Self-sealing coatings

Coating and binding products used for carpet backings, adhesives, adhesive tapes, self-seal envelopes, etc. 

The encapsulation process for ChLC is mainly attributed to its transport and optical properties [15]. Firstly, since viscosity of pure ChLC is close to that of water, its fluidity prevents ChLC from being coated on flexible substrates. Secondly, when a cholesteric liquid crystal is pressed, the flow generated inside makes the displayed image erase. Therefore, droplet dispersions by encapsulation act as a protector for its bi-stability and optical properties. The additional advantage is that encapsulated cholesteric liquid crystals are self-sealing the materials confined to the droplets cannot flow through an interface of the droplets. 

Ceral 165 Ceral CK Ceral LE Ceral MA Ceral ME Ceral MET Ceral MEX Ceral ML Ceral TN emulsifier, seafood Soda Phos (FG) emulsifier, seal coatings lndulin ISE emulsifier, sealants Dapro DF 7005 Dapro DF 7010 Isode-cyloxypropylamine acetate Niaproo Anionic Surftictant4 emulsifier, sec. oil recovery Duoquad T-50 Tallowdimonium propyl-trimonium dichloride Triton RW-20 Triton RW-50 Triton RW-150 emulsifier, selenium sulfide Dihydrogenated tallow phthalic acid amide HallSta TAB-2 Flake emulsifier, self-crosslinking latexes Aerosol 501... 

Aluminide and sUicide cementation coatings such as TaAl on tantalum and MoSi2 on molybdenum oxidize at slow rates and possess some inherent self-repair characteristics. Fine cracks that appear and are common to these coatings can be tolerated because stable, protective oxides form within the cracks and seal them. Thermal cycling, however, accelerates faUure because of thermal expansion mismatch that ultimately dismpts the protective oxide coating. 

The ratio of the oxide formed to the metal consumed is called the Piling and Bedworth number. When the number is over 1, the metal rusts. Aluminum and magnesium are the best examples of metals that do not rust because a protective oxide coat forms that is, they have a Piling to Bedworth number of 1. Scratch an aluminum ladder and notice a bright fissure forms and quickly self-coats. The heat release in the sealing aluminum oxide is dissipated to the ladder structure. 

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