Materials future coatings

Abstract Already many lightweight membrane structures are in existence, and an increasing number of them are planned for the future. In this chapter different materials and coatings for texthe membranes are introduced and discussed, which have to fulhl a wide range of properties. The main task of the membranes is to act as a barrier function against water, IR- and UV-radiation and excessive heat, and they should provide, amongst others, mechaiucal stabhity, light transmission and resistance to environmental impact. 

The development of bulk materials, stable coatings and fabrication techniques for these to withstand chemical attacks on the fluid-contacting surfaces is a challenge for the near future. 

This chapter describes the major developments in corrosion-resistant materials and coating technologies and their application in the last 30 years in waste-to-energy plants, the corrosion mechanisms of alloys, the deterioration mechanisms of spray coating layers, and future prospects for the development of corrosion-resistant materials and coatings. 

The future for amino resins and plastics seems secure because they can provide quaHties that are not easily obtained in other ways. New developments will probably be in the areas of more highly specialized materials for treating textiles, paper, etc, and for use with other resins in the formulation of surface coatings, where a small amount of an amino resin can significantly increase the value of a more basic material. Additionally, since amino resins contain a large proportion of nitrogen, a widely abundant element, they may be in a better position to compete with other plastics as raw materials based on carbon compounds become more costly. 

The pursuit of further miniaturization of electronic circuits has made submicrometer resolution Hthography a cmcial element in future computer engineering. LB films have long been considered potential candidates for resist appHcations, because conventional spin-coated photoresist materials have large pinhole densities and variations of thickness. In contrast, LB films are two-dimensional, layered, crystalline soHds that provide high control of film thickness and are impermeable to plasma down to a thickness of 40 nm (46). The electron beam polymerization of CO-tricosenoic acid monolayers has been mentioned. Another monomeric amphiphile used in an attempt to develop electron-beam-resist materials is a-octadecylacryUc acid (8). 

Finally, one development results from returning to a basic idea from the dawn of the lead-acid battery, wherein the functions of support for the positive active material and of the separator are combined into one component the gauntlet separator [84] consisting of a coarsely porous, flexible support structure coated with micropo-rous polyethylene material for separation. The future has to show whether this approach will be able to meet all demands. 

The utilisation of RCP as secondary raw material has to find a quantitative risk assessment in the future to establish meaningful limit values as basis for the development of e.g. elimination processes or barrier coatings. 

Carbon coated Si-based anode materials were successfully synthesized by chemical vapor deposition methods. Coated materials performed well during the coin cell testing. Future work on this section... 

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