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Optical Bonding Materials
Because most types of glass have a refractive index of 1.5, most adhesives used for optical bonding have a similar refractive index. Depending on the application, silicone, epoxy, acrylated urethane or PSA may offer the optimized mechanical and thermal properties. Silicones are commonly used
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Rewiring the retina
National labs, universities, and at least one private company are exploring ways to help people blinded by retinal disease. The artificial retina will use a flexible, silicone-rubber-based implanted electrode such as this. Although having artificial retinas in both eyes could give patients more
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PSAs take hold
product design or redesign to avoid production delays and potential quality issues down the road. A quick overview of available PSAs will help determine which one is right for the job. PSAs come in three basic chemistries: rubber based, acrylic, and silicone. Rubber-based PSAs adhere to a wider
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Designs that won't go up in smoke
in the car's design caused it to fail in a mock-up flammability test. Flashover occurred in 3 min. Subsequent tests, however, demonstrated that a design modification solved the problem. Most silicones such as Bisco Cellular Silicone are inherently temperature resistant and provide a low rate of smoke
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Pressure Transmitters for Steel and Aluminum Mills
. - No Silicone Oil, Welds, or internal O-rings. - High Proof and Burst Pressure Ratings. -Design features include stress reduced diaphragm that for years will survive high pressure spikes. - Special internal restrictor maintains high frequency response ~1kHz. - Internal Protection Against Pressure Spikes
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Interphex Booth Previews
Training in Fluid Bed Systems spring seminar, April 20 to 21, 2004, presenting the principles of fluidization, airflow entrainment, spray rates and nozzle configurations. Each principle is discussed in theory and demonstrated in ACT's laboratory. molded silicone fittings are supplied as assemblies
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Definitions and Explanations
, or longer flex life, or greater reliability. These alloys are normally Cadmium bronze (also known as Cadmium copper). Less frequently used alloys are Cadmium chromium copper, Phosphor bronze, and Silicone bronze. Conductor, stranded: Solid wires twisted together, or groups of twisted solid wires which
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Medical Device Link . Design Considerations for EMI Gaskets Selecting the proper EMI gasket is a complex task that requires careful examination of all criteria.
to their material composition. Wire mesh gaskets are composed of tin-plated, copper-clad steel or Monel wire that has been knitted on industrial knitting machines and formed into circular or rectangular cross sections. In other versions, the wire is knitted over a silicone or neoprene sponge core
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Medical Device Link .
Medical Device & Diagnostic Industry A review of material properties and processing characteristics highlights silicone's enduring popularity for fabricating a range of medical products. For those involved in medical product development, selecting a high-quality elastomer for critical applications
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Tape eases appliance design pressures
and "release" needs. Release is the degree of ease with which the liner or backing may be removed from a tape. Typically, release is determined by a silicone coating that prevents the adhesive from forming a strong bond with the release liner. Some bond is necessary. Tape eases appliance design pressures