Gukora selile nziza ya selile ikubiyemo intambwe nyinshi, uhereye ku gukuramo selile mu bikoresho byibimera kugeza uburyo bwo guhindura imiti.
Isoko rya Cellulose: Cellulose, polysaccharide iboneka mu rukuta rw'utugingo ngengabuzima y'ibimera, ikora nk'ibikoresho fatizo bya selile. Inkomoko isanzwe irimo ibiti byimbuto, ipamba, nibindi bimera bya fibrous nka jute cyangwa ikivuguto.
Guswera: Gusunika ni inzira yo gutandukanya fibre selile yibikoresho byibimera. Ibi mubisanzwe bigerwaho hakoreshejwe imashini cyangwa imiti. Gukoresha imashini zirimo gusya cyangwa gutunganya ibikoresho kugirango bitandukane fibre, mugihe imiti ya chimique, nkibikorwa byubukorikori, ikoresha imiti nka sodium hydroxide na sodium sulfide kugirango ishongeshe lignine na hemicellulose, hasigara selile.
Bleaching (Bihitamo): Niba hifujwe isuku ryinshi, selile ya selile irashobora gukorerwa inzira yo guhumeka kugirango ikureho lignine isigaye, hemicellulose, nibindi byanduye. Dioxyde ya Chlorine, hydrogen peroxide, cyangwa ogisijeni ni ibintu bisanzwe bihumanya bikoreshwa muri iyi ntambwe.
Igikorwa: Ethers ya selile isanzwe itegurwa mugukora selile hamwe na hydroxide ya alkali ibyuma kugirango ikore alkali selile. Iyi ntambwe ikubiyemo kubyimba fibre selile mumuti wa hydroxide ya sodium cyangwa potasiyumu hydroxide mubushyuhe bwo hejuru. Iyi ntambwe yo gukora ituma selile ikora cyane kuri etherification.
Etherification: Etherification nintambwe yingenzi mukubyara selile. Harimo kwinjiza amatsinda ya ether (nka methyl, Ethyl, hydroxyethyl, cyangwa hydroxypropyl matsinda) kumugongo wa selile. Iyi reaction mubisanzwe ikorwa mukuvura alkali selile hamwe na etherifinging nka alkyl halide (urugero, methyl chloride ya methyl selulose), okiside ya alkylene (urugero, okiside ya Ethylene ya hydroxyethyl selulose), cyangwa alkyl halohydrine (urugero, oxyde ya propylene ya hydroxypropyl selulose) ) munsi yubushyuhe bwubushyuhe, umuvuduko, na pH.
Kutabogama no Gukaraba: Nyuma ya etherification, imvange ya reaction itabogamye kugirango ikureho alkali irenze. Ubusanzwe ibyo bikorwa wongeyeho aside, nka aside hydrochloric cyangwa aside sulfurike, kugirango uhindure alkali kandi ugabanye ether ya selile. Ibicuruzwa bivamo noneho byogejwe namazi kugirango bikureho imiti isigaye nibindi bicuruzwa.
Kuma: Igicuruzwa cya selile yogejwe ya ether isanzwe yumishwa kugirango ikureho ubuhehere burenze kandi ibone ifu yanyuma cyangwa granulaire. Ibi birashobora gukorwa hakoreshejwe tekinike nko gukama ikirere, gukama vacuum, cyangwa kumisha spray.
Kugenzura ubuziranenge: Ingamba zo kugenzura ubuziranenge ni ngombwa kugirango habeho ubuziranenge, guhoraho, hamwe n’ibintu byifuzwa bya selile. Ibi bikubiyemo kugerageza ibicuruzwa kubipimo nkurwego rwo gusimbuza, viscosity, ingano yubunini bwagabanijwe, ibirimo ubuhehere, nubuziranenge ukoresheje tekinike yisesengura nka titre, viscometrie, na spectroscopy.
Gupakira no kubika: Ethers ya selile imaze gukama no gupimwa ubuziranenge, bapakirwa mubintu byabitswe kandi bikabikwa mugihe cyagenwe kugirango birinde gufata neza no kwangirika. Kuranga neza hamwe ninyandiko zamakuru arambuye nabyo ni ngombwa mugukurikirana no kubahiriza amabwiriza.
Mugukurikiza izi ntambwe, birashoboka kubyara ethers ya selile nziza hamwe nibintu byifuzwa mubikorwa bitandukanye byinganda, harimo imiti, ibiryo, amavuta yo kwisiga, imyenda, nibikoresho byubwubatsi.
Igihe cyo kohereza: Apr-24-2024