Isothermal Crystallization and Subsequent Melting Behavior of Poly(ethylene terephthalate)/Silica Nanocomposites
文献类型：期刊论文
| 作者 | Tian XY ; Ruan CJ ; Cui P ; Liu WT ; Zheng J ; Zhang X ; Yao XY ; Zheng K ; Li Y |
| 刊名 | Journal of Macromolecular Sciencew, Part B: Physics
 |
| 出版日期 | 2006 |
| 期号 | 45页码:835–848 |
| 关键词 | nanocomposites crystallization poly(ethylene terephthalate) melting behavior crystallization rate differential scanning calorimetry |
| 合作状况 | 国内 |
| 中文摘要 | The crystallization process of poly(ethylene terephthalate)/silica nanocomposites were investigated by differential scanning calorimetry (DSC) and then analyzed using the Avrami method. The results indicated that the crystallization of pure poly(ethylene terephthalate) (PET) was fitted for thermal nucleation and three-dimensional spherical growth throughout the whole process, whereas the crystallization of PET/silica nanocomposites exhibits two stages. The first stage corresponds to athermal nucleation and three-dimensional spherical growth, and the second stage corresponds to recrystallization caused by the earlier spherulites impingement. The crystallization rate increases remarkably and the activation energies decrease considerably when silica nanoparticles are added. The subsequent melting behavior of the crystallized samples shows that the melting point (Tm) of nanocomposites is higher than that of pure PET, which might be caused by two factors: (1) The higher melting point might be due to some hindrance to the PET chains caused by the nanoparticles at the beginning of the melting process; (2) it might also be the case that more perfect crystals can be formed due to the higher crystallization temperatures and lower activation energies of PET/silica nanocomposites. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2009-12-22 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/90]  |
| 专题 | 宁波材料技术与工程研究所_宁波所知识产出 |
| 推荐引用方式 GB/T 7714 | Tian XY,Ruan CJ,Cui P,et al. Isothermal Crystallization and Subsequent Melting Behavior of Poly(ethylene terephthalate)/Silica Nanocomposites[J]. Journal of Macromolecular Sciencew, Part B: Physics,2006(45):835–848. |
| APA | Tian XY.,Ruan CJ.,Cui P.,Liu WT.,Zheng J.,...&Li Y.(2006).Isothermal Crystallization and Subsequent Melting Behavior of Poly(ethylene terephthalate)/Silica Nanocomposites.Journal of Macromolecular Sciencew, Part B: Physics(45),835–848. |
| MLA | Tian XY,et al."Isothermal Crystallization and Subsequent Melting Behavior of Poly(ethylene terephthalate)/Silica Nanocomposites".Journal of Macromolecular Sciencew, Part B: Physics .45(2006):835–848. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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