介孔材料-氧化石墨烯复合纳米粒子协同增强改性不饱和聚酯复合材料的研究

项目名称： 介孔材料-氧化石墨烯复合纳米粒子协同增强改性不饱和聚酯复合材料的研究

项目编号： No.51263005

项目类型： 地区科学基金项目

立项/批准年度： 2013

项目学科： 一般工业技术

项目作者： 吕建

作者单位： 桂林理工大学

项目金额： 49万元

中文摘要： 采用无机纳米材料增强聚合物基复合材料是目前国内外的研究热点。纳米粒子与聚合物基体之间的界面作用始终是该领域有待解决的关键科学问题。本课题提出利用介孔材料(MC)和氧化石墨烯(GO)与有机硅化合物进行接枝化学反应，制备复合纳米粒子(MC-g-GO)，将其与UP单体进行原位聚合，合成UP复合树脂（MC-g-GO/UP）。再经熔融辊炼、挤出造粒，制备MC-g-GO/UP复合材料。重点研究：不同结构形态介孔硅、反应工艺对接枝产物结构和性能的影响；分散方法、原位聚合反应条件对UP复合树脂结构和性能的影响；共混加工方法、成型条件、固化工艺等对UP复合材料性能的影响。重点解决：MC-g-GO的接枝及与UP的原位聚合、结构控制，UP复合材料制备与成型工艺技术。形成互穿的有机-无机杂化网络结构，实现MC-g-GO与UP之间良好的界面作用。阐明复合纳米结构协同增强机理，为电工用不饱和聚酯高性能化奠定基础。

中文关键词： 介孔材料；氧化石墨烯；不饱和聚酯；复合材料；协同增强

英文摘要： Using various inorganic nanomaterials to reinforce polymer matrix composites is becoming a research hot spot all over the world. The key scientific problem needed to be solved in this field is the interfacial interaction between the inorganic particles and the polymer matrix. In this proposal, grafting reactions of the surface hydroxyl groups of mesoporous nanomaterials(MC) and graphene oxide (GO) are carried out with organic silicon compounds, to synthesis composite nanoparticles (named as MC-g-GO), which are employed to parepare MC-g-GO/UP composites by in situ polymerization, in order to enhance the adhesion between inorganic particles and polymer matrix. The MC-g-GO/UP nanocomposite materials are fabricated by blending, extruding and palletizing in sequence. Investigations will focus on:(1)the effects of the morphology of mesoporous silica and grafting reaction process on the structure and properties of grafting products;(2)the influences of the surface dispersion and in situ polymerization conditions on the the structure and properties of MC-g-GO/UP composite resin;(3)the influences of the blending methods, processing conditions and curing process on the performances of MC-g-GO/UP nanocomposite materials.More efforts will be paid to solve the problem occurred in the grafting reaction between mesoporous sili

英文关键词： mesoporous；graphene oxide；unsaturated polyester；composite；synergistic reinforcement