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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Wrinkling of silicon nanoribbons on shape memory polymers
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Wrinkling of silicon nanoribbons on shape memory polymers

机译：形状记忆聚合物上的硅纳米沥青皱纹

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摘要

Shape memory polymers (SMPs) have recently emerged as the substrate for surface wrinkling with potential applications in smart adhesion and tunable optical gratings. In this paper, wrinkling of single-crystal silicon nanoribbons on epoxy SMP substrate is investigated experimentally and theoretically. With the unique shape fixing capability of SMPs, the well-defined wavy profile of silicon nanoribbons is obtained. A simple theoretical mechanics model, which bypasses the complex thermomechanical properties of SMPs, based on the existing wrinkling mechanics is proposed to explain the underlying physics behind the wrinkled silicon nanoribbons. Theoretical predictions on wavy profile agree very well with experiments. It is found that the wavy profile is independent of the recovery temperature, which is the high temperature T-H above the transition temperature T-g. The material properties of SMPs at the transition temperature play a key role in determining the wavy profile. These results provide a scientific basis to design SMP-supported surface morphologies with important applications in smart surface engineering.
机译：形状记忆聚合物（SMPs）最近被出现为基板，用于表面皱纹，具有智能粘附和可调光栅的潜在应用。在本文中，实验和理论上研究了环氧SMP基板上的单晶硅纳米纤维的皱折。利用SMPS独特的形状固定能力，获得了硅纳米纤维的明确的波状轮廓。提出了一种简单的理论力学模型，基于现有的皱纹力学，绕过SMPS的复杂热机械性能，以解释皱型硅纳米棉花后面的底层物理。波浪形态的理论预测与实验相似。结果发现波浪轮廓与回收温度无关，其是转变温度T-G上方的高温T-H. SMPS在转变温度下的材料特性在确定波浪轮廓时发挥着关键作用。这些结果为设计SMP支持的表面形态提供了科学的基础，在智能表面工程中具有重要应用。

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  • 作者

    Zhang Shun; Wang Chengjun; Nie Shuang; Xiao Jianliang; Song Jizhou;

  • 作者单位

    Zhejiang Univ Dept Engn Mech Key Lab Soft Machines &

    Smart Devices Zhejiang Pr Soft Matter Res Ctr Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Dept Engn Mech Key Lab Soft Machines &

    Smart Devices Zhejiang Pr Soft Matter Res Ctr Hangzhou 310027 Zhejiang Peoples R China;

    Zhejiang Univ Dept Engn Mech Key Lab Soft Machines &

    Smart Devices Zhejiang Pr Soft Matter Res Ctr Hangzhou 310027 Zhejiang Peoples R China;

    Univ Colorado Dept Mech Engn Boulder CO 80309 USA;

    Zhejiang Univ Dept Engn Mech Key Lab Soft Machines &

    Smart Devices Zhejiang Pr Soft Matter Res Ctr Hangzhou 310027 Zhejiang Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用物理学;
  • 关键词

    surface wrinkling; shape memory polymer; film/substrate;

    机译：表面皱纹;形状记忆聚合物;薄膜/衬底;

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