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机械坚固,自我愈合的聚氨弹性体,通过分层键和二硫化键实现

Biqiang Jin^1,2, Wenqiang Wu³, Haitao Wu²

¹College of Science, Xichang University, Xichang 615000, China.

|October 14, 2023

概括

研究人员使用动态硬域开发出强大的,自我修复的聚合物. 这种创新策略提高了机械性能和愈合效率,为灵活的电子和机器人技术的先进应用铺平了道路.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学

背景情况:

机械坚固和自我修复的聚合物材料的制造具有挑战性.
现有的材料往往面临着凝聚力的能量和放松动态之间的权衡.

研究的目的:

开发一种新的策略,用于制造机械坚固和自我修复的聚合物材料.
通过增强应力消散和网络重组,克服当前聚合物网络的局限性.

主要方法:

使用动态硬域制造聚氨 (PU) 弹性体.
在硬域内纳入层次的键和二硫化键.
机械性能和自我愈合效率的表征.

主要成果:

设计的PU弹性体具有出色的机械性能,包括9.9MPa的抗拉强度和44.87MJ/m3的性.
通过动态债券的协同效应,实现了96.2%的高自我修复效率.
证明了有效的压力能量消耗和加速网络重组.

结论:

拟议的战略有效地平衡了PU网络中的凝聚性能量和放松动态.
这种方法为制造高性能自愈聚合物提供了一种通用方法.
开发的材料显示出在柔性机器人和可穿戴电子产品中的应用潜力.

关键词:

二硫化物债券是指二硫化物债券.层次的键是层次的键.机械强度机械强度聚氨弹性体聚氨弹性体它具有自我愈合的功能.

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