协同酸盐交叉连接和链条纠,用于机械坚固和富含水的水凝
Haidi Wu1, Qin Su1, Ruigang Zhou2
1School of Chemistry and Materials, Yangzhou University, No 180, Road Siwangting, Yangzhou, Jiangsu 225002, China.
Journal of colloid and interface science
|September 11, 2025
概括
研究人员使用一种新的链条纠和动态交联方法开发了强大的,高度水合的聚乙烯醇) 水凝. 这些先进的生物材料为可穿戴电子产品提供了卓越的机械性能和稳定的导电性.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 材料工程 材料工程 材料工程
背景情况:
- 由于相互矛盾的要求,在水凝中达到高含水量和机械强度是具有挑战性的.
- 传统的强化方法往往会损害水凝水化.
研究的目的:
- 开发一种新的战略,用于制造具有高含水量和机械强度的水凝.
- 为了提高性能,设计具有双增强架构的聚乙烯醇水凝.
主要方法:
- 在聚乙烯醇水凝中使用了一种链纠介导的动态交联策略.
- 采用了层次工程,从糖醇机凝开始,并通过溶剂交换诱导玻酸乙酸键.
- 建立了一个双增强架构,结合了动态的酸乙键和宏分子纠.
主要成果:
- 获得了含水量为85.5-93.4%的水凝和优良的机械性能 (370kPa模量,4.3MPa抗拉强度,27.2MJ/m3性,1447.9%裂变应变).
- 通过动态键的可逆性和纠来证明了多尺度的能量消散.
- 保持稳定的离子导电性和生物相容性,使其能够作为符合电极用于心电图信号捕获.
结论:
- 开发的方法成功地将类似组织的功能与水凝中的工程性能相协调.
- 这种方法为先进的生物材料提供了一个简单的途径,在可穿戴电子产品及其他领域都有潜在的应用.
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