[1]王 伟,冯晓健,胡华国.阴离子型水性超分散剂对纳米TiO2的表面改性[J].南京师范大学学报(工程技术版),2008,08(02):051-55.
　Wang Wei,Feng Xiaojian,et al.Surface Modification of Nanosized TiO2 by Aqueous Anionic Hyperdispersant[J].Journal of Nanjing Normal University(Engineering and Technology),2008,08(02):051-55.
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阴离子型水性超分散剂对纳米TiO2的表面改性
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
08卷
期数:
2008年02期
页码:
051-55
栏目:
出版日期:
2008-06-30

文章信息/Info

Title:
Surface Modification of Nanosized TiO2 by Aqueous Anionic Hyperdispersant
作者:
王 伟1;  2;  冯晓健1;  2;  胡华国1
1. 南京师范大学化学与环境科学学院, 江苏南京210097; 2. 南京大学固体微结构物理国家重点实验室, 江苏南京210093
Author(s):
Wang Wei1; 2; Feng Xiaojian1; 2; Hu Huaguo1
1.School of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210097,China;2.National Key Laboratory of Solid State Microstructure,Nanjing University,Nanjing 210093,China
关键词:
阴离子型;  超分散剂;  纳米T iO 2;  分散性
Keywords:
anion ic;  hyperd ispersant;  nanosized T iO2;  dispersib ility
分类号:
TB383.1
摘要:
为制备稳定分散的纳米TiO2水悬浮液,采用自制的阴离子型水性超分散剂对纳米TiO2进行表面改性,使用红外、紫外、扫描电镜、沉降实验、黏度测试等方法对钛白粉的分散性进行表征.结果表明,阴离子型水性超分散剂能成功地包覆于粉体表面;经超分散剂改性后粒子基本无团聚现象,平均粒径在100 nm以内;在pH=9时,能使TiO2较好地分散于水溶液中,完全沉降时间达到了1 152 h以上,分散性能较改性前大大提高.
Abstract:
Nano sized T iO2 w as mod ified by w ater-based an ion ic hype rd ispersant in orde r to obta in steady nanosized T iO2 aqueous suspension. IR, UV, SEM, sedim entation experim ent, v isco sim etryw ere used to character ize the dispe rsibility o f T iO2. The resu lts show ed that the hyperd ispersantw as adso rbed onto theT iO2 surface successfully; the SEM show ed that there w as no agm ina ted mod ified T iO2 particles and the whole average size w as less than 100 nm; the nano sized T iO2 aqueous suspension was very stable at pH va lue 9, them od ified nanosized TiO2 can be steadily suspended for 1 152 h in w ater so lvent, com pa red w ith the pre-m odified T iO2 the dispers ibility w as increased g reatly.

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备注/Memo

备注/Memo:
基金项目: 南京大学固体微结构物理国家重点实验室基金(M05010)资助项目.
通讯联系人: 王 伟, 硕士研究生, 研究方向: 高分子材料. E-m ail: ziyouw angw ei1020@ 126. com
更新日期/Last Update: 2013-04-24