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保水剂 (Ｗａｔｅｒ -ｒｅｔａｉｎｉｎｇａｇｅｎｔ)是一种超吸水性的高分子聚合物 (Ｓｕｐｅｒａｂｓｏｒｂｅｎｔｐｏｌｙｍｅｒｓ)。目前共分两大类。一类是丙烯酰胺—丙烯酸盐共聚交联物 (简称聚丙烯酰胺型 ) ,使用周期和寿命较长 ,凝胶强度高 ,颗粒状产品 ,在土壤中的蓄
Water-retaining agent is a superabsorbent polymer. Currently divided into two categories. One is acrylamide - acrylate copolymer cross-linked (abbreviated as polyacrylamide type), the use of longer life cycle and high gel strength, granular products, stored in the soil