Nanosized bismuth-doped tin dioxide/waterborne polyurethane nanocomposite materials

HE Qiuxing; HU Jianqing; TU Weiping

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Nanosized bismuth-doped tin dioxide/waterborne polyurethane nanocomposite materials

更新时间：2025-12-10

- Nanosized bismuth-doped tin dioxide/waterborne polyurethane nanocomposite materials
- CIESC Journal Issue 11, Pages: 2920-2925(2007)
- 作者机构：
  
  1. 华南理工大学化工与能源学院
  2. 广东药学院药科学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 November 2007，
  
  Published：05 November 2007
- 稿件说明：
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HE Qiuxing, HU Jianqing, TU Weiping. Nanosized bismuth-doped tin dioxide/waterborne polyurethane nanocomposite materials[J]. CIESC Journal, 2007, (11): 2920-2925.
DOI：

HE Qiuxing, HU Jianqing, TU Weiping. Nanosized bismuth-doped tin dioxide/waterborne polyurethane nanocomposite materials[J]. CIESC Journal, 2007, (11): 2920-2925. DOI：

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。

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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