铜网负载Ba^(2+)印迹聚合物膜的制备及其吸附性能研究  

Preparation and Adsorption Properties of Copper Mesh Loading Ba2+Imprinted Polymer Membrane

作　　者：王天文 王楠[1] 相杰 李莹莹 孟祖超[1] WANG Tianwen;WANG Nan;XIANG Jie;LI Yingying;MENG Zuchao(Xi'an Shiyou University,Shaanxi University Engineering Research Center of Oil and Gas Field Chemistry,Xi'an 710065,China)

机构地区：[1]西安石油大学,油气田化学陕西省高校工程研究中心,陕西西安710065

出　　处：《化工技术与开发》2025年第4期6-11,共6页Technology & Development of Chemical Industry

基　　金：陕西省自然科学基础研究计划项目(2018JM2014);西安石油大学研究生创新与实践能力培养计划项目(YCS23214230)。

摘　　要：在油田的开发过程中,硫酸钡垢常会堵塞油井井筒或注水管线,因此有效清除硫酸钡垢成为提高油田效率和保障生产安全的主要问题。本文以铜网为载体,将其依次进行羟基化和硅烷化后,再加入功能单体甲基丙烯酸(MAA)、模板离子Ba^(2+)、交联剂乙二醇二甲基丙烯酸酯(EGDMA)、引发剂偶氮二异丁腈(AIBN),经聚合反应制备了铜网负载的钡离子印迹聚合物Ba^(2+)-IIPs(PMAA)。采用扫描电镜、红外光谱等手段,对Ba^(2+)-IIPs(PMAA)进行了表征,探究了其最佳吸附条件、选择性吸附性能和循环吸附性能。结果表明,Ba^(2+)-IIPs(PMAA)对Ba^(2+)的吸附量为534mg·g^(-1)。Ba^(2+)-IIPs(PMAA)对Ba^(2+)的吸附过程是以化学吸附为主的多分子层混合吸附,符合准二级动力学模型和Freundlich吸附等温模型。Ba^(2+)-IIPs(PMAA)可选择性地除去水中成垢的Ba^(2+),有效防止硫酸钡垢的产生,为油田水的阻垢提供了新思路。During oilfield development,barium sulfate scale frequently clogs wellbores and water injection pipelines,posing a significant challenge to oilfield efficiency and production safety.Effectively removing barium sulfate scale has become a critical issue.In this study,barium ion-imprinted polymers[Ba^(2+)-IIPs(PMAA)]were synthesized on a copper mesh substrate.The preparation process involved hydroxylation and silanization of the copper mesh,followed by polymerization using methyl acrylic acid(MAA) as a functional monomer,Ba^(2+) as a template ion,ethylene glycol dimethacrylate (EGDMA) as a crosslinking agent,and azobisisobutyronitrile (AIBN) as an initiator.The resulting Ba^(2+)-IIPs(PMAA) were characterized by scanning electron microscopy(SEM),energy-dispersive spectroscopy (EDS),and Fourier-transform infrared spectroscopy (FT-IR).The adsorption conditions,selective adsorption,and cyclic adsorption properties were systematically investigated.The results revealed that Ba^(2+)-IIPs(PMAA)exhibited an adsorption capacity of 534.72mg/g.The adsorption mechanism is chemisorption,conforming to the quasi-second-order kinetic model and Freundlich isotherm model.This selective removal of Ba^(2+) from water effectively inhibits the formation of barium sulfate scale at its source,providing a novel approach to scale prevention in oilfield water systems.

关 键 词：印迹聚合物 吸附性 制备 性能 Ba^(2+)离子 

分 类 号：O631.3[理学—高分子化学] O647.33[理学—化学]