THERMAL STABILITY AND MECHANICAL PROPERTIES OF SISAL IN CYCLE PROCESS

In this study, the thermal stability of sisal in cycle process was investigated between room temperatures and 600 degrees C in various conditions (in air, in composites, in argon) by thermogravimetry and mechanical testing measurement. The results indicated that the thermal stability of sisal was worse in air before five times of thermal cycles, but after the five times thermal stability of sisal in composites was better. In different conditions of same cycles process, the thermal stability of sisal was different. With increasing of thermal cycles times, the max. load (is the maximum strength in stress-strain curve) of sisal fiber showed downtendency in different conditions and decreased most obviously in composites.