壁虎卓越的黏附爬行能力得益于其脚趾腹面密布的微纳米刚毛层级结构。垂直定向排列碳纳米管阵列(VACNT)仿生黏附材料，在实际应用中存在黏附强度不稳定、黏附可重复性差等问题，VACNT的微纳结构参数对其黏附性能调控机制仍不清楚。由于VACNT与界面接触能产生接触/摩擦电场，VACNT微纳结构参数的改变将会影响黏附过程中所产生的接触/摩擦电效应，进而影响黏附性能。本项目基于接触/摩擦电效应，建立VACNT微纳结构接触/摩擦电理论模型，实现微纳结构参数可控的VACNT制备，搭建适于研究VACNT接触/摩擦电效应和黏附性能的同步测试系统，测试不同微纳结构参数VACNT的接触/摩擦电量和黏附强度，揭示结构参数对黏附性能的调控机制。项目的完成将提出具有高黏附性能VACNT的结构参数设计准则，以指导仿生微纳结构黏附材料的设计与应用。

The extraordinary adhesion ability of gecko derives from its micro-nano scale setae with hierarchical structure. As an effective bio-inspired adhesive, vertical aligned carbon nanotube array (VACNT) still has some limitations during application, such as the unstable adhesion property and weak adhesive repeatability. And the effect mechanism of micro-nano structure of VACNT on its adhesion property is still unclear. The contact/tribo-electricity exists between VACNT and the contact surface. So the structural parameters of VACNT will affect the contact/tribo-electrification during adhesion and then further affect its adhesion property. Considering the contact/tribo-electricity effect, the project intends to develop a theoretical model to predict the relationship between structural parameters and contact/tribo-charges. Through optimizing the preparation technology, the structural parameters of VACNT will be precisely controlled. A suitable testing system will be built to investigate the contact/tribo-charges and adhesion property synchronously. Then test the contact/tribo-charges as well as the adhesion property of VACNT to explain the influence of contact/tribo-charges on the adhesion property. And finally reveal the effect mechanism of structural parameters on its adhesion property. The findings of this project aims to provide a design criterion of VACNT with improved adhesion property, and guidance to the design and application of bio-inspired micro-nano structural adhesive.