sentences:  Recent developments include interest in using carbon nanotubes (CNTs) to reinforce polymer-based nanocomposites.CNTs can be grown or deposited on the fibres or added into polymer resins as a matrix for FRP structures.Using nanoscale CNTs as filler instead of traditional microscale filler (such as glass or carbon fibres) results in CNT/polymer nanocomposites, for which the properties can be changed significantly at very low filler contents (typically < 5 wt%).