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Updated: Jan 15, 2026

Fabricating Reactive Surfaces with Brush-like and Crosslinked Films of Azlactone-Functionalized Block Co-Polymers

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Published on: June 30, 2018

使用双光子聚合物制造的自补,正弦形表面的粘附.

Madelyn P Jeske^1,2, Hannan Wang³, Hesam Askari³

¹Department of Chemical Engineering, University of Rochester, 4306 Wegmans Hall, Rochester, New York 14627, United States.

ACS applied polymer materials

|October 16, 2025

概括

研究人员开发了3D打印的自补表面,用于微尺度组件中可切换的粘附控制. 这种方法可以为灵活的电子和微流体学中的应用提供可调节的粘合.

关键词:

聚合物网络是一种聚合物网络.自己补充的表面.形状记忆的聚合物.可切换的粘附性可以切换.两个光子聚合的聚合.

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科学领域:

材料科学材料科学材料科学
机械工程机械工程
机器人技术机器人技术机器人技术

背景情况:

微尺度组装对于灵活的电子和微流体等先进技术至关重要.
对粘附的决定性控制是微尺度选择和放置操作中的一个关键挑战.
现有的方法往往缺乏用于可靠的微尺度零件操纵所需的精度.

研究的目的:

用3D打印的,自我补充的表面来证明可切换的粘附性.
为了研究温度和机械压缩对粘合强度的影响.
为了建立一种微尺度组件中可调节粘附的方法.

主要方法:

使用双光子聚合 (2PP) 来3D打印形状记忆树脂超表面,具有不同的2D正弦表面频率.
采用有限元法 (FEM) 来建模印刷元面的机械性能.
通过变化温度 (高于/低于玻璃过渡温度,Tg) 进行粘附测试,并对自我补充的表面施加压缩.

主要成果:

通过操纵3D打印表面的温度和压缩来证明可切换的附着性.
在Tg以上的加热 (约. 45°C) 到>60°C降低了粘合力,而压缩Tg以上,然后冷却增加了粘合力.
在印刷,自我补充的表面之间达到名义粘合强度超过3 MPa.

结论:

3D打印的,自我补充的超表面为微尺度组件中可切换的粘合控制提供了一种可行的方法.
展示的技术允许可调节的粘附,为精确的微型零件操纵打开了可能性.
进一步开发可以实现微尺度拆卸,用于组件回收和回收利用.