Robust superhydrophobic and self-lubricating PTES-TiO₂@UHMWPE fabric and its tribological properties

Abstract

Self-lubricating UHMWPE was treated by air-plasma, and TiO2 nanoparticles were grafted onto the fabric by an in situ growth method.

Design of a Janus F-TiO2@PPS Porous Membrane with Asymmetric Wettability for Switchable Oil/Water Separation

“…28 The resulting hydrolyzed PFDS is directionally arranged between water and the tetrachloromethane solution driven by the surface segregation and adheres on the TiO 2 surface through a hydrogen bond. After dehydration, the perfluoroalkyl chains incorporate onto the membrane surface 29 and a hydrophobic layer consisting of oligomeric and polymeric siloxane aggregates with cross-linked network structures is formed on the membrane surface. It is worth noting that the water−oil interfacial reaction can prevent the TiO 2 @PPS membrane from being intruded by the tetrachloro-methane solution under capillary effect, which ensures that the grafting reaction mainly takes place on the surface of the membrane.…”

Effects of solid lubricants on the tribological behavior of steel‐backed UHMWPE fabric composites

“…As the sliding velocity increased, SWR initially increased and then decreased due to wear particle accumulation. Li et al 40 deposited TiO 2 nanoparticles on air plasma‐treated pristine UHMWPE fabric surfaces by a hydrothermal reaction and then further modified them using 1H,1H,2H,2H‐perfluorodecyltriethoxysilane (PTES). Examination of tribological performance showed that the fabric and filler acted synergistically and these composites exhibited excellent antiwear properties, with the best friction coefficient at 0.05, being influenced by abrasive particles from cut fibers as well as TiO 2 content.…”

Rapid construction of superhydrophobic fabric coating assisted with ‘Tyndall Effect’

“…Inspired by 'lotus effect', the construction of concave-convex micro-nano structures is the key to the superhydrophobicity of coating. At present, various methods are available to prepare superhydrophobic coatings [6][7][8][9][10][11][12], such as self-assembly, template method, phase separation, nano-doping technique [13], electrochemical spinning, sol-gel method [14] and chemical etching. However, some of these methods are complicated in operation, some are restricted by external environment (temperature, humidity or air flow rate), some requires harsh experimental conditions, and some are even not suitable for fabric materials, which limit the development and application of superhydrophobic fabric coating [15][16][17][18][19][20].…”