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[目的]管道是天然气运输的主要方式，而降低管道运输过程中的沿程阻力是提高运输效率的主要技术手段。[方法]优化设计了一种以环氧树脂E-51和固化剂腰果壳油改性酚醛胺为主的无溶剂内减阻涂料，测试了涂层的性能。[结果]该涂料的涂层性能指标符合非腐蚀性气体输送管道内涂层性能规范要求，在测试参数范围内涂层的减阻率为9.1%～28.6%。以塔里木净化气轮库复线工况为例，采用该内减阻涂层的管线减阻率可达27.9%。[结论]利用二聚酸和聚丙二醇二缩水甘油醚(PPGDGE)嵌段聚合改性环氧树脂及硅烷偶联剂改性颜填料有效提高了无溶剂减阻涂料的综合性能，涂料的防腐蚀、耐磨损、黏结强度及减阻性能优异。
Abstract：[Objective] Pipeline is the main mode of natural gas transportation. Reducing the flow resistance along the pipeline during transportation is the main way to improve transportation efficiency. [Method] A solvent-free paint for internal drag reduction was formulated with epoxy resin E-51 as binder and cashew nut shell oil modified phenolic amine as curing agent, and its properties were tested. [Result] The coating met all requirements of interior coating specifications for noncorrosive gas transportation pipelines. The drag reduction rate ranged from 9.1% to 28.6% under test conditions.Field application on the Tuntai-to-Korla multiple line of Tarim natural gas purification project achieved an internal drag reduction rate of 27.9%. [Conclusion] The modification of epoxy through block copolymerization with dimeric acid and polypropylenglycol diglycidyl ether(PPGDGE), combined with silane-modified pigments and fillers, significantly enhances the comprehensive coating performance, delivering excellent corrosion/wear resistance, adhesion strength, and sustained drag reduction.
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基本信息:
DOI：10.19289/j.1004-227x.2025.06.019
中图分类号:TE973;TQ630.7
引用信息:
[1]谭川江,毛学强,陈广明等.一种输气管道无溶剂环氧内减阻涂料的研究[J].电镀与涂饰,2025,44(06):138-144.DOI:10.19289/j.1004-227x.2025.06.019.
基金信息:
中国石油天然气股份有限公司塔里木油田分公司科技开发研究项目“净化气管道减阻耐磨涂料研究”（201023063402）