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毛金成,韩涤非,杨小江,等. 特种聚酰亚胺作为油田管材涂层的性能评价[J]. 科学技术与工程, 2019, 19(28): 129-135.
Jincheng Mao,Difei Han,Xiaojiang Yang,et al.Performance Evaluation of Special Polyimide as Oilfield Tube Coating[J].Science Technology and Engineering,2019,19(28):129-135.
特种聚酰亚胺作为油田管材涂层的性能评价
Performance Evaluation of Special Polyimide as Oilfield Tube Coating
投稿时间:2019-02-07  修订日期:2019-04-26
DOI:
中文关键词:  聚酰亚胺涂层  高温高压腐蚀实验  盐雾实验  腐蚀实验  高低温交变湿热实验
英文关键词:polyimide coating  high temperature and high pressure corrosion test  salt spray experiment  corrosion experiment  high and low temperature alternating damp heat test
基金项目:国家科技重大专项“大型油气田及煤层气开发”(项目编号:2016ZX05053)、四川省青年科技基金“页岩气开发中管柱防腐工艺研究”(项目编号:2017JQ0010)
              
作者单位
毛金成 西南石油大学 油气藏地质及开发工程国家重点实验室
韩涤非 西南石油大学 油气藏地质及开发工程国家重点实验室
杨小江 西南石油大学 油气藏地质及开发工程国家重点实验室
王基臣 西南石油大学 油气藏地质及开发工程国家重点实验室
赵金洲 西南石油大学 油气藏地质及开发工程国家重点实验室
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中文摘要:
      聚酰亚胺是综合性能最佳的有机高分子材料之一,作为一种特种工程材料,已广泛应用在航空、航天、微电子、纳米、液晶、分离膜、激光等领域不仅如此聚酰亚胺在防腐蚀方面特具有非常好的应用前景,但目前国内对于聚酰亚胺作为油田管材涂层的报道并不多。本文将改性后的聚酰亚胺采用静电喷涂的方式在油田常用的P110S钢表面制备了一种防腐蚀涂层。模拟石油管道所处的恶劣环境通过盐雾实验、浸泡实验以及高温高压动态失重法实验对涂层在不同腐蚀环境中的耐蚀性能进行了评价。通过附着力测试和耐磨性能测试以及耐高低温交变湿热实验对涂层的物理性能进行了评价。涂层不仅能经受高压的高酸性环境中的腐蚀,而且能够经受硫酸、氢氟酸、次氯酸等具有强氧化性的酸。涂层具有非常强的附着力以及机械强度,磨损量仅为二氧化锆的1/2。
英文摘要:
      Polyimide is one of the best organic polymer materials with comprehensive performance, which as a special engineering material has been widely used in aviation, aerospace, microelectronics, nano, liquid crystal, separation membrane, laser and other fields. Polyimide has excellent application prospects in anti-corrosion, but there are not many reports on polyimide as oilfield pipe coating. In this paper, an improved anti-corrosion coating was prepared on the surface of P110S steel used in oilfield by electrostatic spraying. The corrosion resistance of the coating in different corrosive environments was evaluated by salt spray test, immersion test and high temperature and high pressure dynamic weight loss test under the harsh environment of the simulated oil pipeline. The physical properties of the coating were evaluated by adhesion test and abrasion resistance test as well as high and low temperature alternating damp heat test. The experimental data show that the coating can not only withstand the corrosion in a high-pressure, high-acid environment, but also can withstand strong oxidizing acids such as sulfuric acid, hydrofluoric acid, and hypochlorous acid. The coating has very strong adhesion and mechanical strength, and the wear is only 1/2 of that of zirconium dioxide.
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