Biocomposite optimization with NaOH-modified bagasse fiber, polybutylene succinate, and poly(lactic acid) using RSM approach

Alkali-treated bagasse fiber was used as a process variable for optimization of the properties polybutylene succinate/poly(lactic acid)-based biocomposites using Box-Behnken design (BBD) and response surface methodology (RSM). The optimum conditions three factors, i.e., NaOH-treated (0.55 to 1.65 g), succinate (1.1 2.3 poly(lactic acid) (2.2 3.4 g) on bending strength biocomposite were investigated. combination 0.91 g fiber, 1.14 succinate, 3.10 acid). fiber/polybutylene succinate/ composite 27.0 MPa, which 26.0% higher than native fiber-based composite. composites also characterized by thermogravimetric analysis, mechanical testing, Fourier transform infrared, scanning electron microscopy, water absorption, contact angle tests. Results demonstrated that strength, impact tensile alkali treated increased 26.0%, 15.5%, 23.3%, separately, compared with bagasse-based after sequential homogenization, compounding, hot pressing. hydrophobicity alkali-treated fiber/PBS/PLA improved. Thus, biomass materials/biodegradable polymer judged be suitable preparing green materials.