聚(吡咯/二苯胺磺酸)/石墨烯复合材料的制备及其抗静电性能研究  

Preparation and Antistatic Property of Poly( pyrrole/4-sulfonic diphenylamine) / Graphene Composite

作　　者：尹正烨 马江权[1] 陈坤[1] 姚超[1] 殷云武 薛宝安 

机构地区：[1]江苏省先进催化与绿色制造协同创新中心,常州大学,江苏常州213164 [2]江苏超跃化学有限公司,江苏镇江212310

出　　处：《精细化工》2016年第7期747-752,共6页Fine Chemicals

基　　金：镇江市工业支撑项目(GY2014037);常州市科技支撑计划(CE20140077)~~

摘　　要：采用化学氧化聚合法,以石墨烯(RGO)为掺杂剂,吡咯(Py)和二苯胺磺酸(SD)共聚制备导电复合材料。通过正交实验和分散性实验确定最佳合成条件为:以Fe Cl3·6H2O为氧化剂,n(氧化剂)∶n(单体)=1∶1,n(Py)∶n(SD)=7∶3(总量为0.01 mol),m(RGO)=0.05 g;在此条件下制备的复合材料电导率为12.05 S/cm,且具有良好的水分散性。用傅里叶变换红外(FTIR)光谱和X射线衍射(XRD)对其结构进行了表征,并使用热重分析仪(TGA)对复合材料的热稳定性进行了测试。结果表明,SD结构单元成功嵌入聚吡咯(PPy)的分子链中,RGO的掺杂使复合材料电导率和热稳定性都有了明显提升。将复合材料作为导电填料加入到水性聚氨酯中,考察了涂层的抗静电性能和机械性能,在添加量为4%时,涂层的综合性能较好,涂层表面电阻率可达8.65×107Ω。Conductive composites were prepared from pyrrole（ Py） and 4-sulfonic diphenylamine（ SD）by chemico-oxidative method using graphene（ RGO） as a dopant. Through orthogonal test and dispersive test,the best synthesis conditions of the composites were as follows： the oxidant is Fe Cl3·6H2O,the mole ratio of oxidant and monomer is 1∶1,the mole ratio of Py and SD is 7∶3（ total amount is 0. 01 mol）,the doping amount of RGO is 0. 05 g; Under the above conditions,the prepared composite had a conductivity of 12. 05 S / cm and acquired a good water dispersion. The structures and thermal stability of the composites were characterized by Fourier transform infrared spectroscopy（ FTIR）,X-ray diffraction（ XRD） and thermal gravimetric analyzer（ TGA）. Results showed that the structure unit of SD was successfully embedded in the molecular chain of the polypyrrole（ PPy）,the conductivity and thermal stability of the composites improved significantly after the doping of RGO. Meanwhile,the antistatic and mechanical properties of the coating were investigated when the composite was added as a conductive filler to the waterborne polyurethane. The coating possesses a better comprehensive performance and achieve a surface resistivity of 8. 65 × 10^7Ω when the additive amount of the composite is 4%.

关 键 词：吡咯 二苯胺磺酸 石墨烯 化学氧化法 水性聚氨酯 抗静电性 功能材料 

分 类 号：TB332[一般工业技术—材料科学与工程]