發(fā)布時間：2018-01-16 02:01

  本文關(guān)鍵詞：陽離子型可聚合咪唑類離子液體-丙烯酰胺共聚物的制備及其對鹽酸腐蝕碳鋼緩蝕行為　出處：《應(yīng)用化學(xué)》2017年08期 　論文類型：期刊論文

  更多相關(guān)文章： 陽離子型可聚合咪唑類離子液體 離子液體-丙烯酰胺共聚物 陽離子度 緩蝕劑 緩蝕機(jī)理

【摘要】：利用陽離子型可聚合離子液體1-丙烯酰氧乙基-3-甲基咪唑四氟硼酸鹽與丙烯酰胺的反相微乳液共聚合,制備了陽離子型咪唑類離子液體-丙烯酰胺共聚物緩蝕劑,并探討了其緩蝕性能。研究了不同陽離子度、不同濃度聚合物溶液的緩蝕性能以及吸附時間對鹽酸腐蝕碳鋼速率的影響,并初步討論了緩蝕機(jī)理。研究表明,該種陽離子型緩蝕劑的緩蝕效率可達(dá)90%以上;緩蝕劑的緩蝕能力不僅取決于緩蝕劑的陽離子度,還取決于該種緩蝕劑的相對分子質(zhì)量;緩蝕效率并非簡單地隨聚合物濃度的增加而提高,當(dāng)聚合物溶液的濃度過高時,反而會使緩蝕效率下降;隨吸附時間的延長,碳鋼的腐蝕速率逐漸降低,約40 h后基本保持不變;加入緩蝕劑有效抑制了酸對鐵的腐蝕,隨緩蝕效率的提高,碳鋼表面的粗糙程度明顯降低,孔洞結(jié)構(gòu)減少。
[Abstract]:Inverse microemulsion copolymerization of acrylamide with cationic polymerizable ionic liquid 1-acryloxy ethyl -3-methyl imidazolium tetrafluoroborate was studied. Cationic imidazole ionic liquid-acrylamide copolymer corrosion inhibitor was prepared and its corrosion inhibition performance was discussed. The corrosion inhibition performance of polymer solution with different concentration and the effect of adsorption time on the corrosion rate of carbon steel by hydrochloric acid were discussed. The inhibition efficiency of this kind of cationic corrosion inhibitor is more than 90%. The inhibition ability of the inhibitor depends not only on the cationic degree of the inhibitor, but also on the relative molecular weight of the inhibitor. The corrosion inhibition efficiency is not simply increased with the increase of polymer concentration. When the concentration of polymer solution is too high, the corrosion inhibition efficiency will decrease. With the increase of adsorption time, the corrosion rate of carbon steel decreases gradually and remains unchanged after about 40 h. The addition of corrosion inhibitor can effectively inhibit the corrosion of iron by acid. With the increase of corrosion inhibition efficiency, the surface roughness of carbon steel is obviously reduced and the pore structure is reduced.
【作者單位】： 北京師范大學(xué)化學(xué)學(xué)院環(huán)境友好與功能高分子材料北京師范大學(xué)重點(diǎn)實(shí)驗室;能量存儲與轉(zhuǎn)化北京市重點(diǎn)實(shí)驗室;
【基金】：長江學(xué)者與創(chuàng)新團(tuán)隊發(fā)展計劃及能量轉(zhuǎn)換與存儲材料北京市重點(diǎn)實(shí)驗室開放基金資助~~
【分類號】：TG174.42
【正文快照】： 緩蝕劑在防腐技術(shù)中的應(yīng)用日益廣泛。按電化學(xué)機(jī)理可將緩蝕劑分為陽離子型緩蝕劑、陰離子型緩蝕劑和混合型緩蝕劑三類。緩蝕劑通過物理或化學(xué)過程吸附在金屬表面;任何吸附過程主要依賴于緩蝕劑的物理/化學(xué)性質(zhì),如官能團(tuán)、受體原子的電子密度和分子結(jié)構(gòu)等[1-3]。包含氮、氧、磷，

本文編號：1431026