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Study of the microstructure of TEOS-MTES based sol by SAXS
其他题名PVP改性氧化硅溶胶的微结构和流变性
Xu, H; Xu, Y; Li ZH(李志宏); Li, ZH
2005
发表期刊ACTA PHYSICO-CHIMICA SINICA
卷号21期号:3页码:#REF!
通讯作者Xu, Y (reprint author), Taiyuan Inst Plast, Taiyuan 030024, Peoples R China.
文章类型Article
摘要Polymer-modified silica sols were synthesized by the ammonia-catalyzed hydrolysis of tetraethoxysilane with polyvinylpyrrolidone (PVP) as polymer modifier in methyl alcohol. By small angle X-ray scattering (SAXS), the microstructure was studied with the assistance of dynamic light scattering (DLS). The dependence of the particle size distribution, fractal characteristics, and the rheology of PVP-modified silica sols on the PVP content, ammonia content and water content in sols was analyzed. It is easy to form hydrogen bonds between the surface hydroxyls of silica particles and the negatively charged oxygen atoms of inner amide in PVP molecules, and this holds back the further growth of silica particles. Thus the gelation was retarded and the rheology of the sol was largely modified by PVP.
关键词sol silica small angle X-ray scattering rheology
学科领域Chemistry
DOI10.3866/PKU.WHXB20050315
收录类别SCI
WOS类目Chemistry, Physical
WOS记录号WOS:000227894800015
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227507
专题多学科研究中心
推荐引用方式
GB/T 7714
Xu, H,Xu, Y,Li ZH,et al. Study of the microstructure of TEOS-MTES based sol by SAXS[J]. ACTA PHYSICO-CHIMICA SINICA,2005,21(3):#REF!.
APA Xu, H,Xu, Y,李志宏,&Li, ZH.(2005).Study of the microstructure of TEOS-MTES based sol by SAXS.ACTA PHYSICO-CHIMICA SINICA,21(3),#REF!.
MLA Xu, H,et al."Study of the microstructure of TEOS-MTES based sol by SAXS".ACTA PHYSICO-CHIMICA SINICA 21.3(2005):#REF!.
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