scholarly journals Thermomechanical Properties and Shape-Memory Behavior of Bisphenol A Diacrylate-Based Shape-Memory Polymers

2015 ◽  
Vol 217 (1) ◽  
pp. 39-50 ◽  
Author(s):  
David Santiago ◽  
Silvia De la Flor ◽  
Francesc Ferrando ◽  
Xavier Ramis ◽  
Marco Sangermano
Keyword(s):  
Bisphenol A ◽  
Shape Memory ◽  
Shape Memory Polymers ◽  
Thermomechanical Properties ◽  
Shape Memory Behavior

Polyethylenes Functionalized with Ureidopyrimidone: Synthesis, Thermomechanical Properties and Shape Memory Behavior

2021 ◽  
Author(s):  
Honggang Mei ◽  
Bingjie Zhao ◽  
Huaming Wang ◽  
Lei Li ◽  
Sixun Zheng
Keyword(s):  
Hydrogen Bonds ◽  
Bisphenol A ◽  
Shape Memory ◽  
Thermomechanical Properties ◽  
Diglycidyl Ether ◽  
Shape Memory Behavior ◽  
Step Growth ◽  
Step Growth Polymerization

In this contribution, we reported an approach to functionalize polyethylene with quadruple hydrogen bonds. First, a poly(hydroxyether ester) (PHEE) was synthesized via step-growth polymerization of diglycidyl ether of bisphenol A...

Mechanical and Shape Memory Behavior of Shape Memory Polymer/Carbon Fiber Composite Materials

2015 ◽  
Vol 813 ◽  
pp. 250-257 ◽  
Author(s):  
Zhen Qing Wang ◽  
Jian Ming Guo ◽  
Xiao Jun Tang ◽  
Lu Zhang ◽  
Wen Yan Liang
Keyword(s):  
Carbon Fiber ◽  
Shape Memory ◽  
Average Length ◽  
Fiber Composite ◽  
Shape Memory Polymers ◽  
Weight Fraction ◽  
Shipping Industry ◽  
Short Carbon Fiber ◽  
Shape Memory Behavior ◽  
Short Carbon

Shape memory polymers (SMPs) have drawn wide attention of many researchers for its potential applications to shipping industry, aerospace, bionics engineering and mechanical engineering. Shape memory polymers composites (SMPCs) have ability to improve the properties and obtain attain new functions of shape memory polymers. In this paper, trans-1, 4-polyisoprene reinforced by carbon fiber is developed to improve the mechanical weakness of trans-1, 4-polyisoprene bulk. Composites with carbon fiber weight fraction of 5%, 10%, and 15% are fabricated by casting samples with an average length of 2 mm. The mechanical property of the trans-1, 4-polyisoprene reinforced by short carbon fiber is evaluated and the effects of short carbon fiber on shape memory behavior are investigated. The results indicate that there is an optimum fiber weight fraction between 5 and 15 wt% where exists an extremely low recovery ratio, re-crystallizing temperatures (Tc) and an extremely high tensile stress.

Investigation of curing kinetics and internal strains to enhance performances of Bisphenol A based shape memory polymers

Materialia ◽  
2021 ◽  
pp. 101264
Author(s):  
L. H. Janitha Jeewantha ◽  
K.D.C. Emmanuel ◽  
H.M.C.M. Herath ◽  
J.A. Epaarachchi ◽  
M.M. Islam ◽  
...  
Keyword(s):  
Bisphenol A ◽  
Shape Memory ◽  
Shape Memory Polymers ◽  
Curing Kinetics ◽  
Internal Strains

Effect of crosslinking and long-term storage on the shape-memory behavior of (meth)acrylate-based shape-memory polymers

Soft Matter ◽  
2012 ◽  
Vol 8 (28) ◽  
pp. 7381 ◽  
Author(s):  
Alicia M. Ortega ◽  
Christopher M. Yakacki ◽  
Sean A. Dixon ◽  
Roxanne Likos ◽  
Alan R. Greenberg ◽  
...  
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymers ◽  
Shape Memory Behavior ◽  
Long Term Storage ◽  
Term Storage

Effects of Discontinuous Fiber Reinforcement on the Mechanical and Thermomechanical Properties of a Shape Memory Polymer

2007 ◽  
Author(s):  
Michael B. Lyons ◽  
Robin Shandas
Keyword(s):  
Shape Memory ◽  
Production Cost ◽  
Shape Memory Polymer ◽  
Shape Memory Polymers ◽  
Thermomechanical Properties ◽  
Large Strains ◽  
Cardiovascular Stents ◽  
Clot Removal ◽  
Discontinuous Fiber ◽  
Removal System

Over the last few years, we have developed shape memory polymers (SMPs) with several properties suitable for use in minimally-invasive biomedical devices. These properties include biocompatibility, the ability to fully recover large strains, the potential to serve as medication reservoirs for drug delivery, and low production cost. We and others have proposed use of shape memory polymers for various applications including cardiovascular stents, an endovascular clot removal system, and a self-tying suture.

A simplified constitutive model for predicting shape memory polymers deformation behavior

2015 ◽  
Vol 04 (01) ◽  
pp. 1550001 ◽  
Author(s):  
Yunxin Li ◽  
Siu-Siu Guo ◽  
Yuhao He ◽  
Zishun Liu
Keyword(s):  
Shape Memory ◽  
Deformation Behavior ◽  
Constitutive Models ◽  
Shape Memory Polymers ◽  
Element Model ◽  
Small Strain ◽  
Thermomechanical Properties ◽  
Mechanical Coupling ◽  
Functional Textiles ◽  
Complex Forms

Shape memory polymers (SMPs) can keep a temporary shape after pre-deformation at a higher temperature and subsequent cooling. When they are reheated, their original shapes can be recovered. Such special characteristics of SMPs make them widely used in aerospace structures, biomedical devices, functional textiles and other devices. Increasing usefulness of SMPs motivates us to further understand their thermomechanical properties and deformation behavior, of which the development of appropriate constitutive models for SMPs is imperative. There is much work in literatures that address constitutive models of the thermo-mechanical coupling in SMPs. However, due to their complex forms, it is difficult to apply these constitutive models in the real world. In this paper, a three-element model with simple form is proposed to investigate the thermo-mechanical small strain (within 10%) behavior of polyurethane under uniaxial tension. Two different cases of heated recovery are considered: (1) unconstrained free strain recovery and (2) stress recovery under full constraint at a strain level fixed during low temperature unloading. To validate the model, simulated and predicted results are compared with Tobushi's experimental results and good agreement can be observed.

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