title: Microwave synthesis and actuation of shape memory polycaprolactone foams with high speed.
abstract: Microwave technology is a highly effective approach to fast and uniform heating. This article investigates that the microwave heating as a novel method is used to rapidly foam and actuate biocompatible and biodegradable shape memory crosslinked-polycaprolactone (c-PCL) foams. The optical microscope proves that the resulting c-PCL foams have homogenous pore structure. Mechanical behavior and shape memory performance of c-PCL foams are investigated by static materials testing. Shape recovery ratio is approximately 100% and the whole recovery process takes only 98 s when trigged by microwave. Due to the unique principle of microwave heating, the recovery speed of c-PCL foams in microwave oven is several times faster than that in hot water and electric oven. Hence compared to the traditional heating methods, microwave is expected to bring more advantages to modern industry and scientific research in the field of smart materials and structures.
authors.affiliation: Centre for Composite Materials and Structures, Harbin Institute of Technology (HIT), Harbin 150080, P. R. China.
authors.forename: Fenghua
authors.initials: F
authors.lastname: Zhang
authors.affiliation: Centre for Composite Materials and Structures, Harbin Institute of Technology (HIT), Harbin 150080, P. R. China.
authors.forename: Tianyang
authors.initials: T
authors.lastname: Zhou
authors.affiliation: Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), Harbin 150001, P. R. China.
authors.forename: Yanju
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Centre for Composite Materials and Structures, Harbin Institute of Technology (HIT), Harbin 150080, P. R. China.
authors.forename: Jinsong
authors.initials: J
authors.lastname: Leng