Magnetic Shape Memory Polymers with Integrated Multifunctional Shape Manipulation

By Qiji Ze, Xiao Kuang, Shuai Wu, Janet Wong, S. Montgomery, Rundong Zhang, Joshua M. Kovitz, Fengyuan Yang, H. Jerry Qi, Ruike Renee Zhao. Advances in Materials, 2019

661 citations recorded by the source corpus.

Shape‐programmable soft materials that exhibit integrated multifunctional shape manipulations, including reprogrammable, untethered, fast, and reversible shape transformation and locking, are highly desirable for a plethora of applications, including soft robotics, morphing structures, and biomedical devices. Despite recent progress, it remains challenging to achieve multiple shape manipulations in one material system. Here, a novel magnetic shape memory polymer composite is reported to achieve this. The composite consists of two types of magnetic particles in an amorphous shape memory polymer matrix. The matrix softens via magnetic inductive heating of low‐coercivity particles, and high‐remanence particles with reprogrammable magnetization profiles drive the rapid and reversible shape change under actuation magnetic fields. Once cooled, the actuated shape can be locked. Additionally, varying the particle loadings for heating enables sequential actuation. The integrated multifunctional shape manipulations are further exploited for applications including soft magnetic grippers with large grabbing force, reconfigurable antennas, and sequential logic for computing.

Subfields: Biomedical Engineering, Mechanical Engineering, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/8ccfeb4b281627c73d46d8490ec136b59877334f

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. A. Bastola
2. Mokarram Hossain
3. Shuai Wu
4. Cole Zemelka
5. Rundong Zhang
6. H. Jerry Qi
7. Ruike Renee Zhao
8. Qiji Ze

In Mechanical Engineering

1. Mokarram Hossain
2. A. Bastola
3. Shuai Wu
4. H. Jerry Qi
5. Ruike Renee Zhao
6. Qiji Ze

In Polymers and Plastics

1. Xiao Kuang
2. H. Jerry Qi
3. Mokarram Hossain
4. A. Bastola

Citations in the corpus

• Magneto‐Mechanical Metamaterials with Widely Tunable Mechanical Properties and Acoustic Bandgaps (2020, methodology): “The metamaterials can obtain additional functionality by using M-SMPs,[20] which have the advantage of shape locking due to the shape memory effect and tunable stiffness by temperature.”
• The shape – morphing performance of magnetoactive soft materials (2021, methodology): “Furthermore, the integration of both soft-magnetic and hard-magnetic fillers into a single MSM device is highly interesting and provides a complex phenomenon as reported in recent studies [94,121], and it is therefore arguably one of the potential dedicated areas in the near future.”