Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/49320
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dc.creatorSouza, Naiara Conceição Marques de-
dc.creatorLima, José Tarcísio-
dc.creatorSoares, Bruno Charles Dias-
dc.date.accessioned2022-02-15T16:46:46Z-
dc.date.available2022-02-15T16:46:46Z-
dc.date.issued2021-08-12-
dc.identifier.citationSOUZA, N. C. M. de; LIMA, J. T.; SOARES, B. C. D. Application of X-ray diffraction to assess the microfibril angle of green and dry Eucalyptus grandis wood. Trees, [S.l.], p. 1-7, 2021. DOI: 10.1007/s00468-021-02194-9.pt_BR
dc.identifier.urihttps://link.springer.com/article/10.1007/s00468-021-02194-9pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/49320-
dc.description.abstractWood drying is essential for most wood uses; however, the removal of water from wood can lead to defects. Although it is consolidated that water removal to below the fibers saturation point causes a decrease in the distance between cellulose microfibrils, little is known about how the microfibril angle (MFA) behaves in dry wood in terms of the cell wall ultrastructure. The hypothesis investigated in this study is that with the reduced distance between cellulose microfibrils after drying, there is a simultaneous decrease in MFA. Therefore, the objective of the work was to estimate the microfibril angle of dry and green wood using X-ray diffraction (XRD) and then to compare the MFA of the wood in both conditions mentioned. The basal discs from stems of Eucalyptus grandis with age of 22 years were used to produce the samples used in the measurement of MFA by polarized light microscopy and of the T value by XRD. The mean MFA measured by polarized light microscopy was 7.0°. MFA could be estimated by T value obtained from XRD using the cubic model. The mean MFA estimated by this model was 9.0° for green wood and 7.5° for dry wood, concluding that the MFA in dry wood is slightly lower than in green wood.pt_BR
dc.languageen_USpt_BR
dc.publisherSpringerpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceTreespt_BR
dc.subjectCell wall ultrastructurept_BR
dc.subjectMicrofbril anglept_BR
dc.subjectX-ray difractionpt_BR
dc.subjectWood dryingpt_BR
dc.titleApplication of X-ray diffraction to assess the microfibril angle of green and dry Eucalyptus grandis woodpt_BR
dc.typeArtigopt_BR
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