三元共聚改性酚醛树脂的制备及性能研究的中期报告摘要：本研究以甲醛、苯酚、甲基丙烯酸丙酯、高锰酸钾为原料，采用三元共聚改性法制备了一种新型三元共聚改性酚醛树脂，并对其性能进行了研究。结果表明，制得的三元共聚改性酚醛树脂具有较好的耐热性、耐酸碱性和机械性能。其中，随着苯酚和甲基丙烯酸丙酯用量的增加，树脂的耐热性和机械性能有所提高，但耐酸碱性有所降低。在高锰酸钾存在下，甲醛与苯酚、甲基丙烯酸丙酯共聚制备的酚醛树脂，流动性好，残留甲醛含量较低，在高温下仍能保持稳定性，表现出良好的应用前景。关键词：三元共聚改性酚醛树脂；甲醛；苯酚；甲基丙烯酸丙酯；高锰酸钾；耐热性；耐酸碱性；机械性能。Abstract:Inthisstudy,anovelternarycopolymermodifiedphenol-formaldehyderesinwassynthesizedviaternarycopolymerizationmethodusingformaldehyde,phenol,methylmethacrylate,andpotassiumpermanganateasrawmaterials,anditspropertieswerestudied.Itwasfoundthatthesynthesizedternarycopolymermodifiedphenol-formaldehyderesinhadgoodheatresistance,acidandalkaliresistance,andmechanicalproperties.Withtheincreaseoftheamountofphenolandmethylmethacrylate,theheatresistanceandmechanicalpropertiesoftheresinwereimproved,buttheacidandalkaliresistancewasreduced.Inthepresenceofpotassiumpermanganate,thephenol-formaldehyderesincopolymerizedwithformaldehyde,phenol,andmethylmethacrylatehadgoodflowability,lowresidualformaldehydecontent,andcouldmaintainstabilityathightemperatures,showinggoodapplicationprospects.Keywords:ternarycopolymermodifiedphenol-formaldehyderesin;formaldehyde;phenol;methylmethacrylate;potassiumpermanganate;heatresistance;acidandalkaliresistance;mechanicalproperties.