Weight reduction in cars and other applications is driving use of innovative technologies such as glass microspheres in plastic compounds. Noble Polymers, a compounding business of Cascade Engineering, has developed a low-density polyolefin formulation using 3M glass bubbles that reduces the weight of TPO plastic parts up to 20 percent. A part on display at the 3M booth at this week’s National Plastics Exposition in Chicago incorporates glass bubbles (10 percent loading) to reduce weight of a seat frame from 2.25 pounds to 2.05 pounds. The glass bubbles replaced talc, and weight reduction wasn’t the only benefit. “We increased the flow of the compound by using specialty additives with the glass microspheres,” says Tim Patterson, business unit manager of Noble Polymers, Grand Rapids. MI. As a result, the mold cavity filled better for the complex design. The glass bubbles improve dimensional stability, reduce density and cut back on warpage, according to Louis J. Lundberg, business manager for transportation markets for the 3M Energy and Advanced Materials Division, St. Paul, MN. 3M announced a new line that has isostatic crush strength of 30,000 psi, expanding applications in several engineering plastics. These microspheres are 40 percent stronger than 3M’s previous leading high-strength glass microspheres and, at 17 microns, are approximately half their size. 3M Performance Additive iM30K has a density of 0.6 g/cc.
Several of the new and noteworthy 3D printers in this slideshow are breaking some boundaries in build volume, new metals printing techniques, or working with high-profile development partners to ensure very high-quality parts and controls.
United Launch Alliance will fly 3D-printed flight hardeware parts on its rockets starting next year with the Atlas V. The company's Vulcan next-gen launch vehicle will have more than 100 production parts made with 3D printing. The main driver? Parts consolidation and 57% lower production costs.
A new report from the National Institute of Standards and Technology (NIST) makes a start on developing control schemes, process measurements, and modeling and simulation methods for powder bed fusion additive manufacturing.
Although bio-based polymers face challenges from petroleum-based polymers, in certain markets they can displace the petro-based incumbents. Here are six new bio-based and renewable plastics for a variety of applications.
BASF has developed tools and initiatives to help engineers use more of its renewable materials in their designs, more effectively, as well as to build parts using them with more predictable performance.
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