Izinto zokupakisha eziguquguqukayo, ngokuvamile inezingqimba ezintathu, ezinhlanu, eziyisikhombisa, eziyisishiyagalolunye.Uyini umehluko phakathi kwezingqimba ezahlukene zamafilimu?Leli phepha ligxile ekuhlaziyeni, ukuze uthole ireferensi yakho.
Ukuqhathaniswa kwezingqimba ezi-5 nezingqimba ezi-3
Isendlalelo sokuvimbelaesakhiweni sezingqimba ezinhlanu ngokuvamile sisemoyeni, esiwuvikela emanzini emkhathini.Ngenxa yokuthi ungqimba lwesithiyo lungaphakathi, ezinye izinto zingasetshenziswa ukuthuthukisa kakhulu ukusebenza kwesithiyo.Inayiloni ingasetshenziswa kungqimba oluyisisekelo, ukuze isakhiwo se-5-layer ene-PE surface layer singabhekana nezinto eziningi ezifana nefilimu ye-PE futhi sithuthukise ikhono lenqubo.Ngaphezu kwalokho, iphrosesa ingasebenzisa umbala kungqimba olungaphandle ngaphandle kokuthinta isendlalelo esibophezelayo noma isendlalelo sokuvimbela.
Amafilimu amathathu anezingqimba, ikakhulukazi lawo asebenzisa inayiloni, ajwayele ukugoqa ngenxa yezakhiwo ezihlukene zomzimba ezakhiweni ezingalingani.Ngokwakheka kwezingqimba ezi-5, kuvame kakhulu ukusebenzisa ukwakheka kwe-symmetric noma eduze kwe-symmetric ukunciphisa ukugoqa.I-crimp esakhiweni esinezingqimba ezi-3 singalawulwa kuphela ngokusebenzisa i-copolymer enayiloni.Kusakhiwo esinezingqimba ezi-5, kuphela uma iphrosesa ingasebenzisa inayiloni 6 lapho ingakwazi khona ukuthola ungqimba lwenayiloni cishe ingxenye yogqinsi lwezendlalelo ezintathu.Lokhu konga izindleko zempahla eluhlaza ngenkathi kunikeza izici ezifanayo zokuvimbela kanye nokucutshungulwa okuthuthukisiwe.
Ukuqhathanisa phakathi kwesitezi sesi-7 nesitezi sesi-5
Amafilimu e-high barrier,EVOHivame ukusetshenziswa njengesendlalelo sokuvimbela ukufaka esikhundleni inayiloni.Nakuba i-EVOH inezindawo ezinhle kakhulu zokuvimbela umoya-mpilo lapho yomile, izowohloka ngokushesha uma imanzi.Ngakho-ke, kuvamile ukucindezela i-EVOH ibe yizingqimba ezimbili ze-PE kusakhiwo se-5-layer ukuvimbela umswakama.Kusakhiwo se-EVOH esinezingqimba ezingu-7, i-EVOH ingacindezelwa ibe izendlalelo ezimbili eziseduze ze-PE, bese ivikelwa ungqimba lwe-PE olungaphandle.Lokhu kuthuthukisa kakhulu ukumelana komoyampilo kukonke futhi kwenza uhlaka olunezingqimba eziyisi-7 lungangenwa kalula umswakama.
Ukuhlukana noma ukuklebhuka nakho kungaba yinkinga esakhiweni sezindaba ezinhlanu.Ukuthuthukiswa kwesakhiwo sezendlalelo ezingu-7 kuzokwenza ungqimba oluqinile lokuvimbela luhlukaniseke lube izendlalelo ezimbili ezifanayo ngokuxhuma izingqimba ezincane.Lokhu kugcina impahla yokuvimbela ngenkathi kwenza iphakheji imelana kakhulu nokuphuka noma ukuklebhuka.Ngaphezu kwalokho, uhlaka olunezendlalelo eziyisi-7 lwenza iphrosesa ukuthi iklebhule ungqimba lwangaphandle ukuze kuncishiswe izindleko zezinto ezingavuthiwe.Ama-polymer abiza kakhulu angasetshenziswa njengezendlalelo ezingaphezulu, kuyilapho ama-polymer ashibhile angashintsha iningi lezendlalelo zangaphambilini.
Ukuqhathanisa phakathi kwesitezi sesi-9 nesitezi sesi-7
Ngokuvamile, ingxenye yokuvimbela ifilimu ephezulu yokuvimbela ithatha izingqimba ezinhlanu esakhiweni.Ngenxa yenqubekelaphambili kubuchwepheshe be-polymer nokucubungula, iphesenti lokujiya okuphelele kwale ngxenye kuso sonke isakhiwo lihlala lincipha, kodwa ukusebenza okufanayo kwesithiyo kuyagcinwa.
Kodwa-ke, kusadingeka ukugcina ukushuba okuphelele kwefilimu.Kusukela ngezendlalelo ezingu-7 kuye kwezingu-9, abacubungulayo bangathola ukusebenza kahle kakhulu komshini, ukubukeka nokusebenza kwezindleko.Kumafilimu esithiyo esiphezulu, ukuguquguquka okwengeziwe okunikezwa umugqa we-7-layer noma 9-layer extrusion kungaba mkhulu.Izindleko ezikhuphukile zokuthenga ulayini we-7-layer noma 9-layer extrusion ingaba nesikhathi sokukhokha esingaphansi konyaka owodwa uma kuqhathaniswa nolayini wokukhiqiza wezendlalelo ezi-5.
Isikhathi sokuthumela: Mar-05-2021