Qaab-dhismeedka sodium carboxymethyl cellulose

Methyl celluloseGuud ahaan waa soo gaabinta sodium carboxymethyl cellulose, kaas oo ka tirsan nooc ka mid ah isku-dhafka polyanionic oo leh milmi biyo oo wanaagsan. Kuwaas waxaa ka mid ah, methyl cellulose inta badan waxaa ka mid ah methyl cellulose m450, methyl cellulose oo wax laga beddelay, cuntada Grade methyl cellulose, hydroxymethyl cellulose, iwm., badanaa waxaa loo isticmaalaa warshado kala duwan, oo inta badan loo isticmaalo dhismaha, dhoobada, cuntada, baytariyada, sameynta waraaqaha, dahaarka, daawooyinka, macdan qodista, qodista saliidda iyo warshadaha kale. Waxaa xusid mudan in goobta sibidhka, methylcellulose ay leedahay saameyn dib u dhac ah oo muuqata oo ku timaadda isku-darka hoobiyaha, taas oo sidoo kale sabab u ah qaab-dhismeedka gaarka ah ee methylcellulose.

Sida cellulose-ka lagu beddelay silsilad dheer, sodium carboxymethylcellulose lafteedu waxay leedahay qiyaastii 27% ~ 32% kooxaha hydroxyl ee qaabka kooxaha methoxy, iyo heerka polymerization ee heerarka kala duwan eesoodhiyam carboxymethylcellulosesidoo kale waa ka duwan yahay. Miisaanka molecular-ka ee ku lug leh inta badan wuxuu u dhexeeyaa 10,000 ilaa 220,000 Da, heerka ugu weyn ee beddelka waa tirada celceliska kooxaha methoxy, kuwaas oo ah cutubyo anhydroglucose ah oo kala duwan oo ku xiran silsiladda.

Sodium carboxymethyl cellulose hadda si weyn ayaa loogu isticmaalaa diyaarinta maqaarka qaarkood, iyo sidoo kale qurxinta iyo methyl cellulose-ka heerka cuntada, kuwaas oo guud ahaan aan sun ahayn, aan dareen lahayn, oo aan xanaaqin. Methyl cellulose Su waa walax aan kaloori ahayn,