Ukuhlola Izinto kanye Nezakhiwo Zamafilimu Avikelayo

Ifilimu yokuvikela i-aluminium iyifomula ethize yefilimu ye-polyethylene (PE) njenge-substrate, i-polyacrylic acid (ester) resin njengento eyinhloko ye-adhesive ezwela ukucindezela, ehlanganiswe nezithasiselo eziningana zokunamathela ngokusebenzisa i-coating, ukusika, ukupakisha nezinye izinqubo, ifilimu yokuzivikela ithambile, inamandla amahle okunamathela, kulula ukuyinamathisela, kulula ukuyicwecwa. Ukuzinza kwe-adhesive ezwela ukucindezela kuhle futhi ngeke kuthinte kabi indawo yomkhiqizo enamathiselwe.

Ububanzi bokufaka isicelo: Ikakhulukazi isetshenziselwa zonke izinhlobo zepulasitiki, ipuleti lokhuni (ishidi) lokuvikela indawo, njenge-PVC, i-PET, i-PC, ipuleti elinemibala emibili ye-PMMA, ibhodi le-UV legwebu, ingilazi, nezinye izindawo zamapuleti endaweni yokuthutha, isitoreji. , kanye nokucubungula, inqubo yokufaka ngaphandle kokulimala.

Isakhiwo nezinto ezibonakalayo zefilimu yokuzivikela

Ifilimu yokuzivikela ngokuvamile ifilimu yokuzivikela ye-polyacrylate, ifilimu yokuzivikela ye-polyacrylate yesakhiwo esiyisisekelo kusukela phezulu kuya phansi: ungqimba wokuhlukanisa, ungqimba wokunyathelisa, ifilimu, ungqimba olunamathelayo.

(1, isendlalelo sokuhlukanisa; 2, isendlalelo sokuphrinta; 3, ifilimu; 4, ungqimba olunamathelayo)

1. Ifilimu

Njengezinto zokusetshenziswa, ifilimu ngokuvamile yenziwe nge-polyethylene ephansi (PE) ne-polyvinyl chloride (PVC). Ukubunjwa kwe-Extrusion, ukubunjwa komjovo, nokubunjwa kokushaywa kungatholakala. Njengoba i-polyethylene ishibhile futhi inobungani bemvelo, i-90% yefilimu yenziwe nge-polyethylene, nenqubo yokubumba i-blow njengokugxila okuyinhloko. Kunezinhlobo eziningi ze-polyethylene ezinamaphoyinti ahlukene okuncibilika nokuminyana.

2. I-Colloid

Izici ze-colloid zinquma ukhiye wokuhle nokubi kwefilimu yokuzivikela. Ifilimu yokuzivikela esetshenziselwa ukunamathela okuzwela ukucindezela inezinhlobo ezimbili: i-adhesive polyacrylate esekelwe ku-solvent kanye ne-adhesive polyacrylate encibilikayo emanzini; banezici ezahlukene.

Ingcina ye-polyacrylate esekelwe ku-solvent

Ingcina ye-polyacrylate esekwe ku-solvent iyi-solvent ephilayo njengendlela yokuncibilikisa i-acrylic monomer; i-colloid isobala kakhulu, i-viscosity yokuqala iphansi kakhulu, futhi imelana kakhulu nokuguga kuze kube yiminyaka eyi-10 lapho itholakala ekukhanyeni kwe-ultraviolet; i-colloid nayo izophulukiswa kancane kancane. Ngemuva kokuthi ifilimu ihlanjululwe nge-corona, ukunamathela kwe-polyacrylate kungenziwa ngokuqondile ngaphandle kwe-primer. I-Polyacrylate adhesive iyinkimbinkimbi futhi ine-fluidity encane, ngakho-ke ukunamathela kwefilimu yokuzivikela kudlala kancane kancane; ngisho nangemva kokucindezelwa, ijeli nobuso obuzothunyelwa akukwazi ukuthintwa ngokugcwele. Ibekwe ezinsukwini ezingama-30 ~ 60 kamuva, izobe ixhumene ngokuphelele nobuso obuzothunyelwa ukuze kuzuzwe ukunamathela kokugcina, futhi ukunamathela kokugcina kuvame ukuba kukhulu kunokunamathela kokunamathela izikhathi ezi-2 ~ 3, ukunamathela kokugcina. ifilimu evikelayo, uma ifaneleka ekusikeni kwefekthri yebhodi, umsebenzisi wokugcina eklebhula ifilimu lapho kukhona Kungase kube nzima kakhulu noma kungenakuqedwa.

Ingcina ye-polyacrylate encibilika emanzini

Ingcina ye-polyacrylate encibilika emanzini isebenzisa amanzi njengendlela yokuncibilikisa i-acrylic monomer. Ibuye ibe nezici ze-adhesive-based polyacrylate adhesive, kodwa i-colloid kufanele igwenywe ukuze kuncishiswe ukuthintana nomhwamuko wamanzi futhi kuvimbele iglue esele. Amazwe asathuthuka ngokuvamile asebenzisa i-colloid ukuze akhiqize ifilimu evikelayo ngenxa yokuthi ingcina ye-polyacrylate encibilika emanzini ivumelana nemvelo futhi ayidingi izinto zokubuyisela i-solvent.

3. Izici ze-colloid

Ukunamathela

Kubhekisela esikhathini lapho ifilimu yokuvikela evela phezulu inamathiselwe emandleni adingekayo ukuze kucwecwe. Amandla okunamathela ahlobene nezinto okufanele zisetshenziswe, ingcindezi, isikhathi sokufaka isicelo, i-engeli, nezinga lokushisa lapho uxebula ifilimu. Ngokusho kwe-Coating Online, ngokuvamile, ngokunyuka kwesikhathi nokucindezela, amandla okunamathela nawo azokhuphuka; ukunamathela kwefilimu evikelayo kungakhuphuka kakhulu ukuze kuqinisekiswe ukuthi akukho okunamathelayo okusalayo lapho kudwengula ifilimu.Ngokuvamile, ukunamathela kukalwa ngokuhlolwa kwe-peeling ye-180-degree.

Ukubumbana

Ibhekisela emandleni e-colloid ngaphakathi, njengoba ifilimu evikelayo yokuhlangana kwe-colloid kufanele ibe phezulu kakhulu; uma kungenjalo, ekudwebeni ifilimu yokuzivikela, i-colloid izoqhekeka ngaphakathi, okuholela ekunamatheleni okusele. Ukulinganisa ukubumbana: Ifilimu yokuvikela izonanyathiselwa endaweni yensimbi engagqwali, futhi isisindo esithile sizobe silenga efilimini eyisivikelo ukuze kulinganiswe ukuthi singakanani isikhathi esidingekayo ukuze ukhiphe ifilimu evikelayo ngesisindo. Uma amandla okunamathela emakhulu kunamandla ahlangene, dwengula ifilimu evikelayo, futhi ama-molecule anamathelayo axhunywe phakathi kwesibopho azophulwa, okuholela ekunamatheleni okusele.

Ukunamathela

Lokhu kubhekisela emandleni okubopha phakathi kwe-adhesive nefilimu. Uma amandla okunamathela makhulu kunamandla okubumbana, uma ifilimu evikelayo isusiwe, isibopho phakathi kwama-adhesive molecule kanye nefilimu izophulwa, okuholela ekunamatheleni okusele.

Ukumelana ne-UV

I-Polyacrylate adhesive iyi-UV ukumelana, ifilimu yokuvikela enamathela e-polyacrylate esobala ene-UV stabilizer; alikwazi ukumelana ne-UV isikhathi esingafika ezinyangeni ezi-3 ~ 6. Ukusetshenziswa okujwayelekile kwemishini yokulingisa isimo sezulu ukuhlola amandla e-UV efilimu evikelayo ngokulungisa izinga lokushisa elishubile, kanye nokujiya ukuze kulingise ukuguquka kwesimo sezulu njalo emahoreni ama-3 omswakama ophezulu kanye namahora angu-7 emisebe ye-ultraviolet emjikelezweni wamahora angu-50 wokuhlola okulingana nokulingana nokubekwa ngaphandle kwenyanga eyodwa.