Polyurethane shape memory polymers

by Wei Min Huang

Publisher: Taylor & Francis in Boca Raton

Written in English
Published: Downloads: 981
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Subjects:

  • Polyurethanes,
  • Shape memory polymers

Edition Notes

Statementauthors, W.M. Huang, Bin Yang, Yong Qing Fu
ContributionsYang, Bin, Fu, Yong Qing
Classifications
LC ClassificationsTA455.P585 H83 2012
The Physical Object
Paginationp. cm.
ID Numbers
Open LibraryOL25046182M
ISBN 109781439838006
LC Control Number2011031714

  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 : Xiao-dong Qi, Yong Wang.   In order to describe the thermomechanical properties in shape memory polymer of polyurethane series, a thermomechanical constitutive model was developed by modifying a standard linear viscoelastic model. The model involved a slip element due to internal friction and took account of thermal expansion. In order to describe the variation in Cited by: Properties of shape-memory polymers. SMPs can retain two or sometimes three shapes, and the transition between those is induced by temperature. In addition to temperature change, the shape change of SMPs can also be triggered by an electric or magnetic field, light or solution. As well as polymers in general, SMPs also cover a wide property-range from stable to biodegradable, from soft . Shape memory polymers (SMPs) have received significant attention from scientists in recent years. This paper presents a simple route to design light-thermo stage-responsive SMPs. A novel series of liquid crystalline shape memory polymer composites (coded as PSMPU-Azom) exhibiting stage-responsive shape Cited by: 8.

Consequently shape fixity of low M w PPG decreased from 85 to 72% while shape recovery increased from 52 to 63% as the content of high M w PPG increased from 0 to 40%. Keywords: smart polymers, polyurethane foam, dynamic mechanical properties, shape memory properties, density eXPRESS Polymer Letters Vol.6, No.1 () 63–   shape memory polymers 1. shape memory polymers by nitheesh d nayak 2. agenda introduction literature review structure of smp comparison of shape memory polymers with shape memory alloys shape memory polyurethane (smpu’s) applications conclusion references 3. Shape memory polymers (SMPs) are smart materials that, as a result of an external stimulus such as temperature, can change from a temporary deformed shape back to an original shape. SMPs are finding an increasing use in such areas as clothing where they respond dynamically to changes in heat and. After being severely and quasi-plastically distorted, shape memory materials (SMMs) are able to recover their original shape when a right stimulus is applied phenomenon is known as the shape memory effect (SME), and it has been found in a number of material systems, including some alloys, polymers and ceramics etc Technically speaking, the procedure to fix the temporary shape.

In this book, the self-healing of composite structures with shape memory polymer as either matrix or embedded suture is systematically discussed. Self-healing has been well known in biological systems for many years: a typical example is the self-healing of human skin. Whilst a minor wound can be self-closed by blood clotting, a deep and wide cut needs external help by suturing. Inspired by. properties ofthe shape-memory polymers that arerequired for specific applications just by a slight variation of the pe-memorymaterialpresented.   The MarketWatch News Department was not involved in the creation of this content. (Market Insight Reports) -- Selbyville, Delaware, Global Shape Memory Polymer Market Report added at Missing: Polyurethane.

Polyurethane shape memory polymers by Wei Min Huang Download PDF EPUB FB2

A comprehensive book comprising of the most up-to-the-date results on Polyurethane shape memory polymers (theory, mechanisms, fabrication, function, and applications) is strongly recommended to the audience in the field of materials research and by: A comprehensive book comprising of the most up-to-the-date results on Polyurethane shape memory polymers (theory, mechanisms, fabrication, function, and applications) is strongly recommended to the Polyurethane shape memory polymers book in the field of materials research and development.5/5(4).

Effects of Moisture on Electrically Conductive Polyurethane Shape Memory Polymers. Absorption of Moisture in Room-Temperature Water. Electrical Resistivity after Immersion. Glass Transition Temperature after Immersion. Evolution of Glass Transition Temperature upon Thermal Cycling.

Correlation of Moisture Absorption, Loading of Carbon Powder, and Glass Transition Temperature. Porous Polyurethane Shape Memory Polymers. Water as Foaming Agent for Porous SMPs. Formation of Bubbles by Heat Treatment. Thermomechanical Behaviors of SMP Foams.

Yield Surface of Foam. Influence of Storage on Polyurethane SMP Foams. Shape Memory Effects at Micro and Nanoscales. SMP Thin Wires. SMP Micro Beads. Shape memory polymers (SMPs) are some of the most important and valuable engineering materials developed in the last 25 years.

These fascinating materials demonstrate remarkably versatile properties-including capacity for actuation and stimulus responsiveness-that are enabling technologists to develop applications used to explore everything from thCited by: Magnetic and conductive polyurethane shape memory polymers -- ch.

Shape memory polymer nanocomposites -- ch. Porous polyurethane shape memory polymers -- ch. Shape memory effects at micro and nano scales -- ch. Wrinkling atop shape memory polymers -- ch. Medical applications of polyurethane shape memory polymers -- ch. Polyurethane shape-memory polymers.

Huang, Yang Bin | W M Huang | download | B–OK. Download books for free. Find books. 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.

Although this book focuses on one commercially available polyurethane shape memory polymer (SMP), the main features, mechanisms, and applications discussed here apply largely to other SMPs as well. The great potential represented by the many unique features of SMPs make possible many applications, from outer space to deep within the human : W.M.

Huang, Bin Yang, Yong Qing Fu. "One in all, the authors managed to write a book which gives a comprehensive overview on polyurethane shape memory polymer research. Due to the authors’ long-term research experience, I am optimistic that Polyurethane Shape Memory Polymers will be a success : W.M.

Huang, Bin Yang, Yong Qing Fu. It goes on to consider the properties of particular materials such as shape memory polyurethane and environmentally-sensitive polymer gels. The book concludes by assessing potential applications such as wrinkle-free fabrics and smart fabrics providing improved protection and comfort for the wearer.

Shape memory polymers and textiles is a. Shape-memory polymers (SMPs) are a class of smart materials capable of undergoing a programmed shape change upon application of an external stimulus and remembering the original shape. This behavior is known as the shape-memory effect and is a phenomenon observed first in shape-memory alloys, where the memory effect is governed by the thermoelastic behavior of the martensite phase.

The current review collates the knowledge on various applications of shape memory polyurethane (SMP) and its composites with a special focus on human health applications such as the shielding of. At the end of the chapter, a typical SMP, shape memory polyurethane (SMPU), is introduced because of its tremendous advantages compared with other SMPs in terms of applications.

Select 2 - Tm-type shape memory polymers. Book chapter Full text access. ISBN: OCLC Number: Description: 1 online resource (xv, pages): illustrations: Contents: Ch. Introduction --ch. mechanical behavior of polyurethane shape memory polymer --ch.

s of moisture on glass transition temperature and applications --ch. ically conductive polyurethane shape memory polymers --ch. Polyurethane shape memory polymers are thermoresponsive phase-change materials that present the ability to memorize a permanent shape, to be deformed and fixed to a temporary shape under specific.

In this work, we have also shown the relationship between shape memory and property memory effect. Mono and multi-frequency DMA (dynamic mechanical analyzer) tests on virgin and % recovered samples of polyurethane (PU) revealed that the polymer at the end of the shape memory tests regains % of its initial form without regaining some of itsCited by: Advances in shape memory polymers is an essential reference for polymer and textile material students, scientists, designers, engineers and manufacturers.

It is also an invaluable guide for professionals in the biomedical, electronics and engineering industries. The objective of this study was to investigate the changes in the shape-memory-recovery characteristics of thermoplastic polyurethane (TPU), with changes in the microstructure by employing a microcellular foaming process (MCP), which is a physical foaming process [1,2,3,4].The MCP, which is applied to TPU as a matrix, is a method for producing microsized cells having a density of >10 9 cells Author: Chang-Seok Yun, Joo Seong Sohn, Sung Woon Cha.

Segmented shape memory polyurethane and its water vapor transport properties. Designed Monomers and Polymers9 (6), DOI: / Nanda Gopal Sahoo, Yong Chae Jung, Nam Seo Goo, Jae Whan Cho.

Conducting Shape Memory Polyurethane-Polypyrrole Composites for an Electroactive by: Summary: Electroactive shape memory composites were prepared using polyurethane block copolymer and conducting polypyrrole by chemical oxidative polymerization.

The electrical conductivity, thermal and mechanical properties, and morphology of the composites were investigated, and a voltage‐triggered shape memory effect was by: Polyurethane Shape Memory Polymers 1st Edition by W.M.

Huang and Publisher routledge. Save up to 80% by choosing the eTextbook option for ISBN:The print version of this textbook is ISBN:INTRODUCTION. Since their discovery in the s, shape memory polymers (SMPs) have become widely used in applications that require innovative materials.

1, 2 The active shape change response of SMPs has been harnessed to develop smart, stimuli–responsive systems that have utility in a wide range of applications including biomedical, aerospace, textiles, and robotics.

2 The term “shape Cited by: Shape-memory polymers (SMPs) are synthesized with adjustable glass transition temperature (Tg) ranging from to °C, higher than those reported previously. The polyimide containing thermal stable but flexible linkages within the backbone act as reversible phase, and high molecular weight (Mn) is necessary to form physical cross-links as fixed phase of thermoplastic shape-memory by:   1.

Introduction. Shape memory polymers (SMPs) can temporarily and securely hold a deformed shape but recover to an original, “true” shape, in response to an external stimulus such as temperature, pH, etc.

1−8 This unique “shape memory effect” comprises shape fixity and shape recovery (Figure Figure1 1).Shape fixity enables acquisition of a temporary, deformed shape via a Cited by: 1.

1 Introduction to shape memory polymers 1 Introduction 1 Defining shape memory polymers 1 Types of shape memory polymers 4 A typical shape memory polymer: shape memory polyurethanes (SMPUs) 11 Conclusions 13 References 14 2 T m -type shape memory polymers 23 Introduction Polyurethane Shape Memory Polymers: : Huang, W.M., Yang, Bin, Fu, Yong Qing: Libros en idiomas extranjerosFormat: Tapa dura.

Biodegradable shape-memory polymers (BSMP) have arisen as highly promising materials for biomedical applications due to their valuable properties.

Their chemical and structural diversities, low toxicity, biodegradation, and resorption added to their capability to adapt their shape due to their shape-memory property make them excellent materials Author: Leire Ruiz-Rubio, Leyre Pérez-Álvarez, José Luis Vilas-Vilela.

Novel post-condensation crosslinked polyurethane shape-memory polymers were synthesized, characterized, and injection molded into the geometry of a complex medical device. Mechanical characterization results revealed that these materials have mechanical properties that are ideal for many biomedical by:   Buy Polyurethane Shape-Memory Polymers 1 by Huang, W.M., Yang, Bin, Fu, Yong Qing (ISBN: ) from Amazon's Book Store.

Author: W.M. Huang, Bin Yang, Yong Qing Fu. Feasibility study of polyurethane shape-memory polymer actuators for pressure bandage application Manzoor Ahmad1, Jikui Luo1,2 and Mohsen Miraftab1 1 Institute of Materials Research and Innovation, University of Bolton, Bolton BL3 5AB, UK 2 Department of Information Science and Electron Engineering, Zhejiang University, Hangzhou   Shape-memory polymers (SMPs) offer a number of potential technical advantages that surpass other shape-memory materials such as shape-memory metallic alloys and shape-memory ceramics.

The advantages include high recoverable strain (up to %), low density, ease of processing and the ability to tailor the recovery temperature, programmable and Cited by: Properties and Applications of Polyurethane-Series Shape Memory Polymer Development of materials with advance functions, such as piezoelectric or mechanochemical materials, has been flourishing in recent years, as well as their application.

We are investigating applications of materials of this Size: KB.