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

Polyanionic cellulose (PAC) ndi sodium carboxymethyl cellulose (CMC) zonse ndi zinthu zochokera ku cellulose zomwe zimagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana kuti zikhale zolimba, zokhazikika, komanso zogwira mtima. Ngakhale zili ndi zofanana zina, zimakhalanso ndi kusiyana kwakukulu pankhani ya kapangidwe ka mankhwala, katundu, ndi ntchito. Nayi kufananiza pakati pa PAC ndi CMC:

1. Kapangidwe ka Mankhwala:
   • PAC: Polyanionic cellulose ndi polima wosungunuka m'madzi wochokera ku cellulose poika carboxymethyl ndi magulu ena a anionic pamsana wa cellulose. Ili ndi magulu angapo a carboxyl (-COO-) motsatira unyolo wa cellulose, zomwe zimapangitsa kuti ikhale anionic kwambiri.
   • CMC: Sodium carboxymethyl cellulose ndi polima yosungunuka m'madzi yochokera ku cellulose, koma imadutsa munjira inayake ya carboxymethylation, zomwe zimapangitsa kuti magulu a hydroxyl (-OH) asinthidwe ndi magulu a carboxymethyl (-CH2COONa). CMC nthawi zambiri imakhala ndi magulu ochepa a carboxyl poyerekeza ndi PAC.
2. Chilengedwe cha Ionic:
   • PAC: Polyanionic cellulose ndi anionic kwambiri chifukwa cha kukhalapo kwa magulu angapo a carboxyl pamzere wa cellulose. Imakhala ndi mphamvu zosinthira ma ion ndipo nthawi zambiri imagwiritsidwa ntchito ngati chowongolera kusefa komanso chosinthira rheology mumadzi obowola pogwiritsa ntchito madzi.
   • CMC: Sodium carboxymethyl cellulose nayonso ndi anionic, koma kuchuluka kwa anionicity yake kumadalira kuchuluka kwa kusintha kwa magulu a carboxymethyl. CMC imagwiritsidwa ntchito kwambiri ngati chowonjezera, chokhazikika, komanso chosinthira kukhuthala m'njira zosiyanasiyana, kuphatikizapo chakudya, mankhwala, ndi zinthu zosamalira munthu payekha.
3. Kukhuthala ndi Kuzindikira kwa Magazi:
   • PAC: Polyanionic cellulose imakhala ndi kukhuthala kwakukulu komanso kuchepeta kwa shear mu yankho, zomwe zimapangitsa kuti ikhale yothandiza ngati chowonjezera kukhuthala komanso chosinthira rheology mumadzi obowola ndi ntchito zina zamafakitale. PAC imatha kupirira kutentha kwambiri komanso kuchuluka kwa mchere komwe kumakumana nako pantchito zamafuta.
   • CMC: Sodium carboxymethyl cellulose imasonyezanso mphamvu zosinthira kukhuthala ndi rheology, koma kukhuthala kwake nthawi zambiri kumakhala kotsika poyerekeza ndi PAC. CMC imapanga njira zokhazikika komanso zosalimba, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito m'njira zosiyanasiyana, kuphatikizapo chakudya, zodzoladzola, ndi mankhwala.
4. Mapulogalamu:
   • PAC: Polyanionic cellulose imagwiritsidwa ntchito makamaka mumakampani opanga mafuta ndi gasi ngati chowongolera kusefa, chosinthira rheology, komanso chochepetsa kutayika kwa madzi m'madzi obowola. Imagwiritsidwanso ntchito m'mafakitale ena monga zipangizo zomangira ndi kukonza chilengedwe.
   • CMC: Sodium carboxymethyl cellulose imagwiritsidwa ntchito m'mafakitale osiyanasiyana, kuphatikizapo zakudya ndi zakumwa (monga chokhuthala ndi chokhazikika), mankhwala (monga chomangirira ndi chochotsa), zinthu zosamalira thupi (monga chosinthira rheology), nsalu (monga choyezera kukula), ndi kupanga mapepala (monga chowonjezera mapepala).

pomwe polyanionic cellulose (PAC) ndi sodium carboxymethyl cellulose (CMC) zonse ndi zinthu zochokera ku cellulose zomwe zimakhala ndi makhalidwe a anionic komanso ntchito zofanana m'mafakitale ena, zimakhala ndi kusiyana kwakukulu pankhani ya kapangidwe ka mankhwala, makhalidwe, ndi ntchito zinazake. PAC imagwiritsidwa ntchito makamaka mumakampani amafuta ndi gasi, pomwe CMC imagwiritsa ntchito kwambiri mu chakudya, mankhwala, chisamaliro chaumwini, nsalu, ndi mafakitale ena.