Barium ferrite fibers

Undoubtedly the idea of adding the fillers is to achieve reduction in cost. However, there are some special type of fillers which are used purely on a functional basis with an accepted trade-off in the cost reduction, for example, some fiber glass reinforcements for polyesters, barium ferrite as a magnetizable filler, metallic powders for electrical and thermal conductivity improvement. In fact all these specialty fillers are more expensive than general purpose fillers and in some cases even more expensive than the polymer which they fill. In any case, the cost-effectiveness of the filler ought to be determined. The objective should be to compare the full cost of the completed product with and without the filler. [Pg.27]

Figure 26.2 (a) Aligned hollow barium ferrite nanoparticles prepared by nonhydrolytic sol-fibers prepared by aqueous sol-gel route. gel reaction coated with oleic acid, (c) Mag-... [Pg.815]

Typical fillers carbon black, calcium carbonate, dolomite, clays, calcinated clays, talc, soapstone, zinc oxide, filmed silica, borates, iron oxide, zinc oxide, magnesium carbonate, pulverized polyurethane foam, barium and strontium ferrites, magnesium aluminum silicate, nylon fibers, quartz in EMI shielding field silver plated aluminum, silver plated nickel, silver coated glass spheres, silver plated copper, silver, nickel and carbon black... [Pg.685]

Additives used in final products Fillers barium and strontium ferrites, boron carbide, calcinated clays, calcium carbonate, carbon black, carbon-silica dual phase filler, clays, dolomite, fumed silica, iron oxide, magnesium aluminum silicate, magnesium carbonate, mica, montmorillonite, nickel zinc ferrite, nylon fibers, pulverized polyurethane foam, quartz, silica carbide, soapstone, talc, zinc oxide Plasticizers naphthenic oil, polybutene, aromatic oil, esters of dicarboxylic acid Plasticizers adipates, aromatic mineral oil, paraffin oil, phosphates, phthalates, polyethylene glycol, processing oil, sebacates Antistatics dIhydrogen phosphate of 8-amlnocaprolc add. Iodine doping Antistatics carbon black, quaternary ammonium salt, zinc oxide whisker Antiblocking diatomaceous earth Release propylene wax Slip erucamide+stearamide ... [Pg.442]