水解蛋白石膏缓凝剂的制备与复配研究  

Study on preparation and compounding of hydrolyzed protein gypsum retarder

作　　者：吴开胜[1] 王沁芳 季亚军[1] WU Kaisheng;WANG Qinfang;JI Yajun(Jiangsu Nigao Technology Co.Ltd.,Changzhou 213141,China;Changzhou Construction Research Institute Group Co.Ltd.,Changzhou 213001,China)

机构地区：[1]江苏尼高科技有限公司,江苏常州213141 [2]常州市建筑科学研究院集团股份有限公司,江苏常州213001

出　　处：《新型建筑材料》2023年第5期82-84,共3页New Building Materials

摘　　要：通过采用酸溶液水解蛋白原料得到酸解蛋白溶液,经过喷雾干燥制备成水解蛋白石膏缓凝剂。将水解蛋白石膏缓凝剂与氨基三亚甲基膦酸(ATMP)、苹果酸复配,ATMP可延长初、终凝时间差,苹果酸可延长凝结时间,经过对比确定水解蛋白石膏缓凝剂、ATMP、苹果酸按7∶1∶2的质量比进行复配时,制备的石膏缓凝剂具备缓凝效率高、对石膏强度负面影响小、适应性广等特点。Hydrolyzed protein gypsum retarder is prepared by hydrolyzing protein raw materials with acid solution to obtain acid hydrolyzed protein solution,which is dried by spray.Hydrolyzed protein gypsum retarder is compounded with ATMP and malic acid.ATMP can extend the initial setting time and final setting time interval,and malic acid can extend the setting time.Through comparison,it is determined that when hydrolyzed protein gypsum retarder,ATMP and malic acid are compounded at a ratio of 7∶1∶2,the prepared gypsum retarder has the characteristics of high retarding efficiency,small negative impact on gypsum strength,and wide adaptability.

关 键 词：水解蛋白 缓凝剂 ATMP 苹果酸 

分 类 号：TU528.042.3[建筑科学—建筑技术科学]