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  • Epoxy Value On-Line Monitoring with a ChemView (R) Photometer
    Purpose: To measure epoxy value and starting liquid resin content with the two-probe Simulplex TM ChemView (R) photometer and fiber optic insertion probes with simple, easy-to-maintain, linear calibrations. Approach: The NIR peak at 2208 nm is traditionally used to measure epoxy value. However
  • Epoxies for OptoElectronic Packaging: Applications and Material Properties (.pdf)
    micro-electronic grade joining materials will be used. For LEDs, the silver epoxy is needed for both electrical and thermal properties. Optically clear epoxy is used for the potting, molding, or encapsulation of the LED. In LCDs, there are many different applications of epoxy of which 2 are presented.
  • Better bones
    The composite bones are molded from a two-part epoxy system reinforced with chopped glass fibers. Physical properties (85 Shore D hardness, an elongation of 2%, and tensile and compressive strengths of 13 and 17.4 kpsi, respectively) are comparable to that of human bones and an added benefit is consistent
  • New Crack and Joint Technologies for Secondary Containment
    Niagara Falls, New York manufacturers of chlorine and caustic soda used a fluoropolymer tape system and novolac epoxy-vinyl ester topping to replace a rigid fiberglass system on a concrete loading pad (Figs. 1 and 2) subject to constant impact and wear. Olin's Chlor-Alkali Products' plant produces
  • New Flame-Retardant Structural Adhesive
    of 3-5 minutes, a fixture time of 10-15 minutes, and a functional-cure time of 2-3 hours. Once cured, 5 Minute Epoxy FR provides typical tensile shear strength of 2800 psi (on cold-rolled steel) and dielectric strength of 490 volts/mil. As a black, nonshrinking liquid, Cable Cast FR is a special
  • High Density, Angled Optical Fiber Array and Method
    signal data when transmitted during use. The opening pattern is preferably 2.times.2 to 128.times.128 or higher. Several alternate lap tool designs are disclosed including translational and rotating laps formed from solid bodies or a series of stacked plates. Standard slurry grinding and polishing
  • The glued together car body
    Recent advances in adhesive chemistries bring new possibilities for automotive structural joints. Comparison of the Betamate toughened epoxy (bottom) to a brittle adhesive (top) and to spot welds (center) illustrates potential improvements to basic BIW (bodyin-white) energy management. The test
  • Polymer Castings take on metals
    Epoxy/quartz composites can be precisely cast to size without secondary machining. A steel mold for casting digital scanner bases incorporates 160 vinyl tubing vacuum lines. The lines attach to the sides of the steel mold and stay with the casting when it is demolded. The 18-in.-diameter

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