Preparation, characterization, and prominent thermal stability of phase-change microcapsules with phenolic resin shell and n-hexadecane core
文献类型：期刊论文
| 作者 | Jiang, Yanbin; Wang, Dujin; Zhao, Tong |
| 刊名 | Journal of applied polymer science
 |
| 出版日期 | 2007-06-05 |
| 卷号 | 104期号:5页码:2799-2806 |
| 关键词 | Phase-change microcapsule Phase separation Phenolic resin Thermal stability |
| ISSN号 | 0021-8995 |
| DOI | 10.1002/app.25962 |
| 通讯作者 | Zhao, tong(tzhao@iccas.ac.cn) |
| 英文摘要 | Microcapsules with phenolic resin (pfr) shell and n-hexadecane (hd) core were prepared by controlled precipitation of the polymer from droplets of oil-in-water emulsion, followed by a heat-curing process. the droplets of the oil phase are composed of a polymer (pfr), a good solvent (ethyl acetate), and a poor solvent (hd) for the polymer. removal of the good solvent from the droplets leads to the formation of microcapsules with the poor solvent encapsulated by the polymer. the microstructure, morphology, and phase-change property as well as thermal stability of the microcapsules were systematically characterized by scanning electron microscope (sem), fourier transform infrared spectroscopy (ftir), differential scanning calorimety (dsc), and thermogravimetric analysis (tga). the phase-change microcapsules exhibit smooth and perfect structure, and the shell thickness is a constant fraction of the capsule radius. the initial weight loss temperature of the microcapsules was determined to be 330 degrees c in n(2) and 255 degrees c in air, respectively, while that of the bulk hd is only about 120 degrees c both in air and n2 atmospheres. the weight loss mechanism of the microcapsules in different atmosphere is not the same, changing from the pyrolysis temperature of the core material in n2 to the evaporation of core material caused by the fracture of shell material in air. the melting point of hd in microcapsules is slightly lower than that of bulk hd, and a supercooling was observed upon crystallization. (c) 2007 wiley periodicals, inc. |
| WOS关键词 | ENERGY-STORAGE ; EMULSION DROPLETS ; MICROSPHERES ; SEPARATION ; MICROENCAPSULATION ; POLYMERIZATION ; RELEASE ; OIL ; NANOCAPSULES ; OCTADECANE |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000245724100007 |
| 出版者 | WILEY-BLACKWELL |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380919 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Zhao, Tong |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Lab Adv Polymer Mat, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, Beijing Natl Lab Mol Sci,Key Lab Engn Plast, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang, Yanbin,Wang, Dujin,Zhao, Tong. Preparation, characterization, and prominent thermal stability of phase-change microcapsules with phenolic resin shell and n-hexadecane core[J]. Journal of applied polymer science,2007,104(5):2799-2806. |
| APA | Jiang, Yanbin,Wang, Dujin,&Zhao, Tong.(2007).Preparation, characterization, and prominent thermal stability of phase-change microcapsules with phenolic resin shell and n-hexadecane core.Journal of applied polymer science,104(5),2799-2806. |
| MLA | Jiang, Yanbin,et al."Preparation, characterization, and prominent thermal stability of phase-change microcapsules with phenolic resin shell and n-hexadecane core".Journal of applied polymer science 104.5(2007):2799-2806. |
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来源：中国科学院大学
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