Polyanionic cellulose (PAC) iyo sodium carboxymethyl cellulose (CMC) waa laba nooc oo ethers cellulose ah kuwaas oo leh qaab-dhismeedka kiimikada isku mid ah iyo sifooyinka, laakiin ku kala duwan yihiin qaar ka mid ah dhinacyada muhiimka ah.

PAC waa eter cellulose-ka biyaha ku milma taas oo leh heerar sare oo beddel ah, taasoo la macno ah in tiro badan oo ah kooxaha karboksymethyl ay ku dheggan yihiin laf dhabarta cellulose. PAC waxaa caadi ahaan loo istcimaalaa sida maqaar-fure iyo yareeya luminta dareeraha ee dareeraha qodista saliidda sababtoo ah xajinteeda wanaagsan ee biyaha, xasiloonida, iyo sifooyinka dhumucdooda.

CMC, dhanka kale, waa ether-ka cellulose-ka biyaha ku milma taas oo si weyn loogu isticmaalo dhumuc, xidhidhiyaha, iyo xasilinta warshadaha kala duwan, oo ay ku jiraan cuntada, daawooyinka, qurxinta, iyo wax soo saarka waraaqaha. CMC waxaa soo saara falcelinta cellulose leh monochloroacetic acid si loogu soo bandhigo kooxaha karboksymethyl ee laf dhabarta cellulose. Heerka beddelka CMC waa ka hooseeyaa ta PAC, laakiin wali waxay siisaa haynta biyaha wanaagsan, xasilloonida, iyo guryaha dhumucda.

Inkasta oo PAC iyo CMC labaduba ay yihiin ethers cellulose leh oo leh sifooyin isku mid ah, waxay ku kala duwan yihiin dhinacyo muhiim ah. Tusaale ahaan, PAC waxaa sida caadiga ah loo isticmaalaa in warshadaha qodista saliidda ay sabab u tahay heerka sare ee beddelka iyo hoos u dhac guryaha aadka u fiican, halka CMC loo isticmaalo in tiro balaadhan oo ah warshadaha ay sabab u tahay heerka hoose ee beddelka iyo rogrogmi karo ee codsiyada kala duwan.

Guud ahaan, PAC iyo CMC labaduba waa ether-ka cellulose-ka muhiimka ah oo leh sifooyin iyo codsiyo gaar ah. Iyadoo PAC inta badan loo isticmaalo warshadaha qodista saliida, CMC waxay leedahay codsiyo balaadhan oo kala duwan ee warshado kala duwan taas oo ay ugu wacan tahay kala duwanaanshaheeda iyo heerka hoose ee beddelka.