New type of nano-filler.Barium sulfate barium sulfate: see barite. , commonly used as a radio-opaque Adj. 1. radio-opaque - not transparent to X-rays or other forms of radiation; "barium sulfate is radiopaque" radiopaque filler in medical plastics, has now been precipitated in nano-sized particles of 10 to 50 microns by Solvay Barium Strontium strontium (strŏn`shēəm) [from Strontian, a Scottish town], a metallic chemical element; symbol Sr; at. no. 38; at. wt. 87.62; m.p. 769°C;; b.p. 1,384°C;; sp. gr. 2.6 at 20°C;; valence +2. GmbH in Hannover, Germany. Solvay can apply surface treatments that improve both dispersion and resin coupling. Not only do the spherical nano-particles enable filled resins to be clear, but they enhance some mechanical properties better than conventional fillers. For example, just 2.5% of Solvay's Blanc Fixe Nanofine in epoxy boosts elongation at break by 82% while impact strength rises 73% and tensile strength increases 19%. Tensile and flexural flexural pertaining to the flexure of a joint. flexural deformity fixation of joints in flexion. In the newborn called contracted calves or foals. moduli are unaffected, and flexural strength declines 7%. Solvay researchers recommend a maximum of 5% loading in epoxy. It has also been tried in polyurethane and cast acrylic. The filler has a density of around 4 g/cc. Tel: +49 511857 0 * www.solvay-bariumstrontium.com |
|
||||||||||||||
Printer friendly
Cite/link
Email
Feedback
Reader Opinion