A Photoorganizable Triple Shape Memory Polymer for Deployable Devices

Small ◽  
2021 ◽  
pp. 2106443
Author(s):  
Jiahao Sun ◽  
Bo Peng ◽  
Yao Lu ◽  
Xiao Zhang ◽  
Jia Wei ◽  
...  
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymer ◽  
Triple Shape Memory

scholarly journals In Situ Generation of Green Hybrid Nanofibrillar Polymer-Polymer Composites—A Novel Approach to the Triple Shape Memory Polymer Formation

Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1900
Author(s):  
Ramin Hosseinnezhad ◽  
Iurii Vozniak ◽  
Fahmi Zaïri
Keyword(s):  
Polymer Blends ◽  
Shape Memory ◽  
Shape Memory Polymer ◽  
Cellulose Nanofibers ◽  
Polymeric Materials ◽  
Novel Approach ◽  
Phase Transition Temperatures ◽  
Triple Shape Memory

The paper discusses the possibility of using in situ generated hybrid polymer-polymer nanocomposites as polymeric materials with triple shape memory, which, unlike conventional polymer blends with triple shape memory, are characterized by fully separated phase transition temperatures and strongest bonding between the polymer blends phase interfaces which are critical to the shape fixing and recovery. This was demonstrated using the three-component system polylactide/polybutylene adipateterephthalate/cellulose nanofibers (PLA/PBAT/CNFs). The role of in situ generated PBAT nanofibers and CNFs in the formation of efficient physical crosslinks at PLA-PBAT, PLA-CNF and PBAT-CNF interfaces and the effect of CNFs on the PBAT fibrillation and crystallization processes were elucidated. The in situ generated composites showed drastically higher values of strain recovery ratios, strain fixity ratios, faster recovery rate and better mechanical properties compared to the blend.

Digital Light Processing 3D Printing of Triple Shape Memory Polymer for Sequential Shape Shifting

2019 ◽  
Vol 1 (4) ◽  
pp. 410-417 ◽  
Author(s):  
Bangan Peng ◽  
Yunchong Yang ◽  
Kai Gu ◽  
Eric J. Amis ◽  
Kevin A. Cavicchi
Keyword(s):  
3D Printing ◽  
Shape Memory ◽  
Shape Memory Polymer ◽  
Digital Light Processing ◽  
Triple Shape Memory

A tough shape memory polymer with triple-shape memory and two-way shape memory properties

2014 ◽  
Vol 2 (13) ◽  
pp. 4771 ◽  
Author(s):  
Yongkang Bai ◽  
Xinrui Zhang ◽  
Qihua Wang ◽  
Tingmei Wang
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymer ◽  
Shape Memory Properties ◽  
Triple Shape Memory

A facile strategy to fabricate robust triple-shape memory polymer

2019 ◽  
Vol 257 ◽  
pp. 126753 ◽  
Author(s):  
Kai Yang ◽  
Jiang Du ◽  
Zhenlei Zhang ◽  
Tianbin Ren
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymer ◽  
Triple Shape Memory

scholarly journals PU/PMMA composites synthesized by reaction-induced phase separation: a general approach to achieve a shape memory effect

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 33701-33707 ◽  
Author(s):  
Yufen Zhang ◽  
Weiwei Li ◽  
Ronglan Wu ◽  
Wei Wang
Keyword(s):  
Phase Separation ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Polymethyl Methacrylate ◽  
Memory Effect ◽  
Shape Memory Polymer ◽  
Polymer Composition ◽  
Triple Shape Memory

We report a study on the triple-shape memory polymer composition of polyurethane/polymethyl methacrylate (PU/PMMA) synthesized using reaction-induced phase separation.

Clay montmorillonite-poly(e-caprolactone) electrospun microfiber/epoxy composites with triple shape memory effect

2018 ◽  
Vol 47 (1) ◽  
pp. 29-37 ◽  
Author(s):  
Yubing Dong ◽  
Chen Qian ◽  
Jian Lu ◽  
Yaqin Fu
Keyword(s):  
Electron Microscope ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Shape Memory Polymer ◽  
Thermomechanical Analysis ◽  
Mechanical Analysis ◽  
Content Type ◽  
Fiber Membranes ◽  
Triple Shape Memory

Purpose Epoxy (EP) and polye-caprolactone (PCL) are typical dual-shape memory polymer (DSMP). To get excellent triple-shape memory effect (TSME) polymer composites which are made from EP and PCL. Miscible PCL/EP blend composites have been investigated and compared to the TSMEs with electrospun PCL microfiber membranes/EP composites. Clay montmorillonite (MMT)-modified electrospun PCL microfiber membranes were prepared to improve the shape memory fixities of electrospun PCL microfiber membranes/EP composites. Design/methodology/approach The morphologies of electrospun PCL microfiber membranes and the cross section of PCL/EP composites were studied using a field emission scanning electron microscope (FE-SEM), and the existence of MMT was confirmed by a transmission electron microscope. Thermal mechanical properties were observed by a differential scanning calorimeter (DSC) and a dynamic thermomechanical analysis machine, and the TSMEs were also determined through dynamic mechanical analysis. Findings Results indicate that the TSMEs of electrospun PCL microfiber membranes/EP composites were excellent, whereas the TSMEs of PCL/EP blend composites were poor. The TSMEs of PCL electrospun microfiber membranes/EP composites significantly improved with the addition of the PCL electrospun microfiber modified with moderate MMT. Research limitations/implications Adding a moderate content of MMT into the electrospun PCL fibers, could improve the TSME of the PCL fiber membranes/EP composites. This study was to create a simple and effective method that can be applied to improve the performance of other SMP. Originality/value A novel triple-shape memory composite were made from dual-shape memory EP and electrospun PCL fiber membranes.

Multidirectional Triple-Shape-Memory Polymer by Tunable Cross-linking and Crystallization

2020 ◽  
Vol 12 (5) ◽  
pp. 6426-6435 ◽  
Author(s):  
Ming Tian ◽  
Weisheng Gao ◽  
Jing Hu ◽  
Xiaowei Xu ◽  
Nanying Ning ◽  
...  
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymer ◽  
Cross Linking ◽  
Triple Shape Memory
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