| Combined Effects of Stretching and Nanofillers on theCrystalline Structure and Mechanical Properties ofPolypropylene and Single-walled Carbon NanotubeComposite Fibers简 |
| |
| 引用本文： | 傅强. Combined Effects of Stretching and Nanofillers on theCrystalline Structure and Mechanical Properties ofPolypropylene and Single-walled Carbon NanotubeComposite Fibers简[J]. 高分子科学, 2014, 32(2): 245-254. DOI: 10.1007/s10118-014-1397-x |
| |
| 作者姓名： | 傅强 |
| |
| 作者单位： | [1]College of Polymer Science and Eng＇ineering, State KeyLaboratory of Polymer Materials Engineering, Sichuan University, Chengdu 610065, China [2]Zhejiang Industry ＆ Trade Vocational College, Wenzhou 325003, China |
| |
| 基金项目： | This work was financially supported by the National Natural Science Foundation of China （Nos. 21034005 and 51121001）. |
| |
| 摘 要： | The combined effects of stretching and single-walled carbon nanotubes （SWCNTs） on crystalline structure and mechanical properties were systematically investigated in melt-spun polypropylene （PP） fibers prepared at two different draw ratios. The dispersion, alignment of the SWCNT bundles and interfacial crystalline structure in the composite fibers are significantly influenced by the stretching force during the melt spinning. The nanohybrid shish kebab （NHSK） superstructure where extended PP chains and aligned SWCNT bundle as hybrid shish and PP lamellae as kebab has been successfully obtained in the composite fibers prepared at the high draw ratio and the related formation mechanism is discussed based on the results of morphological observations and 2d-SAXS patterns. Large improvement in tensile strength and modulus has been realized at the high draw ratio due to the enhanced orientation and dispersion of SWCNT bundles as well as the formation of NHSK.
|
| 关 键 词： | 单壁碳纳米管束 复合纤维 晶体结构 拉伸比 聚丙烯 力学性能 纳米填料 SWCNTs |
Combined effects of stretching and nanofillers on the crystalline structure and mechanical properties of polypropylene and single-walled carbon nanotube composite fibers |
| |
| Yao Gao,Gui-ying Zong,Hong-wei Bai,Qiang Fu. Combined effects of stretching and nanofillers on the crystalline structure and mechanical properties of polypropylene and single-walled carbon nanotube composite fibers[J]. Chinese Journal of Polymer Science, 2014, 32(2): 245-254. DOI: 10.1007/s10118-014-1397-x |
| |
| Authors: | Yao Gao Gui-ying Zong Hong-wei Bai Qiang Fu |
| |
| Affiliation: | 1. College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
2. Zhejiang Industry & Trade Vocational College, Wenzhou, 325003, China
|
| |
| Abstract: | The combined effects of stretching and single-walled carbon nanotubes (SWCNTs) on crystalline structure and mechanical properties were systematically investigated in melt-spun polypropylene (PP) fibers prepared at two different draw ratios. The dispersion, alignment of the SWCNT bundles and interfacial crystalline structure in the composite fibers are significantly influenced by the stretching force during the melt spinning. The nanohybrid shish kebab (NHSK) superstructure where extended PP chains and aligned SWCNT bundle as hybrid shish and PP lamellae as kebab has been successfully obtained in the composite fibers prepared at the high draw ratio and the related formation mechanism is discussed based on the results of morphological observations and 2d-SAXS patterns. Large improvement in tensile strength and modulus has been realized at the high draw ratio due to the enhanced orientation and dispersion of SWCNT bundles as well as the formation of NHSK. |
| |
| Keywords: | Stretching SWCNTs Nanohybrid shish kebab Mechanical properties. |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ |
