Rheological Behavior of Isotactic Polypropylene(iPP) Melts in Supercooling State
文献类型：期刊论文
| 作者 | Liu Yu-Hai2,3; Li Hui-Zhen1,4; Liu Xi1,5; Hu Li-Ping5; Yang Zhan-Lan1; Xu Yi-Zhuang1; Wu Jin-Guang1 |
| 刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
 |
| 出版日期 | 2010-08-10 |
| 卷号 | 31期号:8页码:1671-1675 |
| 关键词 | Isotactic Polypropylene(Ipp) Supercooling Melt Spinning Rheological Behavior |
| ISSN号 | 0251-0790 |
| 英文摘要 | Decreasing the processing temperature can prevent thermal degradation of polymeric material and reduce energy consumption in the manufacturing process. In this paper, capillary rheometer was used to investigate the theological behavior of isotactic polypropylene (iPP) in supercooling states. Experimental results demonstrate that the iPP melt in supercooling state have an induction period. After the induction period, the iPP melt undergoes gelation that is manifested by rapid increasing of the shear viscosity and leads to solidification and crystallization of iPP. During the induction. period, the rheological behavior of iPP melt in supercooling states are similar to the conventional iPP melt whose temperature is above the melting temperature of iPP. The length of the induction period depends on the temperature of the melt. At 160, the length of the induction period is long enough so that it is possible to produce iPP fibers by spinning supercooling melt. In the suitable process conditions, the mechanical performance, FTIR spectra and XRD patterns of the iPP fibers produced from supercooling iPP melt are similar to those of the iPP fibers prepared from high temperature iPP melt. Thus, this work suggests that it is possible to develop an energy-saving technique to manufacturing of iPP fibers. |
| 语种 | 英语 |
| WOS记录号 | WOS:000281590200036 |
| 出版者 | HIGHER EDUCATION PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/69511]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Xu Yi-Zhuang |
| 作者单位 | 1.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Henan Normal Univ, Coll Chem & Environm Sci, Xinxiang 453007, Peoples R China 5.Liaoning Univ Tradit Chinese Med, Sch Pharmaceut Sci, Liaoning 110032, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu Yu-Hai,Li Hui-Zhen,Liu Xi,et al. Rheological Behavior of Isotactic Polypropylene(iPP) Melts in Supercooling State[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2010,31(8):1671-1675. |
| APA | Liu Yu-Hai.,Li Hui-Zhen.,Liu Xi.,Hu Li-Ping.,Yang Zhan-Lan.,...&Wu Jin-Guang.(2010).Rheological Behavior of Isotactic Polypropylene(iPP) Melts in Supercooling State.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,31(8),1671-1675. |
| MLA | Liu Yu-Hai,et al."Rheological Behavior of Isotactic Polypropylene(iPP) Melts in Supercooling State".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 31.8(2010):1671-1675. |
入库方式： OAI收割
来源：化学研究所
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