文档介绍：河北工业大学工程硕士学位论文ThesisSubmittedtoHebeiUniversityofTechnologyforTheMasterofEngineeringDegreeofChemicalEngineeringSTUDYONPREPARATIONOFWATER-BORNEPOLYURETHANEADHESIVESANDTHEPROPERTIESOFTHEIRFILMSByLiLinSupervisor:ProfessorQuXiongweiSeniorEngineerDingBinghaiOctober2011i水性聚氨酯胶粘剂的制备与性能研究ii河北工业大学工程硕士学位论文水性聚氨酯胶粘剂的制备与性能研究摘要采用预聚体法合成技术聚合制备了水性聚氨酯胶粘剂。以聚醚多元醇、异氰酸酯为主要原料,合成预聚体,加入1,4-丁二醇为亲水扩链剂制得预聚体,聚氧化丙烯三醇与顺丁烯二酸酐反应制成半酯,上述改性预聚体经半酯改性制得改性预聚体,再经NaOH中和、乳化改性预聚体,制得水性聚氨酯胶粘剂。本文讨论了预聚体主链结构、异氰酸酯含量、成盐剂用量等对水性聚氨酯胶粘剂性能的影响。研究发现,在预聚体主链上引入适量的酯基聚合物,能显著提高产品的机械性能。随着酯基聚合物加入量的增加,产品的拉伸强度显著增大,但加入量过大(酯/醚摩尔比1/),其拉伸强度反而下降。所研制最佳水性聚氨酯胶粘剂性能是:固含量为40%,粘度为8mPa·s/25oC,pH值为,成膜性优。关键词:水性聚氨酯胶粘剂,预聚体,聚醚多元醇,异氰酸酯iii水性聚氨酯胶粘剂的制备与性能研究StudyonPreparationofWater-,polyethyleneglycolsasmainrawmaterialsweresynthesizedtopolyurethaneprepolymers,with1,4-,isocyanatecontent,anddosageofsalt-formingagentontheadhesivefilms’propertieswasdiscussedforwater-,,withtheincreaseofestergrouppolymer,butmorethan1/(estergroup/ethergroup),-bornpolyurethanelatexweresolidcontent40%,viscosity8mPa·s/25oC,-:waterbornepolyurethaneadhesive,prepolymer,polyethyleneglyols,isocyanate,positioniv河北工业大学工程硕士学位论文目录第一章文献综述......................................................................................................................................-1-聚氨酯胶粘剂发展状况................................