植物纤维复合材料电磁屏蔽功能形成机理和调控研究

项目名称： 植物纤维复合材料电磁屏蔽功能形成机理和调控研究

项目编号： No.51273068

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 何和智

作者单位： 华南理工大学

项目金额： 80万元

中文摘要： 高性能低成本填充型电磁屏蔽复合材料是近年来的研究热点。申请人用碳系粒子对植物纤维蒸汽爆破原位包覆改性制备聚合物复合材料，发现其有较好的导电特性，并且具有低成本的显著特点。针对植物纤维蒸汽爆破原位改性过程，深入研究爆破力场中分离的植物纤维表面碳系粒子包覆层形成机制，探索碳系粒子改性植物纤维填充聚合物复合材料逾渗阈值影响因素，揭示植物纤维复合材料电磁屏蔽功能形成的本质和规律，为高性能低成本填充型电磁屏蔽复合材料的制备和性能调控提供依据，具有重要的科学意义和现实意义。

中文关键词： 碳系粒子；剑麻纤维；蒸汽爆破；电磁屏蔽；复合材料

英文摘要： In the recent years, high performance and low cost filled type composites for electromagnetic interference shielding is a research hotspot. the author prepares polymer composites by plant fiber steam explosion in-situ coating modification with carbon particles and find its advantages of high conductivity and low cost. From the process of plant fiber steam explosion in-situ modification, we can make a deep research on the formation mechanism of carbon particles coating layer around the surface of separate plant fiber in the explosion force field, investigate the factors which influence the percolation threshold of the plant fiber filled polymer composites modified by carbon particles and reveal the essence and law of the formation of electromagnetic interference shielding performance in plant fiber composites. It will provide evidence for preparation and performance regulation of high performance and low cost filled type composites for electromagnetic interference shielding, and it has very important scientific significance and practical value.

英文关键词： carbon particles；sisal fibers；steam-explosion；electromagnetic shielding；composites