在聚四氟乙烯(PTFE)微孔膜上电化学制备硫酸和磺基水杨酸(SSA)共掺杂的导电聚苯胺(PANI)复合膜,采用四因素三水平的正交设计法优化工艺条件,并在其上继续沉积银,研究了沉积银电流密度和时间及拉伸对复合膜电导率的影响.采用拉曼光谱、X射线衍射和扫描电镜对复合膜进行了表征.结果表明,在最佳工艺条件下制备的PTFE-PANI复合膜电导率可达36.9S/cm,此复合膜经20mA/cm2沉积4min的银可使其电导率显著提高到5379S/cm.对最优条件制备的PANI-PTFE和PANI-PTFE-Ag复合膜进行适当程度的拉伸均可提高其电导率,PT-FE系列复合膜展现出较优异的力学性能.拉曼光谱表明PTFE、PANI和银复合良好.复合膜有一定的结晶度,经拉伸后复合膜结晶度增大,电导率显著提高；PANI在PTFE上呈颗粒状生长,颗粒尺寸均匀,直径约为200nm,Ag呈树枝状镶嵌、覆盖在PANI颗粒间,与PANI复合很好并形成三维导电网络.
参考文献
| [1] | Li J;Fang K;Qiu H et al.Micromorphology and electrical property of the HC1 doped and DBSA doped polyaniline[J].Synthetic Metals,2004,142(1-3):107. |
| [2] | Koul S;Dhawan S K;Chandra R .Compensated sulphnated polyaniline correlation of processibility and crytalline structure[J].Synthetic Metals,2001,124(2-3):295. |
| [3] | Cvetko F;Brangs B;Burford R P .Structure,strength and electrical performance of conducting polypyrroles[J].Journal of Materials Science,1988,23(06):95. |
| [4] | Rosseel M T;Vandewoude K H .Liquid chromatographic determination of the plasma concent rations of cefotaxime and desacetylcefotaximein plasma of criticallyill patients[J].Journal of Chromatography B:Biomedical Applications,2004,811(02):159. |
| [5] | Eric-Jovanovic S;Agbaba D;Zivanov-Stakic D;Vladimirov S .HPTLC determination of ceftriaxone, cefixime and cefotaxime in dosage forms.[J].Journal of Pharmaceutical and Biomedical Analysis: An International Journal on All Drug-Related Topics in Pharmaceutical, Biomedical and Clinical Analysis,1998(4/5):893-898. |
| [6] | Kitamura T.;Tanigaki M.;Kurumada K.;Ohshima M.;Kanazawa S.;Okabe S. .Morphology change in polytetrafluoroethylene (PTFE) porous membrane caused by heat treatment[J].Polymer engineering and science,2000(3):809-817. |
| [7] | 邓姝皓,易丹青,刘娟,郑康丽.硫酸掺杂导电聚苯胺正极材料的电化学制备及性能[J].电池,2007(03):208-211. |
| [8] | 沈玉萍,孙建中,吴剑刚,周其云.酶催化水溶性导电聚苯胺的模板导向合成与表征[J].高校化学工程学报,2006(03):407-411. |
| [9] | 栾华丽,朱国辉,晋传贵,万玉保.掺杂工艺对聚苯胺导电性的影响[J].安徽工业大学学报（自然科学版）,2008(04):371-374. |
| [10] | 刘站华,庄勤亮.聚苯胺/氨纶复合导电织物在应力作用下的信号响应及稳定性[J].东华大学学报（自然科学版）,2006(02):119-123. |
| [11] | 刘晨,陈凤恩,张家鑫,石高全.显微共焦拉曼光谱研究电化学合成聚苯胺膜[J].物理化学学报,2003(09):810-814. |
| [12] | Badr Y;Mahmoud MA .Effect of silver nanowires on the surface-enhanced Raman spectra (SERS) of the RNA bases[J].Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy,2006(3):639-645. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%