Coatings, additives Binders

Also, there are some operational differences that cause differences between the retention ratio and the retardation factor. Even if the exact same stationary phase is coated on a TLC plate and packed in a column, the TLC material usually contains an additional binder to hold the stationary phase on the plate. This binder will most likely alter slightly the characteristics of the stationary phase and result in differences between... 

Special effect pigments suitable for outdoor applications must meet the highest standards for color fastness and weather resistance. These pigments are coated additionally with thin layers of transparent and colorless oxidic compounds. These layers increase the light resistance by reducing the photoactivity of the titanium dioxide surface. In addition, the interaction between pigment and binder is optimized. 

Uses Binder for pharmaceutical direct compression and compacting binder for wet granulation in tablets, capsules, and granules film-former for tablet coatings and topical sprays lowers soften, pt. in cellulose films film coating additive adhesion promoter Regulatory JSPI, BP, DAB compliance Manuf/Distrib. BASF Blagden Spec. Chems. Ltd Trade Names Kollidon VA 64... 

Uses Mold release agent for plastics metalworking additive pulp/paper processing vehicle for colorants, oils, and waxes film-former dispersant, compatibilizer for rubbers o/w emulsifier for cosmetics surfactant for textiles, metal lubricants/coatings. ceramic binders, fiberglass processing, printing inks... 

As documented in and expressed by these various contributions, the topic Polymers for Fuel Cells is a vast one and concerns numerous synthetic and physico-chemical aspects, derived from the particular application as a solid polymer electrolyte. In this collection of contributions, we have emphasized work which has already led to tests of these polymers in the real fuel cell environment. There exist other synthetic routes for proton-conducting membrane preparation, which are not discussed in this edition. Furthermore, certain polymers are utilized as fuel-cell structure materials, e.g., as gaskets or additives (binder, surface coating) to bipolar plate materials. These aspects are not covered here. 

An overview is presented on the merits of polyurethane dispersions in waterborne paint formulations. In addition to the characteristics listed which they impart to coatings, such binders can offer an even wider range of properties by means of blending or copolymerisation, producing binders which are tailor made for specific applications, it is stated. 

The component of a coating that provides many, if not all, of the physical property characteristics is the binder. The binder—along with pigments and additives—is the functional part of a coating. In the case of liquid coatings, solvents or water are present to assist in the application of the coating. The binder, or binder system, is usually made up of polymeric materials. In some cases, reactive monomers may be the carrier liquid and they will become part of the binder. 

Organic c. normally consist of a binder, pigments or colorants, a carrier liquid and various additives (- coating additives). The binder is a polymer, which may or may not be reactive (cross-linkable by polymerization or oxidation). The liquid may be organic or water, acting either as solvent or diluent... 

Quantitatively, pigments are the principal constituent of any coating color, binders being used in relatively small amounts. For every 100 parts pigment, there are typically about 5-20 parts binder and 0.1-3 parts of other additives. Coating color compositions common in both North America and Europe for sheet-fed offset and rotogravure printing processes are listed in Tab. 4-2. 

Apparently a negative AP with Q < 90° can be found for particular pore geometries [53]. A different type of water repellency is desired to prevent the deterioration of blacktop roads consisting of crushed rock coated with bituminous materials. Here the problem is that water tends to spread into the stone-oil interface, detaching the aggregate from its binder [54]. No entirely satisfactory solution has been found, although various detergent-type additives have been found to help. Much more study of the problem is needed. 

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