Two-pole medical forceps are under development in Germany using an exciting new metal to ceramic co-molding process. Two-component plastic injection molding is widely used to mate dissimilar materials, such as polypropylene and thermoplastic elastomer. Co-molding has not worked well for powder materials, such as ceramic and metal, because of widely differing shrinkage rates, particularly in the post-mold sintering process used to remove binders. But researchers at the Fraunhofer Institute for Ceramic Technologies and Systems (IKTS) in Dresden, Germany have identified compatible feedstocks through simulation studies. They also say that particle density is critical in developing shrink-compatible powder feedstocks. In one of their most interesting projects, they have prototyped conductive forceps in which a metal layer conducts electricity and ceramics provide insulation. Current flows to a human body through one arm and returns through another. In currently used forceps, current flows into the patient’s body, and then back into the forceps. The purpose of the current is to cauterize tissue. The current entering the body is described as minimal. But the new technology would be even safer. The forceps are being tested now by various partners in Germany.
Dow Chemical and several other companies have launched a program in Omaha, Neb. to divert about 36 tons of plastics from landfills in its first phase, and convert it into energy used for cement production.
A make-your-own Star Wars Sith Lightsaber hilt is heftier and better-looking than most others out there, according to its maker, Sean Charlesworth. You can 3D print it from free source files, and there's even a hardware kit available -- not free -- so you can build one just in time for Halloween.
Some next-generation bio-based materials are superior in performance to their petro-based counterparts, but also face some commercial challenges. This is especially true of certain biopolymers, adhesives, coatings, and advanced materials.
Cars and other vehicles, as well as electronics and medical devices, continue to lead the use cases for the new plastics products we've been seeing, as engineers design products for tougher environments.
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