TY - JOUR
T1 - Thermo-adaptive functionality of graphene/polydimethylsiloxane nanocomposites
AU - Ren, Liqiang
AU - Qiu, Jingjing
AU - Wang, Shiren
PY - 2012/10
Y1 - 2012/10
N2 - Thermo-adaptive materials exhibit transformative structures/properties in response to an external thermal stimulus and thus are very promising for many industrial applications. In this paper, we present a new strategy to develop a thermo-adaptive material using polymer-coated graphene sheets. Nanocomposite platelets were fabricated through multilayer deposition, laser patterning, and lift-off. The resultant micro-platelets rolled up to a microtube structure after they were released from the substrate. They can evolve from a tube to a flat plain sheet structure under heating, and can also roll up to a tube again under cooling. Both experimental and modeling results indicated that the geometrical evolution under a thermal stimulus was significantly dependent on the structure and morphology of the graphene/polymer nanocomposites. The reversible geometric evolution demonstrates a great potential for drug delivery, sensors, and other functional devices.
AB - Thermo-adaptive materials exhibit transformative structures/properties in response to an external thermal stimulus and thus are very promising for many industrial applications. In this paper, we present a new strategy to develop a thermo-adaptive material using polymer-coated graphene sheets. Nanocomposite platelets were fabricated through multilayer deposition, laser patterning, and lift-off. The resultant micro-platelets rolled up to a microtube structure after they were released from the substrate. They can evolve from a tube to a flat plain sheet structure under heating, and can also roll up to a tube again under cooling. Both experimental and modeling results indicated that the geometrical evolution under a thermal stimulus was significantly dependent on the structure and morphology of the graphene/polymer nanocomposites. The reversible geometric evolution demonstrates a great potential for drug delivery, sensors, and other functional devices.
UR - http://www.scopus.com/inward/record.url?scp=84866002490&partnerID=8YFLogxK
U2 - 10.1088/0964-1726/21/10/105032
DO - 10.1088/0964-1726/21/10/105032
M3 - Article
AN - SCOPUS:84866002490
VL - 21
JO - Smart Materials and Structures
JF - Smart Materials and Structures
SN - 0964-1726
IS - 10
M1 - 105032
ER -