Coatings method comparison

ISO 4628-2 ASTM D714 Blistering These standards describe a method for assessing the degree of bhstering of coatings by comparison with pictorial standards. The ISO standard has adopted the pictorial standards from ASTM and includes the correlation between the ISO and ASTM rating systems... 

ISO 4628-4 Cracking These standards describe a method for assessing the degree of cracking of coatings by comparison with pictorial standards... 

Nesterova, T., Dam-Johansen, K., and Kill, S. Synthesis of durable microcapsules for self-healing anticorrosive coatings a comparison of selected methods. Progress in Oiganic Coatings, 70(4), 342-352 (2011). 

Comparison of polymer coatings using organic and aqueous coating methods and their... 

A single-step coating method for preparation of glass capillary SCOT columns was proposed by Chanhan and Darbre [80]. They mentioned that SCOT columns have certain advantages over wall coated open tubular (WCOT) columns. Their values p = V V is gas phase volume in capillary column, VJ is liquid phase volume in capillary column) are usually much lower in comparison to... 

Poly(p-phenyleneterephthalamide) is soluble in dimethyl sulfoxide and is used to produce the well-known Aramid fibers. A blend of this material and polypyrrole in the form of film was prepared by the electrode coating method and using a / -toluenesulfonate salt as electrolyte [82]. A comparison of the mechanical properties of the blend with pure polypyrrole showed that the blend is a tougher material with a higher modulus and lower elongation at break. Treatment of the blend with HCl raises the conductivity but also increases hardness and toughness. 

Comparison of Spray-Coating Method on Static Indentation... 

TABl 18-1. COMPARISON OF THE COATING METHODS FOR AN ARCHITECTURAL GLASS... 

The entire slurry flow path is sealed against the environment until the slurry reaches the aluminum foil. Wear in a slot-die system is also very low in comparison to most other coating methods. This further reduces contamination of a coated product. 

A new brush-type CSP, the Whelk-0 1, was used by Blum et al. for the analytical and preparative-scale separations of racemic pharmaceutical compounds, including verapamil and ketoprofen. A comparison of LC and SFC revealed the superiority of SFC in terms of efficiency and speed of method development [50]. The Whelk-0 1 selector and its homologues have also been incorporated into polysiloxanes. The resulting polymers were coated on silica and thermally immobilized. Higher efficiencies were observed when these CSPs were used with sub- and supercritical fluids as eluents, and a greater number of compounds were resolved in SFC compared to LC. Compounds such as flurbiprofen, warfarin, and benzoin were enantioresolved with a modified CO, eluent [37]. 

In 1995 potatoes and rice were stored in an abandoned road tunnel in Japan. At the end of the winter the tunnel was filled with snow that was covered with aluminum coated tarpaulins. The products were stored both beside the snow piles and under the tarpaulins. Rice from the same harvest was stored in a grain magazine and at a research centre for comparison. The rice in the tunnel had best quality after two month. The potatoes under the tarpaulins kept its quality longest and it was found that the storage method was feasible over the whole year (Suzuki et al., 1997). 

Figure 21.8 Comparison of IMS indicating protein distribution in the rat brain section corresponding to Figure 21.7 (a-c) the spray-droplet (a), droplet (b), and spray-coating (c) methods are used. Reprinted with permission from Sugiura et al.7 See color insert.

Gill and Fitzgerald [481] determined picomolar quantities of mercury in seawater using stannous chloride reduction and two-stage amalgamation with gas-phase detection. The gas flow system used two gold-coated bead columns (the collection and the analytical columns) to transfer mercury into the gas cell of an atomic absorption spectrometer. By careful control and estimation of the blank, a detection limit of 0.21 pM was achieved using 21 of seawater. The accuracy and precision of this method were checked by comparison with aqueous laboratory and National Bureau of Standards (NBS) reference materials spiked into acidified natural water samples at picomolar levels. Further studies showed that at least 88% of mercury in open ocean and coastal seawater consisted of labile species which could be reduced by stannous chloride under acidic conditions. 

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