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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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静电纺聚丙烯腈纳米纤维晶态结构及取向的形成
DOI: 10.3724/SP.J.1105.2012.12067, PP. 1389-1398
Keywords: 静电纺丝,聚丙烯腈,晶态结构及取向
Abstract:
采用新型流动水浴收集方式制备出连续单向排列的静电纺聚丙烯腈(PAN)纳米初生纤维,收集静电纺丝不同阶段的静电纺PAN纳米纤维,并在热水中进行后牵伸,使其伸长至原长的2倍、3倍.通过扫描电子显微镜(SEM)、广角X射线衍射(WAXD)等方法对静电纺丝过程不同阶段的PAN纳米纤维的形貌、直径、致密性、晶态结构及取向进行了表征.研究表明,(1)在静电纺丝过程中PAN纺丝液射流受到牵伸作用,静电纺PAN纳米纤维的晶态结构形成并逐渐完善.纳米纤维的直径随着静电纺丝过程逐渐减小(从664nm减小至353nm),结晶度从42.55%增加至47.76%,晶区取向由37.48%提高至43.93%.纳米纤维致密性也逐渐提高(密度由1.1917g/cm3增加至1.1943g/cm3).(2)静电纺丝过程进入PAN射流溶剂含量较低的阶段后,继续通过静电纺丝过程提高纳米初生纤维晶态结构及取向的效果很有限,而通过热水后牵伸过程可进一步使晶态结构及取向得到有效果的完善.研究同时发现,静电纺初生纤维的晶态结构及取向与其在热水牵伸过程中的进一步完善具有相关性.
| [1] | 2 Donnet J B,Wang T K,Peng J C.Carbon Fibers.New York:Marcel Dekker,1998.231~309
|
| [2] | 4 Naito K,Tanaka Y,Yang J M,Kagawa Y.Carbon,2008,46(2):189~195
|
| [3] | 5 Johnson J W,Thorne D J.Carbon,1969,7(6):659~660
|
| [4] | 6 Watt W.Proc R Soc London A,1970,319(1536):5~9
|
| [5] | 11 Reneker D H,Chun I.Nanotechnology,1996,7(3):216~223
|
| [6] | 14 Greiner A,Joachim H.Angew Chem Int Ed,2007,46(30):5670~5703
|
| [7] | 15 Reneker D H,Yarin A L,Fong H,Koombhongse S.J Appl Phys,2000,87(9):4531~4547
|
| [8] | 16 Liu J,Yue Z R,Fong H.Small,2009,5(5):536~542
|
| [9] | 17 Zussman E,Chen X,Ding W,Calabri L,Dikin D A,Quintana J P,Ruoff R S.Carbon,2005,43(10):2175~2185
|
| [10] | 18 Liu L,Chen G,Gao H,Zhang L F,Ma S,Liang J Y,Fong H.Carbon,2012,50(3):1262~1270
|
| [11] | 19 Lai C L,Zhong G J,Yue Z R,Chen G,Zhang L F,Vakili A,Wang Y,Zhu L,Liu J,Fong H.Polymer,2011,52(2):519~528
|
| [12] | 20 Wilchinsky Z W.J Appl Phys,1959,30(5):792~797
|
| [13] | 1 Morgan P. Carbon Fibers and Their Composites.Boca Raton:CRC Press,2005.185~267
|
| [14] | 3 Chand S.J Mater Sci,2000,35(6):1303~1313
|
| [15] | 7 Thorne D J.Nature,1974,248(5451):754~756
|
| [16] | 8 Moreton R,Watt W.Carbon,1974,12(5):543~554
|
| [17] | 9 Fitzer E.Carbon,1989,27(5):621~645
|
| [18] | 10 Liu J,Zhou P X,Zhang L F,Ma Z K,Liang J Y,Fong H.Carbon,2009,47(4):1087~1095
|
| [19] | 12 Dzenis Y.Science,2004,304(5679):1917~1919
|
| [20] | 13 Fong H.Polymeric Nanostructures and Their Applications.Stevenson Ranch:American Scientific Publishers,CA,2007.451~474
|
| [21] | 21 Zhou Z P,Lai C L,Zhang L F,Qian Y,Hou H Q,Reneker D H,Fong H.Polymer,2009,50(13):2999~3006
|
| [22] | 22 Kalayci V E,Patra P K,Kim Y K,Ugbolue S C,Warner S B.Polymer,2005,46(18):7191~7200
|
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