摘要：

聚天冬氨酸是一种新型绿色环保水处理剂，生物降解性好，广泛用于医药、农业、日化、水处理等领域。用作水处理剂时，聚天冬氨酸主要起到阻垢、分散的作用，兼具缓蚀作用，可抑制水中碳酸钙垢、硫酸钙垢、硫酸钡垢和磷酸钙垢的形成。为拓宽其在水处理领域的应用范围，使其适用于各种复杂的水质环境，近年来研究者对聚天冬氨酸进行了改性研究，得到国内外广泛关注。在简要回顾水处理领域中聚天冬氨酸改性途径的基础上，评述了改性聚天冬氨酸衍生物在阻碳酸钙垢、硫酸钙垢、磷酸钙垢，分散氧化铁、缓蚀以及生物降解性等方面的研究现状，同时分析了羧基、羟基、磺酸基、酰胺基等基团的引入对聚天冬氨酸阻垢缓蚀性能的影响，并对改性聚天冬氨酸类阻垢缓蚀剂未来的发展方向进行了展望。

关键词: 改性, 聚天冬氨酸, 阻垢, 缓蚀, 生物降解

Abstract:

As a new type of green water treatment agent, polyaspartic acid(PASP) has good biodegradability and is widely used in medicine, agriculture, daily chemical, water treatment and other fields. When used as water treatment agent, polyaspartic acid mainly plays the role of scale inhibition and dispersion, as well as corrosion inhibition, which can inhibit the formation of calcium carbonate scale, calcium sulfate scale, barium sulfate scale and calcium phosphate scale in water. In order to broaden its range of application in the field of water treatment and make it suitable for a variety of complex water environment, the modification of PASP has been widely concerned at home and abroad in recent years. Based on a brief review of the modification approaches of PASP in field of water treatment, the application status of PASP derivatives in terms of scale inhibition of CaCO₃, CaSO₄, Ca₃(PO₄)₂, as well as dispersion of iron oxide, corrosion inhibition and biodegradability were reviewed. The effects of carboxyl, hydroxyl, sulfonic acid and amide groups on the scale and corrosion inhibition performance of PASP were analyzed. The future development direction of modified PASP scale and corrosion inhibitor was prospected.

Key words: modification, polyaspartic acid, scale inhibition, corrosion inhibition, biological degradation

中图分类号: 

• TQ085+.4