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.
At the JEC Europe 2015 composites show in Paris last month, makers of composite materials, software, and process equipment showed off their latest innovations. This year's show saw some announcements related to automotive applications, but many of the improvements came in the world of aerospace.
The DuPont-sponsored Plastics Industry Trends survey shows engineers want improved performance in a broad range of plastics and better recycling technology. These concerns top even processing enhancements that improve productivity.
Plastics leader SABIC recently announced a global initiative to help its customers take advantage of additive manufacturing (AM) and also advance 3D printing (3DP) technologies in several application areas. The company's plans go way beyond materials, and also include design, processing, and part performance.
A theme that was reflected in several ways at NPE 2015 was the use of 3D printing to assist in, or improve on, injection molding, as well as improvements in 3D printing materials and processes that are making better functional prototypes and end-use parts.
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