Abstract
Inorganic-organic hybrid nanoparticles molecular deposition films were fabricated by extending the method of nucleation and growth of particles in polymer assemblies. Poly (diallyldimethylammonium chloride) (PDDA) and poly (styrenesulfonate) sodium salt (PSS) were applied as polycation and polyanion respectively. At first, PDDA/PSS films were obtained by alternately depositing PDDA and PSS on the cleaned substrate with molecular deposition (MD) method. Then, follow’s alternately dipped the precursor polyelectrolyte multilayer MD films into AgNO3 and H4SiW12O40 aqueous solutions. Repeating the above synthesis process, Ag4SiW12O40 nanoparticles were synthesized in the polyelectrolyte multilayer films in-situ. UV-vis absorption spectra indicate that the Ag4SiW12O40 nanoparticles grew gradually in the synthesis process. The structure and nanotribological properties of hybrid nanoparticles multilayer films were analyzed by atomic force microscope (AFM) and the antiwear life was analyzed by micro-friction and wear test machine. It was found that these films had small friction force and high antiwear life. The MD film had best tribological properties when the cycle number is six. Nanoparticles within the MD films can enhance antiwear life of MD films attributed to nanoparticles possess load-carrying capacity, and decrease the mobility of the polymer chain segments which can undergo reversible shear deformation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
