Improvement of thermal stability of polypropylene using DOPO-immobilized silica nanoparticles
文献类型：期刊论文
| 作者 | Dong, Quanxiao1; Ding, Yanfen1; Wen, Bin1; Wang, Feng1; Dong, Huicong1; Zhang, Shimin1; Wang, Tongxin2; Yang, Mingshu1 |
| 刊名 | COLLOID AND POLYMER SCIENCE
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 290期号:14页码:1371-1380 |
| 关键词 | Polypropylene Dopo Silica Nanocomposites Kinetic |
| ISSN号 | 0303-402X |
| DOI | 10.1007/s00396-012-2631-0 |
| 英文摘要 | After the surface silylation with 3-methacryloxypropyltrimethoxysilane, silica nanoparticles were further modified by 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO). The immobilization of DOPO on silica nanoparticles was confirmed by Fourier transform infrared spectroscopy, UV-visible spectroscopy, magic angle spinning nuclear magnetic resonance, and thermogravimetric analysis. By incorporating the DOPO-immobilized silica nanoparticles (5 wt%) into polypropylene matrix, the thermal oxidative stability exhibited an improvement of 62 A degrees C for the half weight loss temperature, while that was only 26 A degrees C increment with incorporation of virgin silica nanoparticles (5 wt%). Apparent activation energies of the polymer nanocomposites were estimated via Flynn-Wall-Ozawa method. It was found that the incorporation of DOPO-immobilized silica nanoparticles improved activation energies of the degradation reaction. Based on the results, it was speculated that DOPO-immobilized silica nanoparticles could inhibit the degradation of polypropylene and catalyze the formation of carbonaceous char on the surface. Thus, thermal stability was significantly improved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000307542800004 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/47755]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, Mingshu |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Howard Univ, Coll Engn, Crest Ctr Nanomat, Washington, DC 20059 USA |
| 推荐引用方式 GB/T 7714 | Dong, Quanxiao,Ding, Yanfen,Wen, Bin,et al. Improvement of thermal stability of polypropylene using DOPO-immobilized silica nanoparticles[J]. COLLOID AND POLYMER SCIENCE,2012,290(14):1371-1380. |
| APA | Dong, Quanxiao.,Ding, Yanfen.,Wen, Bin.,Wang, Feng.,Dong, Huicong.,...&Yang, Mingshu.(2012).Improvement of thermal stability of polypropylene using DOPO-immobilized silica nanoparticles.COLLOID AND POLYMER SCIENCE,290(14),1371-1380. |
| MLA | Dong, Quanxiao,et al."Improvement of thermal stability of polypropylene using DOPO-immobilized silica nanoparticles".COLLOID AND POLYMER SCIENCE 290.14(2012):1371-1380. |
入库方式： OAI收割
来源：化学研究所
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