Applications of shape-memory polymers and their composites. As a novel kind of smart materials, SMPs currently cover a broad range of application areas ranging from outer space to automobiles. Recently, they are being developed and qualified especially for deployable components and structures in aerospace .
Polyurethane Shape Memory Polymers details the fundamentals of SMP makeup, as well as their shape-recovery features and their seemingly endless potential for use in applications ranging from the macro- to submicron scales. With an abundance of illustrations and vivid pictures to explain how SMPs and their composites work and how they can be .
Applications have always been the focus of studies on shape memory polymers and their composites. During the 1960s, shape memory polymers gained their first large-scale applications, namely, the use of PE thermal contraction tubes [263,264], which now are made from nylon or polystyrene materials. Thermal contraction tubes have good flame .
This book explores the recent advances in the field of shape memory polymers, whose ease of manufacturing and wide range of potential applications have spurred interest in the field. The book presents details about the synthesis, processing, characterization, and applications of shape memory polymers, their blends and composites.
Shape-memory polymers (SMPs) are one type of smart materials that are capable to recover from a "fixed" temporary shape to a "memorized" original shape under external stimulus. This chapter provides a comprehensive overview about the preparation methods of shape-memory polymers, polymer blends, and composites.
Apr 13, 2016· Multi-shape active composites by 3D printing of digital shape memory polymers. . and Applications of Shape-Memory Polymers and Their Composites Xiaozhou Xin, Liwu Liu, Yanju Liu
Shape memory elastomeric composites provide a new para digm for the development of a wide array of active polymer composites that utilize the melt–crystal transition to achieve the shape memory effect. This potentially allows for mat erial systems with much simpler chemistries than most shape memory polymers and thus can facilitate more rapid .
Sep 18, 2015· Shape memory polymers (SMPs) can be deformed into a temporary shape and then return to the original shape under an external stimulus, and the shape memory effects are attributed to the coexistence .
The advantage of shape memory polymer resins is that they can be shaped and reshaped repeatedly without losing their material properties. These resins can be used in fabricating shape memory composites. Traditional materials such as glues, muds have traditionally been used as matrices for papier-mâché and adobe. Inorganic
Abstract. Shape memory polymers (SMPs) belong to a class of smart polymers, which have drawn considerable research interest in last few years because of their applications in microelectromechanical systems, actuators, for self healing and health monitoring purposes, and in biomedical devices.
Summary: Electro‐active shape‐memory composites were synthesized using conducting polyurethane (PU) composites and multi‐walled carbon nanotubes (MWNTs). Surface modification of the MWNTs (by acid treatment) improved the mechanical properties of the composites. The modulus and stress at elongation increased with increasing surface‐modified MWNT content, while elongation at break .
SHAPE MEMORY POLYMERS AND THEIR COMPOSITES H. Park1, W.-R. Yu1*, P. Harrison2, Z. Guo3 1 Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea, 2 School of Engineering, University of Glasgow, UK, 3 Department of Engineering
Dunn, H. Jerry Qi, "Thermo-mechanical Behaviors of Shape Memory Elastomer Composites," Journal of Mechanics and Physics of Solids, 60, 67-83 (2012). Shape memory polymers (SMPs) are polymers that can fix a temporary shape and recover their permanent shape in response to environmental stimuli such as heat, electricity, or irradiation.
In this article, we introduce magnetically induced shape-memory composites that are prepared by incorporating mag-netic nanoparticles in thermoplastic shape-memory polymers. By inductive heating in an alternating magnetic field, the shape-memory effect of the composites …
May 25, 2010· Admired for their extraordinary stimuli-sensitive behavior and shape-changing capabilities, shape-memory polymers (SMPs) and multifunctional composites are among the most important smart materials. They continue to be widely applied in many diverse fields to create things such as self-deployable spacecraft structures, morphing structures, SMP foams
Shape Memory Polymers or SMPs are an interesting breed of smart materials. When heated above their transformation temperature they can be given a temporary shape which is frozen upon cooling. When reheated the polymer will change shape again and transform spontaneously to its original, permanent shape.
Shape-Memory Polymers and Multifunctional Composites Details Admired for their extraordinary stimuli-sensitive behavior and shape-changing capabilities, shape-memory polymers (SMPs) and multifunctional composites are among the most important smart materials.
Shape memory polymers (SMPs) have attracted tremendous research interest since their discovery. However, most advances in research of SMPs are based on molecular designs, i.e., "bottom-up" strategies. Due to the viscoelasticity of polymers, slow and incomplete shape variations are inevitable for most existing SMPs. Here, we propose a simple and scalable approach to design and fabricate SMP .
Shape Memory Polymers and Polymer Nanocomposites This research program was initiated after a gap was identified between shape memory polymer research activities in US and existing demands for smart materials in industry. The objective is to develop fundamental understanding of shape memory properties of polymer and polymer
Shape memory polymers and their composites in aerospace applications: a review Yanju Liu1, Haiyang Du1, Liwu Liu1 and Jinsong Leng2 1 Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), PO Box 301, No. 92 West Dazhi Street, Harbin 150001, People's Republic of …
Shape memory polymers and their composites in biomedical applications Wei Zhao a, Liwu Liu a, Fenghua Zhang b, Jinsong Leng b,⁎, Yanju Liu a,⁎ a Department of Astronautical Science and Mechanics, Harbin Institute of Technology (HIT), P.O. Box 301, No. 92 West Dazhi Street, Harbin 150001, People's Republic of
Reinforced shape-memory polymers have mainly a higher driving force of the morphing behavior and better mechanical properties. The main fibers for the reinforcements are a particle, nanofiber .
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 form by processing through heating, deformation, and finally, cooling.
Shape-Memory Polymers and Multifunctional Composites - Kindle edition by Jinsong Leng, Shanyi Du. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Shape-Memory Polymers and Multifunctional Composites.
Thermomechanics of Shape Memory Polymers and Composites Thesis directed by Associate Professor H. Jerry Qi and Professor Martin L. Dunn This dissertation presents studies with a combination of experiment, theory, and simulation on a broad range of polymeric material systems (both established and emerging), that exhibit the shape
The advancement of smart materials and structures has broad impact on aeronautics, civil engineering construction, gas and steam turbines, as well as wind power generators 1.Shape memory polymers (SMPs), are one of the most widely used smart materials, mainly due to their adjustable triggering temperature, low cost and facile synthesis 2.SMPs have already shown great potential in fields as .
The development of shape-memory polymer composites (SMPCs) enables high recovery stress levels as well as novel functions such as electrical conductivity, magnetism, and biofunctionality.
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