微波作用下聚羧酸系高效减水剂的合成及其性能研究 Synthesis and its performance of polycarboxylic superplasticizer under microwave-irradiation.pdfVIP
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微波作用下聚羧酸系高效减水剂的合成及其性能研究 Synthesis and its performance of polycarboxylic superplasticizer under microwave-irradiation
NUiq 新癯。壶巍豁拇 全国中文核心期刊 微波作用下聚羧酸系高效蹴7.1C,,LIDa 舍成及其Ⅱ生链研穷 张林1,李彦青:,李利军2蔡卓3,孑L红星2 (1.声西工学院£木建筑[程系,广西柳州545006; 2.广询工学院生物与化学工程系,广西柳州545006; 3.广西大学化学与化工学院,广西南宁530004) 摘要:在微波作用下,以聚乙=醇一1000、丙烯酸和甲摹丙烯磺酸钠为丰要原料合成聚羧酸减水剂,通过单因素试验,得出了最 佳合成条件,而且整个工艺周期仅为3.5h,与现有工艺相比效率显著提高,充分显示了微波作用在合成中的优势。该工艺合成的聚 羧酸减水剂在掺量为0.5%、0.75%和1.O%时,砂浆减水率分别达到31.5%、41.1%及44.8%。 关键词:聚羧酸岛效减水剂;微波辐射:减水率 中图分类号:TU582.042.2文献标识码:A 文章编号:Z001—702X(2010)09—0045-04 and its of undermicrowave-irradiation Synthesisperformancepolycarboxylic superplasticizer ZHANGLinu,u I Zhu03,KONG Yanqin92,LILqun2,CA Hongxin92 (1.CivilConstruction of EngineeringDepartment,GuangxiUniversityTechnology。L/uzhou545006,Guangxi·China: of andChemical of 2.DepartmentBiologieal Engineering,GuangxiUniversityTechnology,Liuzhou545006,Guangxi·China; 3.Schoolof andChemical Chemistry Engineering,GuangxiUniversity,Nanning530004,Guangxi,China) Abstract:The with acidandsodium sulfonate polycarboxylicsuperplasticizerwa$synthesizedmacrogol1000,acrylic methallyl undermicrowave—irradiation conditionswereobtained 0.5%,0.75%and conditions.Optimum byMon—agentExperimentations.When 1.O%SAFWaSadded,thewaterreductionratewa陀31.5%,41.1%and44.8%.Thetimeofreactionlastedfor3.5hours,which only showedthatmicrowaveirradiationhadobviouseffecton thetime ofthe
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