| 纳米铋掺杂二氧化锡/水性聚氨酯复合材料 |
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| 引用本文： | 何秋星,胡剑青,涂伟萍. 纳米铋掺杂二氧化锡/水性聚氨酯复合材料[J]. 化工学报, 2007, 58(11): 2920-2925 |
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| 作者姓名： | 何秋星 胡剑青 涂伟萍 |
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| 作者单位： | 华南理工大学化工与能源学院,广东,广州,510640;广东药学院药科学院,广东,广州,510006;华南理工大学化工与能源学院,广东,广州,510640 |
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| 基金项目： | 广东省绿色化学品技术重点实验室开放基金 |
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| 摘 要： | 以自制纳米铋掺杂二氧化锡(nano-BTO)分散浆料和水性聚氨酯(PU)为原料，采用共混法制备nano-BTO/水性聚氨酯杂合材料。运用zeta电位仪、激光粒度仪和TEM等研究了nano-BTO的zeta电位分布及其分散。结果表明，nano-BTO浆料的等电点在pH=6附近；采用硅烷偶联剂KH-550和高分子分散剂DP-518对nano-BTO粉体进行分散处理可获得良好分散性的水性浆料。采用紫外-可见-近红外分光光度计和自制的隔热测试装置等研究了nano-BTO/氨酯杂合材料的力学性能、光学性能和热学性能。结果表明，当nano-BTO含量为1.0%时，涂膜的拉伸强度和断裂伸长率分别达到了9.23 MPa、223%，可见光透射率约为70%，其隔热效果同比纯PU膜可降温达8℃以上。
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| 关 键 词： | 纳米铋掺杂二氧化锡 水性聚氨酯 共混法 zeta电位 |
| 文章编号： | 0438-1157（2007）11-2920-06 |
| 收稿时间： | 2006-09-30 |
| 修稿时间： | 2006-09-30 |
Nanosized bismuth-doped tin dioxide/waterborne polyurethane nanocomposite materials |
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| HE Qiuxing,HU Jianqing,TU Weiping. Nanosized bismuth-doped tin dioxide/waterborne polyurethane nanocomposite materials[J]. Journal of Chemical Industry and Engineering(China), 2007, 58(11): 2920-2925 |
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| Authors: | HE Qiuxing HU Jianqing TU Weiping |
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| Affiliation: | School of Chemical and Energy Engineering, South China University of Technology , Guangzhou 510640, Guangdong, China ; School of Pharmacy , Guangdong Pharmaceutical University, Guangzhou 510006, Guangdong , China |
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| Abstract: | Nanosized bismuth-doped tin dioxide/waterborne polyurethane nanocomposite materials were prepared by the blending method with self-made nanosized bismuth-doped tin dioxide slurry and waterborne polyurethane as raw materials.Experimental results indicated that the isoelectric point of nanosized bismuth-doped tin dioxide slurry was about pH 6 and the nanosized bismuth-doped tin dioxide was dispersed well with the composite dispersers of siloxane coupling agent of KH-550 and DP-518.The tensile strength and breaking extensibility of nanocomposite film containing 1.0% of the nanosized bismuth-doped tin dioxide were 9.23 MPa and 223%, respectively, and the transmittance of visible light was about 70%.The heat-insulation was over 8℃ in contrast to the pure waterborne polyurethane film. |
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| Keywords: | nanosized bismuth-doped tin dioxide powders waterborne polyurethane blending method zeta potential |
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