间苯三酚-乙醛有机气凝胶的制备与表征  

Preparation and characterization of phlorogluctinol-acetaldehyde organic aerogels

作　　者：杨潇[1,2] 王朝阳[2] 付志兵[2] 张厚琼[2] 唐永建[2] 韦建军[1] 

机构地区：[1]四川大学原子与分子物理研究所,成都610065 [2]中国工程物理研究院激光聚变研究中心,四川绵阳621900

出　　处：《强激光与粒子束》2010年第12期2893-2896,共4页High Power Laser and Particle Beams

基　　金：中国工程物理研究院科学技术发展基金项目(2009A0302020)

摘　　要：以碳酸钠为催化剂,乙醇为溶剂,间苯三酚-乙醛为反应前躯体,经溶胶-凝胶、交联老化、二氧化碳超临界干燥制备出间苯三酚-乙醛(PA)有机气凝胶。扫描电镜观察和N2吸附测试结果表明:气凝胶具有较高的比表面积,是一种连续nm级3维网络结构的多孔材料,其比表面积为1 210 m2/g,平均孔径为11 nm,与传统有机气凝胶相比,提高了比表面积,一定程度上实现有机气凝胶的扩孔。Organic aerogels were synthesized by sol-gel polycondensation of phlorogluctinol(P) with acetaldehyde(A) in a slightly alcohol solution, Na2CO3 as the base catalyst, followed by crosslink, solvent exchanging, and drying with supercritical carbon dioxide. Organic aerogels were characterized by SEM and nitrogen adsorption. The aerogel has a continuous nano-network and porous structure. Compared with traditional organic aerogels, it has increased specific surface area(1210 m2/g)and average pore diameter (11 nm), which is expected to meet the requirement of ICF targets.

关 键 词：间苯三酚 乙醛 有机气凝胶 制备与表征 organic AEROGELS 比表面积 扫描电镜观察 超临界干燥 网络结构 平均孔径 二氧化碳 多孔材料 测试结果 碳酸钠 前躯体 催化剂 乙醇 吸附 溶胶 溶剂 

分 类 号：O4[理学—物理]