Thermal degradation of cellulose derivatives/starch blends and sisal short fibers composites

VERA ALVAREZ; ANALÍA VÁZQUEZ

Polymer Degradation and Stability

ELSEVIER SCI LTD

Año: 2004 vol. 84 p. 13 - 21

1873-2321

Thermal analysis of cellulose derivatives/starch blends with different sisal short fibre content, were performed by TGA/DTGA under dynamic conditions. Apparent kinetic parameters were determined using a variety of conventional thermogravimetric methods. Two peaks were found: the first close to 334
C and the second at 369
C. The apparent activation energy value of the first peak slightly increased as well as the maximum temperature value. The apparent activation energy values for the second peak decreased as well as the maximum temperature value. The addition of the sisal fibres has not produced a high effect on the thermal degradation of the composites materials in comparison with the matrix alone