具有高灵敏性且稳定可重复的正温度系数效应的PVDF/CF导电复合材料

邹会昭; 张习; 郑少笛; 杨伟; 刘正英; 杨鸣波; 冯建明

doi:10.11777/j.issn1000-3304.2017.17090

您当前的位置：

首页 >

文章列表页 >

具有高灵敏性且稳定可重复的正温度系数效应的PVDF/CF导电复合材料

快报 | 更新时间：2021-01-26

- 具有高灵敏性且稳定可重复的正温度系数效应的PVDF/CF导电复合材料
- PVDF/CF Conductive Composites with High Sensitivity and Stable Reproducibility of Positive Temperature Coefficient Effect
- 高分子学报 2017年第8期页码：1215-1219
- 作者机构：
  
  四川大学高分子科学与工程学院成都 610065
- 作者简介：
  
  刘正英, E-mail:liuzhying@scu.edu.cn Zheng-ying Liu, E-mail:liuzhying@scu.edu.cn
- 基金信息：
  
  国家自然科学基金(基金号21674069)
- DOI：10.11777/j.issn1000-3304.2017.17090
  中图分类号：
- 纸质出版日期：2017-8，
  
  收稿日期：2017-4-17，
  
  修回日期：2017-5-17，
扫描看全文
邹会昭, 张习, 郑少笛, 杨伟, 刘正英, 杨鸣波, 冯建明. 具有高灵敏性且稳定可重复的正温度系数效应的PVDF/CF导电复合材料[J]. 高分子学报, 2017,(8):1215-1219.

Zou Hui-zhao, Zhang Xi, Zheng Shao-di, Yang Wei, Liu Zheng-ying, Yang Ming-bo, Feng Jian-ming. PVDF/CF Conductive Composites with High Sensitivity and Stable Reproducibility of Positive Temperature Coefficient Effect[J]. Acta Polymerica Sinica, 2017,(8):1215-1219.
邹会昭, 张习, 郑少笛, 杨伟, 刘正英, 杨鸣波, 冯建明. 具有高灵敏性且稳定可重复的正温度系数效应的PVDF/CF导电复合材料[J]. 高分子学报, 2017,(8):1215-1219. DOI： 10.11777/j.issn1000-3304.2017.17090.

Zou Hui-zhao, Zhang Xi, Zheng Shao-di, Yang Wei, Liu Zheng-ying, Yang Ming-bo, Feng Jian-ming. PVDF/CF Conductive Composites with High Sensitivity and Stable Reproducibility of Positive Temperature Coefficient Effect[J]. Acta Polymerica Sinica, 2017,(8):1215-1219. DOI： 10.11777/j.issn1000-3304.2017.17090.

摘要

以碳纤维（CF）为填料，聚偏氟乙烯（PVDF）为基体，通过熔融共混法制备PVDF/CF导电复合材料.所得复合材料具有显著的正温度系数（PTC）效应，温度上升到聚合物熔点附近时，电阻率对温度变化敏感.在转折温度区间（155.5~171.0℃，

△

=15.5℃）内，其体积电阻率的增加速率约为1.3×10

Ω cm K

-1

.在不同CF含量下，复合材料表现出不同的PTC行为.随着CF含量的增加，其峰值电阻略有下降.高导电粒子含量下，无负温度系数（NTC）效应.在冷却循环过程，导电网络的重构性良好.复合材料即使经过多次热循环，依然表现出良好的PTC特性重现性.

Abstract

Application of polymer based composites with positive temperature coefficient (PTC) effect is greatly limited because of the drawbacks such as slow change of the resistivity in the transition temperature range

low PTC intensity

poor PTC reproducibility. In this work

the composite composed of polyvinylidene fluoride (PVDF) as matrix and carbon fiber (CF) as conductive filler was prepared by melt mixing to obtain high PTC intensity and stable reproducibility of PTC effect. The resulted PVDF/CF composites

with CF content from 13.1 vol% to 18.2 vol%

which was above the percolation threshold of 3.93 vol%

showed remarkable PTC effect without significant negative temperature coefficient (NTC) effect during heating processed. A fast transition from conductor to insulator was obtained when the temperature was close to the melting point of PVDF matrix

namely

the increase rate of volume resistivity was 1.3×10

Ω cm K

-1

in the transition temperature range (155.5-171.0℃). To our knowledge

this study is the first to report such phenomena in CF filled composites. The transition temperature ranges for all composites

determined by the melt temperature range and melting point of PVDF matrix

were almost the same owing to the presence of CF

and showed no effect on the crystallization behaviour of PVDF matrix. The room temperature resistivity and PTC intensity of composites with low CF content showed dependences on the thermal-cooling cycles

but they showed almost the same pattern and PTC intensity for the composites with high CF content. Desired reconstruction of CF network in the PVDF melt during cooling process and the excellent PTC reproducibility were observed even after 9 thermal-cooling cycles.

关键词

聚偏氟乙烯碳纤维导电复合材料正温度系数效应转折温度区间

Keywords

PVDFCarbon fiberConductive compositePositive temperature coefficient effectTransition temperature range

references

R Zhang , P Tang , J Li , D Xu , Y Bin . . Polymer , 2014 . 55 ( 8 ): 2103 - 2112 . DOI:10.1016/j.polymer.2014.02.065http://doi.org/10.1016/j.polymer.2014.02.065.

J Feng , C M Chan . . Polymer , 2000 . 41 7279 - 7282 . DOI:10.1016/S0032-3861(00)00095-1http://doi.org/10.1016/S0032-3861(00)00095-1.

C Zhang , C A Ma , P Wang , M Sumita . . Carbon , 2005 . 43 ( 12 ): 2544 - 2553 . DOI:10.1016/j.carbon.2005.05.006http://doi.org/10.1016/j.carbon.2005.05.006.

H P Xu , Z M Dang , M J Jiang , S H Yao , J Bai . . J Mater Chem , 2008 . 18 ( 2 ): 229 - 234 . DOI:10.1039/B713857Ahttp://doi.org/10.1039/B713857A.

H P Xu , Z M Dang , D H Shi , J B Bai . . J Mater Chem , 2008 . 18 ( 23 ): 2685 - 2690 . DOI:10.1039/b717591dhttp://doi.org/10.1039/b717591d.

Z Yu Zhao , W He , X X Chen . . Mater Lett , 2003 . 57 ( 20 ): 3082 - 3088 . DOI:10.1016/S0167-577X(02)01440-4http://doi.org/10.1016/S0167-577X(02)01440-4.

H Nakano , K Shimizu , S Takahashi , A Kono , T Ougizawa , H Horibe . . Polymer , 2012 . 53 ( 26 ): 6112 - 6117 . DOI:10.1016/j.polymer.2012.10.046http://doi.org/10.1016/j.polymer.2012.10.046.

H P Xu , Z M Dang . . Chem Phys Lett , 2007 . 438 ( 4-6 ): 196 - 202 . DOI:10.1016/j.cplett.2007.02.076http://doi.org/10.1016/j.cplett.2007.02.076.

H P Xu , Z M Dang , N C Bing , Y H Wu , D D Yang . . J Appl Phys , 2010 . 107 ( 3 ): 034105 DOI:10.1063/1.3289731http://doi.org/10.1063/1.3289731.

S L Jiang , Y Yu , J J Xie , L P Wang , Y K Zeng , M Fu , T Li . . J Appl Polym Sci , 2009 . 116 838 - 842.

K Prashantha , J H Lee . . J Macromol Sci A , 2011 . 48 ( 9 ): 737 - 741 . DOI:10.1080/10601325.2011.596056http://doi.org/10.1080/10601325.2011.596056.

K Y Tsao , C S Tsai , C Y Huang . . Surf Coat Technol , 2010 . 205 S279 - S285 . DOI:10.1016/j.surfcoat.2010.08.005http://doi.org/10.1016/j.surfcoat.2010.08.005.

J W Zha , W K Li , R J Liao , J Bai , Z M Dang . . J Mater Chem A , 2013 . 1 ( 3 ): 843 - 851 . DOI:10.1039/C2TA00429Ahttp://doi.org/10.1039/C2TA00429A.

KonoA , K Shimizu , H Nakano , GotoY , Y Kobayashi , T Ougizawa , H Horibe . . Polymer , 2012 . 53 ( 8 ): 1760 - 1764 . DOI:10.1016/j.polymer.2012.02.048http://doi.org/10.1016/j.polymer.2012.02.048.

L Qi , Siddaramaiah , H K Nam , Y Gye-Hyoung , H L Q Joong . . Composites Part B , 2009 . 40 ( 3 ): 218 - 224 . DOI:10.1016/j.compositesb.2008.11.002http://doi.org/10.1016/j.compositesb.2008.11.002.

L Shen , F Q Wang , H Yang , Q R Meng . . Polym Test , 2011 . 30 ( 4 ): 442 - 448 . DOI:10.1016/j.polymertesting.2011.03.007http://doi.org/10.1016/j.polymertesting.2011.03.007.

C Zhang , C A Ma , P Wang , M Sumita . . Carbon , 2005 . 43 ( 12 ): 2544 - 2553 . DOI:10.1016/j.carbon.2005.05.006http://doi.org/10.1016/j.carbon.2005.05.006.

更多指标>

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

高性能MWCNTs-OH修饰聚偏氟乙烯中空纤维超滤膜的制备

PAN基碳纤维形成过程中热氧稳定化气氛对纤维径向结构演变的关联性研究

连续纤维增强含二氮杂萘酮联苯结构聚芳醚砜酮树脂基复合材料的界面