Polycarbonate substrate

Multilayered structures play an important role in the production of, e.g., biomaterials, catalysts, corrosion protectors, detectors/diodes, gas and humidity sensors, integral circuits, optical parts, solar cells, and wear protection materials. One of the most sophisticated developments is a head-up-display (HUD) for cars, consisting of a polycarbonate substrate and a series of the layers Cr (25 nm), A1 (150 nm), SiO, (55 nm), TiO, (31 nm), and SiO, (8 nm). Such systems should be characterized by non-destructive analytical methods. 

The subsequent thermal processes201 give rise to diffusion of the polycarbonate substrate into the dye layer, decomposition of the dye, and mechanical deformation of the film due to thermal contraction. Each of these processes can contribute to a reduction in the optical path length of the low-intensity readout beam. The optics within the detector are designed such that phase differences due to the optical path length differences cause the light intensity falling on the detector to be reduced when the beam passes over a recorded mark .196... 

The tabulated results for all samples tested can be found in Tables VIII and IX, with Figures 3 and 4 depicting the results graphically. Non-flaming conditions produce the most dramatic results. For the polycarbonate substrates all coatings except zinc increase the amount of smoke produced. Zinc shows... 

Lindroos, S. Kanniainen, T. Leskela, M. 1996. Zinc sulfide thin films grown by SILAR on poly(vinyl chloride) and polycarbonate substrates. /. Mater. Chem. 6 1497-1500. 

Another example of thin films showing metallic transport properties down to liquid helium temperature is 0-(BET-TTF)2Br.3H2O, where bilayers are grown on transparent polycarbonate substrates (Mas-Torrent et al, 2001). The bilayers are... 

Fig. 18 Percent haze vs. number of test cycles for Taber tested uncoated polycarbonate and DLC-coated polycarbonate substrates.

K. Aslan, P. Holley, and C. D. Geddes. Metal-enhanced fluorescence from silver nanoparticle-deposited polycarbonate substrates Journal of Materials Chemistry, 2006, 16, 2846-2852. 

Fig. 3 Left Microfluidic chip for lEF/SDS-PAGE. Center Chip used for the 2D electrophoretic separation. The chip was made from a polycarbonate substrate from a Si template via hot embossing. Right Paths for the electrokinetic transfer of focused protein bands from the first (lEF) into the second (SDS-PAGE) dimension. Adapted with permission from Li et al. [79]...

Confocal Raman microspectroscopy was used to characterise the chemical composition of clearcoats in paint systems. Weathered and unweathered samples of isolated acrylic/melamine and acrylic/urethane clearcoats, polyester urethane clearcoats in weathered and unweathered samples of a complete paint system on plastic, and UV light cured acrylic clearcoats on polycarbonate substrates were studied (149). 

Taiyo Yuden, Taiyo Yuden Recycling Business of Polycarbonate Substrates for Optical Disc Launched, press release, Oct. 27, 2004. 

Fig. 7.70 Maximum tensile stress S in ceramic layer versus effective time to radial fracture tR for as-polished Y-TZP and alumina plates bonded to polycarbonate substrates. Data represent individual tests at constant monotonic stressing rates (unfilled symbols) and in cyclic loading at 10 Hz (filled symbols). Solid lines are data fits in accordance with slow crack growth relations. Arrows indicate runouts [35]. With kind permission of Elsevier...

Latella, B.A., Triani, G., Zhang, Z., Short, K.T., Bartlett, J.R., Ignat, M., 2007. Enhanced adhesion of atomic layer deposited titania on polycarbonate substrates. Thin Solid Films 515, 3138-3145. 

Fig. 19.5 Logarithm of the reduced conductivity vs. aging time for air-aged conductive PEDOT thin layer laid on polycarbonate substrate. Iron(III) tris-p-toluenesulfonate (Fe CTos) ) doped poly(3,4-ethylenedioxythiophene) (PEDOT-Fq Tos ) thin layer had thickness of 500 nm (Reprinted with permission from Rannou and Nechtschein 1999, Copyright 1999 Elsevier)...

Free-standing films of desirable thickness and/or porosity have been prepared and developed for gas-gas separations and as ion sieves [438-40]. In this case, by appropriate selection of the dopant anion, electrode-posited PPy films can be made to pass some ions several decades more efficient than other methods. Another possibility to construct polypyrrole-based membranes is to combine them with a second conventional membrane to improve performance. Thus PPy films have been deposited on an alumina or polycarbonate substrate to form durable permeselective membranes for gas and liquid separation [441,442]. 

C.H. Li, and G.L Wilkes, The mechcmism for 3-aminopropyltriethoxysilane to strengthen the interface of polycarbonate substrates with hybrid organic-inorganic sol-gel coatings. Journal of Inorganic and Organometallic Polymers, 7 (4), 203-216,1997. 

Figure 10.7 Schematic representation of the immunosensor proposed by Sanchez and co-workers, (a) Top view of the MWCNT/PSf screen printed device, (b) structure of MWCNT/PSf/IgG composite, (c) Cross section of the biosensor after incubation with anti-IgG-HRP antibody. (A) polycarbonate substrate, (B) insulator layer, (C) MWCNT/PSf. Reprinted with permission from Sanchez S, Pumera M, Fibregas E. Carbon nanotube/ polysulfone screen-printed electrochemical immunosensor. Biosensors and Bioelectronics 2007 23 332--40, 2007 Elsevier, BV.

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