Effect of Palm Oil Fatty Acid Additive (POFA) on Curing Characteristics,Mechanical and Morphological Properties of Silica Filled Natural Rubber/Recycle Rubber Powder Blends

摘要

The effect of palm oil fatty acid additive (POFA) on curing characteristics,mechanical and morphological properties of silica filled natural rubber (NR)/recycle rubber powder (RRP) blends were studied.Results indicate that the presence of POFA is not only improved the cure rate of NR/RRP blends aut also improved it's processability.Compared to control NR/RRP blends,the presence of POFA increased the mechanical properties such as tensile strength,tensile modulus and hardness of silica filled NR/RRP blends.The presence of POFA enhanced crosslink density and improved filler dispersion of silica filled NR/RRP blends which consequently increases the silica-NR/RRP interaction.