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序言人们为了改善混凝土的性能已作了很大的努力,而且许多天然聚合物如亚硫酸盐碱液已广泛用作混凝土的外加剂。聚合物分散剂的优越性已促使人们去研究以蜜胺为基础的聚合物。聚合物绝对的可溶性是一个重要的判断标准,绝对可溶性可借助引入磺酸基团来达到。从许多合成聚合物中挑选出一种,其蜜胺:甲醛:磺酸的克分子比率为1:3:1具有良好和易性的混凝土一直是建筑工业感兴趣的,但是,总有不利一面的影响,
Preamble People have made great efforts to improve the performance of concrete, and many natural polymers such as sulfite lye have been widely used as admixtures of concrete. The advantages of polymeric dispersants have prompted one to study melamine-based polymers. Absolute solubility of polymers is an important criterion for determining absolute solubility by incorporating sulfonic acid groups. One of a number of synthetic polymers has been selected that has a molar ratio of melamine: formaldehyde: sulfonic acid of 1: 3: 1. Concrete with good workability has always been of interest to the construction industry, but there are always disadvantages Impact,