Localization of MWCNTs in PET/LDPE blends

► MWCNTs preferentially locate to the PET phase in immiscible PET:LDPE blends. ► MWCNTs alter the crystallization behavior of the PET blend component only. ► MWCNTs alters the melt viscosity of the blends making MWCNT transfer, dispersion and particle coalescence difficult. ► For PET:LDPE blends, wetting coefficients can provide a guide to predict localization of MWCNTs.