The preparation and structural characterization of ambient-dried porous methylsilicone matrix doped with SiO2 powder

被引：2
|
作者：
Xu, Huifang [1 ]
Zhang, Chunhua [1 ]
Zhang, Haijiao [2 ]
Song, Jianwei [1 ]
Huang, Yudong [1 ]
Lv, Tong [1 ]
机构：
[1] Harbin Inst Technol, Sch Chem Engn & Technol, Harbin 150001, Peoples R China
[2] Heilongjiang Inst Sci & Technol, Modern Mfg Engn Ctr, Harbin 150027, Peoples R China
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2011年 / 357卷 / 15期
关键词：
Methylsilicone; Porous; SiO2; SOL-GEL PROCESS; PRESSURE; POLYMERS; AEROGEL;
D O I：
10.1016/j.jnoncrysol.2011.03.007
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Porous methylsilicone monoliths doped with SiO2 powder were prepared by dispersion of SiO2 nanoparticles in methylsilicone oligomer solution followed by ammonia-catalyzed gelation and ambient drying. The microstructure of the porous composite monoliths was investigated by FTIR, SEM, and N-2 adsorption. The results indicated that SiO2 evenly dispersed in methylsilicone matrix. The thermal stability of SiO2-doped methylsilicone monoliths had been enhanced. The structure stability and hydrophobic property of the composite monoliths were maintained until 400 degrees C. (C) 2011 Elsevier B.V. All rights reserved.
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页码：2822 / 2825
页数：4
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