نتایج جستجو برای: shape memory polymer
تعداد نتایج: 528215 فیلتر نتایج به سال:
Functional materials with specific surface wettability play an important role in a wide variety of areas. Inspired by nature's Nepenthes pitcher plant, we present a novel slippery film with tunable wettability based on a shape-memory graphene sponge. The porous graphene sponge coated with shape-memory polymer was used to lock in inert lubricants and construct slippery surfaces to repel differen...
Multi-shape memory polymers were prepared by blending a series of styrene (St)-block-(styrene-random-meth acrylate (MA))-block-styrene triblock copolymer nano-latexes. These latexes synthesized using a reversible addition-fragmentation chain transfer (RAFT) emulsion polymerization method have a core-shell structure. The cores are formed by the middle poly(St-random-MA) blocks. They act as trans...
Additive manufacturing (AM) gives engineers unprecedented design and material freedom, providing the ability to 3D print polymer structures that can change shape. Many of these Shape Memory Polymer (SMP) structures require multi-material composites, and different programmed shapes can be achieved by designing and engineering these composites to fold and unfold at different rates. To enable SMP ...
The paper presents a new healing system that uses pre-tensioned hybrid tendons to close cracks in cementitious structural elements. comprise an inner core, formed from aramid fibre ropes, and outer sleeve made shape memory PET. During the manufacturing process, core of tendon is put into tension compression, such equilibrium. A set are then cast element heat activated once cracking occurs. This...
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