Response Surface Methodology for the Optimization of Preparation of Biocomposites Based on Poly(lactic acid) and Durian Peel Cellulose

Table 1

Coded levels of variables.

Variables	Coded levels
			0^a	+1	+α
: cellulose loading (wt. %)	21.6	25	30	35	38.4
: temperature (°C)	161.6	165	170	175	178.4
: time (min)	11.6	15	20	25	28.4

Center point; (three independent variables).
α = 1.6818.