Shape memory clay flaps assisted body cooling fabrics

Aegean International Textile and Advanced Engineering Conference 2018

Abeywardena, S.B.Y.^1,2 ; Perera, S.^3 ; Weerasinghe, P.V.T.^4 ; Nalin De Silva, K.M.^2,5 ; Walpalage, S.^1 ; Somaratne, M.C.W.^3 ; Hettiarachchi, N.M.^2 ; Jeyasakthy, S.^2

Department of Chemical and Process Engineering, Faculty of Engineering, University of Moratuwa, Sri Lanka^1

Sri Lanka Institute of Nanotechnology (Pvt) Ltd, Nanotechnology and Science Park, Sri Lanka^2

Division of Polymer, Textile and Chemical Engineering Technology, Institute of Technology, University of Moratuwa, Sri Lanka^3

Department of Textile and Clothing Technology, Faculty of Engineering, University of Moratuwa, Sri Lanka^4

Department of Chemistry, Faculty of Science, University of Colombo, Sri Lanka^5

关键词: Bentonite nanoclay;    Clay swelling;    Mechanical response;    Moisture management;    Polyester fabric;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/459/1/012027/pdf
DOI  :  10.1088/1757-899X/459/1/012027

来源: IOP

【 摘 要 】

Mechanical responses of inorganic clay to external stimuli have been rarely implemented into devices that interact with the human body. We demonstrate that the hygroscopic and free swelling behaviours of Na-bentonite were engineered to design wearables, which give multifunctional responsiveness to human sweat. By printing bentonite nanoclay (BNC) composite on flaps of fabrics, they can reversibly change shape within a few seconds in response to environmental humidity gradients. Body's need for cooling is facilitated through controlled ventilation by opening and closing of these clay printed flaps. This study provides a background for developing new shape memory clay composite for many applications in garment industry.