The four-ball tester was used in this analysis to demonstrate the lubricity of tire pyrolysis oil (TPO). tribological performance compared with diesel fuel (DF) and their blends, DT10 (TPO 10%, Diesel 90%) DT20 20%, 80%). A scanning electron microscope (SEM) investigate wear scar. In contrast fuel, TPO demonstrated better antiwear behaviour terms higher load-carrying capacity. DT10, DT20, TPO’s...

There is a need to improve conventional polyolester lubricants that are currently being evaluated as the optimal refrigeration base oil for the alternative refrigerants R41 OA and R407C, which are expected to be designated as the replacement ofHCFC 22. Prior studies show that the conventional polyolesters and other lubricants have poor hydrolysis and solubility. This paper is an introduction to...

Triazinedithiol polymeric nanofilm was prepared on a pure aluminum surface by electrochemical polymerization of AF17N. The mechanism of the process was proposed and electrochemical polymerization parameters were investigated. The triazinedithiol polymeric nanofilm had notable lubricity, high dielectric property and superhydrophobic property due to the allyl and fluoro alkyl groups in the AF17N ...

In this work, real-time coefficient of friction (COF) analysis, in conjunction with a new method for approximating the Sommerfeld Number, is used to determine the extent of normal and shear forces during chemical mechanical planarization (CMP) and to help identify the tribology of the system. A new parameter termed the ‘tribological mechanism indicator’ is defined and extracted from the resulti...

Rationale for Fat Replacers As a food component, fat contributes key sensory and physiological benefits. Fat contributes to flavor, or the combined perception of mouthfeel, taste, and aroma/odor (Ney, 1988). Fat also contributes to creaminess, appearance, palatability, texture, and lubricity of foods and increases the feeling of satiety during meals. Fat can also carry lipophilic flavor compoun...

We introduce a lateral atomic force microscopy (AFM) method to measure the hydrodynamic drag force acting on a microscopic emulsion droplet moving parallel to a flat surface. A tetradecane oil droplet formed in an aqueous solution of sodium dodecylsulfate was attached to a V-shaped atomic force microscopy cantilever, and lateral hydrodynamic interactions between the droplet and a flat glass sur...

This paper reports the development of a lead-free brush material for high-load starter motors. These brushes can be used in much more extreme conditions --at a PV-value (the product of the brush contact pressure and sliding velocity) approximately three times that of conventional starter motor brushes, and double the electrical current density. The major technical requirement for this developme...

Living human corneal epithelial cells have been probed in vitro via atomic force microscopy, revealing the frictional characteristics of single cells. Under cell media, measured shear stresses of 0.40 kPa demonstrate the high lubricity of epithelial cell surfaces in contact with a microsphere probe. The mechanical properties of individual epithelial cells have been further probed through nanome...

Silicone oils have wide range of applications in personal care products due to their unique properties of high lubricity, non-toxicity, excessive spreading and film formation. They are usually employed in the form of emulsions due to their inert nature. Until now, different conventional emulsification techniques have been developed and applied to prepare silicone oil emulsions. The size and uni...

Introduction. Modification of surfaces with covalently grafted polymer brushes is a widely used technique to tailor surface properties such as wettability, biocompatibility, corrosion resistance and lubricity. In the current work, surface-tethered poly(methyl methacrylate) (PMMA) layers were produced via surface-initiated photoiniferter-mediated photopolymerization (SI-PMP). Photoiniferters, ba...