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Dual Physically Cross-Linked Double Network Hydrogels with High Mechanical Strength, Fatigue Resistance, Notch-Insensitivity, and Self-Healing Properties
Abstract
Double-network (DN) hydrogels with high strength and toughness have been developed as promising materials. Herein, we explored a dual physically cross-linked polyacrylamide/xanthan gum (PAM/XG) DN hydrogel. The nonchemically cross-linked PAM/XG DN hydrogels exhibited fracture stresses as high as 3.64 MPa (13 times higher than the pure PAM single network hydrogel) and compressive stresses at 99% strain of more than 50 MPa. The hydrogels could restore their original shapes after continuously loading-unloading tensile and compressive cyclic tests. In addition, the PAM/XG DN hydrogels demonstrated excellent fatigue resistance, notch-insensitivity, high stability in different harsh environments, and remarkable self-healing properties, which might result from their distinctive physical-cross-linking structures. The attenuated total reflectance infrared spectroscopy (ATR-IR) and dynamic thermogravimetric analysis (TGA) results indicated that there were no chemical bonds (only hydrogen bonds) between the XG and PAM networks. The PAM/XG DN hydrogel synthesis offers a new avenue for the design and construction of DN systems, broadening current research and applications of hydrogels with excellent mechanical properties.
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Citations
Cited by
Bioinspired fabrication of high strength hydrogels from non-covalent interactions
Wang, W., Zhang, Y., & Liu, W. (2017) · Progress in Polymer Science · doi:10.1016/j.progpolymsci.2017.04.001 · Cited by 517
Xia, S., Song, S., Jia, F., & Gao, G. (2019) · Journal of Materials Chemistry B · doi:10.1039/c9tb01039d · Cited by 349
Liu, H., Wang, X., Cao, Y., Yang, Y., Yang, Y., Gao, Y., Ma, Z., Wang, J., Wang, W., & Wu, D. (2020) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.0c06067 · Cited by 300
Long, T., Li, Y., Fang, X., & Sun, J. (2018) · Advanced Functional Materials · doi:10.1002/adfm.201804416 · Cited by 283
Hydrophobic association hydrogels with excellent mechanical and self-healing properties
Jiang, H., Duan, L., Ren, X., & Gao, G. (2019) · European Polymer Journal · doi:10.1016/j.eurpolymj.2018.10.031 · Cited by 257
Metadata
- Authors
- Yuan, N., Xu, L., Wang, H., Fu, Y., Zhang, Z., Liu, L., Wang, C., Zhao, J., & Rong, J.
- Venue
- ACS Applied Materials & Interfaces
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-11-30
- Volume
- 8
- Issue
- 49
- Pages
- 34034-34044
- ISSN
- 1944-8244 (ISSN-L)
- 1944-8252
- OpenAlex
- W2550962678
- Cited by
- 244
- References
- 0
- FWCI
- 8.22
- Type
- journal article
- Language
- en
- Open access
- closed
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- Yuan, N., Xu, L., Wang, H., Fu, Y., Zhang, Z., Liu, L., Wang, C., Zhao, J., & Rong, J. (2016). Dual Physically Cross-Linked Double Network Hydrogels with High Mechanical Strength, Fatigue Resistance, Notch-Insensitivity, and Self-Healing Properties. ACS Applied Materials & Interfaces. https://doi.org/10.1021/acsami.6b12243
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