Influence of injection temperatures and fiberglass compositions on mechanical properties of polypropylene

International Technical Postgraduate Conference

Keey, Tony Tiew Chun^1 ; Azuddin, M.^1

Department of Mechanical Engineering Faculty of Engineering, University of Malaya, Kuala Lumpur

50603, Malaysia^1

关键词: Conventional injection molding;    Increasing temperatures;    Injection molding process;    Injection temperature;    Large scale productions;    Manufacturing process;    Micro-injection molding;    Tensile specimens;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/210/1/012080/pdf
DOI  :  10.1088/1757-899X/210/1/012080

来源: IOP

【 摘 要 】

Injection molding process appears to be one of the most suitable mass and cost efficiency manufacturing processes for polymeric parts nowadays due to its high efficiency of large scale production. When down-scaling the products and components, the limits of conventional injection molding process are reached. These constraints had initiated the development of conventional injection molding process into a new era of micro injection molding technology. In this study, fiberglass reinforced polypropylenes (PP) with various glass fiber percentage materials were used. The study start with fabrication of micro tensile specimens at three different injection temperature, 260°C, 270°C and 280°C for different percentage by weight of fiberglass reinforced PP. Then evaluate the effects of various injection temperatures on the tensile properties of micro tensile specimens. Different percentage by weight of fiberglass reinforced PP were tested as well and it was found that 20% fiberglass reinforced PP possessed the greatest percentage increase of tensile strength with increasing temperatures.