I-aluminium enamathela ayinazo izici zefilimu yepulasitiki kuphela, kodwa futhi ngokwezinga elithile ithatha indawo ye-aluminium foil, idlala indima ekuthuthukiseni izinga lomkhiqizo, nezindleko eziphansi kakhulu. Ngakho-ke, isetshenziswa kakhulu ekufakweni kwamabhisikidi nokudla okulula. Kodwa-ke, ohlelweni lokukhiqiza, kuvame ukuba nenkinga yokudlulisa ungqimba lwe-aluminium, okuholela ekwehleni kwamandla okucwecwa kwefilimu eyinhlanganisela, okuholela ekwehleni kokusebenza komkhiqizo, futhi kuthinte kakhulu ikhwalithi yokuqukethwe kokupakisha. Yiziphi izizathu zokudluliswa kwe-aluminium enamathela? Yini okufanele inakwe ekusebenzeni kobuchwepheshe obuhlanganisiwe?
Kungani i-aluminium enamathela ijwayele ukubola?
Njengamanje, amafilimu e-aluminium asetshenziswa kakhulu yi-CPP aluminium plating film kanye ne-PET aluminium plating film, kanti izakhiwo zefilimu eziyinhlanganisela ehambisanayo zifaka i-OPP/CPP aluminium plating, i-PET/CPP aluminium plating, i-PET/PET aluminium, nokunye. Ezisetshenziswa ezingokoqobo, isici esiyinkinga kakhulu i-PET composite PET aluminium plating.
Isizathu esiyinhloko salokhu ukuthi njenge-substrate ye-aluminium plating, i-CPP ne-PET inomehluko omkhulu ezindaweni eziqinile. I-PET inokuqina okuphezulu, futhi yake yahlanganiswa nezinto ezibuye zibe nokuqina okukhulu,phakathi nenqubo yokuphulukisa yefilimu yokunamathisela, ukuba khona kokubumbana kungabangela kalula ukulimala ekunamatheleni kwe-aluminium yokugqoka, okuholela ekufudukeni kwe-aluminium yokugqoka. Ngaphezu kwalokho, umphumela we-permeation we-adhesive ngokwayo nawo unomthelela othile kuwo.
Izinyathelo zokuqapha ngesikhathi sokusebenza kwenqubo eyinhlanganisela
Ekusebenzeni kwezinqubo ezihlanganisiwe, kufanele kuqashelwe izici ezilandelayo:
(1) Khetha izinamathiselo ezifanele.Lapho ukuhlanganiswa kwe-aluminium ehlanganiswe, qaphela ukuthi ungasebenzisi izinto zokunamathisela ezine-viscosity ephansi, njengoba izinamathiselo ze-viscosity eziphansi zinesisindo esincane samangqamuzana namandla abuthakathaka e-intermolecular, okuholela ekusebenzeni okunamandla kwamangqamuzana futhi kujwayele ukulimaza ukunamathela kwawo ku-substrate ngokusebenzisa i-aluminium enamathela. ifilimu.
(2) Thuthukisa ukuthamba kwefilimu yokunamathisela.Indlela eqondile ukunciphisa inani le-ejenti elaphayo lapho ulungiselela ingcina yokusebenza, ukuze kuncishiswe izinga lokusabela kokuxhumanisa phakathi kwe-ejenti eyinhloko kanye ne-ejenti yokwelapha, ngaleyo ndlela kuncishiswe ukonakala kwefilimu yokunamathisela nokugcina ukuguquguquka okuhle nokunwebeka, okuyinto evumelana nokulawula ukudluliswa kwe-aluminium enamathela.
(3) Inani leglue elisetshenzisiwe kufanele lifaneleke.Uma inani le-adhesive esetshenzisiwe lincane kakhulu, ngokungangabazeki lizoholela ekusheshiseni okuphansi kwenhlanganisela nokuxebuka kalula; Kodwa uma inani le-adhesive esetshenzisiwe likhulu kakhulu, alilungile. Okokuqala, akukona ukonga. Okwesibili, inani elikhulu le-adhesive esetshenzisiwe kanye nesikhathi eside sokuphulukisa sinomthelela onamandla wokungena kungqimba lwe-aluminium yokucwenga. Ngakho-ke kufanele kukhethwe inani elifanele leglue.
(4) Lawula ukushuba ngendlela efanele. Lapho uvula i-aluminium plating,ukushuba kufanele kulawulwe kahle futhi kungabi phezulu kakhulu. Isizathu siwukuthi i-aluminium enamathelayo izokwelula ngaphansi kwe-tension, okuholela ekuguqulweni kwe-elastic. I-aluminium enamathela kulula ngokufanayo ukuyikhulula futhi ukunamathela kuncishisiwe.
(5) Isivinini sokuvuthwa.Eqinisweni, izinga lokushisa lokuphulukisa kufanele lenyuswe ukuze kusheshiswe isivinini sokuphulukisa, ukuze sikwazi ukwenza ama-molecule anamathelayo aqinise ngokushesha futhi anciphise umphumela wokulimala wokungena.
Izizathu eziyinhloko zokudluliswa kwe-aluminium plating
(I-1) Izimbangela zokucindezeleka kwangaphakathi ku-glue
Ngesikhathi senqubo yokwelapha yokushisa ephezulu ye-adhesive yezingxenye ezimbili, ukucindezeleka kwangaphakathi okukhiqizwa ukuphambana okusheshayo phakathi kwe-ejenti eyinhloko kanye ne-ejenti yokwelapha kubangela ukudluliswa kwe-aluminium plating. Lesi sizathu singaboniswa ngokuhlolwa okulula: uma inhlanganisela ye-aluminium eyinhlanganisela ingafakwa ekamelweni lokuphulukisa futhi yelashwa ekamelweni lokushisa (kuthatha izinsuku ezimbalwa ukwelapha ngokugcwele, ngaphandle kokubaluleka kokukhiqiza okungokoqobo, ukuhlolwa nje), noma yelashwa. ekamelweni lokushisa amahora ambalwa ngaphambi kokungena ekamelweni lokuphulukisa, ukwenzeka kokudluliswa kwe-aluminium kuzoncishiswa kakhulu noma kuqedwe.
Sithole ukuthi ukusebenzisa i-adhesive yokuqukethwe okuqinile engu-50% kumafilimu e-aluminium ayinhlanganisela, ngisho nokunamathela okuqinile okuphansi, kungaholela ekuziphatheni kokudlulisa okungcono kakhulu. Lokhu kungenxa yokuthi isakhiwo senethiwekhi esakhiwe yizinto ezinamathelayo eziqinile eziphansi ngesikhathi senqubo yokuxhumanisa asisiminyene njengesakhiwo senethiwekhi esakhiwe ngezinamatheliso eziqinile zokuqukethwe okuphezulu, futhi ukucindezeleka kwangaphakathi okukhiqizwa akufani kangako, okunganele ukuminyana nokufana. sebenzisa i-aluminium enamathela, ngaleyo ndlela unciphise noma uqede ukwenzeka kokudluliswa kwe-aluminium.
Ngaphandle komehluko omncane phakathi kwe-ejenti eyinhloko ne-adhesive evamile, i-ejenti elaphayo yokunamathela okujwayelekile kwe-aluminium yokunamathisela ngokuvamile ingaphansi kokunamathela okuvamile. Kukhona futhi inhloso yokunciphisa noma ukunciphisa ingcindezi yangaphakathi ekhiqizwe i-adhesive crosslinking ngesikhathi senqubo yokwelapha, ukuze kuncishiswe ukudluliswa kongqimba lwe-aluminium plating. Ngakho-ke ngokwami, ngikholelwa ukuthi indlela "yokusebenzisa ukuqinisa okusheshayo kwezinga lokushisa eliphezulu ukuxazulula ukudluliswa kwe-aluminium enamathela" ayinakwenzeka, kodwa kunalokho iyaphikisana. Abakhiqizi abaningi manje basebenzisa ama-adhesives asekelwe emanzini lapho amafilimu e-aluminium ehlanganisiwe ehlanganisiwe, angaphinde afakazelwe yizici zesakhiwo sokunamathela emanzini.
(2) Izizathu zokwelula ukwakheka kwamafilimu amancane
Esinye isenzakalo esisobala sokudluliswa kwe-aluminium plating ngokuvamile sitholakala kuzinhlanganisela zezendlalelo ezintathu, ikakhulukazi ezakhiweni ze-PET/VMPET/PE. Ngokuvamile, siqala ngokuhlanganisa i-PET/VMPET. Uma inhlanganisela kulolu ungqimba, i-aluminium enamathela ngokuvamile ayidluliswa. I-aluminium enamathela kuphela idluliswa ngemuva kokuthi ungqimba lwesithathu lwe-PE luyinhlanganisela. Ngokuhlola, sithole ukuthi lapho sicwecwa isampula eyinhlanganisela yezendlalelo ezintathu, uma inani elithile lokushuba lisetshenziswa kusampula (okungukuthi ukuqinisa ngokuzenzela isampula), ukumbozwa kwe-aluminium ngeke kudluliselwe. Uma ukungezwani kususiwe, i-aluminium enamathela izodluliswa ngokushesha. Lokhu kubonisa ukuthi ukuguqulwa kwe-shrinkage yefilimu ye-PE kukhiqiza umphumela ofana nokucindezeleka kwangaphakathi okukhiqizwa ngesikhathi senqubo yokuphulukisa yokunamathela. Ngakho-ke, lapho imikhiqizo eyinhlanganisela enesakhiwo esinezendlalelo ezintathu, ukuguqulwa kwe-tensile kwefilimu ye-PE kufanele kuncishiswe ngangokunokwenzeka ukuze kuncishiswe noma kuqedwe ukwenzeka kokudluliswa kwe-aluminium.
Isizathu esiyinhloko sokudluliswa kwe-aluminium plating kuseyi-deformation yefilimu, futhi isizathu sesibili ukunamathela. Ngesikhathi esifanayo, izakhiwo ze-aluminium plated zesaba kakhulu amanzi, ngisho noma iconsi lamanzi lingena ongqimbeni oluyinhlanganisela yefilimu ye-aluminium plated, kuzodala ukuhlukana okukhulu.
Isikhathi sokuthumela: Oct-28-2023
