The Influence of Organoclay on Polypropylene Composite Films for Synthetic Paper |
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Authors: | Janaina Rita Vieira Borges Amélia S. F. e Santos |
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Affiliation: | 1. Graduate Program of Materials Science and Engineering, Federal University of S?o Carlos , Brazil, S?o Carlos-SP, Brazil;2. Department of Materials Engineering , Federal University of Rio Grande do Norte , Natal-RN, Brazil |
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Abstract: | The influence of type and content of modified montmorillonite (MMT) clay and amount of compatibilizing agent on physical-mechanical properties of polypropylene (PP)/organoclay films were studied. An unexpected decrease in tensile elastic modulus and yield stress was observed, and a striking drop in film density. SEM micrographs showed film microcavitation at polymer/clay interfaces. Experimental design analysis indicated that the most important parameter was the organoclay content: the higher the proportion of MMT, the lower the values of film properties. The addition of compatibilizer promoted an improvement in these film properties, probably due to the formation of less porous film. |
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Keywords: | Extrusion Mechanical properties Polymer-matrix composites (PMCS) Statistical analysis |
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