The Addition of an Ultra-Small Amount of Black Phosphorous Quantum Dots Endow Self-Healing Polyurethane with a Biomimetic Intelligent Response

This study explores new applications of black phosphorus quantum dots (BPQDs) by adding them to self-healing material systems for the first time. Self-healing polyurethane with an ultra-small amount of BPQDs has biomimetic intelligent responsiveness and achieves balance between its mechanical and se...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2023-10, Vol.44 (19), p.e2300286-e2300286
Main Authors: Zhong, Jia-Hui, Zhou, Yan, Tian, Xin-Xin, Sun, Ying-Lu, Shi, Bi-Ru, Zhang, Zhen-Yu, Zhang, Wen-Hua, Liu, Xiang-Dong, Yang, Yu-Ming
Format: Article
Language:English
Subjects:
Biomimetic materials
Biomimetics
Bone healing
Composite materials
Elongation
Fracture strength
Healing
Hydrophobicity
Mechanical properties
Phosphorus
Polyurethane
Polyurethane resins
Quantum dots
Wearable technology
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Summary:This study explores new applications of black phosphorus quantum dots (BPQDs) by adding them to self-healing material systems for the first time. Self-healing polyurethane with an ultra-small amount of BPQDs has biomimetic intelligent responsiveness and achieves balance between its mechanical and self-healing properties. By adding 0.0001 wt% BPQDs to self-healing polyurethane, the fracture strength of the material increases from 3.0 to 12.3 MPa, and the elongation at break also increases from 750% to 860%. Meanwhile, the self-healing efficiency remains at 98%. The addition of BPQDs significantly improves the deformation recovery ability of the composite materials and transforms the surface of self-healing polyurethane from hydrophilic to hydrophobic, making it suitable for applications in fields such as electronic skin and flexible wearable devices. This study provides a simple and feasible strategy for endowing self-healing materials with biomimetic intelligent responsiveness using a small amount of BPQDs.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.202300286