Thermogravimetric Analysis for Composites and Fibers

The weight loss for the composite material started at 100°C, and for polypropylene started at 300°C. At 400°C, the weight loss increased with fiber content. Table 6.4 shows that the addition of fiber decreased the ultimate thermal stability in comparison to polypropylene alone. 

The peak temperatures for thermal degradation of the composites and the PP matrix occurred at approximately 458°C and 450°C, respectively. Table 6.4 shows that the addition of fibers caused a significant increase in the peak temperature for composite degradation, reaching 466°C for the composites reinforced with 20 wt% fibers treated with hot water. 

Sample Weight loss (%) Degradation temperature peak (°C) 

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