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. Gulu la ethel ether ether limadziwikanso molingana ndi mtundu wa mpweya wambiri, digiri ya kukonzekera, kusungunuka komanso ntchito zokhudzana ndi ntchito. Malinga ndi mtundu wa magalamure pa ma molecular cheni, imatha kugawidwa mu monoether ndi osakaniza. MC nthawi zambiri timagwiritsa ntchito ndi monoether, ndipo HPMC imasakaniza ether. Methyl cellulose ether mc ndiye chinthucho pambuyo pa gulu la hydroxyl pa gawo la glucose la cellulose yazachilengedwe yagawidwa ndi 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.
Kuzindikiritsa Mtundu wa Etherse:
Zotsatira za methoxyl zomwe zili pamtundu: kusungidwa kwamadzi komanso ntchito yotsatsira
Khalidwe labwino la hydroxyathoxyl / hydroxypropoxyl: okwera kwambiri, kusungitsa kwamadzi.
Mphamvu ya mafayilo: Kukwera kwambiri kwa polymerization, chidwi cha ma vionecwo komanso kukonza bwino.
Chisonkhezero cha zabwino: The Forer incuperpecation ndi kusungunuka m'matope, yunifolomu yachangu ndi yunifomu ili, ndipo kusungidwa kwa madzi ndikwabwino
Mphamvu zapamwamba zopepuka: Kukwera kwambiri kwa polymerization, yunifolomu yofanana ndi polymerization, komanso zosawoneka bwino
Kutentha kwa GEL: Kutentha kwa gel kuti kumangidwa kuli pafupifupi 75 ° C
Mphamvu yamadzi: <5%, cellulose ether ndiosavuta kuyamwa chinyezi, kotero ziyenera kusindikizidwa ndikusungidwa
Zotsatira za phulusa: <3%, phulusa lapamwamba, zosayera
PH Chuma Chabwino: Kuyandikira kosagwirizana, ma cellulose ether ali ndi magwiridwe a PH: 2-11
Post Nthawi: Feb-14-2023