Conventional high barrier films are produced by coating or laminating inorganic materials to polymeric substrates. While successful at lowering the permeability of the films, several unit operations are required to introduce multiple inorganic barrier layers. Here, we detail a new approach for making films comprised of as many as thousands of alternating layers of inorganic and polymeric materials using a single processing step to coextrude low Tg glass with polymers. The resulting composite structures exhibit extremely low moisture vapor permeability and show promise for applications ranging from flexible electronics to food packaging.
Journal: TechConnect Briefs
Volume: TechConnect Briefs 2019
Published: June 17, 2019
Pages: 443 - 445
Industry sector: Personal & Home Care, Food & Agriculture
Topics: Personal & Home Care, Food & Agriculture, Sustainable Materials