Vascular smooth muscle-inspired architecture enables soft yet tough self-healing materials for durable capacitive strain-sensor
Nanjing Forestry University · Nanjing University of Science and Technology · +2 more institutions
Abstract
Abstract Catastrophically mechanical failure of soft self-healing materials is unavoidable due to their inherently poor resistance to crack propagation. Here, with a model system, i.e., soft self-healing polyurea, we present a biomimetic strategy of surpassing trade-off between soft self-healing and high fracture toughness, enabling the conversion of soft and weak into soft yet tough self-healing material. Such an achievement is inspired by vascular smooth muscles, where core-shell structured Galinstan micro-droplets are introduced through molecularly interfacial metal-coordinated assembly, resulting in an increased crack-resistant strain and fracture toughness of 12.2 and 34.9 times without sacrificing…
Citation impact
- FWCI
- 21.50
- Percentile
- 100%
- References
- 67
Authors
9- FSFuyao SunCorresponding
Nanjing Forestry University, Nanjing University of Science and Technology
- LLLongfei Liu
Nanjing University of Science and Technology
- TLTong Liu
Nanjing Institute of Technology, Nanjing University of Science and Technology
- XWXuebin Wang
Nanjing University of Science and Technology, Nanjing University
- QQQi Qi
Nanjing University of Science and Technology
Topics & keywords
- Materials science
- Capacitive sensing
- Self-healing
- Polyurea
- Composite material
- Fracture toughness
- Toughness
- Strain gauge
Funding
- NSNational Science Foundation
- NNNational Natural Science Foundation of ChinaAwards: 52072177, 2022YFB3808800, 52202101, 52272084, No. 52072177, No. 52272084
- GOGovernment of Jiangsu Province
- NKNational Key Research and Development Program of ChinaAwards: No. 2022YFB3808800, 2022YFB3808800, Grant No. 2022YFB3808800