Polypropylene CaCO mechanical properties

Nucleating agents not only shorten the time of crystallization but also improve the mechanical properties of materials. Polypropylene processed with a nucleating agent (2% CaCOs) had its impact strength and modulus increased by 50%. ... 

Ma,C.G. Mai, Y.L. Rong, M.Z. Ruan, W.H. Zhang M.Q. (2007). Phase structure and mechanical properties of ternary polypropylene/elastomer/nano-CaCOs composites. Composites Science and Technology, vol.67, No.l4, pp.2997-3005, ISSN ... 

The TiO nanoparticles can be modified by vinyltrimethoxysilane for dispersing in polyethylene matrix [37]. In a similar manner, the SiO nanoparticle is modified by the 3-aminopropyltrimethoxysilane and 3-glycydyloxypropyltrimethoxysilane to improve the mechanical properties [38] and fractme toughness [39] respectively. ZnO nanoparticle is modified by 3-(trimethoxysilyl) propyl methacrylate (TPMA) surfactant [34]. Researchers have also modified the CaCO nanoparticle with stearic acid to improve the compatibility with the polypropylene matrix [30,40]. 

Weon J-I and Sue H-J (2006) Mechanical properties of talc- and CaCOs-reinforced high-crystallinity polypropylene composites, J Mater Sci 41 2291-2300. 

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