In this study, an easy method is presented to prepare a polymer based multi-walled carbon nanotube (MWNT) composite. First, MWNTs grafted to n-hexadecyl bromide (MWNTs-g-C 16 ) were prepared using an esterification reaction of carboxylate salt on the MWNTs' surface and a bromine group consisting of n-hexadecyl bromide in the presence of a phase-transfer reagent in water. Subsequently, a composite material of PVC/MWNTs-g-C 16 was prepared by melt blending with a series of dissolvable MWNTs-g-C 16 aided by heat stabilizers and lubricants. Thermogravimetric analysis of the MWNTs-g-C 16 showed a weight percentage of attached alkyl chains as high as 35.77 wt%, and a TEM image proved that the soluble MWNTs-g-C 16 were well dispersed randomly in a matrix of polyvinyl chloride (PVC). Solar-thermal conversion performances of the PVC/MWNTs-g-C 16 composites were studied, and the composites exhibited excellent light absorption properties. This property is attributed to the optical absorption characteristics of MWNTs. The PVC/MWNTs-g-C 16 composite material exhibits excellent mechanical properties, and could be used as solar collectors or as solar anti-icing and deicing materials.
In this study, an easy method is presented to prepare a polymer based multi-walled carbon nanotube (MWNT) composite. First, MWNTs grafted to n-hexadecyl bromide (MWNTs-g-C 16 ) were prepared using an esterification reaction of carboxylate salt on the MWNTs' surface and a bromine group consisting of n-hexadecyl bromide in the presence of a phase-transfer reagent in water. Subsequently, a composite material of PVC/MWNTs-g-C 16 was prepared by melt blending with a series of dissolvable MWNTs-g-C 16 aided by heat stabilizers and lubricants. Thermogravimetric analysis of the MWNTs-g-C 16 showed a weight percentage of attached alkyl chains as high as 35.77 wt%, and a TEM image proved that the soluble MWNTs-g-C 16 were well dispersed randomly in a matrix of polyvinyl chloride (PVC). Solar-thermal conversion performances of the PVC/MWNTs-g-C 16 composites were studied, and the composites exhibited excellent light absorption properties. This property is attributed to the optical absorption characteristics of MWNTs. The PVC/MWNTs-g-C 16 composite material exhibits excellent mechanical properties, and could be used as solar collectors or as solar anti-icing and deicing materials.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.