Abrasion properties of self-suspended hairy titanium dioxide nanomaterials

• Published in: Applied nanoscience Vol. 7; no. 8; pp. 691 - 700
• Main Authors: Zhang, Jiao-xia, Liu, Si, Yan, Chao, Wang, Xiao-jing, Wang, Lei, Yu, Ya-ming, Li, Shi-yun
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.11.2017; Springer Nature B.V
• Subjects: Abrasion; Antifriction; Chemistry and Materials Science; Crosslinking; Hybrid systems; Lubricants; Lubricants & lubrication; Lubrication; Materials Science; Membrane Biology; Nanochemistry; Nanoelectromechanical systems; Nanomaterials; Nanoparticles; Nanotechnology; Nanotechnology and Microengineering; Organic compounds; Original Article; Polyethylenes; Properties (attributes); Titanium dioxide; Titanium oxides; Liquid-like behavior; Self-suspended hairy nanomaterials; Friction and wear properties; nanoparticles; TiO
• ISSN: 2190-5509; 2190-5517
• DOI: 10.1007/s13204-017-0607-6

Considering the excellent solubility of pyrrolidone ring organic compounds, the synthesized N -(trimethoxysilyl) propyl- N -methyl-2-pyrrolidone chlorides was tethered onto titanium dioxide (TiO 2 ) nanoparticles to improve dispersion of TiO 2 , and then polyethylene oxide (PEO) oligomer through ion exchange embraced the tethered TiO 2 to obtain a novel self-suspended hairy TiO 2 nanomaterials without any solvent. A variety of techniques were carried out to illustrate the structure and properties of the self-suspended hairy TiO 2 nanomaterials. It was found that TiO 2 nanoparticles embody monodispersity in the hybrid system though the “false reunion” phenomenon occurring due to nonpermanent weak physical cross-linking. Remarkably, self-suspended hairy TiO 2 nanomaterials exhibit lower viscosity, facilitating maneuverable and outstanding antifriction and wear resistance properties, due to the synergistic lubricating effect between spontaneously forming lubricating film and nano-lubrication of TiO 2 cores, overcoming the deficiency of both solid and liquid lubricants. This make them promising candidates for the micro-electromechanic/nano-electromechanic systems (MEMS/NEMS).