溶液喷射纺丝制备PMIA/MWNTs纳米纤维的研究（英文）
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摘要
采用溶液喷射纺丝技术制备间位芳纶/多壁碳纳米管(PMIA/MWNTs)纳米纤维,探讨了不同工艺参数下纳米纤维表观形貌和直径分布的变化,研究了MWNTs对PMIA纳米纤维膜结晶性能和力学性能的影响。结果表明:在拉伸风压为0.12 MPa、喷丝孔内径为0.4~0.5 mm时,可以制得形貌较好的PMIA/MWNTs纳米纤维;随MWNTs负载量的增加,制得纳米纤维的平均直径变粗,结晶度变大,纤维膜拉伸强度增大,断裂伸长率则下降;MWNTs的最佳负载量为0.3%,此时可制得形貌结构均匀,直径较细的PMIA/MWNTs纳米纤维,纤维平均直径为372 nm,纤维膜拉伸强度达到41.85 MPa,较纯PMIA纳米纤维膜提高了86%以上。
Poly-m-phenylene isophthalamide / multi-wall carbon nanotubes( PMIA / MANTs) nanofibers were prepared via solution blow spinning technique. The change of the surface morphology and diameter distribution of the nanofibers with the spinning parameters was discussed. The effect of MWNTs on the crystallization property and mechanical properties of PMIA nanofibers membrane was discussed. The results showed that the PMIA / MWNTs nanofibers could be produced with good morphology as the drawing air pressure was 0. 12 MPa and the inner diameter of the spinneret nozzle was 0. 4-0. 5 mm; as the load of MWNTs was increased,the average diameter and crystallinity of the nanofibers increased,the tensile strength of the nanofibers membrane increased and the elongation at break decreased; the PMIA / MWNTs nanofibers had uniform morphology and fine diameter with the average value of 372 nm,the tensile strength of the nanofibers membrane reached 41. 85 MPa with a growth more than 86% as compared with that of pure PMIA nanofibers membrane as the MWNTs load was optimized as 0. 3%.
Poly-m-phenylene isophthalamide / multi-wall carbon nanotubes( PMIA / MANTs) nanofibers were prepared via solution blow spinning technique. The change of the surface morphology and diameter distribution of the nanofibers with the spinning parameters was discussed. The effect of MWNTs on the crystallization property and mechanical properties of PMIA nanofibers membrane was discussed. The results showed that the PMIA / MWNTs nanofibers could be produced with good morphology as the drawing air pressure was 0. 12 MPa and the inner diameter of the spinneret nozzle was 0. 4-0. 5 mm; as the load of MWNTs was increased,the average diameter and crystallinity of the nanofibers increased,the tensile strength of the nanofibers membrane increased and the elongation at break decreased; the PMIA / MWNTs nanofibers had uniform morphology and fine diameter with the average value of 372 nm,the tensile strength of the nanofibers membrane reached 41. 85 MPa with a growth more than 86% as compared with that of pure PMIA nanofibers membrane as the MWNTs load was optimized as 0. 3%.
引文
[1]Medeiros E S,Glenn G M,Klamczynski A P,et al.Solution blow spinning:A new method to produce micro-and nanofibers from polymer solutions[J].J Appl Polym Sci,2009,113(4):2 322-2 330.
[2]Zhang Lifeng,Kopperstad P,West M,et al.Generation of polymer ultrafine fibers through solution(air-)blowing[J].J Appl Polym Sci,2009,114(6):3 479-3 486.
[3]Zhuang Xupin,Yang Xiaocan,Shi Lei,et al.Solution blowing of submicron-scale cellulose fibers[J].Carbohyd Polym,2012,90(2):982-987.
[4]Ding Bin,Wang Xiaoru,Wang Xianfeng,et al.A preparation method of PMIA nanofibers web:CN,102704028[P].2012-10-03.
[5]Xiao Ke.Fabrication and application of PMIA-based nanofiber memberane as separators for lithiumion batteries[D].Shanghai:Donghua University,2016.
[6]He Suwen,Liu Liqi,Gao Baoshan,et al.Study on morphology and characterization of poly(mphenylene isophtalamide)/multiwalled carbon nanotubes composite nanofibers by electrospinning[J].J Nanosci Nanotech,2011,11(5):4 004-4 010.
[7]Wu Shiting,Huang Kai,Shi Enzheng,et al.Soluble polymerbased,blown bubble assembly of single-and double-layer nanowires with shape control[J].ACS Nano,2014,8(4):3 522-3 530.
[8]Shaffer M S P,Fan Xiujun,Windle A H.Dispersion and packing of carbon nanotubes[J].Carbon,1998,36(11):1 603-1 612.
[9]He Suwen.Analysis and verification on influencing factors of nanofiber morphology by electrospinning[D].Shanghai:Donghua University,2011.
[2]Zhang Lifeng,Kopperstad P,West M,et al.Generation of polymer ultrafine fibers through solution(air-)blowing[J].J Appl Polym Sci,2009,114(6):3 479-3 486.
[3]Zhuang Xupin,Yang Xiaocan,Shi Lei,et al.Solution blowing of submicron-scale cellulose fibers[J].Carbohyd Polym,2012,90(2):982-987.
[4]Ding Bin,Wang Xiaoru,Wang Xianfeng,et al.A preparation method of PMIA nanofibers web:CN,102704028[P].2012-10-03.
[5]Xiao Ke.Fabrication and application of PMIA-based nanofiber memberane as separators for lithiumion batteries[D].Shanghai:Donghua University,2016.
[6]He Suwen,Liu Liqi,Gao Baoshan,et al.Study on morphology and characterization of poly(mphenylene isophtalamide)/multiwalled carbon nanotubes composite nanofibers by electrospinning[J].J Nanosci Nanotech,2011,11(5):4 004-4 010.
[7]Wu Shiting,Huang Kai,Shi Enzheng,et al.Soluble polymerbased,blown bubble assembly of single-and double-layer nanowires with shape control[J].ACS Nano,2014,8(4):3 522-3 530.
[8]Shaffer M S P,Fan Xiujun,Windle A H.Dispersion and packing of carbon nanotubes[J].Carbon,1998,36(11):1 603-1 612.
[9]He Suwen.Analysis and verification on influencing factors of nanofiber morphology by electrospinning[D].Shanghai:Donghua University,2011.