Waa maxay saamaynta hantida haynta biyaha ee ether cellulose?

Guud ahaan hadalka, viscosity eehydroxypropyl methylcellulosewuu sarreeyaa, laakiin waxay sidoo kale ku xidhan tahay heerka beddelka iyo celceliska heerka beddelka. Hydroxypropyl methylcellulosewaa ether cellulose ah oo aan ionic ahayn oo leh muuqaal budo cad ah oo aan lahayn ur aan dhadhamin, ku milma biyaha iyo inta badan dareerayaasha dabiiciga ah ee polar iyo saamiga ku habboon ethanol / biyaha, propanol / biyaha, dichloroethane, iwm, oo aan ku milmin acetone iyo ethanol dhammaystiran, ku barara kolloid cad ama xoogaa daruuro leh oo ku jira xal biyo qabow. Xalka aqueous wuxuu leeyahay dhaqdhaqaaq dusha sare ah, wuxuu sameeyaa filim khafiif ah ka dib qalajinta, wuxuu maraa isbeddel la bedeli karo oo ka soo sol ilaa jel si isku xigta marka la kululeeyo iyo qaboojinta. Daah-furnaan sare iyo waxqabad deggan.

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, haynta biyaha, xasilloonida cabbirka, hantida filim samaynta aadka u fiican, caabbinta enzym ballaaran oo ballaadhan, kala-baxsanaan iyo isku-duubnaan.

Thehaynta biyahaBadeecooyinka hydroxypropyl methylcellulose waxaa badanaa saameeya arrimaha soo socda:

1. Midnimada hydroxypropyl methylcellulose

Hydroxypropyl methylcellulose, methoxyl iyo hydroxypropoxyl oo si isku mid ah looga 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.