Effect of Orientation on the Crystallization Behavior of Poly(L-lactic acid)/Poly (D-lactic acid) Fibers
文献类型：期刊论文
| 作者 | Zhang, Xiu-qin1; Xiong, Zu-jiang2,3; Liu, Guo-ming2; Yin, Yong-ai2; Wang, Rui1; Wang, Du-jin2 |
| 刊名 | ACTA POLYMERICA SINICA
 |
| 出版日期 | 2014-08-20 |
| 期号 | 8页码:1048-1055 |
| 关键词 | Plla/pdla Fibers Orientation Crystallization |
| ISSN号 | 1000-3304 |
| 英文摘要 | Poly ( L-lactic acid ) / poly ( D-lactic acid ) ( PLLA/PDLA ) as-spun fibers were prepared by melt spinning and drawn fibers were obtained by stretching the as-spun fibers at 60 degrees C. The crystallization behavior of PLLA/PDLA fibers with different initial structure was investigated systematically with the combination of X-ray scattering, differential scanning calorimetry ( DSC ), scanning electron microscopy ( SEM ) and Fourier transform infrared spectroscopy ( FTIR ). The key point was to clarify the effect of orientation on the crystallization transition of PLA fibers. The results indicated that orientation can induce the formation of the sc-crystals and increase the crystallinity of the PLLA/PDLA fibers. Furthermore, there was only the formation of sc-crystals during cooling process in the drawn fibers, while the alpha-crystals appeared at 150 degrees C in the as-spun fibers. 2D WAXS and FTIR results showed that the oriented sc-crystals hindered the formation of alpha-crystals. Based on the above results, the highly-oriented PLLA/PDLA fibers containing pure sc-crystals with high crystallinity can be obtained by drawing the as-spun fibers at low temperatures and then annealing at a temperature above the melting point of alpha-crystals. |
| 语种 | 英语 |
| WOS记录号 | WOS:000340351000003 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51659]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Rui |
| 作者单位 | 1.Beijing Inst Fash Technol, Sch Mat Sci & Engn, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 3.China Leather & Footwear Ind Res Inst, Beijing 100015, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiu-qin,Xiong, Zu-jiang,Liu, Guo-ming,et al. Effect of Orientation on the Crystallization Behavior of Poly(L-lactic acid)/Poly (D-lactic acid) Fibers[J]. ACTA POLYMERICA SINICA,2014(8):1048-1055. |
| APA | Zhang, Xiu-qin,Xiong, Zu-jiang,Liu, Guo-ming,Yin, Yong-ai,Wang, Rui,&Wang, Du-jin.(2014).Effect of Orientation on the Crystallization Behavior of Poly(L-lactic acid)/Poly (D-lactic acid) Fibers.ACTA POLYMERICA SINICA(8),1048-1055. |
| MLA | Zhang, Xiu-qin,et al."Effect of Orientation on the Crystallization Behavior of Poly(L-lactic acid)/Poly (D-lactic acid) Fibers".ACTA POLYMERICA SINICA .8(2014):1048-1055. |
入库方式： OAI收割
来源：化学研究所
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