Research Article

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

Table 4

Analysis of variance for the quadratic model of tensile strength.

SourceSum of squaresDFMean squares valueProb

Model715.11979.4628.18<0.0001 significant
Residual28.20102.82
Lack-of-fit26.2455.2513.410.0064 significant
Pure error1.9650.39
Total743.3119

Std. dev. = 1.68, mean = 35.92, -square = 0.9621, and adeq. precision = 15.814.