【摘要】：2013年聯(lián)合國環(huán)境規(guī)劃署發(fā)文:到2020年將禁止生產(chǎn)、進口和出口含汞產(chǎn)品。我國是電池生產(chǎn)大國,也是消費大國。為了響應全球無汞化的號召,本論文從綠色能源、環(huán)境保護、節(jié)能減排的角度出發(fā),開發(fā)價廉易得高效環(huán)保的代汞緩蝕劑來解決日常生活用鋅錳電池的汞污染問題。本文通過Tafel極化曲線測試篩選出一些有機表面活性劑類緩蝕劑,對其結構分析后合成了一類咪唑基水溶性離子液體。對單一緩蝕劑的極化曲線測試發(fā)現(xiàn):這些物質單一使用時緩蝕效率只有70%左右。將其緩蝕效果好的表面活性劑和離子液體進行L16(45)正交試驗復配,得出復配后的緩蝕效率達97.92%,達國內領先水平。分別探討了表面活性劑和離子液體對鋅電極的熱力學行為和緩蝕作用機理,得出:二者在鋅電極表面的吸附為自發(fā)進行的,吸附規(guī)律均遵循朗格繆爾吸附等溫式,20 kJ/mol|ΔGads|40 kJ/mol,屬于物理-化學吸附。電化學測試后擬合的等效電路為R(CR)模型。通過循環(huán)伏安、交流阻抗研究復配緩蝕劑的緩蝕機理,得出二者間產(chǎn)生協(xié)同作用,降低了電池內阻,為物理-化學吸附。通過優(yōu)化漿料配方和緩蝕劑用量,制得滿足標準QB/T 2303-2008技術要求的綠色無汞漿層紙。用于鋅錳電池中,電池各項性能達到GB 8897-2008-T技術要求,且放分時間、保持率均優(yōu)于現(xiàn)有的低汞電池、含鉍、含銦電池,具有很好的工業(yè)化推廣前景。
[Abstract]:In 2013, the United Nations Environment Programme (UNEP) issued a ban on the production, import and export of mercury-containing products by 2020. Our country is the battery production big country, also is the consumer big country. In order to respond to the call of global mercury-free, from the point of view of green energy, environmental protection, energy saving and emission reduction, this paper develops a cheap and environmentally efficient mercury substitute corrosion inhibitor to solve the mercury pollution problem of zinc manganese batteries used in daily life. In this paper, some organic surfactants corrosion inhibitors were selected by Tafel polarization curve test, and a class of imidazolyl water-soluble ionic liquids were synthesized after structure analysis. The polarization curves of a single inhibitor show that the corrosion inhibition efficiency is only about 70% when these substances are used alone. The surface active agent and ionic liquid with good corrosion inhibition effect were mixed with L16 (45) orthogonal test, and the corrosion inhibition efficiency reached 97.92, which reached the leading level in China. The thermodynamic behavior and corrosion inhibition mechanism of surface active agent and ionic liquid on zinc electrode were discussed respectively. It was concluded that the adsorption on zinc electrode was spontaneous, and the adsorption law followed Langmuir adsorption isotherm. 20 kJ/mol Gads 螖 Gads 40 kJ/mol, belongs to physicochemical adsorption. The equivalent circuit fitted after electrochemical test is R (CR) model. The corrosion inhibition mechanism of the complex corrosion inhibitor was studied by cyclic voltammetry and AC impedance, and the synergistic effect between the two was obtained, which reduced the internal resistance of the battery and was physico-chemical adsorption. The green mercury-free pulp layer paper which meets the technical requirements of standard QB/T 2303-2008 was prepared by optimizing the slurry formulation and the amount of corrosion inhibitor. The performance of Zn-Mn battery is up to the technical requirement of GB 8897-2008-T, and the separation time and retention rate are better than those of the existing low mercury battery, bismuth and indium battery.
【學位授予單位】：河北科技大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TM911.14

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本文編號：2345316