Abstract

This study was carried out to investigate the how aragonite precipitated calcium carbonate (PCC) with specific needle shape morphology prepared from natural limestone and how it is effectively worked as versatile functional filler to light weight plastic. Aragonite was synthesized from limestone by ecofriendly carbonation process under optimal experimental conditions. The synthesized needle like aragonite precipitated calcium carbonate (PCC) was influenced mechanical properties such as tensile strength, impact resistance, flexural modulus, young’s modulus and thermal properties of polypropylene composites. The effects of CaCO3 of varying particle sizes (0.1µm ~ 80 µm) content (0–40 wt%) on the crystallization and mechanical properties, and process ability of CaCO3-filled s-PP were investigated.

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