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3D-Printable Elastomers for Real-Time Autonomous Self-Healing in Soft Devices.
ACS Mater Lett
January 2025
Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, Ohio 45433, United States.
Photocurable self-healing elastomers are promising candidates for producing complex soft devices that can mend damage. However, the practicality of these materials is limited by reliance on external stimuli, custom synthesis, manual realignment, and multihour healing cycles. This paper introduces a tough 3D-printable hybrid acrylate/thiol-ene elastomer (prepared with commercially available precursors) that exhibits nearly instantaneous damage repair in the absence of external stimuli.
View Article and Find Full Text PDFChemodynamic covalent adaptable network-induced robust, self-healing, and degradable fluorescent elastomers for multicolor information encryption.
Chem Sci
December 2024
Advanced Technology Research Institute (Jinan), Beijing Institute of Technology Jinan 250300 China
Elastomers are of great significance in developing smart materials for information encryption, and their unique self-healing and highly flexible properties provide innovative solutions to enhance security and anti-counterfeiting effectiveness. However, challenges remain in the multifunctional combination of mechanical properties, self-healing, degradability, and luminescence of these materials. Herein, a chemodynamic covalent adaptable network (CCAN)-induced robust, self-healing, and degradable fluorescent elastomer is proposed.
View Article and Find Full Text PDFThermally Healable Polyurethane Elastomers Based on Biomass Polyester Polyol from Isosorbide and Dimer Fatty Acid.
Polymers (Basel)
December 2024
C & S Partner, Hanam Technovalley U1 Center, Hanam-si 12982, Republic of Korea.
A fully bio-based polyester polyol based on isosorbide (ISB) and dimer fatty acid (DA) was synthesized through esterification. An ISB-based polyester polyol (DIS) was developed to synthesize a bio-based polyurethane elastomer (PUE) with enhanced mechanical and self-healing properties. The rigid bicyclic structure of ISB improved tensile properties, while the urethane bonds formed between the hydroxyl groups in ISB and isocyanate exhibited reversible characteristics at elevated temperatures, significantly enhancing the self-healing performance of DIS-based PUE compared to the control PUE (self-healing efficiency: 98% for DIS-based PUE vs.
View Article and Find Full Text PDFStretchable, Self-Healable, and Durable Conductive Elastomer Derived from a Rationally Designed Covalently Cross-Linked Network.
ACS Appl Mater Interfaces
January 2025
School of Medicine, Huanghe Science and Technology University, Zhengzhou 450061, P. R. China.
Silver nanowire (Ag NW)-based elastic conductors have been considered a promising candidate for key stretchable electrodes in wearable devices. However, the weak interface interaction of Ag NWs and elastic substrates leads to poor durability of electronic devices. For everyday usage, an additional self-healing ability is required to resist scratching and damage.
View Article and Find Full Text PDFSelf-Healing Elastomers and Coatings via Metal Coordination Bonds.
Chemistry
January 2025
Key lab of organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China.
Self-healing materials can recover the materials from physical damage, and extend the life of equipment. Metal coordination bonds are supramolecular interactions with tunable stability and sensitivity to external stimuli, which are crucial for developing self-healing materials. Incorporating metal coordination bonds into elastomers and coatings can enable materials to repair damage and enhance material performance.
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