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Hydroxypropyl Methyl Cellulose (HPMC)
Hydroxypropyl methyl cellulose, jẹ ki o rọrun propyl methyl cellulose (HPMC hydroxypropylmethylcellulose, abbreviation), o jẹ lati jẹ ti ọpọlọpọ awọn ether cellulose ti kii-ionic ti a dapọ. O jẹ ologbele-sintetiki, aiṣiṣẹ, polima viscoelastic ti o wọpọ ti a lo ninu ophthalmology bi lubricant, tabi bi alayọ tabi alayọ ninu awọn oogun ẹnu, ti a rii ni ọpọlọpọ awọn ọja lọpọlọpọ. Hydroxypropyl cellulose le ṣee lo bi aropo ounjẹ, emulsifier, thickener, oluranlowo idadoro ati aropo gelatin ẹranko.
NKANKAN AWỌN NIPA Ifarahan Funfun Powder Iparun otutu 200 iṣẹju Discoloration otutu 190-200 ℃ Igi iki 400 Iye owo PH 5~8 iwuwo 1.39g/cm3 Carbonization otutu 280-300 ℃ Iru Ounjẹ ite Akoonu 99% Dada ẹdọfu 42-56dyne / cm fun 2% olomi ojutu -
Hydroxypropyl Methylcellulose (MHPC)
Hydroxypropyl methylcellulose (MHPC) ko ni olfato, ti ko ni itọwo, awọn ethers cellulose ti kii ṣe majele ti o ti ni awọn ẹgbẹ hyrdroxyl lori pq cellulose ti o rọpo fun methoxy tabi ẹgbẹ hydroxypropyl pẹlu solubility omi to dara. HPMC F60S jẹ ipele viscosity giga eyiti o lo bi apọn, binder, ati fiimu ti iṣaaju ni awọn agrochemicals, awọn aṣọ, awọn ohun elo amọ, adhesives, inki, ati ọpọlọpọ awọn ohun elo miiran.
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Hydroxyethyl Cellulose (HEC)
Hydroxyethyl Cellulose (HEC) jẹ ti kii-ionic, omi-tiotuka polima ti ari fọọmu cellulose nipasẹ kan lẹsẹsẹ ti kemikali ati ti ara ilana. viscous gel solution.Nigbati pH ni ojutu 2 si 12, ojutu naa jẹ iduroṣinṣin.Niwọn igba ti ẹgbẹ HEC jẹ ọkan ninu ojutu omi, kii yoo ṣe atunṣe pẹlu awọn anions miiran tabi awọn cations ati insensitive si awọn iyọ.
Ṣugbọn HEC moleku ni o lagbara ti o npese esterification, etherification, ki o jẹ ṣee ṣe lati ṣe awọn ti o insoluble ninu omi tabi mu awọn oniwe-ini.HEC tun ni o ni ti o dara film- lara agbara ati dada aṣayan iṣẹ-ṣiṣe.
