Njengamanje kunezinhlobo ezimbili zokunamathela kwamahhala kwe-solvent kwama-composites aguqukayo aguqukayo, izingxenye ezizodwa neziphindwe kabili. Ingxenye eyodwa isetshenziselwa ikakhulukazi iphepha nama-nonwovens, angasebenza ngaphandle kokuxubana futhi ngaphandle kokulungisa isilinganiso. Izakhi ezimbili zisetshenziselwa amafilimu ahlukahlukene aguqukayo. Ngokusekelwe kokuhlangenwe nakho komuntu siqu, leli khasi lizochaza ukuthi lingasishintsha kanjani isilinganiso sezinto ezimbili ngezinhloso ezihlukile nokuthi zisebenza kanjani.
Okokuqala, inqubo yokuxubana ye-solvent-free laminders ye-solvent iklanyelwe.
Kunezici ezintathu ku-Ingxube Ratio Design ye-solvent-free lamin adhesive:
1. Zama ukufanisa isilinganiso sengxube yezakhi ze-A & B kusisindo.
Isilinganiso esihlanganisiwe se-A / b 'b' b 'b' shlazo sinethuba lokuba kwesisindo esifanayo. Isibonelo, u-X uyi-100a exutshwe ne-90B, Y ngu-100a no-50B. Ukushintshwa kwe-1% kwe-B kuzoholela ekushintsheni kwesisindo okungu-1.1% kwengxenye ye-X no-2% ka-Y. Ngokuvamile, ushintsho olungu-2% esilinganisweni sokuxubha samukelekile ngesikhathi sokukhiqiza, okuholela ekushintsheni kwesisindo kwe-2. 2 % no -4%. Uma isisindo sabo sihluka kakhulu, lokhu kungaholela ezihlokweni ezilandelayo:
(1) Izakhi ze-A / B zinzima ukuxuba kahle ukuze ingxube inomswakama ngokungafanele.
(2) Ngenxa yokungabikho kwengxenye b, ingcindezi ye-mixer iphansi kakhulu ukuqinisekisa ukuhamba okujwayelekile, okuholela ekuphambukeni kokunamathela kanye nokwehla kokukhiqizwa.
2. Kusondele ngangokunokwenzeka ekubonakaleni kwezakhi ze-A & B
Ukwehlisa ukubonakala kwengxenye ye-A & B endaweni yokushisa efanelekile, okungcono umphumela wokuxuba. Uma kucatshangelwa isenzo se-binder, i-viscosity yasekuqaleni yazo zombili izakhi ihluke kakhulu. Ukushisa kufanele kulawulwe ngokwahlukana ukuze kulungiswe inani le-viscous. Ukwandisa izinga lokushisa lengxenye yokuqala nge-viscosity ephezulu kwenza kube ngcono kwenye ingxenye, futhi kuyasiza kuzo zombili idivaysi yokuxubha kanye nepompo yokukhipha.
3. Ukukhulisa ukubekezelela kwengxube ye-A & B
Ngenxa yezinto ezithile zangaphandle ekulaneni, kufanele kube nokuphambuka okuthile ekuhlukaniseni isilinganiso. Ukunwebeka ukubekezelela kwesilinganiso sokuxubana kwe-A / B kuhlolwe ngempumelelo inxephezele umphumela omubi walokhu kuphambuka. Isibonelo, i-solvent ejwayelekile yokunamathela kwamahhala i-WD81118A / B yamabanga amasha avela kwinhlanganisela ejwayelekile ye-100: 75 kuya kunhlanganisela ye-100: 60 - 85, zombili ezamukelekayo zisetshenziswa futhi zitholwe kahle ngamakhasimende amaningi.
Okwesibili, umgomo kanye nendlela yokuxuba ukulungiswa kwezilinganiso
(1) kulungiswe ngokushisa okukhona kanye nomswakama
Ngokuvamile, okuqukethwe yi-NCO ku-Contencent A kuphakeme, ngenkathi ukusabela komoya kanye nomphunga kule filimu kungakwesokunxele. Kodwa-ke, phakathi nezinyanga zasehlobo, lapho kunomusi owengeziwe emoyeni futhi ifilimu inokuqukethwe komswakama okuphezulu, ingxenye yengxenye okufanele inyuswe ukuze idle umthamo owengeziwe, okuzokwenza lula ukusabela okuthe xaxa kokunamathela.
(2) kulungiswe ngezinto ezisetshenziselwa i-ink kanye ne-solvent
Ukupakisha okuningi okuguqukayo kuyifilimu ephrintiwe, inqubo yokuphrinta yasekhaya ine-solvent ink ukuphrinta ukuphrinta. Ku-solvent-based inks njengoba isengezo kuzoba ne-dilount kanye ne-retarder, bobabili bangama-polyurethane resin system, ekunamathisweni nokuphendula kwe-NCO kungadla i-NCO.
Sikhathazekile ngobumsulwa kanye nomswakama okuqukethwe kwe-solvent eyayisele. Bazohlala bethe xaxa noma ngaphansi kokuphrinta, futhi ama-hydrogen asalayo asebenzayo azodla i-NCO ethile. Uma izinsalela ezincanyana nezibuyiselwe emuva ziphezulu, singangezela ingxenye A ukuze athuthukise imiphumela.
(3) kulungiswe ngokudluliselwa kwe-aluminium
Izinto eziningi zokupakisha eziguquguqukayo manje sezivumelanisiwe, futhi umphumela wengcindezi ku-coating ungancishiswa ngokulungisa isilinganiso sokuxuba kwezakhi ze-A / B ukuze uzithathe, ngokunciphisa ukudluliselwa kwesimo se-aluminium nge-aluminiums nge-aluminiums ngama-aluminiums .
Isikhathi sePosi: APR-22-2021