Smart polymer foams

Naruse Y et al (2009) Electrostatic micro power generator fiom low frequency vibration such as human motion. J Micromech Microeng 19(9) 094002 Neugschwandtner GS et al (2000) Large and broadband piezoelectricity in smart polymer-foam space-charge electrets. Appl Phys Lett 77(23) 3827-3829 Paajanen M et al (1998) Electro-mechanical film EMFi-a new multipurpose electret material. Sensors Actuators A 84(l-2) 95-102... 

If microballoons are dispersed in a shape memory polymer matrix, smart syntactic foam is obtained. Like conventional polymer based syntactic foam, thermosetting shape memory polymer syntactic foam has all the advantages associated with polymeric syntactic foam, in addition to its shape memory properties and healing capabihties, as will be discussed in Chapter 6. In the following, the focus will be on a thermosetting polystyrene shape memory polymer and its syntactic foam. 

Smart Syntactic Foam Fiber reinforced polymer grid skeleton... 

Yu, Y.-J., Hearon, K., Wilson, T.S., Maitland, D.J., 2011. The effect of moisture absorption on the physical properties of polyurethane shape memory polymer foams. Smart Materials and Structures 20, 6 p. 

Tey, S. J., Huang, W. M., Sokolowski, W. M. (2001), Influence of long-term storage in cold hibernation on strain recovery and recovery stress of polyurethane shape memory polymer foam. Smart Mater. Struct, 10, 321. 

John, M. and Li, G. (2010) Self-healing of sandwich stmctures with grid stiffened shape memory polymer syntactic foam core. Smart Materials and Structures, 19, paper 075013 (12 pages). 

Brady, S., Diamond, D., Lau, K.-T., 2005. Inherently conducting polymer modified polyurethane smart foam for pressure sensing. Sensors Actuators A Phys. 119 (2), 398-404. 

Rim is a common and easily achieved shape for most polymers. Shape memory film or foam has a number of applications in laminated smart fabrics. Various properties of SMP films have been investigated such as thermomechanical properties, different structural factors on the physical and water vapour transport properties, " effects of crystal melting, " molecular weight and influence of different processing temperatures. ... 

Shape memory polymers can be laminated, coated, foamed, and even straight converted to fibers. There are many possible end uses of these smart textiles. The smart fiber made from the shape memory pol5mier can be applied as stents, and screws for holding bones together. 

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