Influence of wood species on properties of injection mould natural flour-HDPE composites

4th International Conference on Manufacturing, Optimization, Industrial and Material Engineering

Ratanawilai, Thanate^1 ; Leeyoa, Massalan^1 ; Tiptong, Yoawanat^1

Department of Industrial Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla, Hat Yai, Thailand^1

关键词: Effect of temperature;    Flexural testing;    Injection mould;    Injection moulding machine;    Ultimate tensile strength;    Uniform distribution;    Wood plastic composite;    Wood-plastic composites;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/131/1/012002/pdf
DOI  :  10.1088/1757-899X/131/1/012002

来源: IOP

【 摘 要 】

Four combinations of wood flour, HDPE, and maleic anhydride (MA) include; (1) rubberwood:HDPE (30:70), (2) rubberwood: HDPE:MA (30:67:3), (3) palm oil:HDPE (30:70), and (4) palm oil:HDPE:MA (30:67:3) were studied. The injection moulding machine was used to produce wood plastic composites (WPCs). Maleic anhydride is an ingredient in bonding agents used to manufacture wood plastic composites. Extrusion molding process was conducted to prefabricate WPCs. Consequently, the effect of temperature and pressure ranging from 180, 190, 200°C and 2300, 2400, 2500 bar on injection molding was evaluated. Mechanical properties were tested including flexural testing and tensile testing according to ASTM D790 and D638, respectively. Hardness testing according to ASTM D2240 and scanning electron microscope (SEM) were also performed. Five replications were done on each test. The result showed that rubberwood:HDPE (30:70) gave a highest strength. The values of ultimate tensile strength, flexural strength, and hardness are 24.9 MPa, 33.3 MPa and 67.2 shore D, respectively. Finally, the uniform distribution of particle in WPCs, examined through SEM was achieved.