Focus on Cellulose ethers

Nooca degdega ah ee hydroxypropyl methylcellulose

Nooca degdega ah ee hydroxypropyl methylcellulose

1. Biyaha ku jira oo aad u sarreeya, taas oo keenta in maadada aad u yar tahay, taas oo u dhiganta hoos u dhigista xoojinta xalka.
2. Viscosity-ku wuu hooseeyaa, iyo viscosity-ka la calaamadeeyay qaarkood kuma eka viscosity-ka dhabta ah.
3. Walaaq xitaa ka dib markaad ku darto maaddooyinka, haddii kale waxay noqon doontaa lakab, khafiif ah xagga sare iyo dhumucda hoose.
4. Qiimaha PH ee biyaha: Haddii qiimaha PH ee biyuhu ka weyn yahay 8, xitaa haddii lagu daro walaaqaya, si dhakhso ah uma dhisi doono xal viscous ah. (Laakin ma noqon doonto mid gaabis ah sida 20 saacadood). Haddii qiimaha pH ee biyuhu uu ka yar yahay 6.5, waa la kicin karaa xitaa ka dib marka lagu daro alaabta. Laakiin waxay sidoo kale u baahan tahay waqti go'an oo lagu milmo. Waqtigaan wali wuxuu la xiriiraa qiimaha pH. Marka pH-gu hoos u dhaco, waqtiga ayaa sii dheeraanaya. Waxaa lagu talinayaa in lagu daro biyo dhexdhexaad ah, ka dibna la hagaajiyo qiimaha pH ee alkaline, waxayna si dhakhso ah u samayn doontaa joogtayn. Dabcan, guud ahaan looma baahna hagaajin gaar ah ee isticmaalka dhabta ah, iyo inta badan alaabta kale waxay si toos ah u kordhin doonaan qiimaha pH.


Waqtiga boostada: Jan-27-2023
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