General Strategy to Fabricate Highly Filled Microcomposite Hydrogels with High Mechanical Strength and Stiffness
| Autor: | Ziguang Zhao, Tianyi Zhao, Ruochen Fang, Yusi Liu, Mingjie Liu, Wenwei Lei, Chuangqi Zhao, Lie Chen, Zhandong Gu, Qinfeng Rong, Yichao Xu |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Stiffness 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences Brittleness Compressive strength Homogeneous Mechanical strength Self-healing hydrogels medicine Ultrasonic assisted General Materials Science medicine.symptom Composite material 0210 nano-technology Elastic modulus |
| Zdroj: | ACS applied materialsinterfaces. 10(4) |
| ISSN: | 1944-8252 |
| Popis: | Conventional synthetic hydrogels are intrinsically soft and brittle, which severely limits the scope of their applications. A variety of approaches have been proposed to improve the mechanical strength of hydrogels. However, a facile and ubiquitous strategy to prepare hydrogels with high mechanical strength and stiffness is still a challenge. Here, we report a general strategy to prepare highly filled microcomposite hydrogels with high mechanical performance using an ultrasonic assisted strategy. The microparticles were dispersed in the polymer network evenly, resulting in homogeneous and closely packed structures. The as-prepared hydrogels with extraordinary mechanical performance can endure compressive stress up to 20 MPa (at 75% strain) and exhibit high stiffness (elastic modulus is around 18 MPa). By using our comprehensive strategy, different hydrogels can enhance their mechanical strength and stiffness by doping various microparticles, leading to a much wider variety of applications. |
| Databáze: | OpenAIRE |
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