Microstructure and thermal properties of ethylene-(vinyl acetate) copolymer/rectorite nanocomposites
文献类型：期刊论文
| 作者 | Fang, PF; Chen, Z; Zhang, SP; Wang, SJ; Wang, LY; Feng, JW |
| 刊名 | POLYMER INTERNATIONAL
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 55期号:3页码:312-318 |
| 关键词 | EVA nanocomposites rectorite thermal properties crystallization behavior free volume |
| 英文摘要 | Ethylene-(vinyl acetate) copolymer (EVA)/rectorite nanocomposites were prepared by direct melt extrusion of EVA and organo-rectorite. The microstructures and thermal properties of EVA nanocomposites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), solid-state nuclear magnetic spectroscopy, positron annihilation spectroscopy, thermal gravimetric analysis (TGA) and dynamic mechanical analysis techniques. XRD pattern and SEM images show that the intercalated structure is formed and rectorite is finely dispersed in EVA matrix. When organoclay content of the hybrid increases to 7.5 wt%, or pristine rectorite was used instead of organoclay, the crystallization behavior of EVA nanocomposite changes greatly and the ratio of the monoclinic to orthorhombic crystal increases significantly. The relative fractional free volume of the nanocomposite decreases with the increasing organo-rectorite content, and the values of damping factor (tan delta) for all nanocomposites are lower than that of pure EVA. These facts illuminate that intercalated structure restricts the segment motion and mobilization of polymer chain. TGA results of EVA nanocomposites in air indicate that deacylation of EVA is accelerated because of the catalytic effect and the thermal degradation of the main chain is delayed owing to the barrier effect of silicate layers. (C) 2005 Society of Chemical Industry. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Polymer Science |
| 研究领域[WOS] | Polymer Science |
| 关键词[WOS] | LAYERED SILICATE NANOCOMPOSITES ; DEGRADATION ; COPOLYMERS ; BEHAVIOR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235415900009 |
| 公开日期 | 2015-07-28 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/4810]  |
| 专题 | 武汉物理与数学研究所_2011年以前论文发表（包括2011年） |
| 作者单位 | 1.Wuhan Univ, Dept Phys, Wuhan 430072, Peoples R China 2.Wuhan Univ, Ctr Nanosci & Nanotechnol, Wuhan 430072, Peoples R China 3.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Fang, PF,Chen, Z,Zhang, SP,et al. Microstructure and thermal properties of ethylene-(vinyl acetate) copolymer/rectorite nanocomposites[J]. POLYMER INTERNATIONAL,2006,55(3):312-318. |
| APA | Fang, PF,Chen, Z,Zhang, SP,Wang, SJ,Wang, LY,&Feng, JW.(2006).Microstructure and thermal properties of ethylene-(vinyl acetate) copolymer/rectorite nanocomposites.POLYMER INTERNATIONAL,55(3),312-318. |
| MLA | Fang, PF,et al."Microstructure and thermal properties of ethylene-(vinyl acetate) copolymer/rectorite nanocomposites".POLYMER INTERNATIONAL 55.3(2006):312-318. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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