Influence of nanoclay on physical and mechanical properties of bio fiber/ plastic composite

摘要

The purpose of this paper was to investigate the influence of nanoclay on mechanical and physical properties of bio-fiber/ plastic composite. Four treatments were used and for each treatment there was 3 replications and totally 12 boards were made. Material (Polypropylene, anhydride maleic grafted with polypropylene, Nanoclay, Wood flour) were first mixed in a twin screw extruder at temperature of 175~(oc) and in form of granule were extruded. These granules were there converted to powder using mill. Powders were hot pressed at 175~(oc) for 20 min. Products were placed in cold press for 24h. Then after trimming and sampling, mechanical and physical properties were measured. Results showed that adding of wood flour up to 35% increased the MOR and MOE but additional increasing wood flour decreased MOR and MOE. With adding of nanoclay to mixture, physical (water absorption and thickness swelling) and mechanical (MOR, MOE and hardness) properties of bio-fiber/plastic composite increased noticeably.