第4期第33卷第4期2023年8月皮革科学与工程LEATHERSCIENCEANDENGINEERING33(4):11-16Aug.2023doi:10.19677/j.issn.1004-7964.2023.04.003热机械辅助交联改性制备豆粕胶粘剂孙柯璇1，2，崔玉明1，陈慧1，2*，李飞3，袁鸿昌4（1.四川大学轻工科学与工程学院，四川成都610065；2.四川大学制革清洁技术国家工程实验室，四川成都610065；3.大竹绿源木业科技有限公司，四川大竹635100；4.贵州省铜仁第一中学，贵州铜仁554300）摘要：以豆粕为原料，经热机械螺旋挤压法预处理后，用戊二醛对其进行交联改性，考察了pH、温度及戊二醛用量对胶粘剂胶合强度的影响，并对最佳参数制备的胶粘剂进行了性能表征。结果表明：螺旋挤压处理温度140℃、pH8、温度50℃、戊二醛用量1.0%（豆粕质量为基准）时，豆粕胶的干、湿态胶合强度均最佳，分别为3.92和1.41MPa，达到II类胶合板的国家标准。与未改性的豆粕胶相比，戊二醛改性后的豆粕胶粘剂固含量、黏度及热稳定性均显著提高。关键词：豆粕；螺旋挤压；交联改性；胶合强度中图分类号：TS234.1文献标志码：APreparationofSoybeanMealAdhesivebyThermomechanicalAssistedCrosslinkingModificationSUNKexuan1,2,CUIYuming1,CHENHui1,2*,LIFei3,YUANHongchang4(1.CollegeofBiomassScienceandEngineering,SichuanUniversity,Chengdu610065,China;2.NationalEngineeringLaboratoryforCleanTechnologyofLeatherManufacture,SichuanUniversity,Chengdu610065,China;3.DazhuLuyuanWoodIndustryTechnologyCo.Ltd,Dazhu635100,China;4.GuizhouTongrenNo.1MiddleSchool,Tongren554300,China)Abstract:Soybeanmealwasmodifiedbythethermomechanicalspiralextrusionmethod,andthencrosslinkedwithglutaraldehydetoobtainthesoybeanmealadhesive.TheeffectsofpH,temperature,andglutaraldehydecontentontheglueshearstrengthwereinvestigated,andthepropertiesofthepreparedsoybeanmealadhesivewerecharacterized.Theresultsshowedthat,whenthescrewextrusiontemperaturewaskeptat140℃,andthereactionpH,temperature,andglutaraldehydecontentwere8,50℃and1.0%(basedontheweightofsoybeanmeal),respectively,theobtainedsoybeanmealglueexhibited3.92MPaofdryglueshearstrengthand1.41MPaofwetglueshearstrength,whichcanmeetthenationalstandardofClassIIplywood.Meanwhile,comparedwiththeunmodifiedsoybeanmealglue,theglutarald...
