University of Massachusetts Lowell,
Keywords: Elastomeric Laminates, Bromobutyl rubber, Nitrile rubber, Floroelastomer
Summary:Warfighters, first responders, and industrial site workers require protective garments that provide protection from exposure to hazardous chemicals. Current high hazard suits are typically based on stiff plastic films, creating a bag-like garment without much flexibility. Elastomers can provide favorable flexibility, but a single elastomer type will generally not be a good barrier for all hazards. This work aims to address these shortcomings by creating a flexible barrier material, consisting of a multilayer elastomeric laminate composed of bromobutyl rubber, nitrile rubber, and fluoroelastomer. To fabricate a stable multilayer laminate, the adhesion between each layer is critical. The effects of the ingredients in the formulation on the adhesion were, therefore, studied. The physical properties were determined for the laminates along with permeation measurements for a range of chemicals representing toxic industrial threats and chemical warfare agent simulants.