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Updated: Jul 4, 2025

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Published on: January 13, 2023

生物模拟多尺度定向PVA/NRL水凝启用多刺激响应和智能形状记忆执行器

Zhaohui Li¹, Zewei Li¹, Shihao Zhou¹

¹Key Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Shan Dong Sheng, Qing Dao Shi, 266042, China.

Small (Weinheim an der Bergstrasse, Germany)

|February 1, 2024

概括

此摘要是机器生成的。

这项研究引入了一种新的灵感来自肌肉的水凝,具有增强的机械强度和形状记忆性能. 这种新材料具有很高的驱动强度和响应能力,为先进的仿生设备铺平了道路.

关键词:

生物仿真肌肉生物仿真肌肉多尺度导向的多尺度导向天然乳乳是一种天然.聚乙烯酒精的使用情况形状内存水凝的水凝.

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Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

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Published on: April 16, 2018

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Published on: October 23, 2015

相关实验视频

Last Updated: Jul 4, 2025

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Four-Dimensional Printing of Stimuli-Responsive Hydrogel-Based Soft Robots

Published on: January 13, 2023

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Fabricating Degradable Thermoresponsive Hydrogels on Multiple Length Scales via Reactive Extrusion, Microfluidics, Self-assembly, and Electrospinning

Published on: April 16, 2018

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Fabrication of a Bioactive, PCL-based "Self-fitting" Shape Memory Polymer Scaffold

Published on: October 23, 2015

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
生物材料工程生物材料工程

背景情况:

形状记忆水凝对功能软材料来说是有前途的,但往往有不良的机械性能和低的驱动强度.
这限制了它们在智能仿生系统等复杂设备中的应用.

研究的目的:

开发一种具有改进的机械和形状记忆特性的新型形状记忆水凝.
创造一种以肌肉为灵感的材料,具有面向多尺度的结构,以提高性能.

主要方法:

使用聚乙醇 (PVA) 和天然乳 (NRL) 开发了一种策略,以创建面向聚乙醇-天然乳水凝 (OPNH).
形状记忆功能是通过自然 (NR) 的拉伸诱导结晶来实现的,PVA增强了与NRL颗粒的相互作用.
在拉伸干燥过程中形成了一个面向多尺度的结构.

主要成果:

该OPNH表现出卓越的界面兼容性和出色的机械性能 (3.2 MPa).
实现了高的形状固定性 (≈80%) 和形状恢复率 (≈92%).
水凝在低温 (28°C) 时表现出高的启动强度 (206kPa),显著的工作能力 (105kJ m−3),以及快速响应时间 (≈2s).

结论:

与传统水凝相比,开发的OPNH显示出优越的机械和形状记忆性能.
它的类似肌肉的工作能力,通过举起372倍的体重来证明,突出显示了它对智能生物仿真肌肉的潜力.
这种新型形状记忆材料为先进的多刺激响应设备提供了显著的可能性.