| 纤维掺杂疏水SiO2气凝胶的制备与表征 |
| |
| 引用本文： | 张志华,沈军,倪星元,李洋,王博,吴广明,周斌.纤维掺杂疏水SiO2气凝胶的制备与表征[J].稀有金属材料与工程,2008,37(Z2):16-19. |
| |
| 作者姓名： | 张志华 沈军 倪星元 李洋 王博 吴广明 周斌 |
| |
| 作者单位： | 同济大学,波耳固体物理研究所,上海,200092 |
| |
| 基金项目： | National Natural Science Foundation of China(No.20133040),Chinese National Foundation of High Technology (2002AA842052),Shanghai Committee of Science and Technology(055211010,0352nm056,0452nm088),Shanghai Key Subject Program,Shanghai Phosphor Program(05QMH1413) |
| |
| 摘 要： | 采用溶胶-凝胶方法成功制备了陶瓷纤维掺杂的疏水SiO2气凝胶.陶瓷纤维在SiO2气凝胶中起骨架支撑的作用来提高气凝胶的机械性能.SiO2气凝胶的机械强度从没有掺杂纤维的1.6×104Pa提高到掺杂10%纤维的9.6X 104Pa,且掺杂10%纤维的SiO2气凝胶常温常压的热导率仅为0.029 W/(m·K).掺杂SiO2气凝胶的疏水性通过表面修饰也得到了极大的提高.
|
| 关 键 词： | 纤维掺杂SiO2气凝胶 溶胶-凝胶 机械性能 热导率 |
| 文章编号： | 1002-185X(2008)S2-016-04 |
| 修稿时间： | 2007年11月12 |
Preparation and Characterization of Hydrophobic Silica Aerogels Doped with Fibers |
| |
| Zhang Zhihua,Shen Jun,Ni Xingyuan,Li Yang,Wang Bo,Wu Guangming,Zhou Bin.Preparation and Characterization of Hydrophobic Silica Aerogels Doped with Fibers[J].Rare Metal Materials and Engineering,2008,37(Z2):16-19. |
| |
| Authors: | Zhang Zhihua Shen Jun Ni Xingyuan Li Yang Wang Bo Wu Guangming Zhou Bin |
| |
| Abstract: | Hydrophobic silica aerogel doped with ceramic fibers were prepared successfully via sol-gel process.The ceramic fibers were distributed inside the silica aerogels to act as a supporting skeleton material,which improved the mechanical property.The mechanical strength of the silica aerogels increases from 1.6×104 Pa to 9.6 ×104 Pa with the doping of 10%doped aerogels are increased a lot by surface modification. |
| |
| Keywords: | silica aerogels doped with fibers sol-gel mechanical property thermal conductivity |
| 本文献已被 万方数据 等数据库收录！ |
|
