Focus on Cellulose ethers

Astaamaha CMC

Astaamaha CMC

Sodium carboxymethyl cellulose (CMC) waa polymer biyo-milmi leh oo laga soo qaatay cellulose, polymer dabiici ah oo laga helo gidaarada unugyada dhirta.Waa kuwan qaar ka mid ah sifooyinka muhiimka ah ee CMC:

  1. Biyuhu milmayn: CMC aad bay ugu milmay biyaha iyo xalalka kale ee aqueous, samaynta xalal turbid cad ama wax yar.
  2. Viscosity: CMC waxay samayn kartaa xalal aad u sarreeya, taas oo ku xidhan heerka beddelka, miisaanka kelli, iyo feejignaanta.Waxaa caadi ahaan loo isticmaalaa sidii dhumuc iyo beddele rheology codsiyo kala duwan.
  3. Xasiloonida pH: CMC waxay ku xasilloon tahay tiro balaadhan oo ah qiyamka pH, sida caadiga ah laga bilaabo pH 2 ilaa 12. Waxay sii wadi kartaa dhumucdeeda iyo xasilinta guryaha ee acidic, dhexdhexaad, iyo xaaladaha alkaline.
  4. Dareenka xoogga Ionic: CMC waxaa saameyn ku yeelan kara xoogga ionic ee xalka.Waxay samayn kartaa jeel daciif ah ama waxay lumin kartaa sifooyinkeeda dhumucyada xaaladaha milixda badan.
  5. Hygroscopicity: CMC waa hygroscopic, taasoo la micno ah inay nuugi karto qoyaanka deegaanka.Hantidani waxay saamayn kartaa maaraynteeda, kaydinteeda, iyo waxqabadkeeda codsiyada qaarkood.
  6. Guryaha sameynta filimada: CMC waxay sameyn kartaa filimo dabacsan oo hufan marka ay engegto.Waxaa loo isticmaali karaa sida walxaha dahaarka ama binder ee codsiyada kala duwan.
  7. Biodegradability: CMC waa biodegradable iyo deegaan saaxiibtinimo.Waxaa hoos u dhigi kara enzymes ay soo saaraan microorganisms ciidda ama biyaha.

Guud ahaan, sodium carboxymethyl cellulose waa polymer-ka badan oo leh noocyo kala duwan oo hanti ah oo ka dhigaya mid waxtar u leh codsiyada kala duwan, sida cuntada, daawooyinka, daryeelka shakhsi ahaaneed, iyo alaabta warshadaha.


Waqtiga boostada: Mar-21-2023
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