Properties of LDPE/POE-g-MA Composites Containing Multiwall Carbon Nanotubes Modified by Fumed Silicon Dioxide.

Low density polyethylene (LDPE)/maleic anhydride grafted polyolefin elastomer (POE-g-MA) with multiwall carbon nanotubes (MWCNTs) wrapped by fumed silicon dioxide (SiO2) were prepared by melt mixing. The results revealed that SiO2 improved the dispersion of MWCNTs on matrix. SiO2 and MWCNTs both had a heterogeneous nucleation effect on matrix and the crystallinity of composites increased with adding SiO2, MWCNTs and MWCNTs/SiO2. The addition of MWCNTs modified by SiO2 increased tensile strength and elongation at break of composites compared with composite with raw MWCNTs. MWCNTs had a strong absorption effect, leading to an obvious decrease in reflectance at 1060 nm of composites. [ABSTRACT FROM AUTHOR]