WebbShape memory polymers (SMPs) with intelligent deformability have shown great potential in the field of aerospace, and the research on their adaptability to space environments has far-reaching significance. Chemically cross-linked cyanate-based SMPs (SMCR) with excellent resistance to vacuum thermal cycling were obtained by adding polyethylene … Webb您所在的位置：首页 > 科学研究 > 学术论文 > Effects of hard-segment content on the shape memory properties of segmented polyurethanes Effects of hard-segment content on the shape memory properties of segmented polyurethanes
Multimaterial 4D Printing with Tunable Bending Model
WebbThe properties of SMPUs can be improved significantly by improving the phase separation and the stability of the hard segment. This chapter introduces three strategies to improve the properties of SMPUs. The first is achieved by employing 4,4′-methylene-bis(2-chloroaniline) (MOCA) as the chain extender to form a stable hard segment phase. Webb1 dec. 2024 · Abstract. Shape memory polymers (SMPs) and SMP composites (SMPCs) have been widely employed in several fields and exhibit excellent self-actuation, … sight client download
Thermomechanical properties in a thin film of shape memory …
WebbThe piezoelectric effect has been exploited in many useful applications, including the production and detection of sound, piezoelectric inkjet printing, generation of high voltage electricity, as a clock generator in electronic devices, in microbalances, to drive an ultrasonic nozzle, and in ultrafine focusing of optical assemblies. Webb10 apr. 2024 · In addition, shape memory polymers exhibit tunable materials properties, the potential for biodegradation and resorption, excellent shape memory performance, and negligible toxicity. These salient features make these SMMs ultimate candidates for medical field applications because of their remarkable biocompatibility in a variety of … SMPs can retain two or sometimes three shapes, and the transition between those is often induced by temperature change. In addition to temperature change, the shape change of SMPs can also be triggered by an electric or magnetic field, light or solution. Like polymers in general, SMPs cover a wide range of … Visa mer Shape-memory polymers (SMPs) are polymeric smart materials that have the ability to return from a deformed state (temporary shape) to their original (permanent) shape when induced by an external stimulus … Visa mer Light-activated shape-memory polymers (LASMP) use processes of photo-crosslinking and photo-cleaving to change Tg. Photo-crosslinking is achieved by using one wavelength of light, while a second wavelength of light reversibly cleaves the photo … Visa mer Shape-memory polymers differ from shape memory alloys (SMAs) by their glass transition or melting transition from a hard to a soft phase which is responsible for the shape-memory … Visa mer • Memory foam • Smart material • Shape-memory alloy Visa mer Polymers exhibiting a shape-memory effect have both a visible, current (temporary) form and a stored (permanent) form. Once the latter has been manufactured by conventional methods, the material is changed into another, temporary … Visa mer The use of electricity to activate the shape-memory effect of polymers is desirable for applications where it would not be possible to use heat and is another active area of research. Some current efforts use conducting SMP composites with Visa mer Industrial applications One of the first conceived industrial applications was in robotics where shape-memory (SM) foams … Visa mer the pretty bride magazine