31 Aug '14, 3pm
Super-Durable Material Made from Wood Waste is Stronger, Cheaper, and Lighter Than Kevlar
Of course, CNC is not perfect – it’s biggest drawback lies in how it deals with water. While the hydrogen bonds between the molecules are too strong to simply be dissolved by H2O, the cellulose can become disordered when wet. Since hydrogen bonds with water, a drop can potentially turn CNC into a water-loving substance, soaking up the stuff like a paper towel. This could reduce the strength and greatly increase the weight of the CNC while jostling its microscopic make-up. Researchers exploring ways to develop CNC are striving to overcome its shortcomings with moisture by either adding it to devices that do not come in contact with water, or altering its surface chemistry to repel the molecules.