聚吡咯/凹凸棒石纳米导电复合材料的制备和表征  

Preparation and Characterization of Polypyrrole/Attapulgite Conductive Nanocomposite

作　　者：李恒[1] 姚超[1] 吴凤芹[1] 丁永红[1] 李峰[2] 徐斌海[3] 

机构地区：[1]常州大学石油化工学院,江苏常州213164 [2]江苏省凹土工程技术研究中心,江苏盱眙211700 [3]江苏河海纳米科技股份有限公司,江苏泰兴225401

出　　处：《非金属矿》2011年第2期5-7,10,共4页Non-Metallic Mines

基　　金：江苏省高校自然科学研究重大项目(09KJA430002);江苏省自然科学基金(BK2009748);江苏省科技支撑计划(BE2009099);2010年度高校科研成果产业化推进工程(JH10-53);江苏省产学研前瞻性联合研究项目(BY2010123);江苏省科技型企业创新资金(BC2010149)

摘　　要：通过正交实验确定了聚吡咯/凹凸棒石(PPy/ATP)纳米导电复合材料的最佳制备工艺条件。结果表明:当吡咯(Py)用量为m(Py):m(ATP)=0.32,过硫酸铵(APS)与Py的摩尔比为1.1,十二烷基磺酸钠(DSNa)与Py的摩尔比为0.27,15℃下反应2h得到的复合材料体积电阻率可达26Ω·cm。通过热重-热差分析、X射线衍射(XRD)、红外光谱(FT-IR)、TEM对纳米复合材料进行表征。测试表明:聚吡咯/凹凸棒石纳米复合材料的耐热性能与纯聚吡咯相比明显提高,聚吡咯以非晶态形式包覆在凹凸棒石单晶的表面,它们之间没有新键生成,存在的是物理作用。The optimum preparative conditions of Polypyrrole/Attapulgite（PPy/ATP） conductive nanocomposite were determined through orthogonal experiments.The results showed that the volume resistivity of the nanocomposite could reach 26 Ω·cm when the dosage of pyrrole（Py） was the mass ratio of Py to ATP was 0.32,the polymerization temperature was 15℃,the polymerization time was 2 h,the mole ratio of APS to pyrrole was 1.1 and the mole ratio of DSNa to pyrrole was 0.27.And the nanocomposite was characterized by thermogravimetric-differential thermal analysis,X-ray diffraction（XRD）,Fourier transform infrared（FT-IR） and TEM.Tests showed that the heat-resistant of Polypyrrole/Attapulgite nanocomposite conductive materials were improved compared with the pure polypyrrole.Polypyrrole wraps on the surface of attapulgite single crystal with amorphous form.It was inferred that the physical interaction existed between polypyrrole and attapulgite.

关 键 词：聚吡咯 凹凸棒石 纳米复合材料 体积电阻率 

分 类 号：TB332[一般工业技术—材料科学与工程] TD985[矿业工程—选矿]