Changes of Vietnamese sisal fibres properties after Sodium Hydroxide treatment

Abstract

The effect of sodium hydroxide on the properties of Vietnamese raw sisal fibres was studied for the applications of treated sisal fibres in the polyolefin-based composites. The results showed the densities decreased from about 7% to 8%, the level of natural moisture absorption by the fibres decreased 32%. The bands of infrared (IR) spectras showed the partial transition from cellulose I to cellulose II due to the change its lignin and hemicellulose components by 18% NaOH at high thermal treatment of 80°C and 100°C.