Sunan samfur:hydroxyethyl methyl celluloseHEMC
Sunan Ingilishi: Hymetellose
Alade: methyl hydroxyethyl cellulose; MHEC, hydroxyethyl methyl cellulose ether;
hydroxymethyl ethyl cellulose; 2-hydroxyethyl methyl ether cellulose
Sunan Ingilishi: Methylhydroxyethylcellulose; Cellulose; 2-hydroxyethyl methyl ether; HEMC; Tyopur MH[1]
Chemistry: Hydroymethylmethylecellulose; Hydroxyethylmethylcellulose; Hydroxymethylethylcellulose.
Molecules: C2H6O2 xCH4O x PhEur 2002 yana bayyana hydroxyethylmethylcellulose azaman partially O-methylated, partially O-hydroxymethylated cellulose. An bayyana mabambantan ƙayyadaddun bayanai cikin sharuddan bayyananniyar danko a cikin mPas na 2% w/v bayani mai ruwa a 20°C.
Nauyin kwayoyin halitta: PhEur 2002 ya bayyana hydroxyethylmethylcellulose a matsayin partially O-methylated, partially O-hydroxymethylated cellulose. An bayyana mabambantan ƙayyadaddun bayanai cikin sharuddan bayyananniyar danko a cikin mPas na 2% w/v bayani mai ruwa a 20°C.
Babban halayen hydroxyethyl methyl cellulose (HEMC) sune:
1. Solubility: mai narkewa a cikin ruwa da wasu magungunan kwayoyin halitta, HEMC za'a iya narkar da shi a cikin ruwan sanyi, matsakaicin matsakaicin girmansa kawai an ƙaddara shi ta hanyar danko, rashin daidaituwa ya bambanta da danko, ƙananan danko, mafi girma da solubility.
2. Gishiri juriya: Abubuwan HEMC ba su ne ethers cellulose ba na ionic kuma ba polyelectrolytes ba, don haka a gaban salts na karfe ko kwayoyin halitta, suna da kwanciyar hankali a cikin maganin ruwa mai ruwa, amma ƙari mai yawa na electrolytes na iya haifar da gelation da hazo.
3. Surface aiki: Kamar yadda mai ruwa bayani yana da surface ayyuka aiki, shi za a iya amfani da colloid m wakili, emulsifier da dispersant.
4. Thermal Gel: Lokacin da samfurin HEMC mai ruwa ya yi zafi zuwa wani zafin jiki, ya zama maras kyau, gels, kuma ya haifar da hazo, amma idan an ci gaba da sanyaya shi, ya dawo zuwa yanayin maganin asali, kuma wannan gel da hazo yana faruwa. . Yawan zafin jiki ya dogara ne akan man shafawa, abubuwan dakatarwa, colloid masu kariya, emulsifiers, da sauransu.
5. Rashin kuzari da rashin wari da kamshi: HEMC ana amfani da shi sosai wajen abinci da magunguna domin ba ya narkewa kuma ba shi da wari da kamshi.
6. Antifungal: HEMC yana da ikon maganin rigakafi mai kyau da kwanciyar hankali mai kyau a lokacin ajiya na dogon lokaci.
7. PH kwanciyar hankali: The danko na HEMC samfurin ruwa bayani ne wuya a shafi acid ko alkali, da kuma pH darajar ne in mun gwada da barga a cikin kewayon 3.0-11.0.
Aikace-aikace: Hydroxyethyl methyl cellulose za a iya amfani da colloid m wakili, emulsifier da dispersant saboda da surface aiki aiki na ruwa bayani. Misalin aikace-aikacensa shine kamar haka: Tasirin hydroxyethyl methyl cellulose akan kaddarorin siminti. Hydroxyethyl methylcellulose wani wari ne, marar ɗanɗano, farin foda mara guba wanda ke narkewa a cikin ruwan sanyi don samar da bayani mai haske, mai danko. Yana yana da kaddarorin thickening, dauri, watsawa, emulsifying, film-forming, suspending, adsorbing, gelling, surface-aiki, rike danshi da kuma kare colloid. Saboda aikin aiki na farfajiya na maganin ruwa, ana iya amfani dashi azaman wakili mai kariya na colloid, emulsifier da mai watsawa. Hydroxyethyl methyl cellulose bayani mai ruwa-ruwa yana da kyau hydrophilicity kuma shi ne babban tasiri mai riƙe ruwa.
Lokacin aikawa: Oktoba-09-2022