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   Carbon nanotubes-based nanohybrids for multifunctional nanocomposites  
   
نویسنده arrigo r. ,bellavia s. ,gambarotti c. ,dintcheva n.t. ,carroccio s.
منبع journal of king saud university - science - 2017 - دوره : 29 - شماره : 4 - صفحه:502 -509
چکیده    In the present work,nano-hybrids based on carbon nanotubes (cnts) bearing immobilized,either through covalent linkage and physical absorption,commercial anti-oxidant molecules have been formulated and used as nanofillers in ultra high molecular weight polyethylene (uhmwpe),aiming at preparing multifunctional nanocomposites. the effective immobilization of the anti-oxidant molecules has been probed by spectroscopic and thermogravimetric analyses. the study of the morphology and the rheological behaviour of the nanocomposites show that the immobilization of anti-oxidant molecules onto the cnts surface is beneficial for the state of the polymer/nanoparticles interfacial region. additionally,the study of the nanocomposites thermo-oxidative behaviour reveals that the nano-hybrids are able to exert a remarkable anti-oxidant action which is related to the strong interactions established between the anti-oxidant molecules and the cnts,resulting in the formation of structural defects onto the cnts surface and in the consequent amplification of the intrinsic cnts radical scavenging activity. © 2017 king saud university
کلیدواژه CNTs; Nanocomposites; Rheological behaviour; Scavenging activity; Thermo-oxidation; UHMWPE
آدرس dipartimento di ingegneria civile,ambientale,aerospaziale,dei materiali,università degli studi di palermo,viale delle scienze,ed. 6,palermo,italy,dipartimento di scienza applicata e tecnologia,politecnico di torino,viale teresa michel 5,alessandria, Italy, dipartimento di ingegneria civile,ambientale,aerospaziale,dei materiali,università degli studi di palermo,viale delle scienze,ed. 6,palermo, Italy, dipartimento di chimica,materiali ed ingegneria chimica “g. natta”,politecnico di milano,piazza l. da vinci 32,milano, Italy, dipartimento di ingegneria civile,ambientale,aerospaziale,dei materiali,università degli studi di palermo,viale delle scienze,ed. 6,palermo, Italy, consiglio nazionale delle ricerche – imm s.s catania (università),via s. sofia 64,catania, Italy
 
     
   
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