%0 Journal Article
%T Tuning of nanotube/elastomer ratio for high damping/tough and creep resistant polypropylene/SEBS
%A Emre Tekay
%A Nihan Nugay
%A Sinan £¿en
%A Turgut Nugay
%J Journal of Composite Materials
%@ 1530-793X
%D 2019
%R 10.1177/0021998318794267
%X Polypropylene (PP)/maleic anhydride grafted polystyrene-b-poly (ethylene/butylene)-b-polystyrene (SEBS-g-MA)/organophilic halloysite nanotube clay ternary nanocomposites were produced by using HNT/SEBS-g-MA masterbatches at different nanotube loadings (1£¿wt%, 3£¿wt%, and 5£¿wt%). The masterbatches with different ratios of HNT/SEBS-g-MA (1/1, 1/2, and 1/3) were prepared via a revolution/rotation type mixing-assisted masterbatch process. All nanocomposites showed higher storage moduli and damping at low temperatures as compared to neat polypropylene. The nanocomposites having HNT/SEBS-g-MA ratio of 1/3 were found to act as effective dampers with their relatively higher damping values. In terms of short-term creep performance, 1£¿wt% and 3£¿wt% organophilic halloysite nanotube loaded systems with low amount of SEBS-g-MA (<9£¿wt%) enhanced dimensional stability of polypropylene with their lower creep strain and permanent deformation values. More specifically, among the nanocomposites, 3£¿wt% organophilic halloysite nanotube loaded nanocomposite with HNT/SEBS-g-MA ratio of 1/3 and co-continuous like morphology not only exhibited an effective damping over a wide range of temperature (from £¿70¡æ to 50¡æ) but also showed relatively higher storage moduli at low temperature region together with lower permanent creep deformation as compared to neat polypropylene. As a result, the HNT/SEBS-g-MA masterbatch in 1/3 ratio was found to be the most suitable in polypropylene blend nanocomposites. It may be advantageous for polypropylene nanocomposite based applications where high damping/toughness at low temperature conditions and high dimensional stability under load are desired
%K Polymer nanocomposite
%K polypropylene
%K silica nanotube
%K mechanical properties
%K thermoplastic elastomer
%U https://journals.sagepub.com/doi/full/10.1177/0021998318794267