Optimization of Process Parameters for Injection Moulding of Nylon6/SiC and Nylon6/B4C Polymer Matrix Composites

Abstract

In this research study, the mechanical properties of several Polymer matrix composites are investigated. These composites are multi-phase materials in which reinforcing materials are properly mixed with a polymer matrix. More precisely, Nylon 6 reinforced with 5, 15 and 25 wt. % of silicon carbide (SiC) and Nylon 6 reinforced with 5, 15 and 25 wt. % of boron carbide (B 4 C), prepared by means of an injection moulding process at three different injection pressures are considered. Specific attention is paid to the tensile and impact strength of these composites. The Taguchi technique is used to optimize the process parameters such as reinforcement material, its percentage and the injection pressure. It is observed that the specimens 5% SiC with 80 MPa injection pressure display a better tensile strength and similarly the specimen 5% B 4 C with 90 MPa injection pressure have a superior impact strength.

Wear Performance Analysis of Nylon-6/Boron Nitride Polymer Composites Using Taguchi-Pareto and Taguchi-Abc Methods

“…In this context, the coefficient of determination was made and obtained as 0.3586%. This is very low as it states that the Taguchi method utilized in Boopathy et al (2022) cannot be used to explain the behaviour of the Taguchi-Pareto method.…”

“…However, on comparing part B of Taguchi-ABC with Taguchi-Pareto, the coefficient of determination obtained is 99.02%, which is high. As a strategy to strengthen the quality of the present article such that an adequate understanding of the proposed method is made, the delta values obtained from the Taguchi-Pareto method are compared with that the delta values obtained from Boopathy et al (2022). In this context, the coefficient of determination was made and obtained as 0.3586%.…”

“…Research on optimization processes of nylon-6/boron nitride composites has been active for some years now. Boopathy et al (2022) analyzed the mechanical characteristics of nylon 6/SiC and nylon6/B4C composites by focusing on the injection moulding pressure, and wt% reinforced material composition as the influential parameters. The key conclusion is that at the injection pressure of 80MPa and considering the 5%SiC superior tensile strength, while at the 90MPa of injection pressure and considering the 5%B4C, better impact strength was achieved.…”