Polypropylene composites having carbon nanotubes and powder styrene-butadiene rubber

Vulcanized carbon nanotubes(CNTs) and styrene-butadiene rubber(SBR) composite powders were added to polypropylene(PP) using the melting mixing method to obtain modified composites with better properties.The powders were cross-linked using electron beam radiation and prepared using spray drying.Test results show that with an SBR loading(mass fraction to pure PP) of 15%,CNTs loading of 2%,and sodium benzoate loading of 2%,the impact strength is improved by 120%,tensile strength is improved by 6%,elongation at break is improved by 55%,and flexural strength of the modified PP is improved by 20%,compared with pure PP.