Investigating the effects of recycling number and injection parameters on the mechanical properties of glass-fibre reinforced nylon 6 using Taguchi method

► The glass-fibre reinforced nylon 6 was processed until the five processing cycles. ► Samples were analyzed by chemical structures as a function of processing cycles. ► Effects of injection molding parameters on mechanical properties were investigated. ► The length of the fibres was shortened after each injection molding process. ► Decrement in mechanical properties after each reprocessing cycle was observed.