聚醚砜抗静电防腐涂料的制备及性能研究

发布时间：2018-05-27 22:07

本文选题：聚醚砜 + 聚四氟乙烯　；参考：《吉林大学》2015年硕士论文

【摘要】：近些年来，随着石油化工产业的快速发展，石油储罐和运输管道用量不断加大，储罐和管道因腐蚀导致油品泄露以及石油在储存和运输过程中产生的静电荷引起的爆炸或火灾等事故频有发生，因此研发出兼具导静电和防腐功能的涂料为解决以上问题提供了新途径。本文选取具有机械性能好、耐腐蚀性强、抗蠕变性能佳的聚醚砜树脂和摩擦系数小、化学稳定性高、不粘性好的聚四氟乙烯树脂作为涂层的基体树脂，，探索了添加不同碳系导电填料、不同方法处理的碳纳米管复合导电填料、不同含量聚四氟乙烯树脂、不同含量玻璃鳞片和不同含量三聚磷酸铝对聚醚砜-聚四氟乙烯涂料性能的影响，通过不断的筛选和深入的研究，最终成功制备了具有优异性能的抗静电防腐涂料。 1.制备了不同含量碳纳米管、石墨、炭黑、碳纤维四种碳系导电填料的聚醚砜-聚四氟乙烯涂层，分别探索了不同含量的四种导电填料对涂层性能的影响，并优化出四种抗静电涂层的最佳导电填料含量；通过对比这四种涂层性能，从中选出综合性能最好的碳纳米管/聚醚砜-聚四氟乙烯涂层进行下一步研究。 2.由于碳纳米管的独特结构，导致其容易发生团聚，很难在树脂中较好的分散，影响涂层的性能。为此，我们选用不同方法处理后的可分散性碳纳米管导电填料、碳纳米管钛白导电复合填料、碳纳米管云母导电复合填料制备了三种抗静电涂层，并研究不同含量的三种碳纳米管对涂层性能的影响，优化出三种抗静电涂层的最佳碳纳米管含量；对比这三种涂层性能，从中选出综合性能最好的可分散性碳纳米管/聚醚砜-聚四氟乙烯涂层进行下一步研究。 3.为了进一步研究聚四氟乙烯树脂对可分散性碳纳米管/聚醚砜-聚四氟乙烯涂层的性能影响，分别制备了不同含量聚四氟乙烯的可分散性碳纳米管/聚醚砜涂层，发现聚醚砜树脂：聚四氟乙烯树脂=8:3（质量比）的涂层综合性能最好。 4.为了进一步增强可分散性碳纳米管/聚醚砜-聚四氟乙烯抗静电涂层（聚醚砜树脂：聚四氟乙烯树脂=8:3）的防腐性能，分别向该涂料中加入不同含量玻璃鳞片和三聚磷酸铝防腐填料，制备了两种可分散性碳纳米管/聚醚砜-聚四氟乙烯抗静电防腐涂层，发现玻璃鳞片含量为10%和三聚磷酸铝含量为20%的这两种涂层综合性能最好，涂层抗静电性好，机械性能强，附着力0级，接触角在110°左右，热稳定性好，可耐盐雾720h以上。
[Abstract]:In recent years, with the rapid development of petrochemical industry, the consumption of oil storage tanks and transportation pipelines has been increasing. Accidents such as oil leaks caused by corrosion in storage tanks and pipelines and explosions or fires caused by static charges generated during storage and transportation occur frequently. Therefore, it provides a new way to solve the above problems by developing a coating with both electrostatic conductivity and anticorrosion function. In this paper, polyethersulfone resin with good mechanical properties, corrosion resistance and creep resistance is chosen as the base resin of the coating, which has low friction coefficient, high chemical stability and good non-viscosity. The carbon nanotube composite conductive filler with different carbon series conductive filler and different content of polytetrafluoroethylene resin was explored. The effects of different contents of glass scales and aluminum tripolyphosphate on the properties of polyethersulfone-PTFE coatings were studied and the antistatic anticorrosive coatings with excellent properties were successfully prepared by continuous screening and further study. 1. Polyethersulfone polytetrafluoroethylene (PTFE) coatings with different contents of carbon nanotubes, graphite, carbon black and carbon fiber were prepared. The best conductive filler content of the four antistatic coatings was optimized and the best carbon nanotube / polyethersulfone PTFE coating was selected for further study by comparing the properties of the four coatings. 2. Because of the unique structure of carbon nanotubes, it is easy to be agglomerated, and it is difficult to disperse in the resin, which affects the properties of the coating. For this reason, three kinds of antistatic coatings were prepared by different methods, such as dispersible carbon nanotube conductive filler, carbon nanotube titanium dioxide conductive composite filler and carbon nanotube mica conductive composite filler. The effects of three kinds of carbon nanotubes with different contents on the properties of the coatings were studied to optimize the optimum content of the three kinds of antistatic coatings. The best dispersible carbon nanotubes / polyethersulfone-PTFE coatings were selected for further study. 3. In order to further study the effect of PTFE resin on the properties of dispersible carbon nanotubes / polyethersulfone-polytetrafluoroethylene coatings, the dispersible carbon nanotubes / polyethersulfone coatings with different content of PTFE were prepared. It was found that the polyethersulfone resin: PTFE resin 8: 3 (mass ratio) had the best comprehensive properties. 4. In order to further enhance the anticorrosive properties of dispersible carbon nanotubes / polyethersulfone-polytetrafluoroethylene antistatic coatings (polyethersulfone resin: polytetrafluoroethylene resin / 8: 3), Two kinds of dispersible carbon nanotubes / polyethersulfone-polytetrafluoroethylene antistatic anticorrosive coatings were prepared by adding different contents of glass scales and aluminum tripolyphosphate fillers into the coating. It was found that the two coatings with 10% glass scales and 20% aluminum tripolyphosphate had the best comprehensive properties. The coatings had good antistatic property, strong mechanical properties, good adhesion, contact angle about 110 掳, good thermal stability and resistance to salt spray for more than 720h.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ637;TE980.5

【参考文献】