Fillers amorphous silicates

Calcined kaolin, scalenohedral PCC, aragonitic PCC and amorphous silicates are examples of aggregated fillers, i.e. these products consist of crystals which are synthetically clustered into repetitive shapes of similar size throughout the... 

A soft, gritty amorphous silica composed of minute siliceous skeletons of small aquatic plants. Used in filtration and decoloration of liquids, insulation, filler in dynamite, wax, textiles, plastics, paint, and rubber. Calcined and flux-calcined diatomaceous earth contains appreciable amounts of cristobalite, and dust levels should be the same as for cristobalite. 

Tripoli. Tripoli [1317-95-9] is a fine grained, porous, decomposed siliceous rock produced mainly in Arkansas, Illinois, and Oklahoma. It is widely used for polisliing and buffing metals, lacquer finishing, and plated products. Since tripoli particles are rounded, not sharp, it has a mild abrasive action particularly suited for polisliing. Tripoli is also used in toothpastes, in jewelry polisliing, and as filler in paints, plastics, and rubber. Rottenstone and amorphous silica are similar to tripoli and find the same uses. In 1987 the abrasive use of tripoli in the United States totaled 26.6 million tons and was valued at about 3.1 million however, the portion used as a filler totaled 71.1 million tons and had a value of almost 10 million (4). 

Micro-P. [DJ. Enterprises] Amorphous mineral silicate lightweight, stable, inert filler, resin extender for aitoaft, military, appliances, business machines, construction, consumer goods, elec electronic, land transport, and marine applies. 

Furthermore, perlite has been reported to be a suitable support for titanium dioxide nanomaterials [516-520]. Basically an amorphous alumina silicate (see Table 13), Perlite is an industrial mineral and a commercial product, useful for its light weight after processing. Due to its low density and relatively low price, many commercial applications for perlite have been developed including construction and manufacturing fields, horticultural aggregates, filter aid and fillers [519]. 

Diatomaceous earth, amorphous filler, dynamite Wood flour filler, elastomers Calcium silicate filler, electrical insulation Ozokerite... 

Aluminum silicate Aminotrimethylene phosphonic acid Barium hydroxide lime Calcium metasilicate Calcium sulfate Calcium sulfate dihydrate Cellulose Diatomaceous earth Diatomaceous earth, amorphous Magnesium carbonate Sodium polyacrylate Talc filler, paper coatings Aluminum silicate dihydrate Bentonite Calcium metasilicate Whiting Wollastonite filler, paper sizing Kaolin... 

As it is known [4], Na-montmorillonite is layered silicate the plates of which have smaller thichness than their width and length. Therefore it is assumed, that the structure of nanocomposite having that filler besides actually Na -montmorillonite has crystalline regions, amorphous (rubber) phase and interfacial areas. In this case reinforcement degree EJE can be written in the following form [5]... 

A significant decrease in the internal stresses also occurred upon the introduction of a filler. In the example summarized in Table 6.14, the filler is a sample of amorphous silica introduced into the MgO suspension. One can assume that in this case, the decrease in the Adid value was also caused by the decrease in the supersaturation because of the dissolution of the Mg(OH)2 in the course of magnesium silicate formation. 

Synthetics - Synthetic fillers, other than Ti02, are the silicas and aluminas. The silicas are either amorphous or crystalline, and are formed by precipitating various forms of silicon dioxide fi om acidified soluble silicates. The synthetics can be hydrated silica, simple alkaline earth metal silicates, or almninum silicates. 

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