Anti-abrasion

Anti-abrasion layer Blue-sensitized silver halide layer... 

Underbody anti-abrasion coating, mud flaps, anti-stone damage protection. .. 

Hardness and anti-abrasiveness AFM probe, MEMS (micro-relays, acceleration sensors, micro-gripper), coating on surgery scalpels, coating on cutting tools, tab tools... 

A few case histories of the use of rubber lining in anti-abrasive applications are given below. 

The anti-abrasive or anti-corrosive rubber linings are applied to the metal surface by adopting different kinds of bonding systems such as ebonite bonding, chemical adhesive bonding or self-vulcanising cement bonding. 

Thin solid films are layers that are present on a surface and have their top interface exposed to the environment Their extreme thinness in comparison with their lateral dimensions makes them systems that are infinite in two dimensions and are confined between an infinite gaseous phase and an infinite solid phase in the third one. As a result the global property of a layer is a combination of bulk and interface properties thus, one has to take into accoimt the thickness of the layer and the nature of the substrate when designing a coating for a specific application. Thin layers can be used for various purposes, depending on their surfece and/or bulk intrinsic properties. They can be dense, porous, patterned, multilayered, composite, and so on. Sol-gel films can be found in many different application domains such as optics (e.g., antireflection, self-cleaning, smart windows, and conductive transparent layers), electronics (e.g., microfabrication, low-/ , and self-assembled monolayers (SAMs)), protection (e.g., anticorrosion, anti-abrasion, and antistatic), and analysis (e.g., selective sensors). In most of these applications, the function must be identical on the whole surface of the substrate, and thus the thickness has to be controlled as much as possible and must be as uniform as possible. 

Anti-abrasion, anti-scratch Fibre, containers, displays... 

Gong Q, Cao H and Zhao S, Development of nano-scale AI2O3 filled transparent and anti-abrasion compound paint , Mod Paint Finish 2004 (2) 2-7 (in Chinese). 

As of 1991 in the United States, OTC antiacne preparations may contain only a few active dmgs, for example, sulfur [7704-34-9] resorcinol acetate [102-29-4], resorcinol [108-46-3], salicylic acid [69-72-7], and some combinations (52). OTC anti-acne constituents maybe included in a variety of conventional cosmetic preparations, which then become OTC dmgs. These include lotions, creams, solutions, facial makeups, facial cleansers (including abrasive cleansers), and astringents. Products must contain the specified dmgs at the designated concentrations. Compositions of antiacne products have beenpubhshed (53). 

Abbreviations Corr. = resistance to corrosion Frici. B low friction, anti-galling Hard = hardness, resistance to abrasion Th.corr. = resistance to thermal corrosion (e.g. sulphidation)... 

Topical non-steroidal anti-inflammatory drugs (NSAIDs) decrease pain from corneal abrasion. Available ocular NSAIDs are diclofenac 0.1%, ketorolac 0.5%, nepafenac... 

Supporting anti-pilling Non-slip finishes Fluorocarbon finishes, if not too smooth (they may concentrate the anti-pilling products near the fibre surface) Flame retardants (large amounts are often stiffening, crosslinkers reduce the tear and abrasion strength)... 

Calder LA, Balasubramanian S, Fergusson D.Topical nonsteroidal anti-inflammatory drugs for corneal abrasions meta-analysis of randomized trials.Acad Emerg Med 2005 12 467-473. 

Silicone-based softener. Exhibits extreme resistance to yellowing at elevated temperature. Produces high increases in fabric and seam tear strength and abrasion resistance. Excellent softener for durable anti-stats, i.e., ASTONS. Facilitates high speed sewing by reducing needle severance problems. No build-up on equipment. 

Corrosion can take place uniformly over a rubbed surface or selectively at surface inclusions, grain boundaries and between dissimilar materials, etc. For the former case, a problem results only if corrosion is excessive. Limited corrosion is necessary for anti-wear and extreme pressure protection. Selective corrosion can weaken surface structures and initiate fatigue. Moreover, abrasion is implicated in the promotion of corrosive wear since abrasive particles remove soft protective, corrosively formed, reaction films. 

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