硅酸盐通报2024，Vol.43Issue(11)：3958-3967,10.
氨基三亚甲基膦酸和磷酸二氢钾改性发泡硫氧镁水泥
Amino Trimethylene Phosphonic Acid and Potassium Dihydrogen Phosphate Modified Foamed Magnesium Oxysulfate Cement
摘要
Abstract
Foamed magnesium oxysulfate cement(FMOSC)was prepared by using organophosphonic acid-amino trimethylene phosphonic acid(ATMP)as a modifier,and the effects on dry density,compressive strength,and water resistance of FMOSC were investigated when ATMP was modified alone and when ATMP was modified in combination with potassium dihydrogen phosphate(KDP),respectively.The physical phase composition and microscopic morphology of FMOSC before and after modification were analyzed by a variety of microscopic tests,analyses and characterizations,such as pore structure distribution,XRD,FT-IR,TG-DSC and FESEM.The results show that the compound modification is most effective at m(ATMP)∶m(KDP)=1∶1 with a total dosage of 1.00%(mass fraction,same as below)compared to ATMP single modification,and it has a significant enhancement on the water resistance and pore structure of FMOSC.The addition of the modifier changes the physical phase composition of FMOSC and generates a new strength phase 5Mg(OH)2·MgSO4·7H2O(5·1·7 phase).关键词
发泡硫氧镁水泥/5·1·7相/孔结构/耐水性能/抗压强度/改性剂Key words
foamed magnesium oxysulfate cement/5·1·7 phase/pore structure/water resistance/compressive strength/modifier分类
化学化工引用本文复制引用
张玉婷,侯占利,乔紫璇,付新宇,杨红健,刘晓莉..氨基三亚甲基膦酸和磷酸二氢钾改性发泡硫氧镁水泥[J].硅酸盐通报,2024,43(11):3958-3967,10.基金项目
天津能源集团津安热电有限公司高性能板房建筑热工性能研究应用项目(JARD202307140118) （JARD202307140118）
