两性聚丙烯酰胺的合成与性能测试

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中图分类号：TE357.12 文献标志码：A 文章编号：2095-2945(2025)30-0064-04

Abstract:Thesynthesismethodofamphotericpolyacrylamidewasexplored,andsixperformanceindicatorsofit,namely solubility，saltesistanceviscoelastityonstanttmperatureshearviscosityparticlesizeandmolecularweight，weeested. Amphotericpolyacrylamidethickenersampleswithdiferentconcentrationswerepreparedinthelaboratoryusingthreemonomers, includingurea,sodiumhydroxideandAM,andperformance testswereconducted.Theresultsshowthatthesampleshowsgood solubilityand thickening，and the best solubilityisobtained when the sample concentrationis 0.4% ，andit can be completely disolvedinashorttime.Theaddionofsaltwillcausetheviscosityofthesamplesolutiontodecrease.However,whenthesalt concentrationreachesacertainvalue,thenumberofsulfonicacidgroupsinthepolymerwillincrease,whichwillincreasethe saltresistance of the polymer.At this time,theviscosityof the solution tends to be stable；whenthestressis 1Pa ，the material isinacricalstatewithviscousandelasticcharacteristics.Theaditionofsaltcanafecttheaverageparticlesizeof thickeners,and the interaction mechanisms between different salt cations and thickener solutions vary.

Keywords:amphotericpolyacrylamide；solubility；salttolerane;temperature-controlledvariable-shearviscosity；synthesis method

在油田的水力压裂作业中，利用产出水配制压裂液不仅能降低油田开发成本，而且还能解决产出水随意排放导致的污染问题。（剩余7703字）