Dielectric electroactive polymer applications in buildings

The use of smart materials in buildings is investigated. In particular, a new category of smart materials, called dielectric electroactive polymers (DEAPs), is discussed. DEAPs are materials whose shape and stiffness can be changed by electric stimulus. These properties led the author to investigate the potential application of DEAPs in buildings. DEAPs are produced by covering a soft polymer with dielectrics on both sides. The properties of DEAPs are described to illustrate the differences between these and other smart materials. A description of the electric behaviour of the material is also presented. Applications of DEAPs in heating, ventilation and air-conditioning systems, to control air or water motion, are additionally considered. Applications in large flexible structures such as building envelopes are described. As DEAPs can be laminated easily and they have great power density, they can be used in the management systems of facades, to control transparency or ventilation of the building envelopes. Finally, vibration isolation possibilities and building monitoring purposes are discussed. The state-of-the-art of DEAP science is reviewed and possible applications in buildings are described. © 2010 Earthscan.