Determination of total extractives and cellulose content of Ipe wood submitted to thermal modification process
DOI:
https://doi.org/10.5965/223811712212023123Keywords:
extractives content, cellulose content, thermal treatment, Handroanthus chrysotrichus, celluloseAbstract
The demand for products from wood has been expanding, because of this, there is a need for studies related to the quality and application of these materials. Thus, the present research aimed to evaluate the extractive and cellulose content of Ipê wood submitted to the thermal modification process. To carry out the study, four individuals of Handroanthus chrysotrichus (Mart. ex DC.) Mattos, 11 years old, were slaughtered. Subsequently, samples measuring 2.5 x 2.5 x 41 cm were prepared and placed in an oven with forced air circulation, at temperatures of 120, 150, 180 and 210 ºC, for a period of 4 h. Then, random portions of the specimens were sectioned and ground in a knife mill, and then, sieved in the 40/60 mesh fraction, to carry out the chemical tests of total extractives and cellulose content. The data were processed and submitted to the Tukey average test, using the R software. The results of the chemical properties studied indicated variations according to the temperatures, not showing a stabilization trend between the treatments applied. A relationship between the behavior of these properties and the other technological characteristics of the works available in the literature was observed. In general, further studies are recommended on the chemical properties of wood of this species associated with the application of high temperatures.
Downloads
References
ALMEIDA APS et al. 2015. Determinação de Propriedades Químicas de Madeiras do Sul da Amazônia. Arquivos Eletrônicos Científicos 8: 1-4.
BARNETOA AG et al. 2011. Eucalyptus kraft pulp production: Thermogravimetry monitoring. Thermochimica Acta 520: 110-120.
BATISTA DC. 2019. Retificação térmica, termorretificação, tratamento térmico, tratamento com calor ou modificação térmica? Ciência Florestal 29: 463-480.
BRITO JO et al. 2008. Chemical composition changes in Eucalyptus and Pinus woods submitted to heat treatment. Bioresource Technology 99: 8545-8548.
CANDATEN L et al. 2020. Physical-mechanical properties and biological resistance of thermally modified juvenile Handroanthus chrysotrichus wood. Revista de Ciências Agrárias – Amazonian Journal of Agricultural and Environmental Sciences 63: 8p.
FONTOURA MR et al. 2015. Propriedades mecânicas e químicas da madeira de Hovenia dulcis Thunberg. Tratada termicamente. Ciência da Madeira 6: 166-175.
GALLIO E et al. 2019. Influência dos tratamentos de termorretificação e furfurilação em propriedades tecnológicas de uma conífera. Matéria 24: 10p.
HILL CAS. 2006. Wood Modification: Chemical, Thermal and Other Processes. Chichester: John Wiley & Sons Ltda.
JEBRANE M et al. 2018. Comparative study of two softwood species industrially modified by 339 Thermowood® and thermo-vacuum process. BioResourses 13: 715-728.
KAMDEM DP et al. 2022. Durability of heat-treated wood. Holz als Roh-und Werkstoff 60: 1-6.
MANGINI TS et al. 2021. Características anatômicas da madeira de Handroanthus crysotrichus submetida ao processo de modificação térmica. Advances in Forestry Science 8: 1403-1408.
MEDEIROS NETO et al. 2012. Características físico-químicas e energéticas de duas espécies de ocorrência no semiárido brasileiro. Ciência Florestal 22: 579-588.
MENEZES WM et al. 2014. Modificação térmica nas propriedades físicas da madeira. Ciência Rural 44: 1019-1024.
MODES KS et al. 2017. Influência da termorretificação na resistência a degradação biológica das madeiras de Pinus taeda e Eucalyptus grandis. Ciência Florestal 27: 993-1002.
MUSINGUZI WB et al. 2012. Thermal characterization of Uganda’s Acacia hockii, Combretum molle, Eucalyptus grandis and Terminalia glaucescens for gasification. Biomass and Bioenergy 46: 402-408.
OLIVEIRA IR et al. 2012. Chemical characterization of Handroanthus vellosoi wood. Revista Instituto Florestal 24: 67-73.
PEREIRA MPDCF et al. 2016. Torrefação de cavacos de eucalipto para fins energéticos. Pesquisa Florestal Brasileira 36: 269-275.
PIERRE F et al. 2011. Influence of torrefaction on some chemical and energy properties of Maritime pine and Pedunculate oak. Bioresoureces 6: 1204-1218.
POLETTO M et al. 2012. Thermal decomposition of wood: Influence of wood components and cellulose crystallite size. Bioresource Technology 109: 148-153.
SANTOS LHO et al. 2020. Características químicas e físicas da madeira de mogno africano (Khaya ivorensis A. Chev.). Nativa 8: 361-366.
SEVERO ETD et al. 2012. Physical and chemical changes in juvenile and mature woods of Pinus elliottii var. elliottii by thermal modification. European Journal of Wood and Wood Products 70: 741–747.
SEVERO ETD et al. 2016. Changes in the chemical composition and decay resistance of thermally-modified Hevea brasiliensis wood. Plos One 11: e0151353.
SILVA MR et al. 2008. Efeito do tratamento térmico nas propriedades mecânicas de Pinus elliottii. In: XI Encontro Brasileiro em Madeira e Estruturas de Madeira. Londrina: EBRAMEM. p.11.
WASTOWSKI AD. 2018. Química da Madeira. Rio de Janeiro: Interciência. 566p.
ZANUNCIO AJV et al. 2014. Química e colorimetria da madeira de Eucalyptus grandis w. Mill Ex Maiden termorretificada. Revista Árvore 38: 765-770.
ZAQUE LAM et al. 2021. Teores de extrativos na madeira de Mogno Brasileiro Teores extrativos em madeira de mogno brasileiro. Brazilian Applied Science Review 5: 1871-1880.
Published
How to Cite
Issue
Section
License
Copyright (c) 2022 Authors & Revista de Ciências Agroveterinárias
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors publishing in this journal are in agreement with the following terms:
a) Authors maintain the copyrights and concede to the journal the copyright for the first publication, according to Creative Commons Attribution Licence.
b) Authors have the authority to assume additional contracts with the content of the manuscript.
c) Authors may supply and distribute the manuscript published by this journal.
