4 documents found, page 1 of 1
DENSIDADE BÁSICA E ESTABILIDADE DIMENSIONAL DE MADEIRAS TROPICAIS MODIFICADAS P...
Soares Lobato, Camila Cristina; Do Vale, Igor; Martins de Souza, Lyssa; Lima de Abreu, Juliana Livian; Costa Ferreira, Gracialda; Bufalino, LinaO objetivo deste estudo foi avaliar as modificações de propriedades físicas das madeiras de três espécies tropicais de interesse comercial por tratamentos térmicos conduzidos com diferentes temperaturas e tempos de exposição ao calor. Amostras de madeira de Pouteria caimito, Protium altissimum e Jacaranda copaia foram submetidas a modificações térmicas a 180 e 240 °C, ambas por 1 e 2 h. Foram avaliadas redução ...
The adhesive effect on the properties of particleboards made from sugar cane ba...
Mendes, Rafael Farinassi; Mendes, Lourival Marin; Guimarães Júnior, José Benedito; Santos, Rosimeire Cavalcante dos; Bufalino, LinaThe objective was to evaluate the effect of the adhesive type and its different contents on sugar cane bagasse particleboards. The panels were produced using Urea-Formaldehyde (UF) and Phenol-Formaldehyde (PF) adhesives. Three adhesive contents were tested: 6, 9 and 12%. The boards were made by using an 8-minute press closing time, pressure of 40kgf/cm², and temperature of 160ºC for the UF adhesive and 180ºC fo...
Chemical and energetic characterization for utilization of thinning and slab wo...
Bufalino, Lina; Protásio, Thiago de Paula; Couto, Allan Motta; Nassur, Otávio Augusto Carvalho; de Sá, Vânia Aparecida; Trugilho, Paulo FernandoThis work aimed to quantify and compare chemical and energetic properties of Australian red cedar Toona ciliata MJ Roem var. australis (FV Muell.) C. DC wood from thinning and primary sawing for reconstituted panel and energy production; and also to verify the efficiency of extractive removal by water treatments, in order to improve wood quality for particleboard production. Lignin, holocellulose, extractives, ...
Relation between higher heating value and elemental and mineral biomass plant c...
Protásio, Thiago de Paula; Bufalino, Lina; Tonoli, Gustavo Henrique Denzin; Couto, Allan Motta; Trugilho, Paulo Fernando; Guimarães Júnior, MárioThe aims of this work were to evaluate the correlation, to adjust and select simple and multiple linear statistical models between elemental components (carbon, hydrogen and oxygen) and ash content with higher heating value for plant biomass; to use the principle components analysis for the creation of an energetic development index and to adjust a linear model between energetic development index and higher hea...