Gukora inzira ya sodium carboxymethylcellulose

Igikorwa cyo gukora sodium carboxymethylcellulose (CMC) gikubiyemo intambwe nyinshi, harimo gutegura selile, etherification, kweza, no gukama. Dore incamake yuburyo busanzwe bwo gukora:

1. Gutegura Cellulose: Inzira itangirana no gutegura selile, ubusanzwe ikomoka kumiti cyangwa ibiti by'ipamba. Cellulose yabanje kwezwa no kunonosorwa kugirango ikureho umwanda nka lignin, hemicellulose, nibindi byanduza. Iyi selile isukuye ikora nkibikoresho byo gutangiza umusaruro wa CMC.
2. Alkalisation: Cellulose isukuye noneho ivurwa n'umuti wa alkaline, ubusanzwe hydroxide ya sodium (NaOH), kugirango yongere imbaraga kandi yorohereze reaction ya etherification. Alkalisation nayo ifasha kubyimba no gufungura fibre ya selile, bigatuma irushaho guhinduka imiti.
3. Imyitwarire ya Etherification: Selulose ya alkalize ikoreshwa na acide monochloroacetic (MCA) cyangwa umunyu wa sodium, sodium monochloroacetate (SMCA), imbere ya catalizator mugihe cyagenwe. Iyi reaction ya etherification ikubiyemo gusimbuza amatsinda ya hydroxyl kumurongo wa selile hamwe na carboxymethyl (-CH2COONa). Urwego rwo gusimbuza (DS), rugereranya umubare mpuzandengo wamatsinda ya carboxymethyl kuri glucose yumurongo wa selile, urashobora kugenzurwa no guhindura ibipimo byerekana nkubushyuhe, igihe cyo kubyitwaramo, hamwe nubushakashatsi bwibanze.
4. Kutabogama: Nyuma ya reaction ya etherification, ibicuruzwa bivamo bidafite aho bihuriye kugirango uhindure amatsinda acide yose asigaye muburyo bwumunyu wa sodium (sodium ya carboxymethylcellulose). Ibi mubisanzwe bigerwaho hiyongereyeho igisubizo cya alkaline, nka sodium hydroxide (NaOH), kuvanga reaction. Kutabogama bifasha kandi guhindura pH yumuti no guhagarika ibicuruzwa bya CMC.
5. Isuku: Cardiyumu ya sodiyumu ya karubumuyumu noneho isukurwa kugirango ikureho umwanda, reagent zidakozwe, hamwe nibicuruzwa biva mu ruvangitirane. Uburyo bwo kweza bushobora kubamo gukaraba, kuyungurura, centrifugation, no gukama. CMC isukuye isanzwe yogejwe namazi kugirango ikureho alkali isigaye n umunyu, hanyuma bigakurikirwa no kuyungurura cyangwa centrifugation kugirango itandukane ibicuruzwa bikomeye bya CMC nicyiciro cyamazi.
6. Kuma: sodium isukuye carboxymethylcellulose yarangije kwumishwa kugirango ikureho ubuhehere burenze kandi ibone ibishishwa byifuzwa kubikwa no gutunganya neza. Uburyo bwo kumisha bushobora kubamo kwumisha ikirere, kumisha spray, cyangwa gukama ingoma, bitewe nibicuruzwa byifuzwa hamwe nubunini bwo gukora.

Ibicuruzwa bivamo sodium carboxymethylcellulose nibicuruzwa byera byera cyangwa byera cyangwa ibikoresho bya granulaire bifite amazi meza kandi meza ya rheologiya. Ikoreshwa cyane nkumubyimba, stabilisateur, binder, na rheologiya ihindura inganda zitandukanye, harimo ibiryo, imiti, imiti yo kwisiga, imyenda, hamwe ninganda zikoreshwa mu nganda.