Umurongo wo gukurura PP/PE/PA/PETG/EVOH w'urupapuro rw'inzitizi nyinshi
Igipimo cy'ingenzi cya tekiniki
| Icyitegererezo cy'umurongo | Icyitegererezo cyo gusohora | Ubugari bw'ibicuruzwa | Ubunini bw'ibicuruzwa | Umusaruro wo gusohora igishushanyo |
| Uburyo bwo gukuramo ibice 7 hamwe | 120/75/50/60/75 | 800-1200mm | mm 0.2-0.5 | 500-600kg/isaha |
| Uburyo bwo gukuramo ibice 9 hamwe | 75/100/60/65/50/75/75 | 800-1200mm | 0.05-0.5mm | 700-800kg/isaha |
Icyitonderwa: Ibisobanuro bishobora guhinduka nta nteguza ibanje.
Uko isoko ry'ibikoresho byo gupakira EVOH rihagaze
Mu rwego rwo gupakira ibiryo mu buryo bukonje, abantu bakoreshaga ibikoresho by'icyuma cyangwa ikirahure nk'ibipfunyika kugira ngo bakure neza uburyo ibice bitandukanye bya gaze byinjira imbere no hanze kugira ngo barebe ko ibikubiye muri byo n'agaciro k'ibicuruzwa bihari. Kubera ko hari ibintu bitatu by'ingenzi bituma ibiryo byangirika: ibintu bya binyabuzima (uburyo bitera enzymes, nibindi), ibintu bya shimi (cyane cyane oxidation y'ibice by'ibiryo) n'ibintu bifatika (hygroscopic, kuma, nibindi). Ibi bintu bigira uruhare mu miterere y'ibidukikije nka ogisijeni, urumuri, ubushyuhe, ubushuhe, nibindi, bituma ibiryo byangirika. Kurinda kwangirika kw'ibiryo ahanini ni ukubuza ikwirakwira rya mikorobe mu biryo, gukumira oxidation y'ibice by'ibiryo na ogisijeni, no gukumira ubushuhe no kugumana uburyohe bw'umwimerere bw'ibiryo.
Copolymer ya ethylene-vinyl alcohol, izwi nka EVOH, izwi nka resine eshatu nini ku isi hamwe na polyvinylidene chloride (PVDC) na polyamide (PA) [2]. EVOH ishobora kubuza cyane kwinjira kwa ogisijeni mu kirere mu biribwa, bityo ikabuza ikorwa ry'uburozi n'ibindi bintu byangiza bitewe no kwiyongera kwa mikorobe, kandi ishobora no gukumira impinduka mu miterere iterwa no gushonga, mu gihe ikomeza impumuro nziza no gukumira impumuro mbi yo hanze. Byongeye kandi, kutagira ubushobozi bwo gufunga amazi bishobora kwishyurwa n'izindi paki za polyolefin. Kubwibyo, ibikoresho byo gupfunyika bya EVOH bishobora gukumira kwangirika kw'ibiribwa no kongera igihe cyo kubikora. Byongeye kandi, biroroshye gutunganya no gukora, kandi bifite imikorere myiza yo kurinda ibidukikije. Bitewe n'ubushobozi bwiza bwo gufunga gazi, ubwisanzure, ubushobozi bwo gutunganya no kurwanya solvent ya resine ya EVOH, imirima yayo ikoreshwa iragenda yaguka, kandi icyifuzo nacyo kirimo kwiyongera cyane.
Resin ya EVOH ifite uruzitiro rurerure
1. Imiterere y'ibikoresho
Imiterere y'imbogamizi za EVOH Imiterere y'imbogamizi z'ibikoresho bya polymer yerekeza ku bushobozi bwo kurinda ibicuruzwa ku myuka mito ya molekile, ibinyobwa, umwuka w'amazi, n'ibindi. Ubwoko bwa resin bukunze gukoreshwa muri iki gihe bufite imiterere myiza y'imbogamizi zirimo: EVOH, PVDC, PAN, PEN, PA na PET.
2. Iyo EVOH ikoreshejwe nk'ibikoresho biremereye, akenshi ikoresha imiterere y'ibice byinshi. Ibikoresho bikunze gukoreshwa ni: PP, HIPS, PE, EVOH, AD, na AD ni kole iri mu miterere. Imiterere y'ibice byinshi ishobora guha buri kintu ubushobozi bwo gukora neza, ikongera ubushobozi bwo kwirinda amazi bwa EVOH, kandi ikabona ibikoresho bifite imiterere myiza kandi byuzuye. Inyinshi muri zo zakoreshejwe mu gupfunyika byoroshye mu bihe byashize, ariko resine zivanze nka PP, PE, na PA ntibyoroshye kuzipfunyika bitewe n'ubukomere bwazo bwiza n'ubudahangarwa buke, ibyo bigatuma zigabanuka mu bijyanye no gupfunyika bikomeye, cyane cyane mu bikoresho byuzuza kuri interineti. HIPS za polystyrene zidashobora kugerwaho n'ingaruka zifite ubudahangarwa bwiza n'imiterere myiza yo gushushanya, zikwiriye gupfunyika kandi zikwiriye ibikoresho bikomeye byo gupfunyika. Kubwibyo, ni ngombwa cyane cyane guteza imbere cyane ibikoresho bifite EVOH bifite imiterere ikomeye ikwiriye gupfunyika bikomeye.
Bitewe n'uko resin ya EVOH idahuye neza na resin ya HIPS, ndetse n'itandukaniro rinini mu gipimo cya resin rheology, imbaraga zo guhuza hagati ya substrate na EVOH, ibisabwa ku miterere yo gukurura ya EVOH mu gihe cyo gushushanya, hamwe n'ikwirakwizwa ry'urwego rwa EVOH mu gihe cyo gushushanya kugira ngo hakorwe impapuro zivanze. Ubumwe bw'ibikoresho bivanze ni ibibazo by'ingenzi bigira ingaruka ku mikorere n'ikoreshwa ry'ibikoresho bivanze, ndetse ni n'ibibazo bigoye bigomba gukemurwa mu gihe cyo gukora ubwoko bw'ibikoresho bivanze.
Urufunguzo rw'ikoranabuhanga ryo gukwirakwiza ibintu mu buryo butandukanye ni kole (AD). Ibikoresho byo gupfunyika bya EVOH akenshi biba birimo PPEVOH, ariko PP na EVOH ntibishobora guhuzwa mu buryo butaziguye n'ubushyuhe, kandi kole (AD) igomba kongerwamo hagati ya PP na EVOH. Mu guhitamo kole, ni ngombwa gutekereza kole ya PP nk'ibikoresho by'ibanze, icya kabiri ni uguhuza ubushyuhe bwa PP na EVOH, naho icya gatatu ni ibisabwa ku miterere yo gukurura, kugira ngo hirindwe gutandukana mu gihe cyo gutunganya. Kubwibyo, impapuro zo gusohora ibintu mu buryo butandukanye ahanini ni impapuro zo gusohora ibintu mu buryo butandukanye (PPADEVOHADPP). /AD/EVOH/AD/R/PP, urwego rwo hanze ni ibikoresho bishya bya PP, naho izindi nzego ebyiri ni ibikoresho bya PP byahinduwe R(PP). Imiterere idahuye nayo irashobora gukoreshwa, kandi ibindi bikoresho (PE/HIPS, nibindi) bishobora kongerwamo ibikoresho byo gusohora ibintu mu buryo bumwe. Ihame ni rimwe, kandi uburyo bumwe bwo gusohora ibintu mu buryo butandukanye burashobora kugerwaho.
Porogaramu
Ibikoresho bya EVOH bifite imiterere myiza yo gukingira. Binyuze mu ikoranabuhanga ryo gukwirakwiza hamwe na PP, PE, PA, PETG n'ibindi bikoresho, bishobora gutunganywa mu bikoresho byo gupfunyika bifite imiterere 5, imiterere 7, n'imiterere 9, ahanini bikoreshwa mu gupfunyika ibintu bidahumanya, ibinyobwa bya jeli, ibikomoka ku mata, amafi akonje n'ibikomoka ku nyama n'ibindi. Mu buryo butari ibiribwa, bikoreshwa mu gupfunyika imiti, gupfunyika ibintu bishongesha umwuka n'ibindi, bifite imiterere myiza yo gukingira, ibyo bigatuma igihe cyo gukoresha ibicuruzwa kirushaho kuba cyiza.
Ibyiciro by'ibicuruzwa
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