有机改性高岭土聚二甲基苯胺复合物的制备及性能研究.docVIP

重庆大学本科学毕业设计（论文）生 学 生： 学 号： 指导教师： 教授 专 业：化学工程与工艺 重庆大学化学化工学院  Graduation Design (Thesis) of Chongqing University Study on the preparation and properties of Organo-Kaolinite/Poly(2,3-dimethylaniline) Undergraduate:----------- Supervisor: Prof. ----------- Major: Chemical Engineering and Technology College of Chemistry and Chemical Engineering of Chongqing University ------------------- 摘 要 聚苯胺（PANI）作为新一代结构导电高分子，在金属防腐领域的应用备受关注。但由于刚性强，溶解性差，应用造成。聚苯胺衍生物的提出解决聚苯胺的可溶性和可加工性能2,3-二甲基苯胺(2,3-DMA)作为苯胺(An)主要的衍生物之一，在，在一定程度上克服了其加工性差的缺点。高岭土作为功能型的添加剂，化学惰性，高覆盖力，理想的流动性和悬浮性成本低，使得它在涂料油漆工业方面应用非常广泛。本文以硅烷偶联剂为改性试剂对高岭土()进行表面改性，有机改性高岭土。以2,3-二甲基苯胺(2,3-DMA)为单体，磷酸掺杂，过硫酸铵(APS)引发剂，采用制备有机改性高岭土/P(2,3-DMA)复合材料以为，聚乙烯醇(PVA)为成膜物质，利用开路电位、Tafel极化曲线研究涂层的耐腐蚀性能。实验结果表明：硅烷偶联剂，当引发剂(APS)与单体(2,3-DMA)的摩尔比为2:1，有机改性高岭土为5%，反应温度为30，反应时间为时，复合物的各项性能最优。与PVA涂层相比，P(2，3-DMA)/PVA涂层腐蚀电位较高，腐蚀电流较低，与P(2,3-DMA)/PVA涂层相比， 关键词：聚2,3二甲基苯胺，高岭土，表面改性，防腐  ABSTRACT environmental stability,optical and reversible redox as well electrical properties.Currently,it has been widely used in basic materials,such as corrosion-protecting coating.Howerve,the solubility of PANI need further improvement due to its rigidity of PANI backbone chain and high steric hindrance between the molecular chains which has restricted its large-scale applications.2,3-DMA is one of the derivatives of aniline,it has been reported that poly(2,3-DMA) has good solubility and corrosion-protecting performance.So ,it has a interesting potential of commercial application in the field of metallic protection. Kaolinite, as a functional additive, because of its chemical inertness, high covering power, the desired flow and suspension, low cost, has a widely application in the paints and coatings industry.In this paper, we attempt to prepare and explore the performance of Organo-kaolinite/Poly(2,3-dimeythylaniline) composite materials. In this paper,Kaolinite was successfully modified with silane coupling agent.And then OKL was added into the polymerization system of