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引言铝在盐酸中的腐蚀研究国内外均有报导,但多采用失重法,量气法,电化学法和比色法等。近年来Fouda等采用简便省时的Mylius量热法研究了氨基硫脲及其衍生物对铝在盐酸中的缓蚀作用,但未论及吡啶类阳离子表面活性剂的缓蚀作用以及温度等因素对缓蚀效果的影响。本文采用Mylius量热法(国内尚未见报导)研究阳离子表面活性剂氯代十六烷基吡啶对铝在盐酸中的缓蚀作用,并根据反应温度和表面活性剂浓度对缓蚀率的影响,应用吸附理论讨论阳离子表面活性剂的缓蚀机理。
Introduction The corrosion of aluminum in hydrochloric acid has been reported both at home and abroad, but the weight loss method, the gas method, the electrochemical method and the colorimetric method are mostly used. In recent years, Fouda and other simple and time-saving Mylius calorimethrin thiosemicarbazone and its derivatives on the corrosion inhibition of aluminum in hydrochloric acid, but no consideration of pyridine-based cationic surfactant corrosion and temperature and other factors Effect on corrosion inhibition. In this paper, the use of Mylius calorimetry (not yet reported in the country) to study the cationic surfactant chlorinated cetylpyridine inhibition of aluminum in hydrochloric acid, and according to the reaction temperature and surfactant concentration on the inhibition rate, Application of adsorption theory to discuss the corrosion inhibition mechanism of cationic surfactants.