Guud ahaan marka la hadlo, viscosity ee hydroxypropyl methylcellulose ayaa ka sarreeya.Si kastaba ha ahaatee, waxay sidoo kale ku xiran tahay heerka beddelka iyo celceliska heerka beddelka.Hydroxypropyl methyl cellulose waxaa iska leh ether-ka aan-ionic cellulose, muuqaalku waa budo cad, ur aan ur lahayn, dhadhamin, ku milmi biyaha iyo inta badan dareerayaasha organic polar iyo saamiga saxda ah ee ethanol / biyaha, propanol / biyaha, dichlorethylene Waa mid aan milmi karin alkanes, acetone, iyo ethanol dhammaystiran, oo barara galay xal kolloidal cad ama wax yar turbid biyo qabow.Xalka aqueous wuxuu leeyahay hawlo dusha sare ah, wuxuu sameeyaa filim khafiif ah ka dib qalajinta, wuxuu maraa isbeddelka rogaal celiska ah ee sol ilaa jel ee isku xigta marka la kululeeyo iyo qaboojinta.Daah-furnaan sare iyo waxqabad xasilloon.
Hydroxypropyl methylcellulose waxay leedahay hantida gelation kulaylka.Ka dib markii xalka aqueous ee alaabta la kululeeyo, waxay samaysaa jel oo soo daadi, oo milaan ka dib qaboojinta.Heerkulka gelation ee tilmaamo kala duwan ayaa ka duwan.Solubility wuxuu ku kala duwan yahay viscosity.Maqnaanshaha hoose, waa ka sii weynaanta milanka.Astaamaha hydroxypropyl methylcellulose oo leh tilmaamo kala duwan ayaa kala duwan.Kala dirida hydroxypropyl methylcellulose ee biyaha ma saameynayso qiimaha pH.
Astaamaha: Waxay leedahay sifooyinka awoodda dhumucda, dheecaanka milixda, xasilloonida PH, ilaalinta biyaha, xasilloonida cabbirka, hantida filim samaynta aadka u fiican, caabbinta enzymes ballaaran, kala-baxsanaanta iyo isku-duubnida.
Haysashada biyaha ee alaabta hydroxypropyl methylcellulose waxaa badanaa saameeya arrimaha soo socda:
1. Midnimada hydroxypropyl methylcellulose
Hydroxypropyl methylcellulose, methoxyl iyo hydroxypropoxyl oo si isku mid ah uga falceliyay ayaa si siman loo qaybiyay, heerka haynta biyuhuna waa sarreeyaa.
2. Hydroxypropyl methylcellulose heerkulka jelka kulaylka
Heerkulka jelka kuleylka ee sarreeya, ayaa sarreeya heerka haynta biyaha;haddii kale, waa yaraanta heerka haynta biyaha.
3. Viscosity of hydroxypropyl methylcellulose
Marka viscosity of hydroxypropyl methylcellulose kordho, heerka haynta biyaha sidoo kale kordhisaa;marka viscosity gaaro heer gaar ah, kororka heerka haynta biyuhu waxay u egtahay mid dabacsan.
4. Qadarka hydroxypropyl methylcellulose lagu daray
Inta badan xaddiga hydroxypropyl methylcellulose ee lagu daray, ayaa sarreeya heerka haynta biyaha iyo si fiican u yeelashada biyaha.Inta u dhaxaysa 0.25-0.6% ee dheeraadka ah, xajinta biyaha ayaa si degdeg ah u kordheysa iyadoo la kordhinayo qadarka dheeraadka ah;marka lacagta dheeriga ah ay sii korodho, korodhka korodhka xadiga biyaha ayaa hoos u dhacaya.
Waqtiga boostada: Mar-14-2023