Carbon nanotubes (CNTs) wrapped with layered double hydroxide (LDH- w -CNTs) were facilely obtained
through in situ introduction of CNTs into the hydrothermal reaction system of LDH, with the goal of
combining their unique physical and chemical characteristics to meet new advanced applications.
Morphological observations indicated that LDH lamellae enwrapped the surface of CNTs and the
wrapping degree was dependent on the functionalization of CNTs. 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.

More:
The preparation of layered double hydroxide wrapped carbon nanotubes and their application as a
flame retardant for polypropylene