Coating equipments for

After evaporation of the solvent, the coatings are thermally or radiation cured. Radiation cure has been carried out with a medium pressure mercury lamp for 1, 3, 5, 8, 10, 13, 15, and 20 seconds in both the absence and the presence of a photosensitizer. The curing proceeds for several seconds in the absence of a photosensitizer, and very fast in the presence of benzophenone, a common photosensitizer. The two conjugated triple bonds of the linear polymers evidently require very low energy and easily cross-link with standard coatings equipment for radiation cure. The coatings, cured at radiation time longer than 10 seconds, have a pale yellow color. The thermal cure (without radiation) proceeds at 100 C for about 15 minutes. 

Mitsubishi, High-speed DEC coating equipment for improved bas barrier performance of PET botties, Mitsubishi Heavy Industries Technical Review, 49 4 (2012) pp. 70-71... 

Figure 15. Standard coating equipment for PSAs A) Knife over roU B) Reverse roll coater... 

Figure 16. Coating equipment for pressure-sensitive hot-melt adhesives... 

The Institute has many-year experience of investigations and developments in the field of NDT. These are, mainly, developments which allowed creation of a series of eddy current flaw detectors for various applications. The Institute has traditionally studied the physico-mechanical properties of materials, their stressed-strained state, fracture mechanics and developed on this basis the procedures and instruments which measure the properties and predict the behaviour of materials. Quite important are also developments of technologies and equipment for control of thickness and adhesion of thin protective coatings on various bases, corrosion control of underground pipelines by indirect method, acoustic emission control of hydrogen and corrosion cracking in structural materials, etc. 

An important newer use of fluorine is in the preparation of a polymer surface for adhesives (qv) or coatings (qv). In this apphcation the surfaces of a variety of polymers, eg, EPDM mbber, polyethylene—vinyl acetate foams, and mbber tine scrap, that are difficult or impossible to prepare by other methods are easily and quickly treated. Fluorine surface preparation, unlike wet-chemical surface treatment, does not generate large amounts of hazardous wastes and has been demonstrated to be much more effective than plasma or corona surface treatments. Figure 5 details the commercially available equipment for surface treating plastic components. Equipment to continuously treat fabrics, films, sheet foams, and other web materials is also available. 

Paper may be coated either on equipment that is an integral part of the paper machine, ie, on-machine coating, or on separate converting equipment. Many plants include both types of coating equipment and utilize each to its maximum advantage for paper and paperboard. The combination of techniques is of particular value where more than one coating must be appHed to the sheet in order to obtain a product of desired quaUty. 

Dispersibility. Pigments modified with a dispersion additive take less time and energy to disperse in a coating (12,44). The equipment for blunging is simpler and less expensive than bah. mihs. Color correction is simplified and settling is minimized. Color strength in letdowns is often improved... 

Non-Metallic Materials Numerous engineering thermoplastics have been commercialised including materials such as polyetherether ketone (PEEK) and polyether sulphate (PES) with much improved thermal/chemical resistance. The usage of FRP equipment has increased, and fluoropolymer lining technology/applications have come of age. Of particular interest is the development of stoved, fluoropolymer coating systems for process industry equipment. 

Testing of metals for resistance to sulphide stress cracking at ambient temperatures Accelerated test procedures for screening atmospheric surface coating systems for offshore platforms and equipment... 

Other Protective Equipment For laboratory operations, wear lab coats, gloves and have mask readily accessible. In addition, daily clean smocks, foot covers, and head covers will be required when handling contaminated lab animals. 

OTHER PROTECTIVE EQUIPMENT For general lab work, gloves and lab coat shall be worn with M9, M17 or M40 mask readily available. 

Kirchner in 1950 was the first who used adsorption chromatography on impregnated glass-plate coated with silicic acid or alumina. It may be emphasized, however, that Egon Stahl s fundamental work stands as a landmark in the world-wide acceptance of this new technique in the laboratory. Later on, Stahl in 1958, introduced a standard equipment for preparing uniform thin-layers of known thickness, which eventually led to the ultimate acceptance of this new technique as an additional modem tool for analytical chemistry. 

Slide-based microarray technology was first introduced by Schena etal. (1995). The processes and equipment for preparing (arrayer) and analyzing (laser scanner) microarray slides comprised a portion of Dari Shalon s thesis work at Stanford University. Polymerase chain reaction (PCR) products (cDNA probes) were attached to PLL-coated glass microscope slides. The... 

If suitable equipment for processing the polymer melt is not available, or if the polymer will not melt, or melts only with decomposition, the processing may be carried out from solution. This technique, however, is limited to the fabrication of films, membranes, fibers, coatings, and adhesives. 

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