Okwangoku kukho iintlobo ezimbini ze-adhesives ezingenasombululo kwii-composites eziguquguqukayo zokupakisha, izinto ezi-single kunye nezi-double. Le nxalenye isetyenziswa kakhulu kwiphepha nakwizinto ezingezizo ezolukiweyo, ezingasetyenziswa ngaphandle kokuxuba kunye nangaphandle kokulungisa umlinganiselo. Izinto ezi-dual zingasetyenziselwa iintlobo ngeentlobo zefilimu yokupakisha eguquguqukayo. Ngokusekelwe kumava obuqu, eli phepha liza kuchaza indlela yokutshintsha umlinganiselo wezinto ezimbini ngeenjongo ezahlukeneyo kunye nendlela esebenza ngayo.
Okokuqala, umgaqo wokuxuba umlinganiselo wee-laminated binders ezingenasombululo uyilwe.
Kukho iinkalo ezintathu kuyilo lomlinganiselo womxube weglue yokuncamathelisa engenasombululo:
1. Zama ukufanisa umlinganiselo womxube wezinto ze-A kunye ne-B nobunzima.
Umlinganiselo wokuxuba we-A / B unenzuzo yokuba nobunzima obufanayo. Umzekelo, i-X yi-100A exutywe ne-90B, i-Y yi-100A kunye ne-50B. Utshintsho lwe-1% lwe-B luya kubangela utshintsho lobunzima be-1.1% yecandelo le-A le-X kunye ne-2% ye-Y. Ngokubanzi, utshintsho lwe-2% kumlinganiselo wokuxuba luyamkeleka ngexesha lenkqubo yemveliso, nto leyo ekhokelela kutshintsho lobunzima be-2.2% kunye ne-4%. Ukuba ubunzima babo buyahluka kakhulu, oku kunokukhokelela kwezi meko zilandelayo:
(1) Izinto ze-A / B kunzima ukuzixuba kakuhle ukuze umxube ungabi manzi kangako.
(2) Ngenxa yokungabikho kwecandelo B, uxinzelelo lomxube luphantsi kakhulu ukuqinisekisa ukuhamba rhoqo, nto leyo ekhokelela ekuphambukeni kwe-adhesives kunye nokwehla kwemveliso.
2. Ngokusondeleyo kangangoko kwi-viscosity yeenxalenye ze-A kunye ne-B
Okukhona i-viscosity yecandelo A kunye ne-B iphantsi kubushushu obufanelekileyo, kokukhona isiphumo sokuxuba singcono. Xa ucinga ngesenzo se-binder, i-viscosity yokuqala yamacandelo omabini yahlukile kakhulu. Ubushushu kufuneka bulawulwe ngokwahlukeneyo ukuze kulungiswe ixabiso le-viscous. Ukunyusa ubushushu benxalenye yokuqala nge-viscosity ephezulu kuyenza isondele kwenye inxalenye, kwaye kuluncedo kwisixhobo sokulinganisa somxube kunye nepompo yokukhupha.
3. Ukwandisa ukunyamezelana komxube we-A kunye ne-B
Ngenxa yezinye izinto zangaphandle ekutshiseni, kufuneka kubekho ukuphambuka okuthile kumlinganiselo wokuxuba. Ukwandisa ukunyamezela komlinganiselo womxube we-A / B kunokuhlawula ngempumelelo isiphumo esibi sale kuphambuka. Umzekelo, i-common solvent free adhesive WD8118A / B yezinto ezintsha isusela kumxube oqhelekileyo we-100: 75 ukuya kumxube we-100: 60 - 85, zombini ezamkelekileyo xa zisetyenziswa kwaye zamkelwe kakuhle ngabathengi abaninzi.
Okwesibini, umgaqo kunye nendlela yokudibanisa uhlengahlengiso lomlinganiselo
(1) Ilungelelaniswe ubushushu kunye nokufuma okungqongileyo
Ngokubanzi, umxholo we-NCO kwicandelo A uphezulu, ngelixa impendulo yomoya kunye nomphunga kwifilimu ikwicala lasekhohlo. Nangona kunjalo, ngeenyanga zasehlotyeni, xa kukho umphunga omninzi emoyeni kwaye ifilimu inomxholo wokufuma ophezulu, icandelo A kufuneka lonyuswe ukuze kusetyenziswe umphunga ogqithisileyo, nto leyo eya kwenza kube lula ukuphendula okufanelekileyo kweglue.
(2) Ilungelelaniswe nezinto zeinki kunye nentsalela yesinyibilikisi
Eyona nto iguquguqukayo kukupakisha yifilimu eprintiweyo, inkqubo yokuprinta yasekhaya isetyenziswa kwi-inki ye-solvent gravure printing. Kwii-inki ezisekwe kwi-solvent njenge-additive kuya kubakho i-diluent kunye ne-retarder, zombini ziyinkqubo ye-polyurethane resin, kwi-adhesive ene-NCO reaction ingadla i-NCO ethile.
Sixhalabile ngobunyulu kunye nomxholo wokufuma we-solvent eseleyo. Ziya kuhlala ziprintiwe, kwaye i-hydrogen esebenzayo eseleyo iya kudla i-NCO ethile. Ukuba ii-residues ezincinci nezi-retarder ziphezulu, singongeza i-component A ukuphucula iziphumo.
(3) Ilungiselelwe ukudluliselwa kwe-aluminium
Izinto ezininzi zokupakisha eziguquguqukayo ngoku zenziwe i-aluminium, kwaye isiphumo soxinzelelo kwi-coating sinokuncitshiswa ngokulungelelanisa umlinganiselo wokuxuba wezinto ze-A / B ukuze zithambise, ngokubanzi ukwandisa i-B component ngokufanelekileyo kunye nokunciphisa ukudluliselwa kwe-aluminium ngendlela yokuncamathelisa okuphazamisekileyo.
Ixesha lokuthumela: Epreli-22-2021