沈锂鸣,高绪珊,童俨,李瑞霞,吴大诚
SHEN Li-ming1,TONG Yan2,GAO Xu-shan2,LI Rui-xia1,Wu Da-cheng1(1.Textile College Sichuan University

• 1:四川大学纺织研究所
• 2:北京服装学院
• 3:北京服装学院
• 4:四川大学纺织研究所

摘要(Abstract)：

选择体积含量为70%的三氟乙酸(TFA)与30%二氯甲烷(DCM)作为混合溶剂,采用溶液法可制得用于增强聚对苯二甲酸乙二酯(PET)纤维的PET/多壁碳纳米管(MWCT)混合母粒。扫描电镜(SEM)观察发现MWCT在母粒内分散良好。将PET/MWCT母粒与纯PET切片熔融纺丝,制备出了力学性能明显增强的纤维。在实验的最佳纺丝条件下,MWCT质量含量为0.04%时,纤维断裂强度可达到5.25cN/dtex、初始模量达到119.7cN/dtex,分别比相同条件下的纯PET纤维提高21.0%和37.6%。
Polyethylene terephthalate(PET) fibers was reinforced by masterbatch of multi-wall carbon nanotubes(MWCT).The masterbatch was made by solution of 70 % trifluoroacetic acid(TFA) and 30 % dichloromethane(DCM).The observation of the masterbatch by scanning electron microscope(SEM) showed that MWCT was well dispersed in PET.The reinforced fibers were fabricated by the melt spinning of PET chips with some amount of the masterbatch.The mechanical properties of fibers was increased obviously.When the content of MWCT was 0.04 %,for the reinforced fibers breaking strength was 5.25 cN/dtex and the initial modulus was 119.7 cN/dtex,which were much higher than corresponding data for the neat PET fibers.

关键词(KeyWords)： 多壁碳纳米管;聚对苯二甲酸乙二酯;纤维;力学性能
multi-wall carbon nanotube,polyethylene terephthalate,fiber,mechanical property

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50473050)

作者(Author): 沈锂鸣,高绪珊,童俨,李瑞霞,吴大诚
SHEN Li-ming1,TONG Yan2,GAO Xu-shan2,LI Rui-xia1,Wu Da-cheng1(1.Textile College Sichuan University

参考文献(References)：

• [1]Jacob C Kearns,Robert L S.Polypropylene fibers reinforced with carbon nanotubes[J].J App Polym Sci,2002,86:2079-2084.
• [2]Kevin P R,Stephen M Lipson,Anna D,et al.Carbon-nanotube nucleated crystallinity in a conjugated polymer based composite[J].Chem Phys Lett,2004,391:329-333.
• [3]R Haggenmueller,H H Gommans,A G Rinzler,et al.Aligned single-wall carbon nanotubes in composites by melt processing methods[J].Chem Phys Lett,2000,330:219-225.
• [4]Brendan M,Alan B D,Jonathan N C,et al.Spectroscopic investigation of conjugated polymer/single-walled carbon nanotube interactions[J].Chem Phys Lett,2001,350:27-32.
• [5]A B Dalton,W J Blau,G Chambers,et al.A functional conjugated polymer to process,purify and selectively interact with single wall carbon nanotubes[J].Synthetic Metals,2001,121:1217-1218.
• [6]Bin Y Z,Kitanaka M,Zhu D,et al.Development of highly oriented polyethylene filled with aligned carbon nanotubes by gelation/crystalliza-tion from solutions[J].Macromolecules,2003,36:6213.
• [7]Lin Y,Zhou B,Shiral Fernando,et al.Polymeric carbon nanocompos-ites from carbon nanotubes functionalized with matrix polymer[J].Macro-molecules,2003,36:7199.
• [8]B Mc Carthy,J N Coleman,R Czerw,et al.Microscopy studies of nanotube-conjugated polymer interactions[J].Synthetic Metals,2001,121:1225-1226.
• [9]杨军平,高绪珊,童俨.碳纳米管增强PA6纤维的性能[J].材料研究学报,2004,18(5):556-560.
• [10]J K W Sandler,S Pegela,M Cadek,et al.A comparative study of melt spun polyamide-12fibres reinforced with carbon nanotubes and nanofibres[J].Polymer,2004,45:2001-2015.
• [11]Emilie J S,Dennis C Working,Cheol Parkb,et al.Melt processing of SWCNT-polyimide nanocomposite fibers[J].Composites:Part B,2004,35:439-446.
• [12]王依民,王新鹏.碳纳米管对超高分子质量聚乙烯纤维结构与性能的影响[J].金山油化纤,2005,24(1):1-7.
• [13]陈艳.PAN/MWNTs纤维的结构与性能的研究[J].合成纤维工业,2006,29(6):30-31.
• [14]李宏伟,高绪珊,童俨.聚丙烯/多壁碳纳米管复合材料的结晶行为[J].中国塑料,2005,19(4):23-28.
• [15]章潭莉,谢丽,胡学超等.超高分子量PET的纺丝溶液制备及研究[J].中国纺织大学学报,1996,22(1):44-48.
• [16]宋丽贞,胡学超.超高分子量PET溶解中的降解[J].合成纤维,1997,26(6):5-9.
• [17]Gang Wu,John A Cuculo.Preparation of high performance PET fiber by solution spinning technique[J].Journal of Applied Polymer Science,1995,56:869-875.
• [18]Fisher F T,Bradshaw R D,Brinson L C.Effects of nanotube wavi-ness on the modulus of nanotube-reinforced polymers[J].Applied Physics Letters,2002,80:4647-4679.
• [19]Fisher F T,Bradshaw R D,Brinson L C.Fiber waviness in nanotu-bereinforced polymer composites-I:modulus predictions using effective nanotube properties[J].Comp Sci Tech,2003,63:1689-1691.