表面修饰超憎水材料露霜凝结机理及测湿技术研究

项目名称： 表面修饰超憎水材料露霜凝结机理及测湿技术研究

项目编号： No.41475022

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 天文学、地球科学

项目作者： 赵世军

作者单位： 中国人民解放军国防科技大学

项目金额： 89万元

中文摘要： 露点仪是目前测湿最有效的方法，但现有露点仪凝结面通常由金属制成，存在有划痕、镜面污染等问题，对露霜的凝结时机造成影响，维护难度大。本项目从露霜凝结机理入手，结合对表面科学和高分子化工研究进展，创新提出将具有自清洁性能的表面修饰超憎水材料作为凝结面应用于露点测湿技术中，为露点测湿法在自然条件下的业务化应用提供了新思路。本项目针对该材料应用于露点测湿技术的基础理论和技术方法两个关键科学问题，提出了三个研究内容：表面修饰超憎水材料露霜凝结动力过程、表面修饰超憎水材料露霜凝结图像特征、搭建露霜凝结观测试验系统并试验。通过突破该材料面的露霜凝结机理、露霜凝结的影响因子与影响程度、以及露霜凝结时机和相态的识别等关键技术，实现基于表面修饰超憎水材料的露点测湿方法，从而有效提高露点仪的测量准确性和环境适应性。

中文关键词： 露点仪；表面修饰；超憎水材料；图像识别；露霜凝结机理

英文摘要： Dew-point hygrometer is one effective method for humidity measurement at present, however, the metal mirror of condensation dew-point hygrometer are easily scratched and contaminated, which causes that it's difficult to identify the timing of the generated dew-frost, and it's maintenance is difficult. Starting from the mechanism of dew-frost's condensation, combing the development of surface science and polymer chemical industry, this project proposes a new dew-point measurement method by using the super-hydrophobic materials with surface modification, which provides an innovative idea for operational application of the dew-point hygrometer. Aimed at the basic theory and techniques of dew-point measurement, the main contents include: dynamic process of dew-frost's condensing mechanism on the super-hydrophobic materials with surface modification, image characteristics of dew-frost on condensing surface, development of dew-frost's condensing observation system and testing. By analyzing the mechanism of dew-frost's condensation on the surface of super-hydrophobic materials, impact factor of dew-frost's condensation, detection and identification of dew- frost,it will realize the new method of dew-point hygrometer by the super-hydrophobic materials with surface modification, which will promote the measurement accuracy and environmental adaptability of dew-point hygrometer.

英文关键词： Dew-point hygrometer;Surface modification;Super-hydrophobic materials;Image recognition;Dew and frost's condensing mechanism