Stretchable composites with high oxide loading

Yinglin Zhi, Yan Shao, Rui Xia, Weikun Lin, Daohang Cai, Fuxing Zhao, Jiufeng Dong, Qingxian Li, Zihao Wang, Lixuan Li, Long Gu, Peng Tian, Zhen He, Jinlong Wang, Guiling Ning, Baowen Li, Canhui Yang, Hong Wang, Shuhong Yu and Yanhao Yu ()
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Yinglin Zhi: Southern University of Science and Technology
Yan Shao: Southern University of Science and Technology
Rui Xia: Southern University of Science and Technology
Weikun Lin: Southern University of Science and Technology
Daohang Cai: Southern University of Science and Technology
Fuxing Zhao: Southern University of Science and Technology
Jiufeng Dong: Southern University of Science and Technology
Qingxian Li: Southern University of Science and Technology
Zihao Wang: Dalian University of Technology
Lixuan Li: Southern University of Science and Technology
Long Gu: Xidian University
Peng Tian: Dalian University of Technology
Zhen He: Southern University of Science and Technology
Jinlong Wang: Southern University of Science and Technology
Guiling Ning: Dalian University of Technology
Baowen Li: Southern University of Science and Technology
Canhui Yang: Southern University of Science and Technology
Hong Wang: Southern University of Science and Technology
Shuhong Yu: Southern University of Science and Technology
Yanhao Yu: Southern University of Science and Technology

Nature Communications, 2025, vol. 16, issue 1, 1-11

Abstract: Abstract Oxide/elastomer composites combine the functional attributes of metal oxides with the mechanical deformability of elastomers, but face the challenge of balancing oxide loading and stretchability as ceramic fillers decrease the entropic elasticity of polymer networks. Here, we report an interfacial composite design that enables high oxide fraction and large stretchability by minimizing the contact area yet maximizing the binding strength between the oxide and elastomer. The elongation at break for an interfacial composite with 80 vol% of oxides reaches 500%, whereas that of a regular bulk composite with the same oxide fraction is 20%. These composites are synthesized based on a Marangoni co-assembly process with tuned interfacial tension and reaction at the water-oil interface. The assembly chemistry is nearly independent of oxides’ sizes, compositions, geometries, and functions, making this interfacial structure broadly applicable to optical, electric, magnetic, and thermal-conducting oxides. Compared to bulk composites, the interfacial composites deliver larger magnetic actuation, lower thermal resistance, and higher conformability with nonplanar surfaces, providing rich implications for designing intelligent and electronic systems.

Date: 2025
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DOI: 10.1038/s41467-025-58844-w

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