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摘要：作为当今社会十分重要的一种工程材料之一的金属材料。不管是建筑，工业，还是农业生产，都会用到大量的金属材料。但是这些金属材料又无时无刻的被无视损耗。我国每年已有超过500万吨的钢材被腐蚀，金属的腐蚀会直接造成非常大的经济损失。对于未使用的钢材，腐蚀是一种资源消耗，对于已经使用中的钢材，腐蚀是一种非常大的安全隐患。本论文主要内容是赖氨酸-天冬氨酸共聚物的合成和其对钢材缓蚀性能研究。并研究在不同环境下赖氨酸-天冬氨酸共聚物对钢材缓蚀性能的变化。首先聚天冬氨酸具有一定缓蚀性能和阻垢性能，但是由于其官能团结构的限制，他的缓蚀效果并不是很明显。所以本论文以天冬氨酸，和赖氨酸为单体进行共聚，生成，赖氨酸天冬氨酸共聚物。此处课题研究采用的是将天冬氨酸180摄氏度下生成聚琥珀酰亚胺，之后与赖氨酸进行混合，在强碱环境下pH=10，以水为溶剂，常温搅拌24小时进行合成。24小时后将所得溶液烘干后可得浅黄色粉末。将所得粉末用红外进行表征，确定成功合成了赖氨酸-天冬氨酸共聚物。并用用所得粉末配成标准溶液，用标准溶液配制在系列各浓度梯度的试液对冷却水化学处理标准腐蚀片A3型钢片，进行一系列横向缓蚀测试。从温度，pH，溶液浓度，等环境条件的改变对赖氨酸-天冬氨酸共聚物对A3型钢片的缓蚀性能进行研究。并对比赖氨酸-天冬氨酸共聚物相比聚天冬氨酸的缓蚀性能的差异。结果表明，赖氨酸-天冬氨酸共聚物相比聚天冬氨酸的缓蚀性能有较大的提升，在赖氨酸，天冬氨酸1:1的比例混合进行合成共聚物时，能达到最大的缓蚀效果。在室温下或较高温度下，溶液浓度为15mg/l，pH为7-11时，对钢材有较好的缓蚀效果。41750
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毕业论文关键词： 赖氨酸；天冬氨酸；聚天冬氨酸；赖氨酸-天冬氨酸共聚物；缓蚀
A Study on inhibition performance of lysine - ASp - ASp - acid copolymer
Abstract: As one of the important engineering materials in today's society. Whether it is construction, industry, or agricultural production, will use a large number of metal materials. But these metals are constantly being ignored. China has more than 5 million tons of steel each year, corrosion, metal corrosion will directly cause a very large economic losses. For unused steel, corrosion is a resource consumption, for the steel has been used, corrosion is a very big security risk. The main content of this paper is the synthesis of lysine - aspartate - aspartate and its corrosion resistance of steel. The changes of the corrosion resistance of the lysine - ASP - ASP copolymer in different environments were studied.First of all, it has certain corrosion inhibition and scale inhibition performance. However, due to the limitation of functional group structure, the corrosion inhibition effect is not very obvious. All of the papers were CO produced with aspartate, lysine, and lysine. Here the research adopts the aspartic acid 180 degrees Celsius to generate polysuccinimide, and lysine were mixed, pH in the alkaline environment, with water as solvent, stirring at normal temperature for 24 hours were synthesized. After 24 hours, the resulting solution can be obtained after drying the light yellow powder. The obtained powder was characterized by IR, and the lysine - aspartate copolymer was successfully synthesized. And with the proceeds of the mixed powder into standard solution, standard solution preparation in solution series of the concentration gradient of cooling water chemical treatment standard corrosion of A3 steel sheet and a series of lateral inhibition test. From the changes of temperature, pH, solution concentration, and other environmental conditions, the corrosion inhibition performance of A3 type steel sheet was studied. And comparison of the inhibition performance of the lysine - ASP - ASP.The results showed that lysine and aspartic acid copolymer compared to poly aspartic acid corrosion inhibition performance has greatly improved, in lysine, aspartic acid 1:1 mixture of synthetic copolymers, can reach the maximum inhibition effect. At room temperature or higher temperature, the solution concentration is 15mg/l, pH is 7-11, the steel has good corrosion inhibition effect.