Research Article

Optimization of Spraying Process via Response Surface Method for Fabrication of Cellulose Nanofiber (CNF) Film

Table 4

Response 2: thickness.

SourceSum of squaresdfMean square value value

Model0.046930.015657.84<0.0001Significant
: suspension concentration0.045310.0453167.44<0.0001
: velocity of the conveyor10.9997
: spray distance0.001610.00166.090.0261
Residual0.0041150.0003
Lack of fit0.0041110.0004
Pure error0.000040.0000
Cor. total0.051018

Factor coding is coded. Sum of squares is type III-partial.