Stabilizing treatments application after conventional drying to reduce the potential hygroscopic of wood

• Grant number: 12/15581-6
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: October 01, 2012
• End date: October 31, 2015
• Field of knowledge: Agronomical Sciences - Forestry Resources and Forestry Engineering - Technology and Use of Forest Products
• Principal Investigator: Ivaldo Pontes Jankowsky
• Grantee: Saly Takeshita
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated scholarship(s): 14/12922-2 - Determination of wood-water relationship and mass diffusivity after stabilizing treatment, BE.EP.DR

Abstract

Nowadays, one of the concerns of society is the search of sustainable materials and which does not harm the environment. Among the many alternatives, wood stands out because it is a natural source and it is renewable, recyclable and reusable. However, aspects related to lack of technical knowledge and the correct way to use wood product affect and, sometimes, prevent the greater use of this material in our country. The wood is subject to climate changes from site which it is exposed and, consequently, manifests the phenomenon of dimensional changes and the possibility of deformation; resulting in defects when in use. To minimize this effect, the timber passes through artificial drying processes, which, however, not able to eliminate the entire effect of its hygroscopic potential; justifying the possibility of applying additional heat treatments that may contribute to reduction of sorption sites. This way, this research will aim to improve the hardwood dimensional stability from application of additional heat treatments after conventional drying. After heat treatments the wood samples will be conditioned in climate boxes to evaluate the behavior of moisture adsorption and desorption. Also, will be conducted the anatomical and chemical composition characterization of samples submitted to heat treatments. It is expected as a result, to identify wood structural changes and understand the interrelationship with the hygroscopic potential of material; obtaining more dimensionally stability wood. (AU)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

TAKESHITA, Saly. Stabilizing treatments application after conventional drying to reduce the potential hygroscopic of wood. 2015. Doctoral Thesis - Universidade de São Paulo (USP). Escola Superior de Agricultura Luiz de Queiroz (ESALA/BC) Piracicaba.