Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (03): 50-55.doi: 10.13475/j.fzxb.20200607606

• Fiber Materials • Previous Articles     Next Articles

Preparation of polyacrylonitrile hollow porous shaped fibers and its performance

WANG Huiyun, WANG Ping, LI Yuanyuan, ZHANG Yan()   

  1. College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215000, China
  • Received:2020-06-30 Revised:2020-12-02 Online:2021-03-15 Published:2021-03-17
  • Contact: ZHANG Yan E-mail:yanzhang86@suda.edu.cn

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Abstract:

In order to obtain hollow porous fibers with thermal insulation performance, the coaxial wet spinning method was used to prepare irregular polyacrylonitrile fibers with both hollow and mesoporous structures. Polyacrylonitrile (PAN) and N,N-dimethylformamide (DMF) were blended to get cortical solution, and polyvinylpyrrolidone (PVP) and DMF were blended to get core solution. Subsequently, the solution was introduced to the coagulation bath through the coaxial shaped spinneret to obtain the primary fibers, and then the PAN-based shaped fibers with high porosity were obtained after washing and drying. Orthogonal experiments were adopted to optimize reaction conditions, and the structures and performance of the fiber were characterized. The results show that the fiber cross-section is of shaped profiles, and the sheath has a three-level structure with multi-scale pore diameters, including micropores (200 μm), submicron pores (200 nm) and nanopores (20 nm). The concentration of cortical solution is the main factor affecting the specific surface area of fiber. The breaking strength of the fiber can reach 390.88 cN. The thermal insulation performance of fiber is better than that of wool.

Key words: wet spinning, shaped fiber, hollow porous fiber, polyacrylonitrile fiber, thermal performance

CLC Number: 

  • TS104.72

Tab.1

Orthogonal experiment design scheme"

试验编号 A
PAN质量
分数/%		 B
PVP质量
分数/%		 C
皮芯层溶液
流速比		 D
凝固浴DMF
质量分数/%
1 10 10 1∶10 5
2 10 15 1∶20 10
3 10 20 1∶80 20
4 15 10 1∶20 20
5 15 15 1∶80 5
6 15 20 1∶10 10
7 17 10 1∶80 10
8 17 15 1∶10 20
9 17 20 1∶20 5

Fig.1

SEM images of hollow porous shaped PAN fibers. (a)Sample 1 (×70);(b) Sample 2 (×70); (c) Sample 3 (×70); (d) Sample 4 (×70); (e) Sample 5 (×70);(f) Sample 6 (×70); (g) Sample 7 (×70); (h) Sample 8 (×70); (i) Sample 9 (×70); (j) Partial enlarged view of sample 5 (×400); (k) Partial enlarged view of sample 5 (×1 000); (l) Partial enlarged view of sample 5 (×20 000)"

Tab.2

Size and structure parameters of hollow porous shaped PAN fiber"

样品编号 中空度/% 异形度/%
1 7.98 39.08
2 2.49 43.75
3 7.74 36.00
4 2.25 49.78
5 3.41 58.91
6 7.07 22.68
7 27.66 30.56
8 39.04 24.00
9 36.00 23.44

Fig.2

N2 adsorption-desorption isotherm of hollow porous shaped PAN ?bers. (a)Sample 1~3;(b)Sample 4~6;(c)Sample 7~9"

Tab.3

Pore structure parameters of hollow porous shaped ?ber"

样品编号 比表面积/
(m2·g-1)		 孔体积/
(cm3·g-1)		 孔直径/nm
1 24.58 0.081 16.37
2 8.50 0.052 68.20
3 10.86 0.046 31.01
4 17.75 0.073 18.39
5 10.45 0.074 41.51
6 9.90 0.067 33.73
7 4.43 0.004 5.11
8 7.48 0.008 4.82
9 5.82 0.028 58.99

Fig.3

XRD curves of hollow porous shaped PAN fiber"

Tab.4

Range analysis of results breaking force"

试验编号 因素 断裂强力/cN
A B C D
1 1 1 1 1 107.22
2 1 2 2 2 131.71
3 1 3 3 3 135.85
4 2 1 2 3 300.72
5 2 2 3 1 332.27
6 2 3 1 2 305.32
7 3 1 3 2 380.26
8 3 2 1 3 382.81
9 3 3 2 1 317.14
K1 374.78 788.20 795.35 756.63
K2 938.29 846.79 749.57 817.29
K3 1 080.21 758.31 848.38 818.93
k1 124.93 262.73 265.12 252.21
k2 312.76 282.26 249.86 272.43
k3 360.07 252.77 282.79 272.98
极差 235.14 29.49 32.94 20.77
主次因素 A>C>B>D
最优水平 A3 B2 C3 D3
最优组合 A3 B2 C3 D3

Fig.4

Thermal image of hollow porous shaped PAN fiber"

[1] ZHANG Bing, LU Chunxiang, LIU Yaodong, et al. Wet spun polyacrylonitrile-based hollow-mesoporous carbon fiber: stabilization, carbonization and its basic properties[J]. Polymer Degradation and Stability, 2019,170:109021.
[2] LI Ying, LU Chunxiang, ZHANG Shouchun, et al. Nitrogen- and oxygen-enriched 3D hierarchical porous carbon fibers: synjournal and superior supercapacity[J]. Journal of Materials Chemistry A, 2015,3(28):14817-14825.
[3] JANG Joonyoung, KIM Heeeun, KANG Suhee, et al. Urea-assisted template-less synjournal of heavily nitrogen-doped hollow carbon fibers for the anode material of lithium-ion batteries[J]. New Journal of Chemistry, 2019,43(9):3821-3828.
[4] LI Weiqiang, GE Xiao, ZHANG Hao, et al. Hollow mesoporous SiO2 sphere nanoarchitectures with encapsulated silver nanoparticles for catalytic reduction of 4-nitrophenol[J]. Inorganic Chemistry Frontiers, 2016,3(5):663-670.
[5] PENG Na, WIDJOJO Natalia, SUKITPANEENIT Panu, et al. Evolution of polymeric hollow fibers as sustainable technologies: past, present, and future[J]. Progress in Polymer Science, 2012,37(10):1401-1424.
[6] DUAN Nannan, GENG Xue, YE Lin, et al. A vascular tissue engineering scaffold with core-shell structured nano-fibers formed by coaxial electrospinning and its biocompatibility evaluation[J]. Biomedical Materials, 2016,11(3):035007.
pmid: 27206161
[7] ZHANG Bing, LU Chunxiang, LIU Yaodong, et al. Wet spun polyacrylonitrile-based hollow-mesoporous fibers with different draw ratios[J]. Polymer, 2019,179:121618.
[8] JIA Zhen, LU Chunxiang, LIU Yaodong, et al. Lignin/polyacrylonitrile composite hollow fibers prepared by wet-spinning method[J]. ACS Sustainable Chemistry & Engineering, 2016,4(5):2838-2842.
[9] MENG Si, ZHANG Junyan, CHEN Wenping, et al. Construction of continuous hollow silica aerogel fibers with hierarchical pores and excellent adsorption performance[J]. Microporous and Mesoporous Materials, 2019,273:294-296.
doi: 10.1016/j.micromeso.2018.07.021
[10] ÁNGEL E, MERCADO P, ALEXANDERM S, et al. Synjournal and characterization of polycaprolactone urethane hollow fiber membranes as small diameter vascular grafts[J]. Materials Science and Engineering C, 2016,64:61-73.
pmid: 27127029
[11] 张竞, 何伟, 马腾, 等. 静电纺丝PAN纳米纤维的制备与表征[J]. 江苏科技大学学报(自然科学版), 2012,25(4):342-345.
ZHANG Jing, HE Wei, MA Teng, et al. Preparation and characterization of PAN nanofiber via electrostatic spinning[J]. Journal of Jiangsu University of Science and Technology (Natural Science Edition), 2012,25(4):342-345.
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