【摘要】 本文利用蓝皮固体废弃物为原料,研制一种新型高效减水剂,并以甲醛对氨基酸减水剂进行接枝改性。测量了蓝湿皮屑物理化指标,考察了料液比、水解时间、接枝时间、酸度、参量等合成条件对减水剂性能的影响。结果显示,新型高效减水剂制备最佳条件为:0.1 mol/L硫酸,料液比15∶100,0.3 MPa、115℃条件下水解4小时,60~80℃甲醛接枝1小时。更多还原

【Abstract】 This paper developed a new type superplasticizer using blue pelt noxious waste as material, and the amino acid superplasticizer was grafted by formaldehyde. The wet blue pelt leather scrap physicochemical indexes were measured, and the solid-liquid ratio, hydrolysis time and grafted time, acidity and parameter on the performance of superplasticizer were investigated.The results showed that the optimum condition of the new type superplasticizer was as followes: 0.1mol/L sulphuric acid, solid-liquid ratio 15∶100,hydrolyze 4 hours in the condition of 0.3 MPa and115℃,and grafted by formaldehyde 1 hour in the condition of 60~80℃.更多还原