Ibyerekeye Cellulose
Cellulose ni macromolecular polysaccharide igizwe na glucose. Ibaho cyane mubimera bibisi n'ibinyabuzima byo mu nyanja. Nibintu byakwirakwijwe cyane kandi binini bya polymer karemano muri kamere. Ifite biocompatibilité nziza, ishobora kuvugururwa na Biodegradable nibindi byiza. Binyuze kuri fotosintezeza, ibimera birashobora guhuza toni miriyoni amagana ya selile buri mwaka.
Ibyifuzo bya Cellulose
Cellulose gakondo yagabanije gukoresha cyane kubera imiterere yumubiri na chimique, mugihe polymer naturel ya selile naturel selile ifite imikorere itandukanye nyuma yo kuyitunganya no kuyihindura, ishobora guhaza ibyifuzo bitandukanye byinganda zitandukanye. Imikoreshereze yimikorere yibikoresho bya selile byahindutse inzira yiterambere ryiterambere hamwe nubushakashatsi bwibikoresho bya polymer.
Inkomoko ya selile ikorwa na esterification cyangwa etherification ya hydroxyl mumatsinda ya selile ya polymer hamwe na reagent ya chimique. Ukurikije imiterere yimiterere yibicuruzwa byabyitwayemo, ibikomoka kuri selile bishobora kugabanywamo ibyiciro bitatu: selile ya selile, ester selile, na selile ya ether.
1. Cellulose ether
Cellulose ether nijambo rusange ryuruhererekane rwibikomoka kuri selile byakozwe nigikorwa cya alkali selulose na etherifying agent mubihe bimwe. Cellulose ether ni ubwoko bwa selulose ikomoka hamwe nubwoko butandukanye, imirima yagutse ikoreshwa, ingano nini yumusaruro nagaciro gakomeye mubushakashatsi. Ikoreshwa ryarwo ririmo ibintu byinshi nkinganda, ubuhinzi, inganda z’imiti ya buri munsi, kurengera ibidukikije, ikirere ndetse n’ingabo z’igihugu.
Ethers ya selile ikoreshwa mubucuruzi ni: methyl selulose, carboxymethyl selulose, Ethyl selulose, hydroxyethyl selulose, cyanoethyl selulose, hydroxypropyl selulose na hydroxypropyl methylcellulose Cellulose nibindi.
2. Ester ya selile
Ester ya selile ikoreshwa cyane mubijyanye no kurinda igihugu, inganda z’imiti, ibinyabuzima, ubuvuzi, ubwubatsi ndetse n’ikirere.
Esters ya selulose ikoreshwa mubucuruzi ni: nitrat ya selulose, selile ya selile, selile ya acetate butyrate na selile xanthate.
3. Cellulose ether ester
Cellulose ether esters ni ester-ether ivanze.
Umwanya wo gusaba ：
1. Imiti yimiti
Cellulose ether nibikomoka kuri ester bikoreshwa cyane mubuvuzi kubyimbye, bidasanzwe, kurekurwa kuramba, kurekurwa kugenzurwa, gukora firime nibindi bikorwa.
2. Umwanya wo gutwikira
Cellulose esters igira uruhare runini mugutwikira porogaramu.IngirabuzimafatizoByakoreshejwe muri binders, byahinduwe cyangwa ibikoresho byabanjirije firime kugirango bitange ibifuniko nibintu byiza cyane.
3. Umwanya wa tekinoroji ya Membrane
Cellulose n'ibikoresho bikomokaho bifite ibyiza byo gusohora byinshi, imikorere ihamye, hamwe no kongera gukoreshwa. Binyuze murwego-rw-kwishyira hamwe, uburyo bwo guhinduranya icyiciro, tekinoroji ya electrospinning nubundi buryo, ibikoresho bya membrane nibikorwa byiza byo gutandukana birashobora gutegurwa. Mubyerekeranye na tekinoroji ya membrane ikoreshwa cyane.
4. Urwego rwubwubatsi
Ether ya selile ifite imbaraga nyinshi zidasubirwaho kandi zikaba ingirakamaro kubwinyongera mubice byubwubatsi, nkibikoresho bya sima bishingiye kuri sima.
5. Ikirere, ibinyabiziga bishya byingufu nibikoresho bya elegitoroniki byo mu rwego rwo hejuru
Ibikoresho bishingiye kuri selile ikora ibikoresho bya optoelectronic birashobora gukoreshwa mubirere, ibinyabiziga bishya byingufu hamwe nibikoresho bya elegitoroniki byo mu rwego rwo hejuru.
Igihe cyo kohereza: Apr-25-2024