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LB Film

Nov 18, 2016

With the continuous development of high-tech, ultra-thin film technology has been more and more attention. "Langmuir Blodgett" technology is a very important way to produce ultra-thin films. LB technology is the formation of the water surface in accordance with a certain form of monolayer transferred layer by layer to the solid surface technology. The resulting monolayer or multilayer film is referred to as a LB film. LB films have an oriented lamellar structure at the molecular level. The molecules that make up the LB film are amphiphilic, i.e. have both hydrophilic and hydrophobic moieties, such as fatty acids. LB films have three combinations: X-type LB film and hydrophobic surface contact with the bottom plate is vertically through the L film down into the obtained. The Z-type, in contrast to the X-type, is joined by the hydrophilic surface to the substrate surface. Y-type is composed of X-type and Z-type alternating composition. In order to overcome the drawbacks of the thermal instability of the LB film, many methods have been devised, but thermal stability is difficult to be improved by the presence of thermally labile long-chain hydrophobic moieties.