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Hydroxypropyl Methyl Cellulose (HPMC)
Hydroxypropyl methyl cellulose, sauƙaƙa da propyl methyl cellulose (HPMC hydroxypropylmethylcellulose, taƙaitaccen bayani), shi ne ya kasance cikin wani iri-iri na gauraye wadanda ba ionic cellulose ether. Semi-synthetic ne, mara aiki, polymer viscoelastic da aka saba amfani da shi a fannin ilimin ido azaman mai mai, ko azaman abin ƙarawa ko ƙari a cikin magungunan baka, galibi ana samun su a cikin kayayyaki iri-iri. Hydroxypropyl cellulose za a iya amfani da a matsayin abinci ƙari, emulsifier, thickener, dakatarwa wakili da dabba gelatin maye.
ABUBUWA BAYANI Bayyanar Farin Foda Rushewar Zazzabi 200 min Zazzabi mai canza launi 190-200 ℃ Dankowar jiki 400 Farashin PH 5 ~ 8 Yawan yawa 1.39g/cm 3 zafin jiki na carbonization 280-300 ℃ Nau'in Matsayin abinci Abun ciki 99% Tashin hankali 42-56dyne/cm don 2% maganin ruwa -
Hydroxypropyl Methylcellulose (MHPC)
Hydroxypropyl methylcellulose (MHPC) ba su da wari, marasa ɗanɗano, ethers cellulose marasa guba waɗanda suka sami ƙungiyoyin hyrdroxyl akan sarkar cellulose da aka maye gurbinsu da ƙungiyar methoxy ko hydroxypropyl tare da ingantaccen ruwa mai narkewa. HPMC F60S babban darajar danko ne wanda ake amfani dashi azaman mai kauri, ɗaure, da fim wanda ya gabata a cikin kayan aikin gona, sutura, yumbu, adhesives, tawada, da sauran aikace-aikace daban-daban.
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Hydroxyethyl Cellulose (HEC)
Hydroxyethyl Cellulose (HEC) ne wanda ba ionic, ruwa-soluble polymer samu form cellulose ta hanyar jerin sunadarai da kuma jiki tafiyar matakai.HEC ne a fari zuwa haske yellowish, wari da m foda, shirye-shirye mai narkewa a cikin ruwan zafi ko sanyi don samar da wani viscous gel bayani.Lokacin da pH a cikin bayani 2 zuwa 12, da bayani ne quite barga. Tun da HEC kungiyar ne nonionic daya a cikin ruwa bayani, shi ba za a reacted tare da sauran anions ko cations da m ga salts.
Amma HEC kwayoyin yana da ikon haifar da esterification, etherification, don haka yana yiwuwa a sanya shi cikin ruwa marar narkewa ko inganta kayansa.
