Iikhemikhali zephepha sodium carboxymethylcellulose CMC

I-sodium carboxymethylcellulose (i-CMC) yikhemikhali esebenza ngeendlela ezininzi kunye nezicelo ezixhaphakileyo kumashishini ahlukeneyo, ngakumbi kwishishini lokwenza iphepha. Le carbohydrate ephuma kwi-cellulose, eyipolima yendalo efumaneka kwiindonga zeeseli zesityalo. I-CMC yenziwa ngokusabela iselulosi kunye nesodium hydroxide kunye ne-chloroacetic acid okanye ityuwa yesodium. Ikhompawundi enesiphumo iyanyibilika emanzini kwaye ineempawu ezizodwa ezenza ixabiseke kwizicelo ezininzi.

1. Ukulungiswa kwePulp:
I-CMC isoloko isetyenziswa njengenxalenye ekupheleni okumanzi kwenkqubo yokwenza iphepha. Inceda ekusasazeni imicu kunye nezinye izongezo emanzini, iququzelela ukwakheka kwe-homogeneous pulp slurry.
Umthamo wayo ophezulu wokugcina amanzi unceda ekugcineni ukuhambelana kwe-pulp slurry, ukuqinisekisa ukufana ekubunjweni kwamaphepha.

2.Ugcino kunye noGutyulo:
Omnye wemingeni ephambili ekwenzeni iphepha kukwandisa ukugcinwa kweefayili kunye nezongezo ngelixa ukhupha ngokufanelekileyo amanzi kwi-pulp. I-CMC inceda ukujongana nalo mngeni ngokuphucula zombini ugcino kunye neempawu zokuhambisa amanzi.
Njengoncedo lokugcina, i-CMC ibophelela kwimicu kunye neentlawulo, ukuthintela ukulahlekelwa kwabo ngexesha lokuqulunqwa kwephepha lephepha.
I-CMC iphucula ukuthuthwa kwamanzi ngokwandisa izinga apho amanzi asuswa khona kwi-pulp, ekhokelela ekukhutshweni kwamanzi ngokukhawuleza kunye nesantya esiphezulu somatshini wephepha.

3.Ukwandiswa kwamandla:
I-CMC inegalelo kwiipropathi zokomelela zephepha, kubandakanya ukomelela, ukuxhathisa kweenyembezi, kunye nokugqabhuka kwamandla. Yenza inethiwekhi ngaphakathi kwe-matrix yephepha, ngokufanelekileyo ukuqinisa isakhiwo kunye nokuphucula iimpawu zayo zomatshini.
Ngokuphucula amandla ephepha, i-CMC ivumela ukuveliswa kwamanqaku ephepha amancinci ngaphandle kokuncama ukusebenza, ngaloo ndlela ivumela ukugcinwa kweendleko kunye nokusebenza kakuhle kwezibonelelo.

4.Ubungakanani boMphezulu:
Ukulinganisa umphezulu linyathelo elibalulekileyo ekwenzeni iphepha elibandakanya ukusebenzisa umaleko obhityileyo weearhente zokulinganisa kumphezulu wephepha ukuphucula ukuprintwa kwalo, ukuguda, kunye nokunganyangeki kwamanzi.
I-CMC iqeshwe njengearhente yokulinganisa umphezulu ngenxa yeempawu zayo zokwenza ifilim kunye nokukwazi ukomeleza ukomelela komphezulu kunye nokuguda. Yenza i-coating efanayo kumphezulu wephepha, okukhokelela ekuphuculweni kwe-inki yokubamba kunye nomgangatho wokushicilela.

5.UNcedo lokuGcina kwiiFili kunye neePigments:
Kwi-papermaking, iifayili kunye nee-pigments zihlala zongezwa ukuphucula iimpawu zephepha ezifana ne-opacity, ukukhanya, kunye nokuprintwa. Nangona kunjalo, ezi zongezo zinokuthi zilungele ukulahleka kwamanzi ngexesha lenkqubo yokwenza iphepha.
I-CMC isebenza njengoncedo lokugcina izihluzi kunye nee-pigments, inceda ukuzibophelela ngaphakathi kwe-matrix yephepha kunye nokunciphisa ilahleko yazo ngexesha lokwenziwa kunye nokomisa.

6. Ukulawulwa kweePropati zeRheological:
I-Rheology ibhekiselele kwindlela yokuziphatha yolwelo, kubandakanywa ne-pulp slurries, ngaphakathi kwenkqubo yokwenza iphepha. Ukulawula iimpawu ze-rheological kubalulekile ekuphuculeni inkqubo yokusebenza kakuhle kunye nomgangatho wemveliso.
I-CMC inefuthe kwi-rheology ye-pulp slurries ngokuguqula i-viscosity yabo kunye neempawu zokuhamba. Ingasetyenziselwa ukulungelelanisa iimpawu ze-rheological ze-pulp ukuze zihambelane neemfuno ezithile zokucubungula, ezifana nokuphucula ukuqhutyelwa komatshini kunye nokwakheka kwephepha.

7.Iingqwalasela zokusiNgqongileyo:
I-sodium carboxymethylcellulose ngokuqhelekileyo ithathwa njengento ehambelana nokusingqongileyo, njengoko ivela kwimithombo ye-cellulose ehlaziyekayo kwaye i-biodegradable.
Ukusetyenziswa kwayo ekwenzeni iphepha kunokufaka isandla kuphuhliso lweemveliso zephepha ezizinzileyo ngokuvumela iinkqubo zokwenziwa kwezixhobo ezifanelekileyo kunye nokuphucula ukusebenza kwemveliso.

I-sodium carboxymethylcellulose (i-CMC) idlala indima eninzi kwishishini le-papermaking, isebenza njenge-additive versatile ephucula iinkalo ezahlukeneyo zenkqubo yokuvelisa iphepha. Ukusuka kulungiselelo lwepulp ukuya kubungakanani bomphezulu, iCMC inegalelo kuphuculo lwenkqubo esebenzayo, umgangatho wemveliso, kunye nokuzinza kokusingqongileyo. Indibaniselwano yayo eyodwa yeepropathi iyenza ibaluleke kakhulu kubenzi bamaphepha abafuna ukwandisa ukusebenza kunye nokuhlangabezana neemfuno eziguqukayo zentengiso.