A study on water absorption in freestanding polyurethane films filled with nano-TiO2 pigments by capacitance measurements
文献类型：期刊论文
| 作者 | Sun, Mingcheng; Liu, Fuchun; Shi, Hongwei; Han, Enhou |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 22期号:1页码:27-34 |
| 关键词 | Water absorption Nano-TiO2 Polyurethane EIS |
| ISSN号 | 1006-7191 |
| DOI | 10.1016/S1006-7191(08)60067-8 |
| 通讯作者 | Han, Enhou(ehhan@imr.ac.cn) |
| 英文摘要 | The electrochemical impedance spectroscopy (EIS) was used to evaluate the water transport and dielectric properties of polyurethane films filled with nano-TiO2 at different pigment/base (P/B) values in 0.5 mol/L NaCl solutions. EIS results were compared with gravimetric measurements on the freestanding films. The amount of water absorption showed great discrepancy between the two methods. The diffusion coefficient in the polyurethane film with P/B=30% was the smallest among those filled with nano-TiO2 pigments. The dielectric constant e of the polyurethane varnish film obtained from the initial capacitance was in the range of typical values of polymers. SEM was used to measure the distribution of nano-TiO2 particles in the polyurethane films. |
| 资助项目 | National Natural Science Foundation of China[50499334] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000207938600005 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/98284]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Han, Enhou |
| 作者单位 | Chinese Acad Sci, State Key Lab Corros & Protect, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Mingcheng,Liu, Fuchun,Shi, Hongwei,et al. A study on water absorption in freestanding polyurethane films filled with nano-TiO2 pigments by capacitance measurements[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2009,22(1):27-34. |
| APA | Sun, Mingcheng,Liu, Fuchun,Shi, Hongwei,&Han, Enhou.(2009).A study on water absorption in freestanding polyurethane films filled with nano-TiO2 pigments by capacitance measurements.ACTA METALLURGICA SINICA-ENGLISH LETTERS,22(1),27-34. |
| MLA | Sun, Mingcheng,et al."A study on water absorption in freestanding polyurethane films filled with nano-TiO2 pigments by capacitance measurements".ACTA METALLURGICA SINICA-ENGLISH LETTERS 22.1(2009):27-34. |
入库方式： OAI收割
来源：金属研究所
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