Novel degradable compound shape-memory-polymer blend: Mechanical and shape-memory properties

Novel liquid crystalline shape memory polymer composites with interesting staging-responsive shape memory properties were successfully prepared. The liquid crystalline shape memory polymer composites maintain the intrinsic reversible liquid crystalline properties of Azo11.

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Thermodynamic and shape memory properties of TPI/HDPE hybrid shape memory polymer

Polymer Testing ◽

10.1016/j.polymertesting.2019.106257 ◽

2020 ◽

Vol 81 ◽

pp. 106257 ◽

Cited By ~ 3

Author(s):

Jianxin Teng ◽

Zhenqing Wang ◽

Jingbiao Liu ◽

Xiaoyu Sun

Keyword(s):

Shape Memory ◽

Shape Memory Polymer ◽

Shape Memory Properties

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Shape Memory Properties of Ti-Ni Shape Memory Alloy / Shape Memory Polymer Composites Using Additive Manufacturing

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1016.697 ◽

2021 ◽

Vol 1016 ◽

pp. 697-701

Author(s):

Kazuhiro Kitamura

Keyword(s):

Shape Memory ◽

Transformation Temperature ◽

Shape Recovery ◽

Shape Memory Polymer ◽

Shape Memory Polymers ◽

The Other ◽

3D Printer ◽

Shape Memory Material ◽

Polymer Resin ◽

Shape Memory Properties

Shape memory alloys (SMAs) have the disadvantage that cooling is difficult and the actuating speed during cooling is slow. To resolve this problem, shape memory material actuators that operate only with heating is required. SMAs are characterized by a low apparent Young's modulus below the transformation temperature and a strong shape recovery force above the reverse transformation temperature. Alternatively, shape memory polymers (SMPs) have two properties: shape fixability and shape recovery. The SMPs are hardened below the glass transition (Tg) temperature and the material is recovered to memorized shape above the Tg temperature. The other hand, 3D printer is a machine that can directly output a 3D-designed product designed by a computer in 3D, and molded materials such as polymer, resin, metal, and ceramics. In this research, we developed the SMC of SMA wire and SMP sheet using adhesive that develops actuates into two shapes only by heating.

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An investigation on electro-induced shape memory performances of CE/EP/CB/SCF composites applied for deployable structure

Journal of Polymer Engineering ◽

10.1515/polyeng-2019-0212 ◽

2020 ◽

Vol 40 (3) ◽

pp. 203-210 ◽

Cited By ~ 1

Author(s):

Tianning Ren ◽

Guangming Zhu ◽

Yi Liu ◽

Xiao Hou

Keyword(s):

Carbon Black ◽

Shape Memory ◽

Memory Performance ◽

Shape Memory Polymer ◽

Content Increase ◽

Deployable Structure ◽

Shape Memory Properties ◽

Shape Memory Composites ◽

Shape Memory Composite ◽

Short Carbon

AbstractThe objective of this work is to investigate the thermomechanical, electrical, and shape-memory properties of bisphenol A-type cyanate ester (BACE)/polybutadiene epoxy (PBEP)/carbon black (CB) composite and assess its feasibility applied for deployable structure. Using a BACE/PBEP polymer as matrix and superconducting carbon black (CB) and short carbon fibers (SCFs) as reinforcing material, the shape memory composite was prepared by compression molding. The effects of CB and SCF content on the shape memory properties of the composites were investigated. The results demonstrate that the glass transition temperature (Tg) and the storage modulus of the composites increases as SCFs content increase. Because of the synergic effect of CB and SCFs, the shape memory composites exhibit excellent shape memory performance, and the shape recovery ratio is about 100%. With the increase in SCF content, the recovery time decreased, and the volume electrical resistivity of the composite could decrease by adding a small amount of SCFs. According to the above results, a shape memory polymer composite deployable structure was prepared.

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