Citation: Jing-jing Yan, Chang-fa Xiao, Chun Wang, Hao Fu, Shu-lin An, Ya-ming Jiang. Crystalline Structure Changes of Poly(vinylidene fluoride) Fibers during Stretching Process[J]. Acta Polymerica Sinica, ;2019, 50(7): 752-760. doi: 10.11777/j.issn1000-3304.2018.18261 shu

Crystalline Structure Changes of Poly(vinylidene fluoride) Fibers during Stretching Process

School of Textile Science and Engineering, Tianjin Polytechnic University, State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387

Corresponding author: Chang-fa Xiao, xiaochangfa@163.com
Received Date: 3 December 2018
Revised Date: 26 December 2018
Available Online: 1 February 2019

The poly(vinylidene fluoride) (PVDF) as-spun fibers with different spin-stretching ratios were fabricated via melt-spinning method using plunger spinning machine. PVDF fibers with different post-stretching ratios were subsequently obtained by post-stretching method under the thermal treatment condition. The crystal and orientation structure of the fibers were investigated by X-ray diffraction (XRD), differential scanning calorimetry (DSC), polarizing optical microscopy (POM) and so on. The results indicated the orientation of α crystal and macromolecular increased with the increasing spin-stretching ratio. Furthermore, as the higher spin-stretching ratio increased, the degree of crystallinity of as-spun fiber was prone to perfection. Furthermore, according to the POM photomicrograph, the horizon of extinction position was almost entirely black, and the horizon of diagonal position was getting brighter, due to the increase of the anisotropy of as-spun fibers. This was attributed that the irregular fiber macromolecules were stretched to regular structure. When spin-stretching ratio was 330, the crystallinity of as-spun fiber could reach 56.38% and the orientation factor of α(110/200) crystal plane was up to 0.89. In terms of post-stretching technique, the stretching ratios had no significant influence on the degree of crystallinity. However, the post-stretching process played a positive role in the transition of the crystal phase from α to β. The molecular chains of the fibers are easier to slip and arrange regularly along the fiber axis during spin-stretching process. The conformation was easier to transfer from α phase to β phase owing to the segmental motion of molecular chains during post-stretching process. Especially, the orientation of β crystal was also improved at the same time. Specially, when the post-stretching was up to the stage of uniform reduction of fiber diameter, the orientation of β crystal retained a high level. When post-stretching ratio was 11, the content of β crystal could account for 82.85% and the orientation factor of β(110/200) crystal plane was up to 0.83.
- Poly(vinylidene fluoride) fiber,
- Spin-stretching,
- Post-stretching,
- Orientation,
- Crystal structure
1. [1]
2. [2]
  Humphrey J S, Amin-Sanayei R. Vinylidene Fluoride Polymers. Encyclopedia of Polymer Science and Technology, 2001. 476 – 485
3. [3]
  Du C H, Zhu B K, Xu Y Y. J Appl Polym Sci, 2007, 104(4): 2254 − 2259 doi: 10.1002/(ISSN)1097-4628
4. [4]
5. [5]
  Milind V M, Devang V K, Ashok M. Polym Eng Sci, 2010, 47(12): 1992 − 2004
6. [6]
  Lund A, Hagström B. J Appl Polym Sci, 2010, 116(5): 2685 − 2693
7. [7]
  Gaétan L, Yves M, Robert G, Martin W K, Louisette M, Thien H, Yvan D. J Biomed Mater Res, 1995, 29(12): 1525 doi: 10.1002/(ISSN)1097-4636
8. [8]
9. [9]
10. [10]
11. [11]
  Schultz J, Hsiao B S, Samon J M. Polymer, 2000, 41(25): 8887 − 8895 doi: 10.1016/S0032-3861(00)00232-9
12. [12]
  Sajkiewicz P, Wasiak A, Gocłowski Z. Eur Polym J, 1999, 35(3): 423 − 429 doi: 10.1016/S0014-3057(98)00136-0
13. [13]
  Masamichi K, Kohji T, Hiroyuki T. Macromolecules, 1975, 8(2): 158 − 171 doi: 10.1021/ma60044a013
14. [14]
  Sencadas V, Costa C M, Moreira V, Monteiro J, Mendiratta S K, Mano J F, Lanceros-Méndez S. e-Polymers, 2005, 5(1): 10 − 21
15. [15]
  Gregorio R, Ueno E M. J Mater Sci, 1999, 34(18): 4489 − 4500 doi: 10.1023/A:1004689205706
16. [16]
  Guo Z W, Nilsson E, Rigdahl M, Hagström B. J Appl Polym Sci, 2013, 130(4): 2603 − 2609 doi: 10.1002/app.39484
17. [17]
  Gregorio R. J Appl Polym Sci, 2010, 100(4): 3272 − 3279
18. [18]
19. [19]
20. [20]
21. [21]
  Zhang H, Ren P, Zhang G F, Xiao C F. J Wuhan Univ Technol, 2006, 21(4): 53 − 55 doi: 10.1007/BF02841204
22. [22]
  Hsu T C, Geil P H. J Mater Sci, 1989, 24(4): 1219 − 1232 doi: 10.1007/BF02397050
23. [23]
  Matsushige K, Nagata K, Imada S, Takemura T. Polymer, 1980, 21(12): 1391 − 1397 doi: 10.1016/0032-3861(80)90138-X
24. [24]
  Marega C, Marigo A. Eur Polym J, 2003, 39(8): 1713 − 1720 doi: 10.1016/S0014-3057(03)00062-4
25. [25]
  Steinmann W, Walter S, Seide G, Gries T, Roth G, Schubnell M. J Appl Polym Sci, 2011, 120(1): 21 − 35 doi: 10.1002/app.v120.1
26. [26]
  Tang W, Deng L J, Xu K W, Lu J. Surf Coat Technol, 2007, 201(12): 5944 − 5947 doi: 10.1016/j.surfcoat.2006.10.049
27. [27]
  Ma W Z, Zhang J, Chen S J, Wang X L. Colloid Polym Sci, 2008, 286(10): 1193 − 1202 doi: 10.1007/s00396-008-1889-8
28. [28]
  Lund A, Hagström B. J Appl Polym Sci, 2011, 120(2): 1080 − 1089 doi: 10.1002/app.v120.2
29. [29]
30. [30]
31. [31]
32. [32]
  Xiao C F, Zhang Y F. Chinese J Polym Sci, 2000, 18(1): 81 − 86
33. [33]
  Gregorio R, Cestari M. J Polym Sci, Part B: Polym Phys, 1994, 32(5): 859 − 870 doi: 10.1002/polb.1994.090320509
34. [34]
  Sencadas V, Costa C M, Moreira V, Monteiro J, Mendiratta S K, Mano J F, Lanceros-Méndez S. e-Polymers, 2013, 5(1): 10 − 21
35. [35]
36. [36]
1. [1]
  Yan Liu , Yuexiang Zhu , Luhua Lai . Introduction to Blended and Small-Class Teaching in Structural Chemistry: Exploring the Structure and Properties of Crystals. University Chemistry, 2024, 39(3): 1-4. doi: 10.3866/PKU.DXHX202306084
2. [2]
  Haitang WANG , Yanni LING , Xiaqing MA , Yuxin CHEN , Rui ZHANG , Keyi WANG , Ying ZHANG , Wenmin WANG . Construction, crystal structures, and biological activities of two Ln^Ⅲ₃ complexes. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1474-1482. doi: 10.11862/CJIC.20240188
3. [3]
  Weina Wang , Fengyi Liu , Wenliang Wang . “Extracting Commonality, Delving into Typicals, Deriving Individuality”: Constructing a Knowledge Graph of Crystal Structures. University Chemistry, 2024, 39(3): 36-42. doi: 10.3866/PKU.DXHX202308029
4. [4]
  Junqiao Zhuo , Xinchen Huang , Qi Wang . Symbol Representation of the Packing-Filling Model of the Crystal Structure and Its Application. University Chemistry, 2024, 39(3): 70-77. doi: 10.3866/PKU.DXHX202311100
5. [5]
  Changqing MIAO , Fengjiao CHEN , Wenyu LI , Shujie WEI , Yuqing YAO , Keyi WANG , Ni WANG , Xiaoyan XIN , Ming FANG . Crystal structures, DNA action, and antibacterial activities of three tetranuclear lanthanide-based complexes. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2455-2465. doi: 10.11862/CJIC.20240192
6. [6]
  Jing WU , Puzhen HUI , Huilin ZHENG , Pingchuan YUAN , Chunfei WANG , Hui WANG , Xiaoxia GU . Synthesis, crystal structures, and antitumor activities of transition metal complexes incorporating a naphthol-aldehyde Schiff base ligand. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2422-2428. doi: 10.11862/CJIC.20240278
7. [7]
  Hongjie SHEN , Haozhe MIAO , Yuhe YANG , Yinghua LI , Deguang HUANG , Xiaofeng ZHANG . Synthesis, crystal structure, and fluorescence properties of two Cu(Ⅰ) complexes based on pyridyl ligand. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 855-863. doi: 10.11862/CJIC.20250009
8. [8]
  Wenyan Dan , Weijie Li , Xiaogang Wang . The Technical Analysis of Visual Software ShelXle for Refinement of Small Molecular Crystal Structure. University Chemistry, 2024, 39(3): 63-69. doi: 10.3866/PKU.DXHX202302060
9. [9]
  Xinting XIONG , Zhiqiang XIONG , Panlei XIAO , Xuliang NIE , Xiuying SONG , Xiuguang YI . Synthesis, crystal structures, Hirshfeld surface analysis, and antifungal activity of two complexes Na(Ⅰ)/Cd(Ⅱ) assembled by 5-bromo-2-hydroxybenzoic acid ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1661-1670. doi: 10.11862/CJIC.20240145
10. [10]
  Hexing SONG , Zan SUN . Synthesis, crystal structure, Hirshfeld surface analysis, and fluorescent sensing for Fe³⁺ of an Mn(Ⅱ) complex based on 1-naphthalic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 885-892. doi: 10.11862/CJIC.20240402
11. [11]
  Yahui HAN , Jinjin ZHAO , Ning REN , Jianjun ZHANG . Synthesis, crystal structure, thermal decomposition mechanism, and fluorescence properties of benzoic acid and 4-hydroxy-2, 2′: 6′, 2″-terpyridine lanthanide complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 969-982. doi: 10.11862/CJIC.20240395
12. [12]
  Yuxin CHEN , Yanni LING , Yuqing YAO , Keyi WANG , Linna LI , Xin ZHANG , Qin WANG , Hongdao LI , Wenmin WANG . Construction, structures, and interaction with DNA of two Sm^Ⅲ₄ complexes. Chinese Journal of Inorganic Chemistry, 2025, 41(6): 1141-1150. doi: 10.11862/CJIC.20240258
13. [13]
  Jingjing QING , Fan HE , Zhihui LIU , Shuaipeng HOU , Ya LIU , Yifan JIANG , Mengting TAN , Lifang HE , Fuxing ZHANG , Xiaoming ZHU . Synthesis, structure, and anticancer activity of two complexes of dimethylglyoxime organotin. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1301-1308. doi: 10.11862/CJIC.20240003
14. [14]
  Xiaoling LUO , Pintian ZOU , Xiaoyan WANG , Zheng LIU , Xiangfei KONG , Qun TANG , Sheng WANG . Synthesis, crystal structures, and properties of lanthanide metal-organic frameworks based on 2, 5-dibromoterephthalic acid ligand. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1143-1150. doi: 10.11862/CJIC.20230271
15. [15]
  Xin MA , Ya SUN , Na SUN , Qian KANG , Jiajia ZHANG , Ruitao ZHU , Xiaoli GAO . A Tb₂ complex based on polydentate Schiff base: Crystal structure, fluorescence properties, and biological activity. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1347-1356. doi: 10.11862/CJIC.20230357
16. [16]
  Yingchun ZHANG , Yiwei SHI , Ruijie YANG , Xin WANG , Zhiguo SONG , Min WANG . Dual ligands manganese complexes based on benzene sulfonic acid and 2, 2′-bipyridine: Structure and catalytic properties and mechanism in Mannich reaction. Chinese Journal of Inorganic Chemistry, 2024, 40(8): 1501-1510. doi: 10.11862/CJIC.20240078
17. [17]
  Xiaowei TANG , Shiquan XIAO , Jingwen SUN , Yu ZHU , Xiaoting CHEN , Haiyan ZHANG . A zinc complex for the detection of anthrax biomarker. Chinese Journal of Inorganic Chemistry, 2024, 40(10): 1850-1860. doi: 10.11862/CJIC.20240173
18. [18]
  Jinfeng Chu , Lan Jin , Yu-Fei Song . Exploration and Practice of Flipped Classroom in Inorganic Chemistry Experiment: a Case Study on the Preparation of Inorganic Crystalline Compounds. University Chemistry, 2024, 39(2): 248-254. doi: 10.3866/PKU.DXHX202308016
19. [19]
  Yuyao Wang , Zhitao Cao , Zeyu Du , Xinxin Cao , Shuquan Liang . Research Progress of Iron-based Polyanionic Cathode Materials for Sodium-Ion Batteries. Acta Physico-Chimica Sinica, 2025, 41(4): 100035-. doi: 10.3866/PKU.WHXB202406014
20. [20]
  Linjie ZHU , Xufeng LIU . Electrocatalytic hydrogen evolution performance of tetra-iron complexes with bridging diphosphine ligands. Chinese Journal of Inorganic Chemistry, 2025, 41(2): 321-328. doi: 10.11862/CJIC.20240207

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(195)
HTML views(7)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142