疏水/疏油杂化吸波涂层的设计、合成及其机理研究

Microwave absorbing material plays an important role in the field of military stealth as well as in civil application to shield and protect against electromagnetic radiation. However, traditional microwave absorbing material has some defect, such as poor flexibility, low adhesion, poor hydrophobicity/ lipophobicity and narrow absorption band , which limit its use. Based on our previous research, composite absorbent is added into lyophobic/oleophobic coating using organic-inorganic hybrid method, and a kind of lyophobic/oleophobic hybrid microwave absorbing coating will be prepared by molecular design. This microwave absorbing coating has characters of thin, broad band, light and strong absorption，it is suitable for military and civil applications for its excellent broad band stealth，hydrophobicity/ lipophobicity，temperature and weather resistance. Effects of content, dispersivity，electromagnetic parameters of composite absorbent，thickness，molecular structure，distribution of element，electromagnetic parameters of lyophobic/oleophobic hybrid microwave absorbing coating on the absorbing property of lyophobic/oleophobic hybrid microwave absorbing coating will be studied, and microwave absorbing mechanism will be obtained.At the same time,lyophobic/oleophobic mechanism and hybrid mechanism are also studied. Which is of great theoretical and practical significance to guide the development and application of the functional microwave absorbing coating.

吸波材料在军事隐身领域及民用电磁辐射的屏蔽和防护方面起着重要作用，然而，传统吸波材料还存在着柔韧性差、附着力低、疏水/疏油性差、吸收频带窄等缺点，限制了其应用。在前期研究的基础上，通过对涂层进行分子设计，采用有机/无机杂化的方法，将复合吸收剂引入疏水/疏油涂层中，制备出一种吸波性能优异的疏水/疏油杂化吸波涂层。该吸波涂层不仅有“薄、宽、轻、强”等特点，还具有宽频隐身、疏水/疏油、耐高温、耐候性等特点，可满足军事及民用领域的需要。研究复合吸收剂的用量、分散性、本征电磁参数以及疏水/疏油杂化吸波涂层厚度、分子结构、元素分布、电磁参数和不同频率与疏水/疏油杂化吸波涂层吸波特性之间的关系，揭示疏水/疏油杂化吸波涂层吸波机理。同时还研究该疏水/疏油杂化吸波涂层疏水/疏油机理和杂化机理。该研究对功能吸波涂层的开发及应用具有重要的理论指导意义和现实意义。

吸波材料在军事隐身领域及民用电磁辐射的屏蔽和防护方面起着重要作用，然而，传统吸波材料还存在着柔韧性差、附着力低、疏水/疏油性差、吸收频带窄等缺点，限制了其应用。. 制备了几种吸波性能好的复合吸收剂、疏水/疏油树脂以及耐酸耐碱防污基疏水/疏油树脂涂层。通过对涂层进行分子设计，采用有机/无机杂化的方法，将复合吸收剂引入疏水/疏油涂层中，制备出一种吸波性能优异的疏水/疏油杂化吸波涂层。该吸波涂层不仅有“薄、宽、轻、强”等特点，最小反射损耗可以达到-70.7dB，高效吸收带宽(≤0.10dB)可以达到8.5GHz。由于该杂化吸波涂层具有优异的吸波性能，还具有宽频隐身、疏水/疏油、耐高温、耐候性等特点，因此可满足军事及民用领域的需要。另外还制备了超疏水材料。. 研究了复合吸收剂的用量、分散性、本征电磁参数以及疏水/疏油杂化吸波涂层分子结构、元素分布、电磁参数和不同频率与疏水/疏油杂化吸波涂层吸波特性之间的关系，揭示疏水/疏油杂化吸波涂层吸波机理。同时还研究该疏水/疏油杂化吸波涂层疏水/疏油机理和杂化机理。另外还研究了超疏水复合材料的超疏水性能、自清洁性能以及油/水分离性能。该研究对功能性吸波涂层的开发及应用具有重要的理论指导意义和现实意义。