项目名称: 微约束阻尼结构单元及其结构阻尼一体化复合材料基体的设计、制备及机理研究
项目编号: No.51273118
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: 邹华维
作者单位: 四川大学
项目金额: 79万元
中文摘要: 结构阻尼一体化复合材料是先进复合材料发展的重要方向,它要求材料不仅具有高的模量和强度,而且要求材料同时具有良好的阻尼减振特性,现有结构阻尼一体化解决方案存在一些难以克服的缺陷。本研究内容创新地将宏观领域的经典约束阻尼结构引入材料的微观结构设计,采用层状硅酸盐纳米材料的可控聚合物插层技术,将具有高阻尼特性的粘弹性大分子插入高模量无机纳米片层间,形成并保持叠层结构体系,获得一种新型微纳米约束阻尼结构单元,结合高强度树脂基体制备一种新型的结构阻尼一体化复合材料基体,系统研究高阻尼大分子及功能单体在纳米蒙脱土片层间的插层和扩链反应,微结构的形成和控制,结构单元在基体树脂中的微观形貌及固化反应,研究阻尼大分子、插层结构、界面结合等对基体树脂宏观力学性能和阻尼减振特性的影响,旨在发现新的特性,揭示新的规律,为结构阻尼一体化复合材料的制备提供新思路、新方法和理论依据,具有重要的理论意义。
中文关键词: 结构阻尼一体化;聚合物插层;纳米材料;复合材料;环氧
英文摘要: Structure-damping integration material has been played an important role in advanced composite development, which demands not only high modulus and strength, but also excellent damping property. But now, there is no an effective solution to combine the structure and function in a composite. In this study, we try to introduce the macroscopical classical damping structure design into micro-structure of composite, which means insert high damping viscoelastic polymer into high modulus inorganic nano clay to form a micro-nano constrained damping structure unit, and then blends it with a high strength resin to prepare a new structure-damping integration composite matrix. In this research, we will investigate the intercalation and chain extending reaction, control and formation of micro-structure, micro morphology and curing reaction of structural unit in resin. The effect of damping macromolecule, intercalation structure, and interfacial compatibility on mechanical and damping properties of the composite will be investigated also. This work aims at discovering new law and character of structure-damping integration composite and providing an innovative idea, method and theory in preparing structure-damping integration composite materials.
英文关键词: structure-damping integration;polymer intercalation;nano materials;composites;epoxy