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当前位置:首页 > 行业资料 > 冶金工业 > 丙烯酸丙烯酸羟丙酯共聚物阻垢剂的合成及性能研究王新刚
:1000-5811(2004)02-0019-05/王新刚,王鸿儒,乔永洛(, 712081) :以水为介质,丙烯酸、丙烯酸羟丙酯为原料合成了丙烯酸(AA)/丙烯酸羟丙酯(HPA)共聚物阻垢分散剂,探讨了单体配比、引发剂用量、反应温度、反应时间等对共聚物阻垢性能的影响,得出了最佳合成条件,并采用静态阻垢法评价了共聚物的阻垢性能,结果表明该共聚物不仅具有良好的阻垢性能,而且对氧化铁有很好的分散性。:共聚物;阻垢剂;丙烯酸;丙烯酸羟丙酯:TQ314.24+5.9 :A0 ,、、,〔1~3〕。,,,。(AA)、(HPA),,,-,、、,。1 1.1 原料(AA),(HPA),,;,。1.2 共聚物的合成、、,,,,。,,2h,2~3h,。1.3 聚合物检测与结构表征1.3.1 ,[η]=3.73×10-4M0.66,3.73×10-40.66,[η],mL/g,M。1.3.2 :2003-11-04 :(1979-),,,,:№.2 Apr.2004Vol.22 JOURNALOFSHAANXIUNIVERSITYOFSCIENCE&TECHNOLOGY ·19·IR-440,KBr。1.4 共聚物阻垢性能的测定〔4〕1.4.1 Ca2+HCO3-,250mg/L(CaCO3),,1L,80℃,10h,,EDTA。1.4.2 Ca2+250mg/L(CaCO3),PO43-5.0mg/L,pH=9.0,。500mL,50℃,80℃,10h,,。1.5 分散氧化铁性能的测定〔5〕Ca2+150mg/L((CaCO3),Fe2+10mg/L,,pH=8.77,15min,50℃5h,,T(420nm)。2 2.1 共聚物IR谱图分析1∶5,,,,,,KBrIR-440,1。图1 丙烯酸-丙烯酸羟丙酯共聚物的红外谱图13400cm-1O-H,3100~3000cm-1,2800cm-1-CH2,1720cm-1,1460cm-1-CH3C-H,1200cm-1-CH2CH-CH2,1150cm-1C-O。、,。1、,-〔6〕,-。2.2 聚合条件对共聚物性能的影响2.2.1 85℃,8%(),4h,AAHPA,,15mg/L,,2。2,AA,,AA70%,;AA,。,AA70%(·20·22)。2.2.2 ,、,,AA∶HPA7∶3,85℃,4h,15mg/L,,3。3,8%,,8%,10%,6%~10%,12%。,,,,,,,8%~10%。2.2.3 ,、,AA∶HPA=7∶3,8%,4h15mg/L,4。,,,,。,,,。4,85℃,,85℃,85~90℃。2.2.4 5,,,3.5h,,3.5h。2.2.5 ,,。·21·2:/1 A(AA)/%B()/%C()/℃D()/h1658803.52709854.037510904.52 ABCD/%1111178.92122294.63133393.64212385.45223189.86231295.77313285.38321395.69332192.6K1267.1249.6270.2261.3K2270.9280272.6275.6∑=811.5K3273.5281.9268.7274.6A3B3C2D2 :AA∶HPA=75∶25,10%,85℃,4h。2.2.6 ,,,,。,3。3 T/%PBTCA64.8HEDP61.5T-22558.1B40051.3AA/HPA55.4 :15mg/L。3,AA/HPA,。2.2.7 4 、/%()T/%42585.332.3122686.140.5230096.855.6324394.368.6564486.370.2 4,2300,。·22·223 (1)AA/HPA:n(AA)∶n(HPA)=75∶25,10%,85℃,4h。,,,。(2)AA/HPA,,,、、,。〔1〕,.AMPS/AA〔J〕.,1998,15(3):275~277.〔2〕,./〔J〕.,1996,16(2):16~17.〔3〕Godlewski.Polymersforuseinwatertreatment〔P〕.US,4029577,1977,(6):14.〔4〕,,./2--2′-〔J〕.,1996,16(4):20~21.〔5〕,,,.〔J〕.,1995,15(3):14~17.〔6〕.()〔M〕.:,2000,356.ONTHESYNTHESISANDPERFORMANCEOFACRYLICACID-HYDROXYPROPYLACRYLATECOPOLYMERSCALEINHIBITORWANGXin-gang,WANGHong-ru,QIAOYong-luo(CollegeofResourceandEnvironment,ShaanxiUniversityofScience&Technology,Xianyang712081,China)Abstract:Thescaleinhibitoranddispersionagent,lowmolecularAA/AMPScopolymerissynthesizedinwa-tersolventbyusingacrylicacid(AA),2-hydroxypropylacrylate.Theeffectsofmolarradioofmonomer,massconcentrationofinitiator,reactiontemperatureandtimeonscaleinhibitioncapacityofcopolymerarediscussed.Theopticaloperatingconditionswasdetermined.Thecopolymerinhibitorobtainedisevaluatedforvariousinorganicsaltsprecipitates.Itisshownthatthiscopolymeriseffectiveoninhibitioncapacityanddis-persingabilitytoferricoxide.Keywords:copolymer;scaleinhibitor;acrylicacid;2-hydroxypropylacrylate·23·2:/
本文标题:丙烯酸丙烯酸羟丙酯共聚物阻垢剂的合成及性能研究王新刚
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