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Strengthening and modification of polypropylene by utilizing talc and calcium carbonate

Seyed Javad Ahmadpanah, Majid Kakavand, Keyvan Khorsand

In order to modify and improve the polypropylene properties, it has to be reinforced enriched with some inorganic materials such as Talc and calcium carbonate. Enriched reinforced polypropylene composites includingTalc and calciumcarbonate, are produced by extruding method in certain mass gravimetric range (0-15 mass %). To improve the composition of polypropylene and stiffeners mentioned above, the surface of the stiffeners shall be modified with a conjugated silane agent. In this study, after preparation of compositionswith differentweight percentages, the effects of stiffeners on polypropylene hardness were investigated. Results of experiments show that in the same concentration, Talc enhances the hardness of polypropylene more than calciumcarbonate.