For rats and other rodents, plastics are a popular menu item. Techmer Polymer Modifiers (www.techmerpm.com) has come up with a polymer additive that keeps these pests from nibbling on important plastics. The company's PM 12211E63 Repellent imbues polyolefins and other thermoplastics with a taste that rodents find repulsive. At the same time, the modifier is non-toxic to pets—as well as the rodents themselves. PM 12211E63 has seen use in wire and cable insulation, fiber-optic cables, plastic pipe, garbage containers, agricultural films, and outdoor furniture.
Producing high-quality end-production metal parts with additive manufacturing for applications like aerospace and medical requires very tightly controlled processes and materials. New standards and guidelines for machines and processes, materials, and printed parts are underway from bodies such as ASTM International.
Engineers at the University of San Diego’s Jacobs School of Engineering have designed biobatteries on commercial tattoo paper, with an anode and cathode screen-printed on and modified to harvest energy from lactate in a person’s sweat.
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