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《反應(yīng)型聚氨酯膠黏劑的最近進(jìn)展與發(fā)展趨勢(shì)》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫。
1、萬方數(shù)據(jù)2007年第29卷第1期化學(xué)與黏合CHEMISTRYANDADHESl0N·33·SUMMAJ{比A’flONANDSPE(3ALCOMMENr11反應(yīng)型聚氨酯膠黏劑的最近進(jìn)展與發(fā)展趨勢(shì)MichaelKrebs博士(德國(guó)漢高公司(HenkelKGaA，40191Dti§seldorf，Germany))摘要：本文闡述了近期聚氨酯膠黏劑的技術(shù)創(chuàng)新和發(fā)展趨勢(shì)，如用于制備軟包裝材料的層壓聚氨酯膠黏劑，它同時(shí)具有低有害單體(芳香族異氰酸酯和胺)遷移率和“智能固化”的特點(diǎn)(固化潛伏期或者固化速率可調(diào))；基于表面鈍化固體異氰酸酯的潛伏型單組分體系為熱熔膠和水基聚氨酯分散體系開拓了新的發(fā)展空
2、間；新一代PurmehMieroEmissionl7膠黏劑中MDI單體的含量少于0．1％，從而顯著減少了使用過程中有毒異氰酸酯氣體的揮發(fā)，大大提高了其操作安全性。在適應(yīng)新工藝、新產(chǎn)品、以及日益嚴(yán)格的安全與環(huán)保要求下，聚氨酯膠黏劑又一次向我們展示了其獨(dú)特的生命力。關(guān)鍵詞：聚氨酯膠黏劑；層壓；軟包裝；潛伏反應(yīng)性；表面鈍化；MDI揮發(fā)；單體還原；產(chǎn)品管理員中圖分類號(hào)：TQ433．432文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1001—0017(2007)01—0033—06RecentAdvancesandTrendsinReactivePolyurethaneAdhesivesDr．MichaelKreh
3、s(HenkelKGaA，40191D婦seld09c，Germany)Abstract：Thepaperhighlightstechnicaladvancesandintroducesrecentinnovationssuchassmartcuringlaminatingadhesivesforflexiblepackagingwithlowmigrationratesofaromaticisocyanatesandamines．LatentreactiveODe—partsystemsonthebasisofSurfacedeactivatedsolidisocyanatesope
4、nupnewdimensionsforheatsettingadhesivesandwaterbornePUdispersions．ThenewgenerationofPurmeltMieroEmission7”adhesivescontainslessthan0．1％ofMDImonomer，therebydrasticallyreducingtheemissionofhazardousisocyanatevaporsduringprocessingandsettingasignificantlyimprovedtechnicalstandardinoccupationalsafet
5、y．Onceagain，polyurethaneadhesiveshavedemonstratedtheiruniqueabilitytoadapttonewprocess，product，safetyandenvironmentalrequirements．Keywords：Polyurethaneadhesives；lamination；flexiblepackaging；latentreactive；surfacedeactivated；MDIemission；monomerreduction；prod—uetstewardship．INTRoDUCTIONInthepastde
6、cadesreactivepolyurethaneadhe。siveshavefoundtheirwayintonearlyeveryapplicationareaduetotheiroutstandingproperties，uniqueversa-tilityandcostefficiency．Theycanbereadilytailoredtodisplayuniquecombinationsofproperties．Althoughthefirstcommercialproductswerealreadyintroducedsixtyyearsago，polyurethanea
7、dhesivesarestillalivelyandexcitingtechnologicalfieldwithahighinnovationpotential．1TWo—PARTPoLYURETHANEADHESIVESFoRFLEXIBLEPACKAGINGThelaminationofpackagingfilmsisoneofthemostimportantapplicationsforpolyurethaneadhesives．Thev
