Ma cellulose, omwe amapezeka kwambiri padziko lapansi, amawonetsa zinthu zochititsa chidwi, chimodzi mwazomwe zimatheka potengera madzi.Mtundu wa cellulose uwu wa hygroscopic umapezeka m'mafakitale osiyanasiyana, kuchokera ku nsalu kupita ku mankhwala.Kumvetsetsa momwe mayamwidwe a cellulose amamangidwira m'madzi ndikofunikira kuti akwaniritse ntchito zake zosiyanasiyana.
Chiyambi:
Cellulose, polysaccharide yopangidwa ndi mayunitsi a shuga olumikizidwa ndi β(1→4) glycosidic bond, ndiye gawo lalikulu la makoma a cell cell.Kuchuluka kwake m'chilengedwe, kusinthikanso, komanso kuwonongeka kwachilengedwe kumapangitsa kuti ikhale yofunika kwambiri pamafakitale ambiri.Chimodzi mwazinthu zochititsa chidwi za cellulose ndikutha kuyamwa madzi bwino.Khalidweli lili ndi tanthauzo lalikulu m'magawo osiyanasiyana monga nsalu, kupanga mapepala, chakudya, mankhwala, ndi biomatadium.Kumvetsetsa momwe ma cellulose amayamwitsa madzi ndikofunikira kuti agwiritse ntchito mphamvu zake zonse pakugwiritsa ntchito izi.
Zomwe Zimayambitsa Kumwa kwa Madzi ndi Cellulose:
Pali zinthu zingapo zomwe zimakhudza kuyamwa kwamadzi kwa cellulose:
Crystallinity: Kapangidwe ka kristalo ka cellulose kumakhudza kwambiri mayamwidwe ake amadzi.Madera a crystalline amawonetsa mayamwidwe ocheperako poyerekeza ndi madera aamorphous chifukwa cholephera kupeza mamolekyu amadzi.
Surface Area: Pamwamba pa ulusi wa cellulose umakhala ndi gawo lofunikira pakuyamwa kwamadzi.Ma cellulose ogawanika bwino okhala ndi malo okwera kwambiri amatha kuyamwa madzi ochulukirapo poyerekeza ndi zida za cellulose za bulkier.
Hydrophilicity: Magulu a Hydroxyl (-OH) omwe amapezeka mu cellulose mamolekyu amawapangitsa kukhala hydrophilic, kumathandizira kuyamwa kwamadzi kudzera mu mgwirizano wa haidrojeni.
Digiri ya Polymerization: Ma cellulose okhala ndi ma polymerization apamwamba amakhala ndi mphamvu yoyamwa madzi chifukwa chokhala ndi magulu ambiri a hydroxyl pa unit mass.
Kutentha ndi Chinyezi Chachifupi: Mikhalidwe ya chilengedwe monga kutentha ndi chinyezi chochepa zimakhudza kwambiri khalidwe la cellulose lomwe limayamwa madzi.Kutentha kwakukulu ndi chinyezi nthawi zambiri kumapangitsa kuti madzi ayambe kuyamwa chifukwa cha kuchuluka kwa mamolekyu amadzi.
Njira Zowonetsera Makhalidwe:
Njira zosiyanasiyana zimagwiritsidwa ntchito pozindikira momwe mayamwidwe am'madzi a cellulose amayamwitsa:
Gravimetric Analysis: Njira za Gravimetric zikuphatikizapo kuyeza kulemera kwa zitsanzo za cellulose pakukumana ndi madzi pakapita nthawi.Izi zimapereka chidziwitso chochulukira pa mayamwidwe amadzi ndi kuchuluka kwa chinyezi.
Fourier Transform Infrared Spectroscopy (FTIR): FTIR spectroscopy imagwiritsidwa ntchito kusanthula kusintha kwamagulu ogwira ntchito a cellulose pakuyamwa madzi.Kusintha kwa malo apamwamba ndi kulimba kumawonetsa kuyanjana pakati pa cellulose ndi mamolekyu amadzi.
X-ray Diffraction (XRD): XRD imagwiritsidwa ntchito kuwunika kusintha kwa cellulose crystallinity kutsatira kuyamwa kwamadzi.Kuchepa kwa crystallinity index kukuwonetsa kutupa kwa ulusi wa cellulose chifukwa chakumwa madzi.
Scanning Electron Microscopy (SEM): SEM imalola kuwonera kwakusintha kwa morphological mu ulusi wa cellulose isanayambe kapena itatha kuyamwa madzi.Imawunikiranso kutsimikizika kwapangidwe komanso kukhazikika kwa zida za cellulose.
Kugwiritsa Ntchito Cellulose Monga Hygroscopic Material:
Chikhalidwe cha hygroscopic cha cellulose chimapeza ntchito zosiyanasiyana m'mafakitale osiyanasiyana:
Zovala: Ulusi wopangidwa ndi cellulose monga thonje ndi rayon amagwiritsidwa ntchito kwambiri popanga nsalu chifukwa amatha kuyamwa chinyezi, kupereka chitonthozo ndi kupuma kwa zovala.
Kupanga Mapepala: Ulusi wa cellulose umagwira ntchito ngati zopangira zopangira mapepala.Mayamwidwe awo amadzi amakhudza mtundu wa pepala, kusindikizidwa, ndi mphamvu.
Makampani a Chakudya: Zochokera ku cellulose monga methylcellulose ndi carboxymethylcellulose zimagwiritsidwa ntchito ngati zolimbitsa thupi, zolimbitsa thupi, ndi zopangira ma emulsifiers m'zakudya.Mayamwidwe awo amadzi amawonjezera mawonekedwe ake komanso kukhazikika kwa moyo wa alumali.
Mankhwala: Zothandizira zochokera ku cellulose zimagwiritsidwa ntchito kwambiri popanga mankhwala kuti athe kuwongolera kutulutsa kwamankhwala, kukonza bata, komanso kupangitsa bioavailability.Amathandiziranso pakuwonongeka ndi kusungunuka kwa mapiritsi ndi makapisozi.
Zida Zamoyo: Ma cellulose hydrogel ndi mafilimu akutuluka ngati ma biomaterials odalirika pazogwiritsa ntchito zosiyanasiyana zamankhwala, kuphatikiza kutumiza mankhwala, kupanga minofu, komanso kuchiritsa mabala.Mayamwidwe awo amadzi am'madzi amathandizira kuti ma hydration azitha komanso kuchuluka kwa maselo.
Kuthekera kodabwitsa kwa cellulose kuyamwa madzi kumachokera ku kapangidwe kake kapadera komanso kapangidwe kake.Kumvetsetsa zomwe zimathandizira kuyamwa kwamadzi, njira zowonetsera, komanso kagwiritsidwe ntchito ka cellulose ngati chinthu cha hygroscopic ndikofunikira kuti ntchito yake ikhale yabwino m'mafakitale osiyanasiyana.Kafukufuku wopitilira mu gawoli adzakulitsanso kuchuluka kwa ntchito ndikuthandizira pakupanga zinthu zokhazikika zokhala ndi magwiridwe antchito abwino.
Nthawi yotumiza: Mar-29-2024