Omniphobic Coatings for Self Cleaning and Enhanced Chemical/Biological (CB) Agent Protective Clothing

摘要

An omniphobic coating that employs a dual hierarchical micro and nano surface structure was developed. This dual-size structured omniphobic coating has been proven to be more durable than the commercial durable water repellant coating such as Quarpel? for at least 20 washes to water, oils, and organic solvents. When this coating is applied to textile surfaces, the resulting fabrics have very low interfacial energy, which minimizes surface wetting by water, liquid chemicals, and attraction to dirt. Important criteria for designing omniphobic coated fabrics leading to fabrics having both omniphobicity and optimal resistance to liquid penetration will be discussed along with supporting data. Data on surface, chemical, and physical properties, as well as field test data will be presented.