Ubushakashatsi
Nkibikoresho bisanzwe, byinshi kandi bishobora kongerwa, selile bihuye nibibazo bikomeye mubikorwa bifatika bitewe no kudacogora kandi bike cyane. Hafi ya karina ndende hamwe nubucucike bwa hydrogen yo hejuru muburyo bwa selile bigatesha agaciro ariko ntibishonga mugihe cyo gutunga, kandi bidashobora gushonga mumazi hamwe namazi meza. Abakomokaho bikorwa no gukomera no gutandukanya amatsinda ya hydroxyl kumashami ya anhyblucoso mumaguru ya Polymer, kandi azagaragaza ibintu bimwe bitandukanye ugereranije na selile isanzwe. Guhangana kwa selile birashobora kubyara byinshi bishongora, nka Methyl selile. Gukuramo amazi IC birashobora gukora hydrogen-hungally-ihuza acide ya polycarylic na polyphenol.
Inteko ya Layeri-By-layer (LBL) nuburyo bwiza bwo gutegura polymer huzuye firime zoroheje. Ibikurikira bisobanura ahanini n'iteraniro rya LBL rya CBL itandukanye ya Hec, MC na HPC hamwe na Paa, bagereranya imyitwarire yabo, kandi isesengure ingaruka z'abasimbuye bo mu iteraniro rya LBL. Gukora iperereza ku ngaruka ya PH kuri film z'ubugari, kandi itandukaniro ritandukanye rya PH kuri filime no gusesa, kandi utezimbere imitungo yo kwinjiza amazi ya CE / PAA.
Ibikoresho byo mu bushakashatsi:
Aside ya polyacryclika (paa, MW = 450.000). Viscosity ya 2wt.% Igisubizo cya HydroxyAblethylceellSlcesellse (HEC) ni 300 mspa ·, n'urwego rwo gusimburwa ni 2.5. Methycellsellse (mc, 2wt.% Bitangaje hamwe na viscozetity ya 400 m n'urwego rwo gusimbuza 1.8). HydroxyPropyl Cell Soleulose (HPC, 2wt.%
Gutegura firime:
Byateguwe n'amazi ya kirisiti yumwanya wa silicon kuri 25 ° C. Uburyo bwo kuvura matrix ya slide ni ibi bikurikira: Shyira mu gisubizo cya acide (H2SO4 / H2O2, hanyuma ukandagira amazi meza, hanyuma ukayuma hamwe na azote nziza. LBL Inteko ikorwa ukoresheje imashini zikoresha. Inshyi ahagaragara ryashyizwe mu mpungenge za Cent (0.2 MG / ML) na PAA igisubizo (0.2 MG / ML), buri gisubizo cyashizwemo saa kumi n'ebyiri. Ibishyimbo bitatu byometse kuri 1 min buri mazi adafite isuka yakozwe hagati ya buri gisubizo cyo gusohora polymer. PH indangagaciro z'iteraniro no gukemura igisubizo byombi byahinduwe kuri PH 2.0. Filime zateguwe nka (CE / Paa) n, aho n kwerekana inteko. (Hec / Paa) 40, (MC / PAA) 30 na (HPC / PAA) 30 bari barateguye cyane.
Kuranga Filime:
Hafi ya Spectra isanzwe yanditswe kandi isesengurwa hamwe na Nanocalc-XR Optics Optics yo mu nyanja, hamwe na firime zashyizwe kuri silicon zapimwe. Hamwe na silicon ya silicon yubusa nkinyuma, FT-IR Spectrum ya firime yoroheje kuri silicon yakusanyijwe kuri nicolet 8700.
Imikoranire ya hydrogen hagati ya paa na ces:
Inteko ya Hec, MC na HPC hamwe na paa film za LBL. Spectra ya Infrared ya Hec / Paa, MC / Paa na HPC / paa byerekanwe ku gishushanyo. Ibimenyetso bikomeye bya IR na Ces birashobora kubahirizwa neza muri IR Spectra ya Hec / Paa, MC / Paa na HPC / Paa. FT-IR Spectroscopy irashobora gusesengura ububiko bwa hydrogène hagati ya Paa na Ces mugukurikirana impinduka ziranga. Amarira ya hydrogen hagati ya Ces na Paa ahanini bibaho hagati ya hydroxyl ogisijeni ya ces na cooh itsinda rya paa. Nyuma yububiko bwa hydrogen bukorwa, kurambura hejuru yumutuku kugeza kumabere make.
Impinga ya CM 1710-1 yubatswe ifu ya paa. Igihe Polyacrylaside yateranaga muri firime hamwe na ces zitandukanye, impinga ya Hec / PAA, MC / PAA cyangwa PM iherereye kuri cm 1718, 17 na 17 na 1724 cm-1,. Ugereranije n'ifu ya paa yuzuye, uburebure bwa HPC / Paa, MC / PAA na PAA na PAA na PAA na PAA na PAA na PAA byahinduwe na 14, 10 na 8 cm-1. Ububiko bwa hydrogen hagati ya Elitherwen na Cooh bahagarika ubumwe bwa hydrogen hagati yitsinda rya cooh. BoyDrogen nyinshi zakozwe hagati ya Paa na CE, umucyo wa shift ya CE / Paa muri IR SPECTRA. HPC ifite urwego rwo hejuru rwa Hydrogène Yongerewe, Paa na MC bari hagati, kandi hec ni yo hasi.
Imyitwarire yo gukura ya firime zigizwe na paa na ces:
Imyitwarire ishinyagurika rya Filime ya Paa na Ces mu Nteko ya LBL iperereza iperereza ku gukoresha QCM na Specral Interfutry. QCM igira akamaro yo gukurikirana imikurire ya firime mu gihe mu gihe cy'iteraniro rya mbere. Interfural interferometero irakwiriye kuri firime zikuze hejuru yimizingo 10.
Filime ya Hec / Paa yerekanaga umurongo wumurongo mumikorere ya LBL, mugihe MC / Paa Filime za HPC na PPC / PPC / Paa zerekanye iterambere ryigihe cyambere kandi hanyuma rihinduka mumikurire yumurongo. Mu iterambere ryo gukura umurongo, urwego rwo hejuru rworoshye, ubwiyongere buhebuje kuri buri sycle.
Ingaruka zo gukemura PH mugukura kwa firime:
Agaciro PH yumusubizo kigira ingaruka ku mikurire ya hydrogen ihungabintu ya polymer. Nka Polyyelectrolyte, Paa izashyirwa ahagaragara kandi ishinjwa nabi nkuko PH yibisubizo yiyongera, bityo ibuza ishyirahamwe rya hydrogen. Iyo urwego rwa Ionisation rwa Paa rugeze ku rwego runaka, Paa ntiyigeze akoranya muri firime hamwe na hydrogen bond ituranya muri lbl.
Ubunini bwa filime bwagabanutse bwo kwiyongera kwa PH, kandi umubyimba wa filime wagabanutse gitunguranye muri PH2.5 HPC / Paa na PH3.0-3.5 hpc / paa. Ingingo ikomeye ya HPC / Paa igera kuri Ph 3.5, mugihe iy Hec / Paa igera kuri 3.0. Ibi bivuze ko igihe PH yigisubizo Cyikora ari hejuru ya 35, firime ya HPC / Paa ntishobora gushingwa, kandi mugihe PH yumuti wibisubizo iruta 30, firime ya Hec / Paa ntishobora gushingwa. Kubera urwego rwo hejuru rwa Hydrogen Conglexation ya HPC / Paa Membrane, agaciro ka Ph ikomeye ya HPC / Paa Membrane birenze ibyo Hec / Paa Membrane. Mu gisubizo kidafite umunyu, indangagaciro za ph ikomeye y'ibigo byakozwe na HEC / PAA, MC / PPC / PPC / PPC / PAA byari hafi ya 2.9, 3.2 na 3.7. PH ya HPC / Paa iruta iya Hec / PAA, ihuye n'iy LBL Membrane.
Gukora amazi ya CE / Paa Membrane:
CES ikungahaye mumatsinda ya hydroxyl kugirango ishobore kwinjiza amazi meza no kugumana amazi. Gufata Hec / Paa Membterane nk'urugero, ubushobozi bwo kumenyesha bwa hydrogen-bo / paa Membrane mu bidukikije. Kurangwa no kwiyiriza, filime ndende yongera nka firime ikurura amazi. Yashyizwe mubidukikije bifite ubushuhe bukoreshwa kuri 25 ° C kumasaha 24 kugirango agere kuri amazi yo hejuru. Filime zumye mumatako ya vacuum (40 ° c) kuri 24 h kugirango ukureho burundu.
Mugihe ubushuhe bwiyongera, filime ibibyimba. Mu gace gake cyane 30% -50%, ubwiyongere bukabije burangiye. Iyo ubushuhe burenze 50%, ubunini burakura vuba. Ugereranije na hydrogen-hungal pvpon / paa membrane, Hec / Paa Membrane irashobora kwinjiza amazi menshi mubidukikije. Muburyo bworoshye bwa shumidity ya 70% (25 ° C), uruzitiro rwa PVPON / Paa ruri hafi 4%, mugihe cya firime ya Hec / Paa ari hejuru nka 18%. Ibisubizo byerekanaga ko nubwo umubare runaka wamatsinda ye yewe muri sisitemu ya Hec / Paa yagize uruhare mukurema hydrogen, haracyari umubare utari muto wa yewe gusabana namazi mubidukikije mubidukikije mubidukikije. Kubwibyo, sisitemu ya Hec / Paa ifite imitungo myiza.
Mu gusoza
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. Iyo igisubizo PH kiri hejuru kuruta ingingo yayo ikomeye, paa hanyuma CE ntishobora guterana muri firime. Ihuriro IC / Paa Membrane yari amerewe nabi mubisubizo byinshi.
. Umusaraba wa Crossked CE / Paa Membrane afite umutekano mwiza kandi ihujwe no gusohora mubisubizo byinshi.
(5) Filime ya CE / PAA ifite ubushobozi bwiza bwo kumenyesha amazi mubidukikije.
Igihe cyagenwe: Feb-18-2023