Viscosity ee Ethers Cellulose

viscosity eeethers cellulosewaa hanti muhiim ah oo go'aamisa waxtarkeeda codsiyada kala duwan. Ethers Cellulose, sida Hydroxypropyl Methylcellulose (HPMC), Hydroxyethyl Cellulose (HEC), iyo kuwa kale, waxay muujiyaan sifooyinka viscosity kala duwan taas oo ku xidhan arrimo ay ka mid yihiin heerka beddelka, miisaanka kelli, iyo xoogga saarida xalka. Halkan waxaa ah dulmar kooban:

1. Heerka Beddelka (DS):
   • Heerka beddelka waxa loola jeedaa tirada celceliska ee hydroxyethyl, hydroxypropyl, ama kooxaha kale ee lagu soo bandhigay unugga anhydroglucose ee silsiladda cellulose.
   • Sare u kaca DS guud ahaan wuxuu keenaa viscosity sare.
2. Miisaanka Molecular:
   • Miisaanka molecular ee ethers cellulose waxay saameyn kartaa viscositykooda. Polymers-ka miisaanka kelliga ah ee sarreeya ayaa badanaa keena xalalka viscosity-ka sare.
3. Xoog-saarista:
   • Viscosity-ku wuxuu ku tiirsan yahay diiradda. Marka diirada etherka cellulose ee xalka uu kordho, sidaas oo kale viscosity ayaa kordha.
   • Xiriirka ka dhexeeya feejignaanta iyo viscosity ma noqon karo mid toosan.
4. Heerkulka:
   • Heerkulka wuxuu saameyn karaa milanka iyo viscosity ethers cellulose. Xaaladaha qaarkood, viscosity ayaa laga yaabaa inuu hoos u dhaco heerkulka sii kordhaya sababtoo ah milanka oo soo fiicnaaday.
5. Nooca Eter-ka Cellulose:
   • Noocyada kala duwan ee ethers cellulose waxay yeelan karaan muuqaalo viscosity kala duwan. Tusaale ahaan, Hydroxypropyl Methylcellulose (HPMC) waxaa laga yaabaa inay soo bandhigto sifooyin viscosity oo kala duwan marka loo eego Hydroxyethyl Cellulose (HEC).
6. Xaaladaha xalinta ama xalinta:
   • Doorashada xalalka dareeraha ama xalalka (pH, xoogga ionic) waxay saameyn kartaa viscosity ethers cellulose.

Codsiyada ku saleysan Viscosity:

1. Mawjad hoose:
   • Loo isticmaalo codsiyada halka dhumuc hoose ama joogtayn la doonayo.
   • Tusaalooyinka waxaa ka mid ah dahaarka qaarkood, codsiyada buufinta, iyo qaababka u baahan shubid fudud.
2. Viscosity dhexdhexaad ah:
   • Inta badan loo isticmaalo warshadaha kala duwan ee codsiyada sida xabagta, waxyaalaha la isku qurxiyo, iyo cuntooyinka qaarkood.
   • Waxay ku dhufataa dheelitirka u dhexeeya dareeraha iyo dhumucda.
3. Viscosity Sare:
   • Loo door bidayo codsiyada halka saamaynta dhumucdi ama gelling ay muhiim u tahay.
   • Loo isticmaalo habaynta dawooyinka, agabka dhismaha, iyo alaabta cunnada ee viscosity-ka sareeyo.

Cabbirka Viscosity:

Viscosity inta badan waxaa lagu cabbiraa iyadoo la isticmaalayo viscometers ama rheometer. Habka gaarka ahi wuu kala duwanaan karaa iyadoo lagu saleynayo nooca etherka cellulose iyo codsiga loogu talagalay. Viscosity waxaa sida caadiga ah lagu soo warramey unugyo sida centipoise (cP) ama mPa·s.

Waa muhiim in la tixgeliyo kala duwanaanshaha viscosity ee la rabo codsi gaar ah oo aad doorato darajada etherka cellulose si waafaqsan. Soo-saarayaashu waxay bixiyaan xaashi xog farsamo oo qeexaysa sifooyinka viscosity ethers-kooda cellulose iyadoo lagu jiro xaalado kala duwan.