Abstract
Calcium carbonate-filled polypropylene composites were processed on two different highintensity mixing devices. The resulting relationships between morphology, processing conditions and mechanical properties of these composites were studied using an electron microscope with an image-analysis system and impact and tensile testing. Only under more extreme conditions did the recently developed turbine mixer give as good a dispersion as the classical Banbury-style mixer. Relatively small additions of the filler resulted in small increases in absorbed impact energy. Semi-quantitative information about the randomness achieved in the mixing process was obtained using a dilation/counting procedure and computer-derived spatial images. Object-specific parameters such as the percentage of objects greater than 1 μm in size give good correlation with the mechanical properties of the mixture.
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Herzig, R., Baker, W.E. Correlations between image-analysed morphology and mechanical properties of calcium carbonate-filled polypropylene. JOURNAL OF MATERIALS SCIENCE 28, 6531–6539 (1993). https://doi.org/10.1007/BF00356389
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DOI: https://doi.org/10.1007/BF00356389