Effect of nanoclay on mechanical properties of HDPE/wheat straw composite

The effect of nanoclay particles addition to composite mixture on mechanical properties of HDPE/ wheat straw powder was studied. The composite compound was prepared using 35% wheat straw as reinforcement, 63% high-density polyethylene (HDPE) and 2% MAPP as coupling agent and different amounts of nanoclay (1%, 2% and 3%) were used. The composite compound was made using a counter-rotating twin-screw extruder and test specimens prepared by injection molding. Results showed that at higher dosages of nanoclay particles, the flexural strength and tensile strength increased. However, the addition of nanoclay particles has led to the decreased impact strength.