Variation of non-isothermal crystallization behavior of isotactic polypropylene with varying beta-nucleating agent content
文献类型：期刊论文
| 作者 | Xu, Linli1,2; Zhang, Xiuju3; Xu, Kai1; Lin, Shaoquan4; Chen, Mingcai1 |
| 刊名 | Polymer international
 |
| 出版日期 | 2010-10-01 |
| 卷号 | 59期号:10页码:1441-1450 |
| 关键词 | Isotactic polypropylene Non-isothermal crystallization Beta-nucleating agent Beta-pp Crystallization activation energy |
| ISSN号 | 0959-8103 |
| DOI | 10.1002/pi.2891 |
| 通讯作者 | Chen, mingcai(mcchen@gic.ac.cn) |
| 英文摘要 | The non-isothermal crystallization behavior, the crystallization kinetics, the crystallization activation energy and the morphology of isotactic polypropylene (ipp) with varying content of beta-nucleating agent were investigated using differential scanning calorimetry (dsc) and scanning electron microscopy (sem). the dsc results showed that the avrami equation modified by jeziorny and a method developed by mo and co-workers could be successfully used to describe the non-isothermal crystallization process of the nucleated ipps. the values of n showed that the non-isothermal crystallization of alpha- and beta-nucleated ipps corresponded to a tridimensional growth with homogeneous and heterogeneous nucleation, respectively. the values of crystallization rate constant showed that the rate of crystallization decreased for ipps with the addition of beta-nucleating agent. the crystallization activation energy increased with a small amount (less than 0.1 wt%) of beta-nucleating agent and decreased with higher concentration (more than 0.1 wt%). the changes of crystallization rate, crystallization time and crystallization activation energy of ipps with varying contents of beta-nucleating agent were mainly determined by the ratio of the content of alpha- and beta-phase in ipp (alpha-pp and beta-pp) from the dsc investigation, and the large size and many intercrossing lamellae between boundaries of beta-spherulites for ipps with small amounts of beta-nucleating agent and the small size and few intercrossing bands among the boundaries of beta-spherulites for ipps with large amounts of beta-nucleating agent from the sem examination. (c) 2010 society of chemical industry |
| WOS关键词 | FALLING WEIGHT IMPACT ; MELTING BEHAVIOR ; MECHANICAL-BEHAVIOR ; PHASE ; KINETICS ; COMPOSITES ; ALPHA ; TEMPERATURE ; MORPHOLOGY ; BLENDS |
| WOS研究方向 | Polymer Science |
| WOS类目 | Polymer Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000283103300019 |
| 出版者 | JOHN WILEY & SONS LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2413520 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Chen, Mingcai |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Chem, Guangzhou 510650, Guangdong, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China 3.Jinan Univ, Coll Mat Sci & Engn, Guangzhou 510632, Guangdong, Peoples R China 4.Guangdong Liansu Technol Co Ltd, Ctr Res & Dev, Guangdong 528278, Shunde, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Linli,Zhang, Xiuju,Xu, Kai,et al. Variation of non-isothermal crystallization behavior of isotactic polypropylene with varying beta-nucleating agent content[J]. Polymer international,2010,59(10):1441-1450. |
| APA | Xu, Linli,Zhang, Xiuju,Xu, Kai,Lin, Shaoquan,&Chen, Mingcai.(2010).Variation of non-isothermal crystallization behavior of isotactic polypropylene with varying beta-nucleating agent content.Polymer international,59(10),1441-1450. |
| MLA | Xu, Linli,et al."Variation of non-isothermal crystallization behavior of isotactic polypropylene with varying beta-nucleating agent content".Polymer international 59.10(2010):1441-1450. |
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来源：中国科学院大学
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