Preparation of Layered Double Hydroxide Wrapped Carbon Nanotubes and its application as a flame retardant for polypropylene
writer：B. Du, Z. Fang*
keywords：Carbon nanotubes; layered double hydroxides; ζ-potential; flame retardancy; polypropylene
source：期刊
specific source：Nanotechnology, 2010.8, 21: 315603
Issue time：2010年
Carbon nanotubes wrapped with layered double hydroxide (LDH-w-CNTs) was facilely obtained through in-situ introducing CNTs into the hydrothermal reaction system of LDH, with the goal of combining their unique physical and chemical characteristics to meet new advanced applications. Morphology observation indicated that LDH lamella enwrapped on the surface of CNTs and the wrapping degree was dependent on the functionalization of carbon nanotubes. ζ-potential measurements showed that the interaction between the positive charge of LDH and the negative charge of CNTs was the main driving force of the wrapping process. Both hybrids led to a reduction in the peak heat release rate (PHRR) of polypropylene, indicating that they could confer better flame retardancy on polypropylene with respect to LDH and CNTs.