抄録
The shape memory composite (SMC) belt composed of two kinds of TiNi shape memory alloy (SMA) with different phase transformation temperatures and polyurethane shape memory polymer (SMP) was fabricated and the three-way bending motion and recovery force were investigated. The result obtained can be summarized as follows. (1) The SMC belt with two kinds of SMA tapes and SMP tape was fabricated without bubble and gap by using the appropriate factors: the number of SMP tapes, the fastening force, the heat-treating temperature and time. (2) The three-way reciprocating bending movement was achieved during heating and cooling based on the characteristics of the SMA tapes and the SMP tape. (3) The development and application of multi-functional SMCs with simple structure for actuators are highly expected by the combination of the shape memory materials with various kinds of phase transformation temperature, memorized shape, volume fraction, composition and heating-cooling rate.
