Study on modification and dispersion of nano-silica

被引：20

作者：

Chen, H ^{[1
]}

Zhou, SX ^{[1
]}

Gu, GX ^{[1
]}

Wu, LM ^{[1
]}

机构：

[1] Fudan Univ, Dept Mat Sci, Adv Coatings Res Ctr, China Educ Minist, Shanghai 200433, Peoples R China

来源：

JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY | 2005年 / 26卷 / 01期

关键词：

modification; dispersion; nano-silica;

D O I：

10.1081/DIS-200040232

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The modification and dispersion of nano-silica particles were investigated by Fourier transform infrared spectroscopy (FTIR), Si-29 CP MAS NMR, thermogravimetric analysis (TGA), Raman spectroscopy, N4Plus particle size analyzer, transmission electron microscopy (TEM), and dynamic mechanical analyzer (DMA) using methacryloxypropyltrimethoxysilane (MAPTS) as the modification agent. It was found that MAPTS had grafted onto silica particles and existed in T-2 structure. TGA data showed that the nano-silica particles with higher specific surface area and hydroxyl content could be grafted with more MAPTS than those with low specific surface area and hydroxyl content. Increasing temperature has more impact than extending time for increasing modification effect. MAPTS modification was beneficial for decreasing particle size of nano-silica, improving its dispersion in resin.

引用

页码：27 / 37

页数：11

共 16 条

[1]

Bourgeat-Lami, 1998, J Colloid Interface Sci, V197, P293

[2] Wettability of fine silica powder surfaces modified with several normal alcohols [J].

Fuji, M ;

Takei, T ;

Watanabe, T ;

Chikazawa, M .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1999, 154 (1-2) :13-24

[3]

Hsiue GH, 2000, J APPL POLYM SCI, V76, P1609, DOI 10.1002/(SICI)1097-4628(20000613)76:11<1609::AID-APP1>3.0.CO

[4]

2-W

[5] Microstructural and morphological characteristics of PS-SiO2 nanocomposites [J].

Hsiue, GH ;

Kuo, WJ ;

Huang, YP ;

Jeng, RJ .

POLYMER, 2000, 41 (08) :2813-2825

[6] Structure and dynamics of a colloidal silica poly(methyl methacrylate) composite by C-13 and Si-29 MAS NMR spectroscopy [J].

Joseph, R ;

Zhang, SM ;

Ford, WT .

MACROMOLECULES, 1996, 29 (04) :1305-1312

[7] Surface modification of inorganic oxide particles with silane coupling agent and organic dyes [J].

Lin, J ;

Siddiqui, JA ;

Ottenbrite, RM .

POLYMERS FOR ADVANCED TECHNOLOGIES, 2001, 12 (05) :285-292

[8] Preparation and thermal properties of epoxy-silica nanocomposites from nanoscale colloidal silica [J].

Liu, YL ;

Hsu, CY ;

Wei, WL ;

Jeng, RJ .

POLYMER, 2003, 44 (18) :5159-5167

[9] Toward functionalized surfaces through surface esterification of silica [J].

Ossenkamp, GC ;

Kemmitt, T ;

Johnston, JH .

LANGMUIR, 2002, 18 (15) :5749-5754

[10] Imaging of polymer monolayers attached to silica surfaces by element specific transmission electron microscopy [J].

Ribbe, A ;

Prucker, O ;

Ruhe, J .

POLYMER, 1996, 37 (07) :1087-1093

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