Isifinyezo: Uma ufuna ukwenza inqubo yenhlanganisela engenazo izinyibilikisi usebenzisa kancane kancane, kubalulekile ukukhetha i-composite adhesive ngendlela efanele. Lesi sihloko sethula indlela yokukhetha i-composite adhesive engenazo izinyibilikisi efaneleke kakhulu ye-substrates nezakhiwo ezihlanganisiwe.
Ngokuvuthwa kanye nokuthandwa kobuchwepheshe be-composite obungenazo i-solvent, ama-substrate efilimu amancane angasetshenziswa kakhulu kwi-composite engenazo i-solvent. Ukuze usebenzise ubuchwepheshe be-composite obungenazo i-solvent ngokungaguquki, kubalulekile ukukhetha i-composite adhesive efanele. Ngezansi, ngokusekelwe kokuhlangenwe nakho kombhali, sizokwethula indlela yokukhetha i-adhesive efanelekile engenazo i-solvent.
Njengamanje, i-dry lamination kanye ne-solvent-free lamination ziyafana. Ngakho-ke, ukuze kuqiniswe ukusetshenziswa kobuchwepheshe be-solvent-free lamination, iphuzu lokuqala ukuqonda ngokugcwele isakhiwo somkhiqizo sefektri yokupakisha, ukuhlukanisa isakhiwo somkhiqizo ngokuningiliziwe, ukuhlukanisa izakhiwo zomkhiqizo ezingasetshenziswa ekuhlanganiseni i-solvent-free lamination, bese ukhetha i-glue efanele engena-solvent. Ngakho-ke, ungazikhetha kanjani ngempumelelo izinamathiseli ezingena-solvent? Qondanisa ngayinye ngayinye kulezi zici ezilandelayo.
- amandla okunamathela
Ngenxa yobunzima nokuhlukahluka kwezinto zokupakisha, ukuphathwa kwendawo yezingxenye nakho kuyahlukahluka kakhulu. Izinto zokupakisha ezivamile eziguquguqukayo nazo zinezici ezahlukene, njenge-PE, i-BOPP, i-PET, i-PA, i-CPP, i-VMPET, i-VMCPP, njll. Kukhona nezinye izinto ezingasetshenziswa kakhulu ekupakisheni okuguquguqukayo, njenge-PS, i-PVC, i-EVA, i-PT, i-PC, iphepha, njll. Ngakho-ke, inhlaka engenaso isinyibilikisi ekhethwe amabhizinisi kufanele inamathele kahle ezintweni zokupakisha eziningi eziguquguqukayo.
- Ukumelana nokushisa
Ukumelana nokushisa kuhlanganisa izici ezimbili. Esinye ukumelana nokushisa okuphezulu. Njengamanje, ukudla okuningi kudinga ukuhlanza ngokushisa okuphezulu, okunye kuhlanza ngokushisa okungu-80-100° C, kuyilapho ezinye zihlanzwa ngokubulala amagciwane ku-100-135° C. Isikhathi sokubulala amagciwane siyahlukahluka, kanti ezinye zidinga imizuzu eyi-10-20 kanti ezinye zidinga imizuzu engama-40. Ezinye zisahlanzwa nge-ethylene oxide. Izinto ezahlukene zinezindlela ezahlukene zokubulala amagciwane. Kodwa inhlaka ekhethiwe engenaso isinyibilikisi kumele ihlangabezane nalezi zidingo zokushisa okuphezulu. Isikhwama asikwazi ukuhlukanisa noma ukuguquka ngemva kokushisa okuphezulu. Ngaphezu kwalokho, izinto ezihlanzwe ngenhlaka engenaso isinyibilikisi kufanele zikwazi ukumelana namazinga okushisa aphezulu angama-200° C noma ngisho no-350° C ngokushesha. Uma lokhu kungenzeki, ukuvalwa kokushisa kwesikhwama kuthambekele ekuqhekekeni.
Okwesibili ukumelana nokushisa okuphansi, okwaziwa nangokuthi ukumelana nokubanda. Izinto eziningi zokupakisha ezithambile ziqukethe ukudla okuqandisiwe, okudinga izinti ezingenayo i-solvent ukuze zikwazi ukumelana nokushisa okuphansi. Emazingeni okushisa aphansi, izinto eziqiniswe yizinti ngokwazo zivame ukuqina, ukuphuka, ukuqhekeka, nokuqhekeka. Uma lezi zimo zenzeka, kubonisa ukuthi izinti ezikhethiwe azikwazi ukumelana nokushisa okuphansi.
Ngakho-ke, lapho ukhetha izinti ezingenayo i-solvent, ukuqonda okuningiliziwe kanye nokuhlolwa kokumelana nokushisa kuyadingeka.
3. Impilo Nokuphepha
Izinti ezinamathelayo ezingenasombululo ezisetshenziswa ekupakisheni kokudla nezidakamizwa kufanele zibe nokusebenza okuhle kokuhlanzeka nokuphepha. Imithetho eqinile ikhona emazweni ahlukahlukene emhlabeni jikelele. I-US FDA ihlukanisa izinti ezinamathelayo ezisetshenziswa ezintweni zokupakisha ezihlanganisiwe zokudla nezidakamizwa njengezithasiselo, ikhawulela izinto zokusetshenziswa ezisetshenziswa ekwenzeni izinti futhi ivimbele ukusetshenziswa kwezinto ezingafakwanga ohlwini oluvunyiwe lwezinto zokusetshenziswa, Futhi izinto ezihlanganisiwe ezenziwe ngale ngcina zihlukaniswa futhi zilinganiselwe ebangeni lazo lokushisa lokusetshenziswa, okuhlanganisa ukusetshenziswa kwezinga lokushisa legumbi, ukusetshenziswa kokubulala amagciwane okubilayo, ukusetshenziswa kokubulala amagciwane ngomusi okungu-122 ° C, noma ukusetshenziswa kokubulala amagciwane ngomusi okungaphezu kuka-135 ° C. Ngesikhathi esifanayo, izinto zokuhlola, izindlela zokuhlola, kanye nezinkomba zobuchwepheshe zezinto zokupakisha nazo zakhiwe. Kukhona futhi nemibandela efanele ku-GB9685 ejwayelekile yaseShayina. Ngakho-ke, izinti ezinamathelayo ezingenasombululo ezisetshenziselwa imikhiqizo yokuthumela kwamanye amazwe kumele zihambisane nemithetho yendawo.
4. Ukuhlangabezana nezidingo zezicelo ezikhethekile
Ukusetshenziswa kabanzi kwezinhlanganisela ezingenaso isinyibilikisi emkhakheni wokupakisha okuguquguqukayo kukhuthaze ukwanda kwazo ezinkambeni ezihlobene. Njengamanje, kunezindawo ezikhethekile lapho zisetshenziswe khona:
4.1 Ukupakisha ishidi le-PET elihlanganisiwe elingenaso isinyibilikisi
Amashidi e-PET enziwe kakhulu ngezinto ze-PET ezinobukhulu obungu-0.4mm noma ngaphezulu. Ngenxa yobukhulu nokuqina kwale nto, kuyadingeka ukukhetha ingcina engenaso isinyibilikisi enokunamathela okuphezulu kokuqala kanye ne-viscosity ephezulu ukuze kwenziwe le nto. Umkhiqizo oqediwe owenziwe ngalolu hlobo lwezinto ezihlanganisiwe ngokuvamile udinga ukwenziwa ngezimo ezahlukahlukene, ezinye zazo ezidinga ukunyatheliswa, ngakho-ke izidingo zamandla e-peel nazo ziphakeme kakhulu. I-WD8966 ekhiqizwe yi-Kangda New Materials inokunamathela okuphezulu kokuqala kanye nokumelana nokunyatheliswa, futhi isetshenziswe ngempumelelo ku-PET sheet composite.
4.2 Ukupakishwa kwendwangu engalukiwe engenazo izinyibilikisi
Izindwangu ezingalukiwe zisetshenziswa kabanzi futhi zinezinhlobo ezahlukahlukene. Ukusetshenziswa kwezindwangu ezingalukiwe ezindaweni ezingenazo izinyibilikisi kuncike kakhulu ekujiyeni kwendwangu engalukiwe kanye nobuningi bemicu. Uma sikhuluma ngokulinganiselwe, uma indwangu engalukiwe ilukhuni, kulapho inhlanganisela engenazo izinyibilikisi iba ngcono khona. Njengamanje, inhlaka yokuncibilikisa eshisayo ye-polyurethane esetshenziswa kakhulu ezindwangu ezingalukiwe ezingenazo izinyibilikisi.
Isikhathi sokuthunyelwe: Disemba 12-2023