Kafukufuku
Monga zachilengedwe, zochuluka komanso zowonjezera komanso zowonjezera zomwe zimakumana ndi zovuta zazikulu pakugwiritsa ntchito ntchito zomwe sizikusungunula komanso zochepa. Kuphatikizika kwakukulu ndi ma hydrogen apamwamba kwambiri mu cellulose kumapangitsa kuti zisungunuke koma osasungunuka pazinthu, komanso zopanda mphamvu m'madzi ndi madera ambiri oyipitsa. Kuchokera kwawo kumapangidwa ndi kufufuzidwa ndi kumangiriza kwa magulu a hydroxyl pamayunitsi a bordrogluose mu polymer unyolo, ndipo amawonetsa zinthu zina zosiyanasiyana poyerekeza ndi cellose yachilengedwe. Kuchulukitsa kwa cellulose kumatha kupanga ma cellulose ambiri osungunuka, monga methyl cellulose (Mc), hydroxthyl cellulose (HPC), zodzikongoletsera, zodzoladzola. Kusungunuka kwamadzi kwa madzi kumatha kupanga ma polima a haidrogen ndi polycabobotelic acid ndi ma polyphenols.
Msonkhano wosanjikiza wa wosanjikiza (LBL) ndi njira yabwino yokonzekera polymer copmes oonda. Zotsatirazi zikufotokoza za msonkhano wa LBL mwa ma ces atatu osiyanasiyana a Hec, MC ndi HPC yokhala ndi Paa, amafanizira misonkhano yawo, ndikuwunika momwe misonkhano yamisonkhano ya LBL. Fufuzani za pH pa filimu makulidwe, ndi kusiyana kosiyana kwa PH pa mapangidwe filimu ndi chisinthiko, ndikupanga mayamwidwe amadzi a CE / Paa.
Zipangizo Zoyesera:
Polyacrylic acid (Paa, MW = 450,000). Makulidwe a 2wt.% Adzious yankho la hydroxyellulose (hec) ndi 300 a MPPI · 300, ndipo kuchuluka kwa cholowa ndi 2.5. Methylcellulose (MC, 2wt.% Yam'madzi am'madzi ndi mafayilo a 400 a MPPI'MICE NDIPONSO ZOTHANDIZA ZA 1.8). Hydroxypropyl cellulose (hpc, 2wt.% Yam'madzi am'madzi ndi mafayilo a 400 a MPPID ndi muyezo wa 2.5).
Kukonzekera Kanema:
Kukonzekera ndi Msonkhano wamadzimadzi wamafuta pa Silicon pa 25 ° C. Njira yochizira matrix ili motere: zilowerere mu acidic yankho (H2So4 / H2O2, 7 / 3VOL, kenako ndikutsuka ndi madzi osalongosoka kangapo, ndipo pamapeto pake muume ndi nayitrogeni yoyera. Msonkhano wa LBL umachitika pogwiritsa ntchito makina okha. Gawoli linanyowa mu CE yankho (0.2 mg / ml) ndi yankho la Paa (0,2 mg / ml), yankho lililonse lidanyowa, Zingwe zitatu zam'madzi za 1 min aliyense m'madzi owoneka bwino adachitidwa pakati pa yankho lililonse lotayika kuti lichotse polymer yolumikizidwa. Makhalidwe a PH of the Asonkha ndi njira yothetsera vutoli adasinthiratu ku Ph 2.0. Mafilimu okonzedwa ngati (CE / Paa) n, komwe n amatanthauza kuti msonkhano. (HeC / Paa) 40, (MC / Paa) 30 ndi (HPC / Pai) 30 Ankakonzekera.
Mawonekedwe a filimu:
Pafupi ndi mawonekedwe wamba adalembedwa ndikuwunika ndi Nanocalc-Xr Oce Onnics, ndipo makulidwe a mafilimu omwe adayikidwa pa sinayi adayesedwa. Ndi silika yopanda silicon monga maziko, Ft-IR Spectrum ya filimu yopyapyala idasonkhanitsidwa pa Nicolet 8700 Spectrometer.
Hydrogen Consection pakati pa Paa ndi CES:
Msonkhano wa Hec, MC ndi HPC yokhala ndi Paa mu mafilimu a LBL. Spectra yodziwika ya HeC / Paa, MC / Paa ndi HPC / Pai akuwonetsedwa mu chithunzi. Zizindikiro zamphamvu za Paa ndi Ces zitha kuwonedwa bwino mu IR Spectra of HeC / Paa, MC / Paa ndi HPC / Pai. FT-IR Spectroscopy imatha kusanthula mtundu wa hydrogen Comption pakati pa Paa ndi CES posonyeza kusintha kwa mayamwidwe. Kulumikizana kwa hydrojeni pakati pa ce ndi paa kumachitika pakati pa okosijeni a hydroxyl okosijeni a CES ndi gulu la cooh la Pai. Mgwirizano wa hydrogen utapangidwa, umapangidwa, zotambasuliratu zofiira zimasunthika kunjira yotsika kwambiri.
Chingwe cha 1710 cm-1 chimawonedwa pa ufa woyenerera. Pamene Polyucrylamide adasonkhana m'mafilimu omwe ali ndi ma ces osiyanasiyana, nsonga za hec / Paa, 1, 1720 cm. Poyerekeza ndi ufa woyenerera wa paa, nsonga kutalika kwa HPC / Paa, MC / Paa ndi mafilimu osungunuka ndi 14, 10 ndi 8, motero. Mgwirizano wa hydrogen pakati pa oxyar oxygen ndi cooh amasokoneza mgwirizano wa hydrogen pakati pamagulu a Cooh. Ma bond Hydrogen amapangidwa pakati pa Paa ndi CE, ndiye kuti wamkulu wa Peak. HPC ili ndi digiri yapamwamba kwambiri ya hydrogen Comptions, Paa ndi MC ali pakati, ndipo hec ndiye wotsika kwambiri.
Kukula kwa mafilimu ophatikizika a Paa ndi CES:
Khalidwe lopanga mafilimu a Paa ndi CES Pa Misonkhano ya LBL idafufuzidwa pogwiritsa ntchito QCM ndi Specferal interferometry. QCM ndizothandiza powunikira kukula kwa filimu ku Stutu Pamiyala yowerengeka yoyambirira. Ma Interperative a Speamer ndi oyenera mafilimu okwera paming'alu 10.
Kanema wa HeC / Paa adawonetsa kukula kwa Msonkhano wonse, pomwe a MC / Paa ndi HPC / Paha ndi Paa ndi Paa ndi Paa ndi Paa adawonetsa kukula kwapakatikati pamsonkhanowu kenako ndikusintha kukhala mzere wa msonkhano ndikusandulika kukhala kukula kwa mzere. M'gawo la Kukula kwa Mzera, kutalika kwa mapangidwe, kukula kwakukulu kwa kukula kwa kukula kwa msonkhano uliwonse.
Zotsatira za Njira ya PH Pakukula kwafilimu:
Mtengo wa PH wa They they umakhudza kukula kwa filimu ya hydrogen yolumikizana. Monga polydeledrolyte, Paa idzakhala yotsimikizika komanso yolakwika yolipiridwa ngati PH ya yankho limawonjezeka, potengera Hydrogen Conse. Pamene digiri ya mayation wa Paa adafika pamlingo wina, Paa sakanatha kusonkhanitsa kanema ndi olandila hydrogen ku LBL.
Kukula kwa mafilimu kunachepa ndi kuchuluka kwa yankho Ph, ndipo makulidwe a filimuwo adatsika mwadzidzidzi pa PH2.5 HPC / Paa ndi Ph3.0-3.5 HPC / Paa. Mfundo yovuta ya HPC / Pamwa ili pafupi Ph 3.5, pomwe za Hec / Paa ili pafupifupi 3.0. Izi zikutanthauza kuti pH ya Somerwal Solution Yapamwamba ndi yapamwamba kuposa 3.5, filimu ya HPC / Paa sangapangidwe, ndipo ikakhala ngati filimu ya hec / paA sizingapangidwe. Chifukwa cha kuchuluka kwa hydrogen Comptation ya HPC / Pam Membrane, mtengo wotsutsa wa HPC / Pampa Membrane ndiwokwera kuposa wa HeC / Pampaner. Munjira yachidule yamchere, zifukwa zotsimikizika za mabuluzi zopangidwa ndi HeC / Paa, MC / Paa ndi HPC / Pai. The oyenera Ph wa HPC / Paa ndi wokwera kuposa wa HeC / Paa, zomwe zimagwirizana ndi LBL nembanemba.
Madzi a Madzi a CE / Pama Membrane:
CES imalemera m'magulu a hydroxyl kuti ikhale ndi mayamwa abwino ndi kusungidwa kwamadzi. Kutenga HeC / Pam Membrane monga chitsanzo, kuchuluka kwa ma hydrogen ogwirizanitsa a haidgen. Yodziwika ndi inceractry interferometry, mafilimu amakulidwe amawonjezeka pamene kanema amayamwa madzi. Idayikidwa m'malo okhala chinyezi chosinthika pa 25 ° C kwa maola 24 kuti akwaniritse madzi mayamwidwe ofanana. Makanema adawuma mu vacuum uvuni (40 ° C kuti muchotse chinyezi.
Pamene chinyezi chimachuluka, filimuyo imatsitsimutsa. M'dera lotsika chinyezi cha 30% -50%, kukula kwa kukula kwake kumachedwa. Chinyezi chiposa 50%, makulidwe amakula mwachangu. Poyerekeza ndi pvpon / paA membrane, hec / paA membrane amatha kuyamwa madzi ambiri ku chilengedwe. Pansi pa mkhalidwe wa chinyezi cha 70% (filimu ya 25 ° C), filimu yokulirapo ya Pvpon / Paa Phatikizani 4%, pomwe wa filimu ya HeC / Paa ili yokwera pafupifupi 18%. Zotsatira zake zidawonetsa kuti ngakhale kuchuluka kwa maanja mu hec / Paa kachitidwe ka HIC / Paa adachitapo kanthu pakupanga ma hydrogen, panali ambiri oh mahazi amalumikizana ndi madzi pachilengedwe. Chifukwa chake, dongosolo la HeC / Paa lili ndi mayamwidwe abwino amadzi.
Pomaliza
.
.
. Mukayankha buku la PH ndi lalikulu kuposa malo ake ovuta, Paa ndi CE SITIYENSE KUTI MUZIKHALA NDI CHINSINSI. Osonkhanitsa CE / Pam Membrane anali osungunuka m'matumba okwera a Ph.
. Ce / Pam Membrane ali ndi bamba labwino ndipo limakhala lopanda mayankho apamwamba a pH.
.
Post Nthawi: Feb-18-2023