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A platform for research: civil engineering, architecture and urbanism
Method for producing composite water reducing agent capable of realizing resource utilization
The invention discloses a method for producing a composite water reducing agent capable of realizing resource utilization, which specifically comprises the following steps: mixing isopentenol polyoxyethylene ether, acrylic acid, hydroxyethyl acrylate and water to obtain a mixed solution A, mixing acrylamide, dimethyl diallyl ammonium chloride, sodium methallyl sulfonate and water to obtain a mixed solution B, and mixing the mixed solution B with water to obtain the composite water reducing agent. The mixed solution A and the mixed solution B are mixed and heated, an initiator and a chain transfer agent are added for a reaction, and a modified water reducer solution is prepared; porous graphene is added into the modified water reducing agent solution, ball milling and filtering are conducted, sediment is washed with deionized water and then dried, the composite water reducing agent is prepared, and waste liquid generated in the process is reused for producing the modified water reducing agent solution. The prepared composite water reducing agent is good in water reducing effect, the mechanical property of a cement-based material can be effectively improved, waste liquid generated in production is recycled and reused, the preparation cost of the water reducing agent is reduced, and the situation that the environment is polluted by discharged waste liquid is avoided.
本发明公开了一种可实现资源化利用的生产复合型减水剂的方法，具体为：将异戊烯醇聚氧乙烯醚、丙烯酸、丙烯酸羟乙酯和水混合，制得混合液A，将丙烯酰胺、二甲基二烯丙基氯化铵、甲基丙烯磺酸钠和水混合，制得混合液B，将混合液A和混合液B混合升温，加入引发剂和链转移剂反应，制得改性减水剂溶液；向改性减水剂溶液中加入多孔石墨烯球磨、过滤，沉淀采用去离子水洗涤后干燥，制得复合型减水剂，上述过程中产生的废液重新用于生产改性减水剂溶液。本发明制得的复合型减水剂不仅减水效果好，且可有效提高水泥基材料的力学性能，而且本发明还将生产中产生的废液进行回收重新利用，不仅降低了减水剂的制备成本，还防止了废液排放污染环境。
Method for producing composite water reducing agent capable of realizing resource utilization
The invention discloses a method for producing a composite water reducing agent capable of realizing resource utilization, which specifically comprises the following steps: mixing isopentenol polyoxyethylene ether, acrylic acid, hydroxyethyl acrylate and water to obtain a mixed solution A, mixing acrylamide, dimethyl diallyl ammonium chloride, sodium methallyl sulfonate and water to obtain a mixed solution B, and mixing the mixed solution B with water to obtain the composite water reducing agent. The mixed solution A and the mixed solution B are mixed and heated, an initiator and a chain transfer agent are added for a reaction, and a modified water reducer solution is prepared; porous graphene is added into the modified water reducing agent solution, ball milling and filtering are conducted, sediment is washed with deionized water and then dried, the composite water reducing agent is prepared, and waste liquid generated in the process is reused for producing the modified water reducing agent solution. The prepared composite water reducing agent is good in water reducing effect, the mechanical property of a cement-based material can be effectively improved, waste liquid generated in production is recycled and reused, the preparation cost of the water reducing agent is reduced, and the situation that the environment is polluted by discharged waste liquid is avoided.
本发明公开了一种可实现资源化利用的生产复合型减水剂的方法，具体为：将异戊烯醇聚氧乙烯醚、丙烯酸、丙烯酸羟乙酯和水混合，制得混合液A，将丙烯酰胺、二甲基二烯丙基氯化铵、甲基丙烯磺酸钠和水混合，制得混合液B，将混合液A和混合液B混合升温，加入引发剂和链转移剂反应，制得改性减水剂溶液；向改性减水剂溶液中加入多孔石墨烯球磨、过滤，沉淀采用去离子水洗涤后干燥，制得复合型减水剂，上述过程中产生的废液重新用于生产改性减水剂溶液。本发明制得的复合型减水剂不仅减水效果好，且可有效提高水泥基材料的力学性能，而且本发明还将生产中产生的废液进行回收重新利用，不仅降低了减水剂的制备成本，还防止了废液排放污染环境。
Method for producing composite water reducing agent capable of realizing resource utilization
一种可实现资源化利用的生产复合型减水剂的方法
LIN MING (author) / LIN XIANXING (author)
2024-12-20
Patent
Electronic Resource
Chinese
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