Filler thickening agent

The primary role of MgO in unsaturated polyesters is as a reactive filler/thickening agent in SMC/BMC manufacturing. Incorporation of up to 5% MgO in the formulation allows the production of a tack-free sheet within a few days at room temperature. The sheets can then be easily handled prior to the high-temperature molding step. The increased viscosity assists dispersion uniformity and improves the flow characteristics of the compound prior to the onset of the cross-linking reaction. 

Natural or synthetic, mostly low-MW molecules that reduce or suppress microbe populations in plastics. Specialised products (both organic and inorganic) which tend to be used most in plasticised materials such as PVC and polyurethanes, as well as in rubber articles. The main cause of microbial growth is the additives themselves plasticisers, starch fillers, lubricants, thickening agents and oils. 

Starch Polysaccharide (n times Glu) Used in foods as a filler and thickening agent naturally present in many foods... 

Trace metal analysis of anaerobic adhesives is best carried out using destructive techniques because of the high concentration of fillers and thickening agents added. These additives tend to interfere with trace metals from background noise, peak blooming, and the extent of dilution may exceed the detection limits and particle sizes may be too large to nebulise an anaerobic solution into the sample introduction orifice of the ICP-OES. 

Starch Amylose, amylopectin Tubers, grains, some fruits Food filler thickener gel-forming agent, bakery products saccharification to syrups... 

The grafting of organic and inorganic compounds and of metalloorgan-ic complexes onto the surface of amorphous silica is a subject of intense research in the former Soviet Union. As is well known, modified silicas are widely used in sorption, catalysis, and chromatography, as fillers for polymers, and as thickening agents in dispersed media. 

Miscellaneous Fillers - Silica and silicate fillers, such as Cabosil and Hi-Sil 233 are generally used as thickening agents in amounts of 2 to 10 parts per 100 parts of polysulfide polymer. When the silicate has a high pH value, care should be used in selecting this type of filler since it may affect package stability. 

Pesticides and antimicrobials (biocides) are used in a number of plastics construction materials, mainly to provide resistance to the growth of microorganisms. One common example is their use in a number of PVC and PU grades. PU is commonly used for roofing membranes in construction [22], and several plasticisers, lubricants, thickening agents and fillers that are used with it can support microbial growth effectively. 

Chem. Descrip. Org. modified sodium bentonite Uses Thixotrope, thickener, pigment/filler antisettling agent, antisagging agent for water-based systems, matte and semigloss emulsion and water-reducible paints, silicon-based paints, inks, household cleaners Properties Dens. 18.36 Ib/gal vise. 2900 cps bulking value 0.0545 gal/ lb 10% moisture Use Level 0.5-2.0%... 

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