Surfactants assisted processing of carbon nanotube-reinforced SiO2 matrix composites

被引：75

作者：

Ning, JW ^{[1
]}

Zhang, JJ ^{[1
]}

Pan, YB ^{[1
]}

Guo, JK ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2004年 / 30卷 / 01期

关键词：

hot-pressing; sol-gel processes; composites; SiO2; carbon nanotubes (CNTs);

D O I：

10.1016/S0272-8842(03)00063-4

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：

The dispersion homogeneity of carbon nanotubes (CNTs) is one of the most critical problems in carbon nanotube matrix composites. The dispersive role to CNTs of three kinds of surfactant including cetyltrimethyl ammonium bromide (C(16)TMAB cationic), polyacrylic acid (PAA anionic) and C16EO (CH3(CH2)(14)CH2(OC2H5)(10)OH nonionic) was investigated. The dispersion mechanism may include steric repulsive effect and static electric effect. CNT/SiO2 (5 vol.%) composites with and without C(16)TMAB were fabricated by sol-gel process. The average bending strength and fracture toughness of sample prepared with C(16)TMAB, compared with monolithic SiO2 glass, were enhanced 88 and 146% respectively. The properties of sample fabricated without C(16)TMAB were enhanced only 48 and 118%. (C) 2003 Elsevier Ltd and Techna S.r.l. All rights reserved.

引用

页码：63 / 67

页数：5

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