Polyanionic Cellulose (PAC) iyo Sodium Carboxymethyl Cellulose (CMC)

Polyanionic cellulose (PAC) iyo sodium carboxymethyl cellulose (CMC) labaduba waa noocyo ka soo jeeda cellulose oo si weyn loogu isticmaalo warshado kala duwan si loo adkeeyo, loo xasiliyo, iyo sifadooda rheological. In kasta oo ay wadaagaan waxyaabo isku mid ah, haddana waxay leeyihiin kala duwanaansho kala duwan marka loo eego qaab-dhismeedka kiimikada, sifooyinka, iyo codsiyada. Waa kan isbarbardhigga PAC iyo CMC:

1. Qaab-dhismeedka Kiimikada:
   • PAC: Polyanionic cellulose waa polymer-ka biyaha ku milma ee laga soo saaro cellulose iyadoo la soo bandhigayo carboxymethyl iyo kooxo kale oo anionic ah oo ku jira laf-dhabarta cellulose. Waxay ka kooban tahay kooxo badan oo carboxyyl ah (-COO-) oo ku teedsan silsiladda cellulose, taasoo ka dhigaysa mid aad u anionic ah.
   • CMC: Sodium carboxymethyl cellulose sidoo kale waa polymer-ka biyaha ku milma ee laga helo cellulose, laakiin waxay martaa hab gaar ah oo carboxymethylation ah, taasoo keenta in kooxaha hydroxyl (-OH) lagu beddelo kooxaha carboxymethyl (-CH2COONa). CMC caadi ahaan waxay ka kooban tahay kooxo carboxyl oo yar marka loo eego PAC.
2. Dabeecadda Ionic:
   • PAC: Polyanionic cellulose waa mid aad u anionic ah sababtoo ah joogitaanka kooxo badan oo carboxyl ah oo ku yaal silsiladda cellulose. Waxay muujisaa sifooyin xooggan oo is-weydaarsiga ion-ka ah waxaana badanaa loo isticmaalaa sidii wakiilka xakamaynta shaandhaynta iyo wax-ka-beddelka rheology-ga ee dareeraha qodista biyaha ku salaysan.
   • CMC: Sodium carboxymethyl cellulose sidoo kale waa anionic, laakiin heerka anionicity-gu wuxuu ku xiran yahay heerka beddelka (DS) ee kooxaha carboxymethyl. CMC waxaa badanaa loo isticmaalaa sidii wax ka beddele dhumuc leh, xasiliya, iyo viscosity codsiyo kala duwan, oo ay ku jiraan cuntada, daawooyinka, iyo alaabada daryeelka shakhsi ahaaneed.
3. Viscosity iyo Rhology:
   • PAC: Polyanionic cellulose waxay muujisaa daxal sare iyo hab-dhaqan khafiifin ah oo ku jira xalka, taasoo ka dhigaysa mid wax ku ool ah sida wax-ka-beddele dhumuc iyo rheology ah oo ku jira dareerayaasha qodista iyo codsiyada kale ee warshadaha. PAC waxay u adkeysan kartaa heerkulka sare iyo heerarka milixda ee laga helo hawlgallada goobta saliidda.
   • CMC: Sodium carboxymethyl cellulose sidoo kale waxay muujisaa sifooyinka viscosity iyo rheology-ga, laakiin viscosity-geedu badanaa wuu ka hooseeyaa marka loo eego PAC. CMC waxay samaysaa xalal deggan oo been abuur ah, taasoo ka dhigaysa mid ku habboon codsiyo badan, oo ay ku jiraan cuntada, qurxinta, iyo daawooyinka.
4. Codsiyada:
   • PAC: Polyanionic cellulose waxaa inta badan loo isticmaalaa warshadaha saliidda iyo gaaska sida wakiilka xakamaynta shaandhaynta, wax ka beddelka rheology-ga, iyo yaraynta khasaaraha dareeraha ee dareeraha qodista. Waxa kale oo loo isticmaalaa codsiyada kale ee warshadaha sida qalabka dhismaha iyo hagaajinta deegaanka.
   • CMC: Sodium carboxymethyl cellulose waxay leedahay codsiyo kala duwan oo warshado kala duwan ah, oo ay ku jiraan cuntada iyo cabitaannada (sida dhumuc-dhegeeyaha iyo xasiliyaha), daawooyinka (sida xidhmo iyo kala-goyn), alaabada daryeelka shakhsi ahaaneed (sida wax-ka-beddele rheology), dharka (sida wakiilka cabbirka), iyo soo saarista warqadda (sida wax lagu daro warqadda).

halka labada polyanionic cellulose (PAC) iyo sodium carboxymethyl cellulose (CMC) ay yihiin derivative cellulose oo leh sifooyin anionic ah iyo codsiyo la mid ah warshadaha qaar, waxay leeyihiin kala duwanaansho kala duwan marka loo eego qaab-dhismeedka kiimikada, sifooyinka, iyo codsiyada gaarka ah. PAC waxaa inta badan loo isticmaalaa warshadaha saliidda iyo gaaska, halka CMC ay ka hesho codsiyo ballaaran cuntada, daawooyinka, daryeelka shakhsi ahaaneed, dharka, iyo warshadaha kale.