Mbere ya byose ,.abantu benshi bafatanijekurwanya diaphragm ni firime ya plastike.Mu rwego rwibicuruzwa bya pulasitike, mubisanzwe tuvuga ibicuruzwa bya pulasitike binini bifite uburebure buri munsi ya mm 0.2 nka firime ya plastike, abafite umubyimba uri hagati ya 0.2 na 0.7 mm nkimpapuro za plastike naho abafite umubyimba urenga mm 0.7 nkibisahani.Multifayeri co-extrusion resistance diaphragm igomba kugira imikorere ya bariyeri.Inzitizi hano yerekeza ku bushobozi bwo gukingira ibicuruzwa bya pulasitike (kontineri, firime) kurwanya imyuka ya molekile ntoya n'impumuro.Mubisanzwe dukoresha gaze ya gaze kugirango dupime ibicuruzwa bya plastiki.PE, PP nibindi bikoresho bya plastiki rusange bifite agaciro kanini gazi ya gazi, ni ukuvuga ko gaze ya gaze ikennye, mugihe PA, PVDC, EVOH nibindi bikoresho bya resin bifite agaciro gake gazi ya gaze kuruta plastiki rusange, kandi gaze ni nziza.Kubwibyo, mubisanzwe twitafirime ya coextrusionkirimo byibura ibikoresho bimwe bya resin ya PA, PVDC na EVOH nkibice byinshi bya coextrusion birwanya diaphragm.PE, PA, TIE, EVOH nibindi bisigazwa birashobora gukoreshwa mugupakira vacuum ibikomoka kumata, jam, ibikomoka ku nyama, nibindi.
Multilayer bafatanije gusohora firimeahanini bafata imiterere ya ABCBA5 igereranya imiterere, hamwe na PA cyangwa EVOH nkurwego rwa bariyeri na polyethylene nkikimenyetso cya termal.Ibisigarira bifata bikoreshwa mugutandukanya inzitizi ya bariyeri idafitanye isano na kashe yubushyuhe.PA cyangwa EVOH yunvikana cyane nubushuhe, irinzwe na polyethylene, kandi imikorere yayo nziza ya ogisijeni ikora neza.Muri rusange, imiterere yaabantu benshi bafatanije gusohora filmbiterwa nibisabwa mumikorere ya firime.Mugihe cyo kuzuza ibisabwa mubikorwa, guhuza polymers zitandukanye birashobora kuba byujuje ibyangombwa bisabwa mubikoresho bipakira nka barrière, gufunga ubushyuhe, imbaraga z'umubiri, gucana umuriro, guhuza ibidukikije, guhuza ibidukikije no kongera igihe cyo kubika no kubika ubuzima.Urebye ibisabwa bikenewe, guhuza polymers eshanu birahagije.Ariko,gufatanya gusohora firimehamwe nibice birindwi, icyenda, cumi na kimwe cyangwa byinshi byakoreshejwe kumasoko bigatuma bigenda kandi bigatera imbere byihuse.Igishushanyo mbonera cya firime ifatanyirijwe hamwe irasabwa buhoro buhoro kugirango igere ku ntego nziza yo guhuza imikorere, ikoranabuhanga, ikiguzi, kurengera ibidukikije, umutekano no gutunganya kabiri.
1. Kugereranya ibiciro
Gukoresha polymer zihendutse hejuru aho gukoresha polymer zihenze birashobora kugabanya igiciro cyibicuruzwa kandi bifite imikorere yo gufunga ubushyuhe hamwe nubushyuhe bwinshi bwo kurwanya ionic chain polymers.Kubikoresho bifite bariyeri imwe hamwe nubushyuhe-kashe-ubushobozi-7-co-extrusion firime ya firime ifite ubukungu burenze firime 5.
2. Inzitizi
Gukoresha polymers ebyiri zitandukanye aho gukoresha polymer imwe kumurongo wa bariyeri birashobora kuzamura cyane imitungo yabyo.Kurugero, guhuza ibice bya EVOH nibikoresho bisanzwe bya nylon ntibishobora gusa gukomeza kwinjira muri PA, ariko kandi byongera imbaraga za EVOH no kunoza imitekerereze ya EVOH kuko igipande cya EVOH gishyizwe hagati yibice bibiri bya PA amine, bigatuma firime ifite bariyeri ndende, mugihe firime eshanu zifatanije hamwe ntizishobora kugerwaho.Igiciro cyiyongereye cyo kongeramo EVOH kirashobora kongerwaho kumikoreshereze yimiterere yose.Igipimo cyo gukwirakwiza ogisijeni ya firime eshanu zifatanije hamwe na 20% PA yubatswe ni 3.5, ariko mubihe bimwe, igipimo cyo kwanduza EVOH cyongewe muri firime irindwi ni 0.13.
3. Kurwanya ibice
Imiterere ya PA ifatanije na firime hamwe nibice byinshi irashobora kunozwa.Kurugero, ikoreshwa ryinyongera rifatika rishobora kunoza imikorere ya barrière ya firime mukongera ingaruka zamazi yo mumazi ya firime.Iyindi nyungu yabonetse icyarimwe nuko ishobora gutuma firime yoroshye, ikumva neza kandi ikarwanya neza.
Hamwe niterambere ryiterambere rya tekinoroji ya polymer, polymers nshya ifite imiterere yihariye yumubiri nubukanishi irashobora gukoreshwa cyane mugukenera ibikenerwa.Imikorere n'imiterere yaabantu benshi bafatanije gusohora firime ya substratebizagira ihinduka ryinshi nubukungu.Binyuze mu gushyira mu bikorwa no kunoza ibikoresho n’ikoranabuhanga bibumbabumbwa, bifatanije n’igishushanyo cyihariye kandi cyiza cy’imiterere ihuriweho, abakora amafilime bazagira uruhare rw’impinduramatwara mu gukurikirana no gutekereza ku bitekerezo byo gutandukanya imirimo yo gupakira, gushyira mu gaciro imiterere yo gupakira, na Gukwirakwiza inyungu zo gupakira.
Igihe cyo kohereza: Apr-17-2023