循环模拟地热水环境中聚苯硫醚复合涂层的阻垢性能  

Anti-scaling performance of PPS composite coatings in a circulated and simulated geothermal water environment

作　　者：朱立群[1] 吴坤湖[1] 李卫平[1] 刘慧丛[1] 

机构地区：[1]北京航空航天大学材料科学与工程学院,空天材料与服役教育部重点实验室,北京100191

出　　处：《功能材料》2010年第6期1046-1049,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2007AA05Z441)

摘　　要：在地热水的抽取和输送过程中,金属管道和泵的结垢是最普遍的问题。对比研究了聚苯硫醚(PPS)涂层,PPS/聚全氟乙丙烯(FEP)涂层和PPS/聚四氟乙烯(PTFE)涂层在循环模拟地热水环境中的阻垢性能。结果表明,含氟树脂掺杂聚苯硫醚获得的复合涂层表面能较低,其阻垢效果优于单纯的PPS涂层;流水的冲刷和表面能的降低对垢层晶核的生长形貌产生一定的影响;同时,PPS/FEP涂层在地热水环境中具有较好的耐蚀性。In the process of drawing out and transporting geothermal water from the geothermal wells,scaling on the surface of the metal pipes and pump is a common problem.In this paper,the anti-scaling performance of polyphenylenesulfide（PPS） coating,PPS/polyfluorinated ethylene propylene（FEP） and PPS/polytetrafluoroethylene（PTFE） coating were studied in a circulated and simulated geothermal water environment.The results indicated that the surface energy of fluorinated resin-blended PPS coating was lower than pure PPS coating,and their anti-scaling effects were also better than PPS coating.The growth appearance of scaling nucleus was affected by the eroding of running water and debasing of surface energy.Furthermore,the PPS/FEP coating had a better anti-corrosion performance in the geothermal water environment.

关 键 词：地热水 聚苯硫醚复合涂层 阻垢性 耐蚀性 

分 类 号：TB302[一般工业技术—材料科学与工程]