Hybrid Polypropylene Biocomposites Reinforced with Short Man-Made Cellulose Fibres and Softwood Flour-Optimisation of Properties Using Response Surface Methodology.

The data of Table 4 demonstrate that the third-order polynomial equation of tensile, flexural, notched Izod strength, and absorbed energy values were highly significant with a high value of the adjusted coefficient of determination ( R a d j 2 > 0.95) and low values of other estimates, respectively.

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