Plaster plasticizer, plasticizers

Keywords aggregates, filler, mortars, plaster, plastic waste materials, processing methods, recycling. 

CAS 14807-96-6 EINECS/ELINCS 238-877-9 Uses Filler for interior and exterior emulsion paints, industrial paints, powd. coatings, brushing enamels, primers, putties, adhesives, sealing compds., plasters, plastics (polyolefins), water-based systems Properties Wh. powd. fineness 18% < 2 p sp.gr. 2.7 packed bulk dens. 0.450 g/ml oil absorp. 40/100 g powd. dry brightness 96% pH 9 ref. index 1.57 0.2% moisture... 

Plasters Viscose, plastic film, cotton, polyester, glass, polypropylene Knitted, woven, nonwoven... 

GRP mouldings can be produced by hand laminating, spray depositing, resin transfer injection and hot and cold press. GRP requires some sort of former or tool from which it is moulded and can be quite simple and cheap, made from wood, plaster, plastics or GRP itself. The most common method of producing a part is hand laminating, often referred to as hand lay-up. 

Wagner equation Wagner number Wakamatsu reaction Waldhof fermentor Walkman Wallace plasticity Wallach procedure Wall baffles Wallboard Wall geometries Wallpaper paste Wallpaper pastes Wallpapers Wall plaster Walnut oil... 

Although the use of simple diluents and adulterants almost certainly predates recorded history, the use of fillers to modify the properties of a composition can be traced as far back as eady Roman times, when artisans used ground marble in lime plaster, frescoes, and po22olanic mortar. The use of fillers in paper and paper coatings made its appearance in the mid-nineteenth century. Functional fillers, which introduce new properties into a composition rather than modify pre-existing properties, were commercially developed eady in the twentieth century when Goodrich added carbon black to mbber and Baekeland formulated phenol— formaldehyde plastics with wood dour. 

Finishing lime is a refined hydrated lime, milled to make it suitable for plastering, particularly the finish coat. Putty derived from this hydrate possesses unusually high plasticity. 

Large and small shapes may be sUp cast from both plastic and nonplastic mixes by the usual techniques. Precise shapes, such as glass feeder parts, are made in this way as well as large flux blocks. The process requkes the formulation of a sUp of suitably stable character to be poured into a plaster mold to be dewatered. After it solidifies, the mold is removed and dried further before firing. 

Plastic cements are hydrauHc cements that have plastici2ing agents added to Pordand cement during the grinding operation to make them dow better. The primary use for plastic cements is in plasters and stucco. 

Mixtures containing sulfated castor oil were used to increase the lubricity of water base drilling fluids (123). Sulfated castor oil is also used in dishwashing compounds as a hand softener. A typical cleaning composition contains sodium dodecylben2ene sulfonate, sulfated castor oil, ethanol, and water. A sulfated derivative of castor oil is used as a dispersant for plaster of Paris, reducing the water needed to form a plastic slurry (124). Pesticide emulsions can be stabilized using ethoxylated castor oil (125). 

Although metals and alloy substrates account for much of the volume ia electroplating, there is a large and growing amount of plastic surfaces being plated, both for decorative trim and for electronic shielding appHcations. On a smaller scale, other materials that ate plated iaclude wood (qv), plaster, fibers (qv) and cloth materials, and plant and animal tissue, such as leaves, leather (qv), paper (qv), and seasheUs. 

Formgips, m. plaster of Paris (good grade), formhaltend, a. retaining form or shape. Form-heizung, /. (Rubber) mold cure, -holz, n. plastic wood. 

Substrates protected from different environmental conditions basically include the metals (steel, zinc, aluminum and copper), inorganic materials (plaster, concrete and asbestos), and organic materials (wood, wall-board, wallpaper and plastics). Metals may be surface coated to improve their workability in mechanical processing. 

Calcium carbonate occurs in nature as hmestone in various forms, such as marble, chalk, and coral. It is probably the most widely-used raw material in the chemical industry. It has numerous apphcations, primarily to produce cement, mortars, plasters, refractories, and glass as budding materials. It also is used to produce quicklime, hydrated lime and a number of calcium compounds. It is produced either as powdered or precipitated calcium carbonate. The latter consists of finer particles of greater purity and more uniform size. They also have many important commercial apphcations. Various grades of precipitated calcium carbonate are used in several products, such as textiles, papers, paints, plastics, adhesives, sealants, and cosmetics. 

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