Carbon-Fibril compounds thwart ion contamination. (Keeping up with Materials).New static-dissipative, high-temperature thermoplastic A polymer material that turns to liquid when heated and becomes solid when cooled. There are more than 40 types of thermoplastics, including acrylic, polypropylene, polycarbonate and polyethylene. compounds launched by LNP (Local Number Portability) The capability of keeping the same local telephone number when switching carriers. See NP and WLNP. Engineering Plastics are said to be the first to use multi-wall carbon fibrils as the electrically conductive additive. Fibrils are hollow carbon nanotubes condensed con·dense v. con·densed, con·dens·ing, con·dens·es v.tr. 1. To reduce the volume or compass of. 2. To make more concise; abridge or shorten. 3. Physics a. from natural gas. LNP in Exton, Pa., claims fibrils impart excellent electrical conductivity and the high purity (low metal-ion contamination) needed for disk-drive and wafer-handling applications. LNP is initially offering fibril-containing compounds of PEEK and polyetherimide (PEI). "Fibrils deliver the highest purity levels yet seen in electrically conductive compounds," declares Mark Kaptur, conductive-product marketing manager. LNP data show that Stat-Kon PEEK and PET compounds reduce metal-ion contamination by 95% and 60%, respectively, versus equivalent compounds based on conventional carbon fibers. Kaptur adds that these benefits come with modest penalties in the form of reduced stiffness, around 15[degrees]C lower HDT HDT Heat Deflection Temperature (plastics) HDT High Dose Therapy HDT Heatpipe Direct Touch (Xigmatek) HDT Heat Distortion Temperature (plastics) HDT Henry David Thoreau , and higher melt viscosity. Fibril-based compounds are also more expensive than conventional grades, but their tensile elongation elongation, in astronomy, the angular distance between two points in the sky as measured from a third point. The elongation of a planet is usually measured as the angular distance from the sun to the planet as measured from the earth. is modestly higher. Tel: (800) 532-2567, www.lnp.com |
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