Carboxymethylcellulose (CMC) ndi mapadi onse ndi ma polysaccharides okhala ndi katundu ndi ntchito zosiyanasiyana. Kumvetsetsa kusiyana kwawo kumafuna kufufuza mapangidwe awo, katundu, chiyambi, njira zopangira, ndi ntchito.
Ma cellulose:
1. Tanthauzo ndi kamangidwe:
Cellulose ndi polysaccharide yachilengedwe yopangidwa ndi maunyolo amtundu wa β-D-glucose mayunitsi olumikizidwa ndi β-1,4-glycosidic bond.
Ndilo gawo lalikulu la makoma a cell cell, kupereka mphamvu ndi kusasunthika.
2. Gwero:
Cellulose ndi yochuluka mwachilengedwe ndipo imachokera ku zomera monga nkhuni, thonje ndi zinthu zina za ulusi.
3. Kupanga:
Kupanga kwa cellulose kumaphatikizapo kuchotsa cellulose kuchokera ku zomera ndikuyikonza kudzera mu njira monga kupaka mankhwala kapena kugaya ndi makina kuti mupeze fiber.
4. Kachitidwe:
Mwachilengedwe, mapadi sasungunuke m'madzi komanso ma organic solvents.
Ili ndi mphamvu zolimba kwambiri, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsa ntchito pomwe mphamvu ndi kulimba ndizofunikira.
Cellulose ndi biodegradable komanso wokonda chilengedwe.
5. Kugwiritsa ntchito:
Ma cellulose ali ndi ntchito zosiyanasiyana, kuphatikiza kupanga mapepala ndi bolodi, nsalu, mapulasitiki opangidwa ndi cellulose, komanso ngati chowonjezera cha fiber.
Carboxymethylcellulose (CMC):
1. Tanthauzo ndi kamangidwe:
Carboxymethylcellulose (CMC) ndi chochokera ku cellulose momwe magulu a carboxymethyl (-CH2-COOH) amalowetsedwa ku msana wa cellulose.
2. Kupanga:
CMC nthawi zambiri imapangidwa pochiza cellulose ndi chloroacetic acid ndi alkali, zomwe zimapangitsa kuti m'malo mwa magulu a hydroxyl mu cellulose ndi magulu a carboxymethyl.
3. Kusungunuka:
Mosiyana ndi mapadi, CMC imasungunuka m'madzi ndipo imapanga yankho la colloidal kapena gel kutengera kuchuluka kwake.
4. Kachitidwe:
CMC ili ndi katundu wa hydrophilic ndi hydrophobic, ndikupangitsa kuti ikhale yoyenera kugwiritsidwa ntchito mosiyanasiyana m'magawo azakudya, azamankhwala ndi mafakitale.
Ili ndi luso lopanga mafilimu ndipo imatha kugwiritsidwa ntchito ngati thickener kapena stabilizer.
5. Kugwiritsa ntchito:
CMC imagwiritsidwa ntchito m'makampani azakudya monga chowonjezera, chokhazikika komanso emulsifier muzinthu monga ayisikilimu ndi zovala za saladi.
Pazamankhwala, CMC imagwiritsidwa ntchito ngati chomangira pakupanga mapiritsi.
Amagwiritsidwa ntchito popanga kukula ndi kumaliza kwa mafakitale a nsalu.
kusiyana:
1. Kusungunuka:
Ma cellulose sasungunuka m'madzi, pomwe CMC imasungunuka m'madzi. Kusiyanasiyana kwa kusungunuka kumeneku kumapangitsa CMC kukhala yosunthika pamagwiritsidwe osiyanasiyana, makamaka m'mafakitale omwe amawakonda opangidwa ndi madzi.
2. Njira yopangira:
Kupanga kwa cellulose kumaphatikizapo kuchotsa ndi kukonza kuchokera ku zomera, pamene CMC imapangidwa kudzera mu ndondomeko yosintha mankhwala kuphatikizapo cellulose ndi carboxymethylation.
3. Kapangidwe:
Ma cellulose ali ndi mzere komanso wopanda nthambi, pomwe CMC ili ndi magulu a carboxymethyl omwe amamangiriridwa ku msana wa cellulose, opatsa mawonekedwe osinthidwa omwe amasungunuka bwino.
4. Kugwiritsa ntchito:
Cellulose imagwiritsidwa ntchito makamaka m'mafakitale monga mapepala ndi nsalu kumene mphamvu zake ndi kusasungunuka zimapereka ubwino.
Komano, CMC imagwiritsidwa ntchito m'mafakitale osiyanasiyana, kuphatikiza chakudya, mankhwala ndi zodzoladzola, chifukwa cha kusungunuka kwake kwamadzi komanso kusinthasintha.
5. Katundu wathupi:
Ma cellulose amadziwika chifukwa cha kulimba kwake komanso kusasunthika, zomwe zimathandiza kuti zomera zisamawonongeke.
CMC imatenga zinthu zina za cellulose komanso imakhala ndi zina, monga kuthekera kopanga ma gels ndi mayankho, ndikuwapatsa mitundu ingapo yamagwiritsidwe.
Ngakhale mapadi a cellulose ndi carboxymethyl cellulose ali ndi chiyambi chofanana, mapangidwe awo ndi katundu wawo wapangitsa kuti azigwiritsidwa ntchito mosiyanasiyana m'mafakitale osiyanasiyana. Kulimba kwa cellulose komanso kusasungunuka kwa cellulose kumatha kukhala kopindulitsa nthawi zina, pomwe kusungunuka kwamadzi kwa CMC ndi kapangidwe kake kosinthidwa kumapangitsa kuti ikhale yofunika kwambiri pazogulitsa ndi mapangidwe osiyanasiyana.
Nthawi yotumiza: Dec-26-2023