Types of Bonded Film

The most straightforward technique for producing a thin uniform adherent coating is by the use of an adhesive binder, and bonded coatings were introduced very early in the modern development of molybdenum disulphide technology. They are probably now the most widely used form of molybdenum disulphide lubricant, and as long ago as 1968 Gresham estimated that over 95% of the solid lubricants commercially used were resin-bonded. 

The earliest binders were those which were already well known, either in adhesives or paints. They included corn syrup, glycerol, ethylene glycol and dextrose (all dispersed in water), asphalt-based varnish (in naphtha), and silicone varnish (in xylene). The range of binders which has been studied has since been extended enormously, to include lacquers, polymers, soluble salts, fused salts, fusible oxides and fluorides, ceramics and metals, and a number are listed in Table 11,1. 

Acrylics Tungsten diselenide Isopropyl alcohol Toluene 

Organic Heat-Cured Inorganic Amyl acetate 

Sodium borate Titanates Inorganic ceramic Boric oxide Silica Alumina Calcium fluoride Metal Silver Nickel Gold Tantalum Indium/lead  

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