Sustainable Manufacturing of Particleboards from Sawdust and Agricultural Waste Mixed with Recycled Plastics

摘要

In this paper particleboard panels were manufactured from sawdust and agricultural materials such that Wheat bran, Banana stems and Orange peels at different ratios (25 agricultural material: 75 sawdust) and (75 agricultural material: 25 sawdust) compared to 220g with constant amount 88g polypropylene (PP) under constant conditions at pressure 24 ton, 170C temperature, press time was 2.5 hours and particle size is 1 mm sieve. Properties of the boards were examined using mechanical tests, which include bending test and tensile test, and physical tests, which include water absorption and thickness swelling. The results of mechanical tests show that the maximum modulus of elasticity (MOE) value was 2160.78 Mpa at wheat 75%, the maximum modulus of rapture (MOR) value was 11.07 MPa at sawdust 100%, and the maximum value of max-stress was 7.8 MPa at banana 75%, the range of water absorption values was between (8.19%, 19.3%), these results were better than commercial types (MDF, Fiber and Press wood), which reach to 103% in MDF. The best mechanical properties were 75% wheat bran and sawdust 100% particleboard in bending test, and sawdust 100% particleboard in tensile test. Physical tests show that 75% banana particleboard has least water absorption value and thickness swelling percent, but 75% orange particleboard has the highest water absorption and thickness swelling percent.