1.. Membrane ubwayo ni kristaline cyane kandi ntishobora kugenda mumazi cyangwa yashizweho muri membrane, bigomba rero guhinduka. Hydroxyl yubuntu kumwanya C-2, C-3 na C-6 bihindura ibikorwa bya chimique kandi birashobora kugirirwa nabi, Guhangana, Gukomera, Gukomera no Kuzenguruka hamwe na Graft copolemetero. Kudakemurwa kwa selile yahinduwe birashobora kunozwa kandi bifite filime nziza.
2. Mu 1908, chesiste ya Swisbberg yateguye film ya mbere ya selile ya selilephafe, ubupayiniya bwiterambere ryibikoresho byo gupakira byoroshye. Kuva mu 1980, abantu batangiye kwiga selile nka firime yo kuribwa no guhimba. Guhinduranya Ubugari bwa Cekwi nigikoresho cya membrane bikozwe mubikomoka ku bikomoka nyuma yo guhindura imiti ya selile. Ubu bwoko bw'ikirere bufite imbaraga ndende, guhinduka, gukorera mu mucyo, kurwanya peteroli, amazi yemewe kandi itaryoshye, yo kuryoha, kurwanya ogisijeni.
3. CMC ikoreshwa mubiryo bikaranze, nkibifiriti yubufaransa, kugirango ugabanye ibinure. Iyo ikoreshwa hamwe na chloride ya calcium, ingaruka ni nziza. HPMC na MC bikoreshwa cyane mubushyuhe buvuwe, cyane cyane ibiryo bikaranze, kuko ari uruti. Muri Afurika, MC, HPMC, ibigori na amylose bikoreshwa mu guhagarika amavuta yoroshye mu biribwa bikaze bikaranze, nko gutera no kwibiza no kwiba ibisubizo by'ibikoresho by'ibishyimbo bitukura kugirango utegure film. Ibikoresho bya MC Bc Membrane nibikorwa byiza cyane muri bariyeri, zirashobora kugabanya iy'amavuta na 49%. Muri rusange kuvuga, ingero zidasanzwe zerekana koresha amavuta yo hasi kuruta gukura.
4. MCna hpmc nayo ikoreshwa mumyanya yingero nkimizi yibirayi, bateri, chip yibirayi n'ifu kugirango utezimbere imikorere ya bariyeri, mubisanzwe no gutera. Ubushakashatsi bwerekana ko MC ifite imikorere myiza yo guhagarika ubushuhe n'amavuta.ibibazo byo kugumana amazi biterwa ahanini na hydrofilirity yayo nke. Binyuze muri microscope, birashobora kugaragara ko MC Film ifite izoro nziza kugirango ibiryo bikaranze. Ubushakashatsi bwerekanye ko gutwika HPMC byatewe ku mipira y'inkoko bifite ifungwa ryiza kandi birashobora kugabanya cyane amavuta mugihe cyo gukandagira. Ibirindiro byamazi byicyitegererezo cyanyuma birashobora kwiyongera na 16.4%, ibinini byamavuta birashobora kugabanuka na 17.9%, kandi ibirimo byimbere byamavuta yimbere birashobora kugabanuka na 33.7% .Ibikorwa byamavuta ya bariyeri bifitanye isano na gel yubushyuhe imikorere yaHpmc. Ku cyiciro cyambere cya gel, uruhinja rwiyongera rwihuta, guhuza byimazeyo bibaho vuba, nigisubizo cyo kumuti kuri 50-90 ℃. Igice cya gel gishobora kubuza kwimuka namavuta mugihe cyo gukanda. Ongeraho hydrogel kumurongo wo hanze winkoko zikaranze zashizwe mumitsima yimigati irashobora kugabanya cyane amabere yinkoko kandi ugakomeza imitungo idasanzwe yicyitegererezo.
5. Nubwo HPMC ari ibintu bya firime nziza hamwe nibikoresho byiza hamwe nubufatanye bwamazi, ifite umugabane muto isoko. Hariho ibintu bibiri bigabanya porogaramu zayo: Icya mbere, ni, ni ukuvuga, ni ukuvuga virusi ikomeye nka gel yakozwe ku bushyuhe bwinshi, ariko ibaho mu gisubizo gito cyane ku bushyuhe bwicyumba. Kubera iyo mpamvu, matrix igomba gucika intege kandi yumirwa ku bushyuhe bwinshi mugihe cyo gutegura. Bitabaye ibyo, mugihe cyo gupfunga, gutera cyangwa kwibiza, igisubizo cyoroshye gutemba, gukora ibikoresho bya firime kitaringaniye, bigira ingaruka kumikorere ya firime ziribwa. Byongeye kandi, iki gikorwa kigomba kwemeza ko amahugurwa yose asa umusaruro abikwa hejuru ya 70 ℃, guta ubushyuhe bwinshi. Kubwibyo, birakenewe kugabanya gel ingingo cyangwa kongera ubushyuhe ku bushyuhe buke. Kabiri, bihenze cyane, agera kuri 100000 yuan / toni.
Igihe cyo kohereza: APR-26-2024