Title

CHARACTERIZATION OF MALVA FIBERS THERMAL BEHAVIOR BY TGA/DTG AND DSC

CHARACTERIZATION OF MALVA FIBERS THERMAL BEHAVIOR BY TGA/DTG AND DSC

Authorship

Margem, Jean Igor; Muylaert, Frederico Margem; Monteiro, Sergio Neves

Margem, Jean Igor

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Muylaert, Frederico Margem

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Monteiro, Sergio Neves

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DOI

10.5151/2594-5327-22874

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Abstract

A natural malva fiber extracted from the plant has shown values of density and mechanical strength with potential for uses in engineering applications such as automobile interior parts and floating components. Moreover, natural fibers can also be used as insulating materials in packaging 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 malva fiber 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.

A natural malva fiber extracted from the plant has shown values of density and mechanical strength with potential for uses in engineering applications such as automobile interior parts and floating components. Moreover, natural fibers can also be used as insulating materials in packaging 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 malva fiber 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.

Keywords

Malva fiber; Thermal decomposition; Water evolution.

Malva fiber; Thermal decomposition; Water evolution.