In our modern world, eliminating plastics is inconceivable. Unfortunately, they do have disadvantages, including the formation of CO2 in both production and combustion, depletion of fossil feedstocks, and growth of landfills. In the journal Angewandte Chemie, Russian researchers introduce a new way forward, a polymer made entirely from biomass that can easily and inexpensively be used in 3D printing. Objects produced in this way are of high quality, easily recyclable, and highly solvent-resistant. Conventional “subtractive” processes involve cutting, sawing, turning, or milling, which results in a great deal of wasted material. In contrast, 3D printing processes are, in principle, waste-free, because they are “additive”: three-dimensional objects are produced in a layer-by-layer application of material. The most common technique is called fused deposition modeling (FDM). In this process, the raw material is squirted through a hot nozzle onto a mobile base and thereby liquefied (extrusion). The printer head produces the programmed form like in a conventional two-dimensional printing process, releasing small amounts of the polymer instead of ink. This is repeated for layer after layer until the desired three-dimensional object is complete. Yet, the polymers used until now have a number of disadvantages that limit their use. Some of the polymers are attacked by organic solvents. Those that withstand the solvents, on the other hand, adhere poorly and shrink on heating, allowing their layers to come apart and causing errors in the printing process. Click Read More below for additional information.

Georgia-Pacific has agreed to partner with self-driving vehicle startup Gatik and KBX Logistics, the transportation arm for Koch Industries, to deliver its consumer products to more than 30 Sam’s Club locations in the Dallas-Fort Worth area. The collaboration involves moving Georgia-Pacific shipments from point to point on predefined short-haul routes using an autonomous vehicle fleet with 26-foot boxes. The trucks will deliver goods 24 hours a day, seven days a week, and are expected to travel up to three hundred miles daily. “We are looking forward to testing this transformational technology to deliver Georgia-Pacific brands like Quilted Northern® bath tissue and Dixie® products to Sam’s Clubs,” said Hayes Shimp, vice president of sales for Georgia-Pacific. “Once proven, we believe autonomous deliveries will enable us to remove cost and complexity from the supply chain to better serve our partner, Sam’s Club, and their members.” The operation involves Class 6 vehicles, which are significantly smaller than the Class 8 trucks that currently manage the deliveries. “Our partnership with Georgia-Pacific and KBX Logistics is poised to transform regional distribution architecture that has traditionally relied on class 8 platforms,” said Gautam Narang, CEO, and co-founder, of Gatik.