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ID:29389642
大小:1.25 MB
页数:34页
时间:2018-12-19
《吡唑与苯并三唑铜缓蚀剂协同效应的机理研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、中国石油大学(华东)毕业设计(论文)吡唑与苯并三唑铜缓蚀剂协同效应的机理研究学生姓名:王文杰学号:07132119专业班级:材料物理07-1班指导教师:胡松青2011年6月28日中国石油大学(华东)毕业设计(论文)摘要采用分子动力学模拟方法,通过计算H-2O和HCO3腐蚀粒子在BTA、Pz以及BTA和Pz复配膜中的扩散系数,并分析缓蚀剂膜的自由体积分数、腐蚀粒子与膜的相互作用能以及膜内缓蚀剂分子的自扩散系数,研究了BTA和Pz在NaHCO3弱碱性溶液中的协同作用及其微观机理。结果显示BTA和Pz单独作用时,腐蚀粒子在缓蚀剂膜中的扩散系数满足D(Pz)2、z)D(Pz)>D(BTA)。由此可知,BTA和Pz存在协同作用,复配后缓蚀效率进一步提高;同时,计算机模拟的结果与实验评价值相符合,验证了采用计算机分子动力学模拟研究缓蚀剂之间的协同效应的可行性。关键词:缓蚀剂;协同效应;扩散;分子动力学;计算机分子模拟中国石油大学(华东)毕业设计(论文)ABSTRACTInthisarticle,usingthemethodofmoleculardynamicssimulation,wecalculatethed3、iffusioncoefficientofH-2OandHCO3particleintheinhibitormembraneofBTA、PzandtheformulationofBTAandPz,andanalysisthefractionalfreevolumeofinhibitormembrane、theinteractionenergybetweencorrosionparticlesandinhibitormembraneandtheself-diffusioncoefficientofinhibitormembrane,andwealsohavestudiedthesynergis4、ticeffectbetweenBTAandPzascopperinhibitorsinNaHCO3weaklyalkalinesolution,andthemechanismbetweenthem.ResultsshowthatwhenBTAandPzexistalone,thediffusioncoefficientofcorrosionparticleintheinhibitormembranefollowsthefollowingrule:D(Pz)5、ionalfreevolumeofinhibitormembraneandtheself-diffusioncoefficientofinhibitormembranearealsoobeyedthatrule,buttheinteractionenergybetweencorrosionparticlesandinhibitormembranefollowtheoppositerule:D(BTA+Pz)>D(Pz)>D(BTA).WeconcludethatthereissynergisticeffectbetweenBTAandPz,andthecorrosionefficiencyi6、senhancedafterblendtogether.Meanwhile,theresultofcomputermoleculardynamicssimulationissuitableforexperimentalresults,andthisdemonstratethatusingcomputermoleculardynamicssimulationforthestudyofsynergisticeffectofcorrosioninhibitorisareasonableandfeasiblemethod.Keywords:Corrosioninhibitors;Synergisti7、ceffect;Diffusion;Moleculardynamics;Computermoleculesimulation中国石油大学(华东)毕业设计(论文)目录第一章前言.................................................................................................................11缓蚀剂概
2、z)D(Pz)>D(BTA)。由此可知,BTA和Pz存在协同作用,复配后缓蚀效率进一步提高;同时,计算机模拟的结果与实验评价值相符合,验证了采用计算机分子动力学模拟研究缓蚀剂之间的协同效应的可行性。关键词:缓蚀剂;协同效应;扩散;分子动力学;计算机分子模拟中国石油大学(华东)毕业设计(论文)ABSTRACTInthisarticle,usingthemethodofmoleculardynamicssimulation,wecalculatethed
3、iffusioncoefficientofH-2OandHCO3particleintheinhibitormembraneofBTA、PzandtheformulationofBTAandPz,andanalysisthefractionalfreevolumeofinhibitormembrane、theinteractionenergybetweencorrosionparticlesandinhibitormembraneandtheself-diffusioncoefficientofinhibitormembrane,andwealsohavestudiedthesynergis
4、ticeffectbetweenBTAandPzascopperinhibitorsinNaHCO3weaklyalkalinesolution,andthemechanismbetweenthem.ResultsshowthatwhenBTAandPzexistalone,thediffusioncoefficientofcorrosionparticleintheinhibitormembranefollowsthefollowingrule:D(Pz)5、ionalfreevolumeofinhibitormembraneandtheself-diffusioncoefficientofinhibitormembranearealsoobeyedthatrule,buttheinteractionenergybetweencorrosionparticlesandinhibitormembranefollowtheoppositerule:D(BTA+Pz)>D(Pz)>D(BTA).WeconcludethatthereissynergisticeffectbetweenBTAandPz,andthecorrosionefficiencyi6、senhancedafterblendtogether.Meanwhile,theresultofcomputermoleculardynamicssimulationissuitableforexperimentalresults,andthisdemonstratethatusingcomputermoleculardynamicssimulationforthestudyofsynergisticeffectofcorrosioninhibitorisareasonableandfeasiblemethod.Keywords:Corrosioninhibitors;Synergisti7、ceffect;Diffusion;Moleculardynamics;Computermoleculesimulation中国石油大学(华东)毕业设计(论文)目录第一章前言.................................................................................................................11缓蚀剂概
5、ionalfreevolumeofinhibitormembraneandtheself-diffusioncoefficientofinhibitormembranearealsoobeyedthatrule,buttheinteractionenergybetweencorrosionparticlesandinhibitormembranefollowtheoppositerule:D(BTA+Pz)>D(Pz)>D(BTA).WeconcludethatthereissynergisticeffectbetweenBTAandPz,andthecorrosionefficiencyi
6、senhancedafterblendtogether.Meanwhile,theresultofcomputermoleculardynamicssimulationissuitableforexperimentalresults,andthisdemonstratethatusingcomputermoleculardynamicssimulationforthestudyofsynergisticeffectofcorrosioninhibitorisareasonableandfeasiblemethod.Keywords:Corrosioninhibitors;Synergisti
7、ceffect;Diffusion;Moleculardynamics;Computermoleculesimulation中国石油大学(华东)毕业设计(论文)目录第一章前言.................................................................................................................11缓蚀剂概
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