Tratamento térmico da madeira em atmosfera de glicerina

Anderson Pertuzzatti; André Luiz Missio; Darci Alberto Gatto; Jorge Antônio Farias; Clóvis Roberto Haselein

doi:10.4336/2016.pfb.36.88.1183

Authors

Anderson Pertuzzatti Universidade Federal de Santa Maria
André Luiz Missio Universidade Federal de Santa Maria
Darci Alberto Gatto Universidade Federal de Pelotas
Jorge Antônio Farias Universidade Federal de Santa Maria
Clóvis Roberto Haselein Universidade Federal de Santa Maria

DOI:

https://doi.org/10.4336/2016.pfb.36.88.1183

Keywords:

Biodiesel, Hygroscopicity, Colorimetry

Abstract

This study aimed to evaluate heat treatment of wood under glycerin atmosphere, that is residue of biodiesel industry, and indicate uses of the product in different wood markets. Six Eucalyptus grandis and E. cloeziana trees were selected from homogeneous plantation with 21 years old. Wood samples taken from trees were laid in a laboratorial-scale oil bath with glycerin at 50 °C and they were heat-treated in glycerin atmosphere at 125 °C and 165 °C for 30 min. Control treatment was not heat-treated. Mass loss, changes in equilibrium moisture content and maximum water absorption were measured. Colorimetric parameters were determined by CIEL*a*b* system. A completely randomized design was applied, considering two temperatures and control treatment. Heat treatment in glycerin atmosphere decreased the equilibrium of moisture content and resulted in darker wood surface. Although heat-treated wood with glycerin shows restrictions related to water contact, it can be used indoors.

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Author Biographies

Anderson Pertuzzatti, Universidade Federal de Santa Maria

http://lattes.cnpq.br/4141917305308912

André Luiz Missio, Universidade Federal de Santa Maria

http://lattes.cnpq.br/6923877786371495

Darci Alberto Gatto, Universidade Federal de Pelotas

http://lattes.cnpq.br/0592339091520248

Jorge Antônio Farias, Universidade Federal de Santa Maria

http://lattes.cnpq.br/9537008908546721

Clóvis Roberto Haselein, Universidade Federal de Santa Maria

http://lattes.cnpq.br/5522749609471065

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