Cellulose ether ndi polymer yopanga policle yopangidwa kuchokera ku cellulose yachilengedwe kudzera mu kusintha mankhwala. Cellulose ether ndi zochokera ku cellulose yachilengedwe. Kupanga kwa cellulose ether ndi kosiyana ndi opanga ma polima. Zida zake zoyambirira ndizopenchera, kuphatikiza kwachilengedwe kwa polymer. Chifukwa cha kuchuluka kwa kapangidwe ka cellulose, cellulose yomwe ilibe mphamvu yokhudzana ndi othandizira. Komabe, pambuyo pa mankhwalawa a wothandizira wazotupa, maunyolo a hydrogen pakati pa unyolo wazomwe unyolowo ndi maunyolowo adawonongedwa, ndipo kutulutsidwa kwa Hydroxyyl kumakhala kwa cellulose ya alkali. Pezani ether ether.
Mphamvu za cellulose eder zimatengera mtundu, chiwerengero ndi kufalitsa m'malo opezekapo. Kugawika kwa cellulose kumachitikanso pamtundu wa mipweya yambiri, digiri ya kukongoletsa, kusungunuka komanso ntchito zokhudzana ndi ntchito. Malinga ndi mtundu wa magalamure pa ma molecular cheni, imatha kugawidwa mu monoether ndi osakaniza. Nthawi zambiri timagwiritsa ntchito MC ngati monoether, ndi hpmc ngati ether. Methyl cellulose ether mc ndiye chinthucho pambuyo pa gulu la hlucoxyl pagawo la glucose la cellulose ya chilala chagawidwa ndi gulu la methoxy. Ndi chinthu chomwe chimapangidwa ndi gawo la gulu la hydroxyl pa unit ndi gulu lina la methoxy ndi gawo lina lokhala ndi gulu la hydroxypyl. Njira yoyesererayo ili [CE) (O) 3-MN) M [THE) T] Th3] Ah vhdroxyethyl exerose exula.
Potengera kusungunuka, imatha kugawidwa mu ionic komanso yosakhala ionic. Madzi osungunuka amadzi osakhala a celluse a ionic amakhala ndi mndandanda wa ma alkyl angapo a ma alkyl, ndi hydroxyalkyl et. Ionic CMC imagwiritsidwa ntchito makamaka popanga zotupa, kusindikiza mwadongosolo ndi kupanikizika ndi kufufuza kwamafuta. Opanda MC, HPMC, hemoc, etc. amagwiritsidwa ntchito makamaka m'magulu omanga, mankhwala tsiku lililonse, okhazikika, osokoneza bongo, omwe amawapatsa.
Post Nthawi: Nov-24-2022