Abstract:Uma ufuna ukwenza inqubo yenhlanganisela engancibiliki usebenzisa kancane, kubalulekile ukukhetha ingcina eyinhlanganisela ngendlela efanele.Le ndatshana yethula indlela yokukhetha ingcina eyinhlanganisela ye-solvent efanelekile kakhulu yama-substrates ayinhlanganisela nezakhiwo.
Ngokuvuthwa nokuduma kobuchwepheshe obuhlanganisiwe obungancibiliki, ama-substrates amafilimu amancanyana amaningi angasetshenziselwa inhlanganisela engancibiliki.Ukuze usebenzise ubuchwepheshe benhlanganisela engancibiliki ngokuzinza, kubalulekile ukukhetha ingcina eyinhlanganisela efanele.Ngezansi, ngokusekelwe kokuhlangenwe nakho kombhali, sizokwethula indlela yokukhetha ingcina efanelekile engancibiliki.
Njengamanje, i-lamination eyomile kanye ne-solvent-free lamination kuhlangene.Ngakho-ke, ukuze kuzinziswe ukusetshenziswa kobuchwepheshe be-lamination obungenayo i-solvent-free, iphuzu lokuqala ukuqonda ngokugcwele isakhiwo somkhiqizo wefektri yokupakisha, ukuhlukanisa ukwakheka komkhiqizo ngokuningiliziwe, ukuhlukanisa izakhiwo zomkhiqizo ezingasetshenziselwa ukukhishwa kwe-solvent-free, futhi bese ukhetha ingcina efanele engena-solvent.Ngakho-ke, ungakhetha kanjani ngempumelelo ama-adhesives-free-adhesives?Qondanisa ngayinye ngayinye kulezi zici ezilandelayo.
- amandla okunamathela
Ngenxa yobunkimbinkimbi nokuhlukahluka kwezinto zokupakisha, ukwelashwa okungaphezulu kwama-substrates nakho kuyahluka kakhulu.Izinto zokupakisha eziguquguqukayo ezivamile nazo zinezici ezihlukile, njenge-PE, BOPP, PET, PA, CPP, VMPET, VMCPP, njll. Kukhona nezinye izinto ezingavamile ukusetshenziswa emaphaketheni aguquguqukayo, njenge-PS, PVC, EVA, PT. , PC, iphepha, njll
- Ukumelana nezinga lokushisa
Ukumelana nezinga lokushisa kuhlanganisa izici ezimbili.Enye iwukumelana nezinga lokushisa eliphezulu.Njengamanje, ukudla okuningi kudinga ukwenziwa inzalo yokushisa okuphezulu, okunye kuhlanjululwa ku-80-100.° C, kuyilapho abanye benziwa inzalo ku-100-135° C. Isikhathi sokuvala inzalo siyahluka, okunye kudinga imizuzu eyi-10-20 kanti okunye kudinga imizuzu engama-40.Ezinye zisahlanzwa nge-ethylene oxide.Izinto ezihlukene zinezindlela ezihlukene zokuvala inzalo.Kodwa i-adhesive ekhethiwe engena-solvent kufanele ihlangabezane nalezi zidingo zokushisa okuphezulu.Isikhwama asikwazi ukubola noma ukonakala ngemva kwezinga lokushisa eliphezulu.Ngaphezu kwalokho, izinto ezilashwe nge-adhesive-free adhesive kufanele zikwazi ukumelana namazinga okushisa aphezulu angama-200.° C noma ngisho 350° C ngokushesha.Uma lokhu kungeke kufezwe, ukuvala ukushisa kwesikhwama kujwayeleke ukuthi kube ne-delamination.
Okwesibili ukumelana nezinga lokushisa eliphansi, okwaziwa nangokuthi ukumelana nokuqandisa.Izinto eziningi zokupakisha ezithambile ziqukethe ukudla okufriziwe, okudinga izinto zokunamathela ezingenancibiliki ukuze zikwazi ukumelana namazinga okushisa aphansi.Emazingeni okushisa aphansi, izinto eziqiniswa yizinamatheliso ngokwazo zijwayele ukuba lukhuni, zibe brittleness, delamination, kanye nokuphuka.Uma lezi zenzakalo zenzeka, kubonisa ukuthi izinamathiselo ezikhethiwe azikwazi ukumelana namazinga okushisa aphansi.
Ngakho-ke, lapho ukhetha ama-adhesive-free adhesives, ukuqonda okuningiliziwe nokuhlolwa kokumelana nokushisa kuyadingeka.
3.Impilo Nokuphepha
Izinamatheliso ezingancibilikiyo ezisetshenziswa ekufakweni kokudla nezidakamizwa kufanele zibe nokuhlanzeka okuhle nokusebenza kokuphepha.Imithetho eqinile iyasebenza emazweni ahlukahlukene emhlabeni jikelele.I-US FDA ihlukanisa izinto ezinamathelayo ezisetshenziswa ezintweni zokupakisha eziyinhlanganisela zokudla nezidakamizwa njengezithasiselo, ikhawulela izinto ezingavuthiwe ezisetshenziselwa ukwenza izinto ezinamathelayo futhi ivimbela ukusetshenziswa kwezinto ezingafakwanga ohlwini oluvunyiwe lwezinto zokusetshenziswa, Kanye nezinto eziyinhlanganisela ezenziwe ngalokhu. izinto ezinamathelayo zihlukaniswa futhi zikhawulelwe ebangeni lawo lokushisa elisetshenziswayo, okuhlanganisa ukusetshenziswa kwezinga lokushisa legumbi, ukusetshenziswa kokubulala amagciwane abilayo, ukusetshenziswa kokubulala inzalo okushisayo okungu-122 ° C, noma 135 ° C nangaphezulu kokusetshenziswa kokukhipha inzalo okushisayo.Ngesikhathi esifanayo, izinto zokuhlola, izindlela zokuhlola, nezinkomba zobuchwepheshe zezinto zokupakisha nazo ziyakhiwa.Kukhona nezinhlinzeko ezifanele kanye nemikhawulo ku-GB9685 ejwayelekile yaseShayina.Ngakho-ke, izinto ezinamathelayo ezingancibilikiyo ezisetshenziselwa imikhiqizo yokuthekelisa yohwebo lwangaphandle kufanele zihambisane nemithetho yendawo.
4.Ukuhlangabezana nezidingo zezicelo ezikhethekile
Ukusetshenziswa okusabalele kwezinhlanganisela ezingancibilikiyo emkhakheni wamaphakheji aguquguqukayo kukhuthaze ukunwetshwa kwazo kuzinkambu ezihlobene.Njengamanje, kunezindawo ezikhethekile lapho zisetshenziswe khona:
4.1 I-solvent yamahhala ye-PET sheet packageing
Amashidi e-PET enziwe ikakhulukazi ngezinto ze-PET ezinogqinsi oluyi-0.4mm noma ngaphezulu.Ngenxa yokuqina nokuqina kwalesi sici, kuyadingeka ukukhetha ingcina engena-solvent ene-adhesion ephezulu yokuqala kanye ne-viscosity ukwenza le nto.Umkhiqizo oqediwe owenziwe ngalolu hlobo lwezinto ezihlanganisiwe ngokuvamile udinga ukwenziwa ubujamo obuhlukahlukene, ezinye zazo ezidinga ukugxivizwa, ngakho izidingo zamandla ekhasi nazo ziphakeme kakhulu.I-WD8966 ekhiqizwe i-Kangda New Materials inokunamathela okuphezulu kokuqala nokumelana nokunyathela, futhi isetshenziswe ngempumelelo ku-PET sheet sheet.
4.2 I-solvent yamahhala yokupakishwa kwendwangu engalukiwe
Izindwangu ezingalukiwe zisetshenziswa kakhulu futhi zinezinhlobo ezahlukene.Ukusetshenziswa kwezindwangu ezingezona ezilukiwe ezindaweni ezingenazo i-solvent ikakhulukazi kuncike ebukhulu bendwangu engalukiwe kanye nokuminyana kwemicu.Uma kuqhathaniswa, ukujiya kwendwangu engalukiwe kwenza kube ngcono ukuhlanganisa okungancibiliki.Njengamanje, ingxenye eyodwa ye-polyurethane hot melt adhesive isetshenziselwa kakhulu izindwangu ezingezona ezilukiwe ezingancibilikisiwe.
Isikhathi sokuthumela: Dec-12-2023