Polypropylene Nanocomposite Based on Nanoclay and Polyester-Amide Hyperbranched Polymer: Development and Characteristics Investigation

Polypropylene is a thermoplastic polymer which is not a paintable polymer. Some intrinsic characteristics such as hydrophobicity, non polar structure, high crystallinity and steric orderness make it difficult for a polymeric coating to adhere on the polypropylene surface. To overcome such disadvantage, a rout was designed in which nano organic particles based on polyesteramide and nano inorganic particles (nanoclay) were used to modify polypropylene. Dendritic polymers possess a micellar core-shell spherical structure that are covalently bonded together and are able to be used as dispersing agent for nanoclay in polymeric matrices. The obtained samples underwent various experiments to assess the modification process and its effect on the physical, mechanical and structural properties. Thermal, morphological and rheometrical experiments revealed that different structures with intercalate and exfoliated order have been obtained. Mechanical tests also declared that the modification process has been useful. Finally measurements of contact angle cleared that in samples containing inorganic and organic nano particles, paintability has been improved. J. Color Sci. Tech. 7(2014), 347-364©. Institute for Color Science and Technology.