Multi-Objective Optimization and Analysis of Mechanical Properties of Coir Fiber from Coconut Forest Waste

As a type of natural fiber with excellent elongation, coir has been applied in wide range fields. To ensure superb performance, is usually treated alkali before being applied. Previous studies paid little attention to the multiple treatment fiber; however, this study focuses on its influence mechanical properties and conducts multi-objective optimization analysis tensile strength, elastic modulus elongation fiber. Our objective comprehensive enhancement In study, experimental design based Box-Behnken method, three parameters were selected for namely NaOH concentration, time temperature. Analysis variance (ANOVA) was adopted analyze data, response surface methodology (RSM) used investigate how factors interact each other affect responses values. improve simultaneously, optimized. The results showed that optimal values temperature 4.12%, 15.08 h 34.21 °C, respectively. Under these conditions, strength 97.14 MPa, 2.98 GPa 29.35%, which 38.28%, 39.91% 25.59% higher than untreated fiber, Furthermore, scanning electron microscopy (SEM), thermogravimetric (TGA-DTG), Fourier-transform infrared spectroscopy (FTIR) X-ray diffraction (XRD) changes surface, weight loss, composition crystallinity under optimum conditions compared obtain deeper insight into influential mechanisms treatment.