Design News, February 2013

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Source: Eovations fibers into a composite structure. Eovations uses several mineral fillers.These are present primarily as a physical nucleation site, not a chemical nucleation site, since their chemistry is less important than the right size and aspect ratio, Brown said.The material also replicates the structure of wood with an internal closed cell structure that reduces the weight of the material without sacrificing its strength. Open spaces are included as capillary-like structures between the strands, so that about 56 percent of the composite's volume is air. Th composite has a higher modulus of elasticity at 500,000 psi to 800,000 psi than Trex. It does not have a catastrophic failure mode: the modulus of rupture is zero.That means it can be valuable as a hurricane-proof material, said Brown. "A piece of it 5/16 inches thick can pass all the hurricane standards by itself, not including any other structure. A 55 mph wind leaves only a small impression, about 3/8 inches, but it bounces off of the structure," he said. The composite's moisture absorption is less than 0.2 percent and densities are between 0.5g/cc and 1.0 g/cc. The material's wide processing window means that properties of the finished composite, such as density, can be customized. It can be worked like wood with common woodworking tools, including cutting, sawing, machining, and Eovations's mineral/thermoplastic composite has a modulus of elasticity between 500,000 psi and 800,000 psi, but a modulus of rupture of zero. It can flex extremely well, but does not have a catastrophic failure mode. drilling. Conventional fasteners can be used, and their acceptance and hold is even better than wood's. — Ann R. Thryft, Senior Technical Editor, Materials & Assembly For More Information: Bridge Made From Recycled Plastic Bottles: Coconut & Fabrics Improve Biocomposites: AH1212C_ASG_MotionPAC_Packaging_Applications_7x4_625_AGR_halfpage.qxd 1/9/2013 3:59 PM Page 1 Reduce Programming Time by 30% to 50% with Aerotech's Integrated PLC and Advanced Motion Control Labeling Applications Pick and Place PLC + Advanced Motion Control = Machine Control Made Easy Aerotech's A3200 MotionPAC software-based Programmable Logic Controller (PLC) is completely integrated with Aerotech's A3200 motion controller, which shortens your development time. MotionPAC complies with IEC61131-3 and PLCopen. Users can program in Ladder Diagrams (LD), Function Block Diagrams (FBD) or Structured Text (ST), AeroBasic™ or .NET. MotionPAC's Integrated Automation reduces programming and commissioning time by 30% to 50%, and is ideal for full machine control. Get a FREE copy of Integrated Automation Solutions at Filling Applications Dedicated to the Science of Motion Ph: 412-963-7470 Email: A e r o t e c h Wo r l d w i d e United States • France • Germany • United Kingdom China • Japan • Taiwan AH1212C_ASG Design News | fEbruary 2013 | www.d esign n –36–

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