Advances in Aerospace Sciences (Shape Memory Polymers)
Shape memory polymers (SMPs)respond to stimuli such as temperature, electricity, pH, ionic strength and light, and have many advantages such as low density, good shape recovery and easy processing. The SMPs have a place with another class of smart polymers which can have interesting applications in micro-electro-mechanical systems, actuators and biomedical gadgets. They can react to particular outer stimulus changing their design and after that recall the first shape. In the form of foams, the shape memory conduct can be upgraded on the grounds that they for the most part have higher compressibility. Considering additionally the low weight, and recovery constrain, the SMP foams are relied upon to have extraordinary potential applications principally in aviation. Shape memory styrene foam with uniform and controlled open-cell structure was successfully fabricated using a salt particulate leaching method.
Many applications ranging from biomedical to aerospace have been proposed for the use of shape memory polymers (SMPs). SMP foams have been proposed for applications in space. Large structures used in space such as solar sails, solar arrays, sunshields and radar antennas require heavy and space consuming mechanical mechanisms for deployment and control. The major challenges for SMPs are improving stress recovery and cycle time. The cycle time depends on material properties like geometric consideration and experimental conditions; therefore, it should always be reported in light of these other parameters to allow for appropriate selection.
Attracting and retaining clients and pressure to lower cost are the biggest challenges for these products. Furthermore, keeping up with new regulations and standards is also one of the key restraints for the Aerospace Foam Market.
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