Coating temperature effects

Li, J. and Carr, P.W., Evaluation of temperature effects on selectivity in RPLC separations using polybutadiene-coated zirconia, Anal. Chem., 69 (11), 2202,... 

Deep shades of maroon tend to form water spots in certain binder systems, especially in media which are based on acrylic resin. More or less distinctive light spots appear on the coating. The effects that cause this phenomenon remain to be elucidated. Factors such as long-term weathering at elevated temperature, U V radiation, and the presence of demineralized water probably cause reduction and solvation effects within the coating. Products are available which are much less susceptible to these agents. Rub-out effects, especially flocculation, may also present problems in various binder systems. Special-purpose grades are therefore available which are more stable to flocculation. 

MWCNTs have been tested to reinforce various matrices because they have many unique mechanical and physical properties.14,15 However, these nanotubes become corroded with metals (such as iron, cobalt, and aluminum) at temperatures above 850°C. These shortcomings limit the applications of MWCNTs as nano-reinforcements. The SiC coating can effectively protect the diamond from molten cobalt, thus allowing dense SiC-coated diamond-dispersed cemented carbide composites to be successfully fabricated at lower pressures. If MWCNTs can be coated with the same SiC layer, more stable MWCNTs would be produced and expected to be used as nano-reinforcements for various matrices. The development of SiC-coated MWCNTsAVC-Co composites has potential to extend functions of both MWCNTs and WC-Co. 

Temperature Effect on Reinforced Plastics. Often, fibers and polymer matrix have different coefficients of thermal expansion. After painting the liquid coating flows... 

Temperature effects on coating response behavior are varied. For reversible equilibrium-based sensors, increased temperature results in decreased sensitivity. An example of this tonperature-dependent response behavicM- is provided in Figure S.4 for a PIB-coated SAW device exposed to dichloroediane (DCE) vapor. From Figure 5.4(a) it can be seen that the response (in Hz) increases steadily as the concoitration of DCE increases, but that the sltqte of the response curve decreases with increasing temperature. This decreased sensitivity is due to the Arrhenius-type decrease in the equilibrium constant, K (see Sections 5.4.1 and... 

Fig. 21.11. Oil-sensitive MIPs sensitivity increases with the layer thickness of the QCM coatings. Sensor effects have been gathered by differential measurements between uncoated and MIP-coated electrodes (difference eliminates viscosity and temperature effects).

Fig. 4.22 Elastic moduli vs. temperature obtained by AFM nanoindentation measurements on various alkyd-based coatings (a) effect of oil number, (b) time evolution of modulus after application of the coating. (Reprinted with permission from [47].)...

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