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Development and progress in polymer materials foranti-corrosion and anti-fouling applications:A review 被引量:1
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作者 LYU Ren-jiang WANG Nan +5 位作者 ZHANG Rui-yong GAO Guang-tao li sheng-xi DUAN Ji-zhou HOU Bao-rong SAND Wolfgang 《Journal of Central South University》 SCIE EI CAS CSCD 2024年第10期3547-3569,共23页
Corrosion has always been a difficult problem that troubles and restricts the application and development ofengineering materials.By endowing coatings on metal surfaces with polymer material,it is possible to protect ... Corrosion has always been a difficult problem that troubles and restricts the application and development ofengineering materials.By endowing coatings on metal surfaces with polymer material,it is possible to protect othermaterials from factors including acid and alkali,water vapor,bacteria.Therefore,it is necessary to summarize theresearch progress of polymer materials in the field of pollution and corrosion prevention in recent years.This articlesummarizes four types of polymer materials with good weather resistance:polyurethane(PU),polydimethylsiloxane(PDMS),polyvinylidene fluoride(PVDF),and polyvinylidene chloride(PVDC).These four polymer materials aresuitable for making polymer anti-corrosion or anti-fouling materials and each has its own characteristics.PU can firmlyadhere to various substrates,effectively protecting and extending their lifespan,but the environmentally friendly varietiescurrently used,namely water-borne polyurethanes(WPU),generally have poor mechanical properties.PDMS is nontoxicand has excellent hydrophobicity,but its static anti-fouling ability is insufficient when applied in the field of antifouling.PVDF has good chemical resistance and high mechanical properties,good UV resistance making it suitable foroutdoor use like in the marine environment.However,PVDF lacks flexibility after molding and its manufacturing cost isrelatively high.PVDC has excellent water vapor barrier properties,but poor adhesion to metal material surfaces.Therefore,researchers need to modify these four polymers when using them to solve the problem of corrosion orbiofouling.The article will review the research progress of four types of polymers in recent years from the perspectivesof anti-corrosion,anti-fouling,and a strategy named as self-healing that is beneficial for protecting polymer surfacesfrom mechanical damage,and summarize the modification methods adopted by researchers when applying thesematerials.Finally,a summary of the application and the prospects of these polymer materials are presented. 展开更多
关键词 ANTI-CORROSION POLYMER corrosion ANTI-FOULING SELF-HEALING
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贵州乌蒙山黔西地区二叠系玄武岩地球化学特征及其地质意义 被引量:9
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作者 孙平原 何碧 +8 位作者 赵飞 李生喜 胡杨 王宁祖 张志玺 赵振琯 张文斌 黄鹏飞 赵洪葆 《科学技术与工程》 北大核心 2019年第12期41-51,共11页
贵州乌蒙山黔西地区二叠系玄武岩,主要由斜长石(±55%)、辉石(±35%)与少量玻璃质(±7%)、磁铁矿(±3%)等组成。为深入探讨二叠系玄武岩的岩石成因,对其13件玄武岩样品进行了主微量元素分析,地球化学结果显示,玄武岩具... 贵州乌蒙山黔西地区二叠系玄武岩,主要由斜长石(±55%)、辉石(±35%)与少量玻璃质(±7%)、磁铁矿(±3%)等组成。为深入探讨二叠系玄武岩的岩石成因,对其13件玄武岩样品进行了主微量元素分析,地球化学结果显示,玄武岩具有高TiO_2(平均4.22%)、Al_2O_3(平均13.06%)、Fe_2O_3(平均4.59%)、FeO(平均8.85%)、MgO(平均4.39%)、CaO(平均6.97%)含量,低SiO_2(平均49.30%)、Na_2O(平均2.67%)、K_2O(平均1.42%)和P_2O_5(平均0.47%)含量的特征,Mg~#值介于19.63~41.89。岩石稀土元素配分曲线具明显右倾特征,轻重稀土分异不显著,具弱负Eu异常,δEu=0.81~0.9;岩石富集Rb、K、Th、U等大离子亲石元素和亏损Ba、Sr、P等高场强元素;岩石具高的La/Sm(3.33~6.62),低的(Th/Ta)_(PM)(0.61~1.33)与(La/Nb)_(PM)(0.96~1.22)。综合研究分析认为,该套玄武岩属于晚二叠世峨眉山高钛玄武岩;岩浆源区为富集地幔组分,岩浆上升过程中遭受下地壳物质的混染;深入探讨了贵州乌蒙山区及领区二叠系的成岩构造背景。 展开更多
关键词 二叠系 峨眉山玄武岩 地球化学 岩石成因 黔西地区
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黔北地区合山组硅质沉积物地球化学特征及其地质意义 被引量:2
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作者 何碧 辛欢 +6 位作者 赵飞 陶刚 张文斌 王宁祖 李生喜 孙平原 张志玺 《科学技术与工程》 北大核心 2022年第26期11321-11333,共13页
为明确黔北官坝—革木地区上二叠统合山组硅质沉积物(硅质岩、硅质灰岩)特征及其成因,对硅质沉积物样品进行主量元素、稀土元素和微量元素测试分析。其地球化学结果表明:官坝剖面硅质岩SiO_(2)含量在90.95%~93.98%,Al_(2)O_(3)含量在0.4... 为明确黔北官坝—革木地区上二叠统合山组硅质沉积物(硅质岩、硅质灰岩)特征及其成因,对硅质沉积物样品进行主量元素、稀土元素和微量元素测试分析。其地球化学结果表明:官坝剖面硅质岩SiO_(2)含量在90.95%~93.98%,Al_(2)O_(3)含量在0.46%~0.94%;申家寨剖面硅质灰岩SiO_(2)含量在39.18%~63.55%,Al_(2)O_(3)含量在0.49%~0.82%,CaO含量在18.44%~29.81%;硅质沉积物常量元素Al/(Al+Fe+Mn)在0.18~0.43,Al/(Al+Fe)在0.18~0.44,U/Th在0.76~1.34、平均为1.07,ΣREE为7.70×10^(-6)~35.25×10^(-6),均指示硅质沉积物为热水沉积成因;硅质沉积物Ce/Ce^(*)为0.72~0.87,呈负Ce异常,Eu/Eu^(*)为1.10~1.41(PM315-DH1为0.98),呈正Eu异常,(La/Yb)_(N)为1.02~5.45,平均为3.07,(La/Ce)_(N)为1.25~1.60,平均为1.48,指示其形成于受陆源影响输入不明显的大陆边缘环境。结合区域岩相古地理演化特征,在黔北官坝-革木地区晚二叠世长兴期硅质沉积物为热水成因,沉积环境为大陆边缘环境。 展开更多
关键词 合山组 硅质沉积物 热水成因 上二叠统
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