Please wait a minute...
 
材料工程  2020, Vol. 48 Issue (6): 106-111    DOI: 10.11868/j.issn.1001-4381.2019.000993
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
拉伸处理对碳纳米纤维/聚偏氟乙烯复合材料结晶行为和AC导电性能的影响
孙莉莉, 吴南, 彭睿
中国航发北京航空材料研究院, 北京 100095
Effect of stretching process on crystalline structures and alternating current conductivity of CNF/PVDF composites
SUN Li-li, WU Nan, PENG Rui
AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
全文: PDF(2663 KB)   HTML()
输出: BibTeX | EndNote (RIS)      
摘要 采用溶液浇铸法制备1%(质量分数,下同)~5%的碳纳米纤维/聚偏氟乙烯(CNF/PVDF)复合材料,并对CNF/PVDF复合材料进行拉伸处理。研究拉伸处理对复合材料的结晶行为以及AC导电率的影响。结果表明:拉伸处理对PVDF的结晶结构有显著影响,使PVDF的α晶型有效地转变为β晶型,同时也会降低PVDF的结晶度。另一方面,拉伸处理会改变CNF在PVDF基体中的分布状态,降低复合材料的AC导电率,使其逾渗阈值由1%提高至3%~5%之间。
服务
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章
孙莉莉
吴南
彭睿
关键词 碳纳米纤维聚偏氟乙烯拉伸处理结晶行为AC导电率    
Abstract:Carbon nanofiber (CNF)/poly (vinylidene fluoride) (PVDF) composites with different CNF concentrations from 1% (mass fraction, the same as below) to 5% were prepared into thin films via solution casting method firstly, followed by the stretching process. The effect of stretching process on the crystallization and alternating current (AC) conductivity of CNF/PVDF composites was discussed. The results reveal that the phase transformation from α- to β-crystal PVDF can be effectively induced by stretching process. Simultaneously, the crystallinity is decreased. On the other hand, CNFs in PVDF are re-oriented and the AC conductivity of CNF/PVDF composites is decreased, the percolation threshold of which is raised from 1% to a value between 3% and 5%.
Key wordsCNF    PVDF    stretching    crystallization    AC conductivity
收稿日期: 2019-11-01      出版日期: 2020-06-15
中图分类号:  TQ325.12  
通讯作者: 孙莉莉(1983-),性别:女,工程师,博士,研究方向为高分子与复合材料,联系地址:北京市81信箱83分箱(100095), sunlili_@163.com     E-mail: sunlili_@163.com
引用本文:   
孙莉莉, 吴南, 彭睿. 拉伸处理对碳纳米纤维/聚偏氟乙烯复合材料结晶行为和AC导电性能的影响[J]. 材料工程, 2020, 48(6): 106-111.
SUN Li-li, WU Nan, PENG Rui. Effect of stretching process on crystalline structures and alternating current conductivity of CNF/PVDF composites. Journal of Materials Engineering, 2020, 48(6): 106-111.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2019.000993      或      http://jme.biam.ac.cn/CN/Y2020/V48/I6/106
[1] 张军英,李新开,王清海,等.聚偏氟乙烯的晶体结构及应用[J].工程塑料应用,2008,36 (12):79-81. ZHANG J Y,LI X K,WANG Q H,et al. Crystal phase structure and application of poly (vinylidene fluoride) [J]. Engineering Plastics Application,2008,36 (12):79-81.
[2] 顾明浩,张军,王晓琳.聚偏氟乙烯的晶体结构[J]. 高分子通报,2006(7):82-87. GU M H,ZHANG J,WANG X L.Crystal structure of poly (vinylidene fluoride) [J].Chinese Polymer Bulletin,2006(7):82-87.
[3] 冯玉军,井晓天,楼秉哲.聚偏氟乙烯薄膜拉伸相变的研究[J]. 材料工程,1999(7):18-20. FENG Y J,JING X T,LOU B Z.The research for the phase transition of stretching polyvinylidene fluoride film[J].Journal of Materials Engineering,1999(7):18-20.
[4] 张建芹,张军英,刘爱云,等.拉伸工艺对聚偏氟乙烯薄膜结晶特性的影响[J]. 化工新型材料,2012,40 (3):141-143. ZHANG J Q,ZHANG J Y,LIU A Y,et al.Effect of stretching technology on crystalline characteristic of PVDF thin films[J].New Chemical Materials,2012,40 (3):141-143.
[5] 王金龙,王文一,史菁元,等.多壁碳纳米管/聚偏氟乙烯高介电常数复合材料的制备与性能[J]. 复合材料学报,2015,32 (5):1355-1360. WANG J L,WANG W Y,SHI J Y,et al.Preparation and properties of multi-walled carbon nanotubes/ poly(vinylidene fluoride) high dielectric constant composites[J]. Acta Materiae Compositae Sinica,2015,32 (5):1355-1360.
[6] 罗璐,李小瑞,王海花,等.羟基化碳纳米管/聚偏氟乙烯介电复合材料的制备与性能[J]. 功能材料, 2018,49 (2): 02103-02112. LUO L,LI X R,WANG H H,et al.Preparation and properties of carboxylated carbon nanotubes/poly(vinylidene fluoride) dielectric composites[J].Journal of Functional Materials,2018,49 (2):02103-02112.
[7] COSTA P,SILVA J,SENCADAS V,et al.The effect of fibre concentration on the α to β-phase transformation,degree of crystallinity and electrical properties of vapour grown carbon nanofibre/poly(vinylidene fluoride) composites[J].Carbon,2009,47:2590-2599.
[8] PATRO T U,MHALGI M V,KHAKHAR D V,et al.Studies on poly(vinylidene fluoride)-clay nanocomposites:effect of different clay modifiers[J].Polymer,2008,49:3486-3499.
[9] HUANG X Y,JIANG P K,KIM C,et al.Influence of aspect ratio of carbon nanotubes on crystalline phases and dielectric properties of poly(vinylidene fluoride)[J].European Polymer Journal,2009,45 (2):377-386.
[10] LANCEROS-MÉNDEZ S,MANO J F,COSTA A M,et al.FTIR and DSC studies of mechanically deformed β-PVDF films[J].Journal of Macromolecular Science-Physics,2001,40:517-527.
[11] YU S,ZHENG W,YU W,et al.Formation mechanism of β-phase in PVDF/CNT composite prepared by the sonication method[J].Macromolecules,2009,42 (22):8870-8874.
[12] BUCKLEY J,CEBE P,CHERDACK D,et al.Nanocomposites of poly(vinylidene fluoride) with organically modified silicate[J].Polymer,2006,47 (7):2411-2422.
[13] PRIYA L,JOG J P.Polymorphism in intercalated poly(vinylidene fluoride)/clay nanocomposites[J].Journal of Applied Polymer Science,2003,89:2036-2040.
[14] SALIMI A,YOUSEFI A A.Analysis method:FTIR studies of β-phase crystal formation in stretched PVDF films[J].Polymer Testing,2003,22:699-704.
[15] HSU T C,GEIL P H.Deformation and transformation mechanisms of poly(vinylidene fluoride) (PVF2)[J].Journal of Materials Science,1989,24 (4):1219-1232.
[16] PENG Q Y,CONG P H,LIU X J,et al The preparation of PVDF/clay nanocomposites and the investigation of their tribological properties[J]. Wear, 2009, 266: 713-720.
[17] LI Q,XUE Q Z,ZHENG Q B,et al.Large dielectric constant of the chemically purified carbon nanotube/polymer composites[J].Materials Letters,2008,62:4229-4231.
[18] AL-SALEH M H,SUNDARARAJ U.A review of vapor grown carbon nanofiber/polymer conductive composites[J].Carbon,2009,47:2-22.
[19] XU H P,DANG Z M.Electrical property and microstructure analysis of poly(vinylidene fluoride)-based composites with different conducting fillers[J].Chemical Physics Letters,2007,438:196-202.
[1] 巩桂芬, 徐阿文, 邹明贵, 邢韵, 辛浩. EVOH-SO3Li/P(VDF-HFP)/HAP锂离子电池隔膜的制备及电化学性能[J]. 材料工程, 2020, 48(5): 75-82.
[2] 张飒, 王建江, 赵芳, 刘嘉玮. 电纺Co掺杂碳纳米纤维的制备及其吸波性能[J]. 材料工程, 2019, 47(12): 118-123.
[3] 邹海强, 杨隽逸, 郑玉婴, 陈健, 卢秀恋. 液相共沉淀法制备MnO2/CNFs催化剂及其低温脱硝性能[J]. 材料工程, 2018, 46(9): 53-58.
[4] 冯倩倩, 申向, 何洋, 赵义平, 颜范勇, 陈莉. 交联剂对PVDF-g-PACMO共聚物膜抗污染性的影响[J]. 材料工程, 2017, 45(7): 34-40.
[5] 何跃, 蒋团辉, 刘阳夫, 龚维, 何力. 橡胶粒子对微发泡聚丙烯复合材料发泡行为与力学性能的影响[J]. 材料工程, 2017, 45(2): 80-87.
[6] 孙莉莉, 钟艳莉. 碳纳米纤维/高密度聚乙烯复合材料结晶行为和介电性能的研究[J]. 材料工程, 2013, 0(4): 17-22.
[7] 冯玉军, 井晓天, 楼秉哲, 戚晓芳. 聚偏氟乙烯薄膜拉伸相变的研究[J]. 材料工程, 1999, 0(7): 18-31.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
版权所有 © 2015《材料工程》编辑部
地址:北京81信箱44分箱 邮政编码: 100095
电话:010-62496276 E-mail:matereng@biam.ac.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn