Poly(styrene-alt-maleic anhydride) ionic salt functionalized reduced graphene oxide doped with rare earth ions for anti-corrosion performance enhancement

Hu Yue; Zhan Weiwu; Wu Zhifeng; Tang Yanreng; Huang Yangdi; Ding Xu Te; Chen Dianyu

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Poly(styrene-alt-maleic anhydride) ionic salt functionalized reduced graphene oxide doped with rare earth ions for anti-corrosion performance enhancement

机译：聚（苯乙烯 - ALT-马来酸酐）离子盐官能化的氧化石墨烯氧化物掺杂稀土离子进行防腐蚀性能增强

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A novel organic-inorganic nanocomposite material of rare earth ions/pol(styrene-alt-maleic anhydride) ionic salt/reduced graphene oxide (Re3+/SMA-Is/rGO) was prepared successfully. Poly(styrene-alt-maleic anhydride) ionic salt functionalized reduced graphene oxide (SMA-Is/rGO) was processed with two methods of pi-pi conjugation and ionization; rare earth ions (Re3+ = La3+, Ce3+ Pr3+) was doped on the surface of rGO by physical mixing. SMA-Is reduced surface energy and enlarged the interlayer spacing between rGO nanosheets, ensuring that Re3+/SMA-Is/rGO could form a uniform dispersed phase in the organic coating. The anti-corrosion performance of the nanocomposite coating was measured by electrochemical techniques in corrosive medium, revealing that introducing the nanocomposite to epoxy matrix exhibited a significant decline of the increase of corrosion potential and corrosion current density. In all samples, La3+/SMA-Is/rGO had the highest anticorrosion performance, and the protection efficiency on mild steel was up to 98.97%.

机译：成功制备了稀土离子/苯乙烯-马来酸酐（pol）离子盐/还原氧化石墨烯（Re3+/SMA-Is/rGO）的新型有机-无机纳米复合材料。采用π-π共轭和电离两种方法制备了苯乙烯-马来酸酐离子盐功能化还原氧化石墨烯（SMA-Is/rGO）；采用物理混合的方法将稀土离子（Re3+=La3+，Ce3+Pr3+）掺杂到rGO表面。SMA降低了表面能，增大了rGO纳米片之间的层间距，确保Re3+/SMA Is/rGO能在有机涂层中形成均匀的分散相。通过电化学技术测试了纳米复合涂层在腐蚀介质中的耐蚀性能，发现将纳米复合材料引入环氧树脂基体后，腐蚀电位和腐蚀电流密度的增加显著降低。在所有样品中，La3+/SMA Is/rGO的防腐蚀性能最高，对低碳钢的保护效率高达98.97%。

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来源
《Journal of Applied Polymer Science》 |2021年第28期|共14页
作者
Hu Yue; Zhan Weiwu; Wu Zhifeng; Tang Yanreng; Huang Yangdi; Ding Xu Te; Chen Dianyu;
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作者单位

Changshu Inst Technol Jiangsu Key Lab Funct Mat Dept Mat Engn Changshu 215500 Jiangsu Peoples R China;

Changshu Inst Technol Jiangsu Key Lab Funct Mat Dept Mat Engn Changshu 215500 Jiangsu Peoples R China;

Changshu Inst Technol Jiangsu Key Lab Funct Mat Dept Mat Engn Changshu 215500 Jiangsu Peoples R China;

Changshu Inst Technol Jiangsu Key Lab Funct Mat Dept Mat Engn Changshu 215500 Jiangsu Peoples R China;

Changshu Inst Technol Jiangsu Key Lab Funct Mat Dept Mat Engn Changshu 215500 Jiangsu Peoples R China;

Changshu Inst Technol Jiangsu Key Lab Funct Mat Dept Mat Engn Changshu 215500 Jiangsu Peoples R China;

Changshu Inst Technol Jiangsu Key Lab Funct Mat Dept Mat Engn Changshu 215500 Jiangsu Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类高分子化合物工业（高聚物工业）;
关键词
barrier performance; corrosion protection; Re3+/SMA-Is/rGO; pi-pi conjugation;

机译：屏障性能;腐蚀保护;RE3 + / SMA-IS / RGO;PI-PI共轭;

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Poly(styrene-alt-maleic anhydride) ionic salt functionalized reduced graphene oxide doped with rare earth ions for anti-corrosion performance enhancement

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