August 9, 2018 | International, Aerospace, Naval, Land
Military researchers think spider silk may keep US troops lighter and cooler in combat
Christopher Woody\ Researchers are looking at ways to lighten the load troops carry in the field and better regulate their temperatures. Synthetics like artificial spider silk are one material they're looking at for that purpose. Scientists have often found military applications in strange substances found in nature or made in labs. The silk spiders produce is tougher than Kevlar and more flexible than nylon, and Air Force researchers think it could it could be key to creating new materials that take the load and heat off troops in the field. Scientists at the Air Force Research Lab and Purdue University have been examining natural silk to get a sense of its ability to regulate temperature — silk can drop 10 to 15 degrees Fahrenheit through passive radiative cooling, which means radiating more heat than it absorbs, according to an Air Force news release. Those researchers want to apply that property to synthetics, like artificial spider silk, which is stronger than Kevlar, the polymer typically used in body armor, and more flexible than nylon. Enhancing body armor and adding comfort for troops is one of many improvements hoped for by a team led by Dr. Augustine Urbas, a researcher in the Functional Materials Division of the Materials and Manufacturing Directorate. "Understanding natural silk will enable us to engineer multifunctional fibers with exponential possibilities. The ultra-strong fibers outperform the mechanical characteristics of many synthetic materials as well as steel," Urbas said in the release. "These materials could be the future in comfort and strength in body armor and parachute material for the warfighter." https://www.businessinsider.com/military-scientists-want-to-use-spider-silk-for-body-armor-parachutes-2018-8