative copper chrome borate (CCB) of 2 % concentration was used for the study. The experimental study in combination with dip-diffusion method returned with significant improvement in retention of about 5-6 folds more than the control sets in Southern yellow pine and Tectona grandis. Another set of Southern yellow pine and Tectona grandis samples were further treated using a full cell pressure method after microwave, without initial vacuum, which showed similar trends with a 3-4 folds increase in retention over controls. Both experiments returned with significant improvement in the treatability class of Tectona grandis and Southern yellow pine. The anatomical analysis was performed using a light microscope with 5 and 10x magnifications on treated and untreated samples of both Tectona grandis and Southern yellow pine. The outcome of the anatomical study exhibited improvement in vessel diameters in the treated samples of Tectona grandis with a reduction in the degree of occlusion by the presence of tyloses. For Southern yellow pine, checks on micro level and cracks on macro level appeared along with the ray cells and the diameter of the resin canals was substantially expanded which ascertains that microwave pre-treatment ameliorated the flow of fluids in the wood microstructure which improved permeability and resulted in better uptake and penetration.info:eu-repo/semantics/openAccessUniversidad del Bío-BíoMaderas. Ciencia y tecnología v.23 20212021-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100425en10.4067/s0718-221x2021000100425
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Impregnation microwave permeability southern yellow pine Tectona grandis treatability wood durability.
spellingShingle	Impregnation microwave permeability southern yellow pine Tectona grandis treatability wood durability. Ganguly,Sauradipta Hom,Sanjeet Kumar Tripathi,Sadhna Ghosh,Subhrajit Kanyal,Renu Samani,Ajmal Quantitative evaluation of microwave irradiation on short-rotation plantation wood species
description	Abstract: The durability of imported timber is a matter of growing concern in the tropical Indian climate, with their refractory nature further adding to the woes with respect to further processing. In the present study, the effect of microwave pre-treatment, exposure time and initial wood moisture content on retention, treatability and cross-sectional anatomical properties of Tectona grandis and Southern yellow pine imported from Ghana and South America were evaluated. Water based preservative copper chrome borate (CCB) of 2 % concentration was used for the study. The experimental study in combination with dip-diffusion method returned with significant improvement in retention of about 5-6 folds more than the control sets in Southern yellow pine and Tectona grandis. Another set of Southern yellow pine and Tectona grandis samples were further treated using a full cell pressure method after microwave, without initial vacuum, which showed similar trends with a 3-4 folds increase in retention over controls. Both experiments returned with significant improvement in the treatability class of Tectona grandis and Southern yellow pine. The anatomical analysis was performed using a light microscope with 5 and 10x magnifications on treated and untreated samples of both Tectona grandis and Southern yellow pine. The outcome of the anatomical study exhibited improvement in vessel diameters in the treated samples of Tectona grandis with a reduction in the degree of occlusion by the presence of tyloses. For Southern yellow pine, checks on micro level and cracks on macro level appeared along with the ray cells and the diameter of the resin canals was substantially expanded which ascertains that microwave pre-treatment ameliorated the flow of fluids in the wood microstructure which improved permeability and resulted in better uptake and penetration.
author	Ganguly,Sauradipta Hom,Sanjeet Kumar Tripathi,Sadhna Ghosh,Subhrajit Kanyal,Renu Samani,Ajmal
author_facet	Ganguly,Sauradipta Hom,Sanjeet Kumar Tripathi,Sadhna Ghosh,Subhrajit Kanyal,Renu Samani,Ajmal
author_sort	Ganguly,Sauradipta
title	Quantitative evaluation of microwave irradiation on short-rotation plantation wood species
title_short	Quantitative evaluation of microwave irradiation on short-rotation plantation wood species
title_full	Quantitative evaluation of microwave irradiation on short-rotation plantation wood species
title_fullStr	Quantitative evaluation of microwave irradiation on short-rotation plantation wood species
title_full_unstemmed	Quantitative evaluation of microwave irradiation on short-rotation plantation wood species
title_sort	quantitative evaluation of microwave irradiation on short-rotation plantation wood species
publisher	Universidad del Bío-Bío
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-221X2021000100425
work_keys_str_mv	AT gangulysauradipta quantitativeevaluationofmicrowaveirradiationonshortrotationplantationwoodspecies AT homsanjeetkumar quantitativeevaluationofmicrowaveirradiationonshortrotationplantationwoodspecies AT tripathisadhna quantitativeevaluationofmicrowaveirradiationonshortrotationplantationwoodspecies AT ghoshsubhrajit quantitativeevaluationofmicrowaveirradiationonshortrotationplantationwoodspecies AT kanyalrenu quantitativeevaluationofmicrowaveirradiationonshortrotationplantationwoodspecies AT samaniajmal quantitativeevaluationofmicrowaveirradiationonshortrotationplantationwoodspecies
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Quantitative evaluation of microwave irradiation on short-rotation plantation wood species

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