Chem.J.ChineseUniversities,2023,44(2),2022044420220444(1/8)CHEMICALJOURNALOFCHINESEUNIVERSITIES高等学校化学学报研究论文以TDI和IPDI为单体合成聚氨酯微胶囊及其摩擦学性能张瑞1,杨琦1,陈斯佳1,王立娟1,赵增辉1,崔宇超1,田宇轩2(1.中国石油大庆化工研究中心,大庆163714;2.东北石油大学化学化工学院,大庆163318)摘要分别以甲苯-2,4-二异氰酸酯(TDI)和异佛尔酮二异氰酸酯(IPDI)为单体,通过原位聚合法制备了离子液体@聚脲(PU)微胶囊,并与环氧树脂共混制得环氧树脂复合材料.利用扫描电子显微镜分析了微胶囊及复合材料的表面形貌,通过电子万能试验机和摩擦磨损试验机探究了微胶囊改性复合材料在不同情况下的力学性能和摩擦学性能,用傅里叶变换红外光谱对微胶囊进行表征.分析结果表明,以IPDI为单体合成的微胶囊摩擦学性能更加优异,并且随着微胶囊用量的增加,复合材料的摩擦学性能有明显提高,当微胶囊添加质量分数为20%时,含有微胶囊的复合材料具有较低的滑动摩擦系数并且摩擦面较光滑,这是由于在实验过程中,随着微胶囊壁材的破损,芯材离子液体被释放,形成了一层致密的润滑膜.关键词微胶囊;自润滑;智能材料;摩擦学性能中图分类号O648.2;TB332文献标志码Adoi:10.7503/cjcu20220444SynthesisandTribologicalPropertiesofPolyurethaneMicrocapsulesBasedonTDIandIPDIZHANGRui1,YANGQi1,CHENSijia1*,WANGLijuan1,ZHAOZenghui1,CUIYuchao1,TIANYuxuan2(1.DaqingPetrochemicalResearchCenter,PetroChina,Daqing163714,China;2.SchoolofChemistryandChemicalEngineering,NortheastPetroleumUniversity,Daqing163318,China)AbstractAsanewmaterialcategorybeingresearchedanddevelopedinpracticalapplication,self-lubricatingmaterialsstillhavetheabilitytoreducedegradation,providelubricationeffectandprolongtheservicelifeofmaterialsafterstructuraldamage.Inthispaper,ionicliquid@polyurethane(PU)microcapsuleswerepreparedbyin⁃situpolymerizationwithtoluenediisocynate(TDI)andisophoronediisocyanate(IPDI)asthemonomer,respec⁃tively,andepoxyresincompositeswerepreparedbyblendingionicliquid@PUwithepoxyresin.Thesurfacemorphologyofthecompositeandmicrocapsulewasanalyzedbyscanningelectronmicroscopy.Themechanicalandtribologicalpropertiesofthemicrocapsulemodifiedcompositewereinve...