Tensile[36] , flexural [37] , and Izod impact [38] properties were
evaluated according to the appropriate ASTM standards. For tensile
tests, type I specimens were tested at a strain rate of 1 mm/
mm min. The initial slopes of the tensile and flexural curves were
determined by fitting a hyperbolic tangent function to the initial
curve portion from the origin to yield point. All correlation coeffi-cients were 0.995 or greater. High speed puncture impact