Thermal behavior of buriti biofoam

Materia

Portela, Tammy Godinho Rodrigues¹  Monteiro, Sergio Neves¹  Rodriguez, Rubén Jesus Sanchez¹  Costa, Lucas Lopes da¹  Santos, Nubia Suely Silva² 

[1] State University of the Northern Rio de Janeiro, Campos dos Goytacazes, Brazil;University of Campinas, Brazil

关键词: Buriti biofoam;    TGA;    DTG;    DSC;    thermal decomposition;    water evolution.;   

DOI  :  10.1590/S1517-70762010000200003

学科分类：工程和技术（综合）

来源: Universidade Federal do Rio de Janeiro * Coordenacao dos Programas de Pos-Graduacao de Engenharia

【 摘 要 】

A natural biofoam extracted from the petiole of the buriti palm tree has shown values of density and mechanical strength with potential for uses in engineering applications such as automobile interior parts and floating components. Moreover, foams can also be used as insulating materials in packing and building panels. In this case some thermal properties are required. Therefore, the objective of this work was to evaluate the thermal behavior of the buriti biofoam by means of TGA, DTG and DSC analysis. The TGA curves revealed weight loss related to release of humidity and molecular structure decomposition. Peaks in the DTG curves indicated two intervals in temperature associated with different decomposition processes. The only endothermic DSC peak found was attributed to the lignocellulosic water of hydration being lost around 121ºC.

【 授权许可】

CC BY