Coatings on polymers

Analysis of Plasma Deposited Flurocarbon Coatings on Polymer Films and Wool Fibers... 

Abstract. Liquid phase deposition methods are a useful way to create mineral oxide films from aqueous solution under near-ambient conditions. These approaches have been applied to the creation of ceramic coatings on polymers and on polymer-matrix composites. Control has been achieved over the adherence and crystallinity of the solution-deposited thin films based on controlling the composition of both the deposition solution and the substrate surface. The challenge of depositing such films from water, while minimizing film cracking has also been addressed. Crack-free ceramic films of up to 200 nm thickness have been achieved on a variety of polymer substrates. 

One of the most common ways to create a HAp coating on polymer nanofibers is immersing them in SBF, which has ion concentrations similar to that of human blood plasma (Table 5) [131]. Though SBF immersion is often utilized as a method... 

Preformed metal oxide nanoparticles have been successfully coated on polymer spheres by the use of the layer-by-layer method. This involves the coating of the template spheres with polyelectrolyte layers, which are oppositely charged to the metal oxide nanoparticles to be deposited. Alternating the polyelectrolyte and nanoparticle deposition has led to the successful formation of silica [67,68] and titania [69] coated PS spheres. Using this approach preformed crystalline nanoparticles can be deposited on the organic spheres and crystalline hollow spheres can be obtained without the need of calcination. On removal of the template and the polymer interlayers by heating, hollow spheres of the inorganic material can be obtained [68-70]. This procedure is described in detail in the chapter by Dr Frank Caruso. 

Chemically deposited non stoichiometric cuprous sulfide films (Cui.gS) have been used as conducting layers as reported by Grozdanov et al. [50]. The films, deposited at 40 °C, present a resistivity of 2.10 Q.cm. In addition they present optical transmission values between 50 and 70% in the visible range for a 0.12 pm thick film. These properties have been used for ohmic contacts to ferroelectric films and transparent conducting coatings on polymers. These films can also be used as chemical sensors for Cu + ions. Note that due to the low deposition temperature polymer substrates can be used [61]. 

However, NS-Ti02 coating on polymer substrates is still in its early stages of development compared to the other substrates. Polymers,... 

Raman spectroscopy has been limited in its applications by one major point -fluorescence. As a phenomenon, fluorescence is approximately 10 - 10 times stronger than Raman scattering. Often, when one tries to excite a Raman spectrum, the fluorescence is the only phenomenon observed. Trace impurities, coatings on polymers, additives, etc., may fluoresce so strongly that it is impossible to observe the Raman spectrum of a major component. The use of UV or near-ER. excitation has proved to be effective in reducing this problem. Its main reduction is related to the widespread application of FT-Raman spectroscopy. 

Y. Leterrier. Durability of nanosized oxygen-barrier coatings on polymers. Prog. Mater Set, 48(1) 1-55, 2003. 

H.S. Yang, J. Park, W.G. La, H. Jang, M. Lee, B.S. Kim, 3,4-Dihydroxyphenylalanine-assisted hydroxyapatite nanoparticle coating on polymer scaffolds for efficient osteoconduction. Tissue Eng. Part C Mefliods 18 (2012) 245-251. 

Thone, J., Hollander, A., Jaeger, W., Trick, I., Oehr, C., 2003. Ultrathin antibacterial polyammonium coatings on polymer surfaces. Surf. Coat. Technol. 174-175, 584-587. 

Kim, B.C., Nair, S., Kim, J. et al. 2005a. Preparation of biocatalytic nanofibres with high activity and stability via enzyme aggregate coating on polymer nanofibres,... 

T. Hubacek, J. Siegel, R. Khalili, N. Slepickova-Kasalkovd, and V. Svordk. Carbon coatings on polymers and their biocompatibility. Applied Surface Science, 275,43-48, 2013. 

Huang, W., Zou, B., Zhao, Y., Meng, X., Wang, C., Cao, X., Wang, Z. Fabrication of novel thermal barrier coating on polymer composites via the combined sol-gel/sealing treatment process. Appl. Surf. Sci. 258, 9058-9066 (2012)... 

Ballhom, R., and Heimann, R.B. (2007) Cold gas dynamic spraying (CGDS) of Ti02 (anatase) coatings on polymer substrates microstructural characterisation and photocatalytic efficiency. /. Photochem. Photobid. A, 187 (2-3), 285-292. 

Balagna Cristina, Perero Sergio, Ferraris Sara, et al. Antibacterial coating on polymer for space application. Mater. Chem. Phys. 135 no. 2-3 (2012) 714-722. 

Leterrier " et al. studies the crack evolution of brittle silicon oxide coatings on polymer substrates with the fragmentation test. The number of cracks is counted as a function of the applied strain. The evolution of the crack density in a sample just above the erack onset strain is described with Weibull statistics. Weibull moduli... 

LeterrierY. Durability ofnanosized oxygen-barrier coatings on polymers. Progress Mater. Sci. 2003 48 1-55... 

Scherzer T, Muller S, Mehnert R, Volland A, Lucht H. In-hne monitoring of the conversion in photopolymerized acrylate coatings on polymer foils using NIR spectroscopy. Polymer 2005 46 7072-7081. 

Cui L, Lionti K, Ranade A, Larson-Smith K, Dubois GJ-M, Reinhold H, Dauskardt RH. Highly transparent multifunctional bilayer coatings on polymers using low-temperature atmospheric plasma deposition. ACS nano 2014 8(7) 7186-91. 

Non-stick polymer coating on polymer-coated aluminum foil ... 

Kim, B. C., et el., Preparation ofbiocatalytic nanofbers "with high activity and stability via enzyme aggregate coating on polymer nanofbers. Nanotechnology, 2005, 16(7), p. S382. 

C. Yao, D. Storey, T.J. Webster, Nanostructured metal coatings on polymers increase... 

Antireflection (AR) coatings are widely used in various applications such as display panels, solar cells and, optical lenses." AR coatings are usually applied to glass surfaces, but in many applications the glass substrates are being replaced with polymers. Coatings on polymer substrates are made at room temperature because of the low heat resistance of polymers. These films, however, often exhibit low optical transmittance and poor adhesion. Methods such as ion beam mixing, heat treatment, and... 

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