Synthesis of ethylenediaminetetraacetic acid disodium salt nanoparticles in the lamellar liquid crystal and application to lubrication

The ethylenediaminetetraacetic acid disodium salt (C10H14N2O8Na2) nanoparticles were prepared by replacing water with 3 wt% C10H14N2O8Na2 aqueous solution in the lamellar liquid crystal (LLC) of the Triton X-100/n-C10H21OH/H2O system. The particle size is about 5–6 nm with relatively narrow distribution. The existing of the C10H14N2O8Na2 nanoparticles in the lamellar liquid crystal can improve the lubrication properties of the lamellar liquid crystal of Triton X-100/n-C10H21OH/H2O system.