| 纳米SiO2对聚氨酯清漆性能的影响 |
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| 引用本文： | 姚素薇,王小燕,张卫国,王宏智.纳米SiO2对聚氨酯清漆性能的影响[J].功能材料,2006,37(2):292-294. |
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| 作者姓名： | 姚素薇 王小燕 张卫国 王宏智 |
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| 作者单位： | 天津大学,化工学院应用化学系杉山表面技术研究室,天津,300072 |
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| 摘 要： | 通过表面改性技术获得疏水性的纳米二氧化硅粒子,粒径约50nm.在机械搅拌和超声场的共同作用下,将纳米二氧化硅分散到聚氨酯清漆中,制得纳米二氧化硅复合涂料.失重法腐蚀实验、阳极极化曲线和交流阻抗测试结果表明,加入纳米二氧化硅后,聚氨酯清漆的耐蚀性能提高.同时改性后的聚氨酯清漆漆膜的附着力增加,抗老化性能提高.
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| 关 键 词： | 纳米二氧化硅 聚氨酯清漆 耐蚀性 附着力 抗老化 |
| 文章编号： | 1001-9731(2006)02-0292-03 |
| 收稿时间： | 2005-06-06 |
| 修稿时间： | 2005-08-23 |
Influence of nano-SiO2 on polyurethane varnish |
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| YAO Su-wei,WANG Xiao-yan,ZHANG Wei-guo,WANG Hong-zhi.Influence of nano-SiO2 on polyurethane varnish[J].Journal of Functional Materials,2006,37(2):292-294. |
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| Authors: | YAO Su-wei WANG Xiao-yan ZHANG Wei-guo WANG Hong-zhi |
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| Affiliation: | SUGIYAMA Laboratory of Surface Technology, School of Chemical Engineering,Tianjin University,Tianjin 300072,China |
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| Abstract: | Hydrophobic nano-SiO_2 particles were prepared by surface modification,and the diameter of nano-SiO_2 was about 50nm.By using stiring and ultrasonic dispersing,nano-SiO_2 composite coating was obtained by adding nano-SiO_2 into polyurethane varnish.Immersion experiment,linear sweep voltammetry and electrochemical impedance were applied,the results showed that the anti-corrosion of nano-composite coating was improved by adding modified nano-SiO_2.It was obtained that the adhesion of coating was improved by adding modified nano-SiO_2 too.In addition,the films of coating were characterized by ultraviolet spectrophotometer(UV),the film of composite coating shows strong ability of UV adsorption,the ultraviolet resistance of polyurethane varnish was improved. |
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| Keywords: | nano-SiO2 polyurethane varnish anti-corrosion adhesion ultraviolet resistance |
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