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A Stiffness Tunable Self-Healing Composite Comprising PDMS and Titanium Dioxide AITranslate

Zenghui Zhao; Sufeng Zhu; Bo Li; Chenguang Niu; Yu Tong; Ning Ma; Xufeng Dong; Baoguo Han; Hao Huang; Min Qi
Dalian University of Technology; Dalian University of Technology; Xi’an Jiaotong University; Taiyuan University of Technology; Dalian University of Technology; Dalian University of Technology; Dalian University of Technology; Dalian University of Technology; Dalian University of Technology; Dalian University of Technology
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Publisher: ACS
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Abstract AITranslate

It is a challenge to make artificial muscles with tunable stiffness capacities. The key is to develop a composite with tunable stiffness as well as self-healing properties and stretchability. In this work, we design a composite with amorphous TiO2 particles and poly(dimethylsiloxane) (PDMS) matrix cross-linked with metal–ligand interactions. The PDMS matrix enables the composite to have self-healing properties and excellent stretchability, while the interactions between the TiO2 particles can be enhanced by applying an electric field, which provides the composite with an electric field-controlled stiffness. The tunable storage modulus increased by 180% at 4 kV/mm. The stiffness of a simply supported beam increased by 10.8% at 6 kV with respect to that at 0 kV. Based on its tunable stiffness, self-healing properties and stretchability, this composite can mimic many functions of human muscles and has promising applications as an artificial muscle.

KeyWords AITranslate

selfhealing tunable stiffness stretchability electrorheological elastomer artificial muscles
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DOI：https://doi.org/10.1021/acsapm.1c01937

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Citation Information:

It is a challenge to make artificial muscles with tunable stiffness capacities. The key is to develop a composite with tunable stiffness as well as self-healing properties and stretchability. In this work, we design a composite with amorphous TiO2 particles and poly(dimethylsiloxane) (PDMS) matrix cross-linked with metal–ligand interactions. The PDMS matrix enables the composite to have self-healing properties and excellent stretchability, while the interactions between the TiO2 particles can be enhanced by applying an electric field, which provides the composite with an electric field-controlled stiffness. The tunable storage modulus increased by 180% at 4 kV/mm. The stiffness of a simply supported beam increased by 10.8% at 6 kV with respect to that at 0 kV. Based on its tunable stiffness, self-healing properties and stretchability, this composite can mimic many functions of human muscles and has promising applications as an artificial muscle.

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GB/T 7714-2015 [1] Zenghui Zhao, Sufeng Zhu, Bo Li, et al. ACS Applied Polymer Materials, 2022(4). DOI:10.1021/acsapm.1c01937.
MLA [1] Zenghui Zhao, et al., ACS Applied Polymer Materials, no. 4, 2022, https://doi.org/10.1021/acsapm.1c01937.
APA [1] Zenghui Zhao, Sufeng Zhu, Bo Li, Chenguang Niu, Yu Tong, Ning Ma, Xufeng Dong, Baoguo Han, Hao Huang, & Min Qi. (2022). ACS Applied Polymer Materials(4). https://doi.org/10.1021/acsapm.1c01937
IEEE [1] Zenghui Zhao, Sufeng Zhu, Bo Li, Chenguang Niu, Yu Tong, Ning Ma, Xufeng Dong, Baoguo Han, Hao Huang, and Min Qi, ACS Applied Polymer Materials, no. 4, 2022, doi: 10.1021/acsapm.1c01937. keywords: {selfhealing;tunable stiffness;stretchability;electrorheological elastomer;artificial muscles}