Ngaba i-polyanionic cellulose i-polymer?

I-Polyanionic cellulose (PAC) ngokwenene i-polymer, ibaluleke kakhulu kumashishini ahlukeneyo, ngakumbi ekugrumbeni kunye nokuhlola ioli.Ukuqonda ukubaluleka kunye neepropathi ze-polyanionic cellulose, makhe siqalise uphononongo malunga nokwakheka kwayo, ukusetyenziswa, kunye nefuthe kumacandelo awohlukeneyo.

Embindini wayo, i-polyanionic cellulose iphuma kwi-cellulose, i-polymer eyenzeka ngokwemvelo efumaneka kwiindonga zeeseli zesityalo.I-Cellulose ngokwayo yi-polysaccharide eyenziwe ngeeyunithi ze-glucose ezidityaniswe kunye nge-β(1→4) ye-glycosidic bond.Olu lungiselelo lunika i-cellulose amandla ayo ophawu kunye nokungaguquguquki, nto leyo eyenza ibe yinxalenye yesakhiwo esibalulekileyo kwizityalo.Nangona kunjalo, iipropathi zendalo zeselulosi zinokulungiswa kwaye ziphuculwe ukuze zilungele usetyenziso olwahlukeneyo lwemizi-mveliso, olukhokelela kuphuhliso lwezinto eziphuma kwi-polyanionic cellulose.

I-Polyanionic cellulose idityaniswe ngokuguqulwa kweekhemikhali zeselulosi, apho amaqela e-hydroxyl (-OH) akhoyo kwi-molecule ye-cellulose athatyathwa ngamaqela e-carboxymethyl (-CH2COOH).Olu hlengahlengiso lunika umlinganiswa we-anionic kwi-cellulose backbone, ebangela i-polymer eneempawu ze-polyanionic.Iqondo lokutshintshwa (DS) limisela ubungakanani bokutshintshwa kwe-carboxymethyl kwi-cellulose backbone, echaphazela iipropati kunye nokusetyenziswa kwe-polymer.

Esinye sezona zicelo zibalulekileyo ze-polyanionic cellulose kushishino lweoyile negesi, ngakumbi kulwelo lokomba.Ulwelo lokugrumba, oludla ngokubizwa ngokuba ludaka, lusebenza ngeenjongo ezahlukeneyo ngexesha lomsebenzi wokomba, kubandakanya ukuthambisa, ukupholisa, kunye nokususwa kobutyobo.I-Polyanionic cellulose yongezwa kwi-drilling fluid njenge-viscosifier kunye ne-agent yokulawula ukulahleka kwamanzi.

Njenge-viscosifier, i-polyanionic cellulose inika iipropathi zerheological kulwelo lokomba, iphucula amandla abo okunqumamisa ukusika i-drill kunye nokugcina uzinzo kwiqula.Ubunzima bemolekyuli ephezulu yepolymer kunye nendalo ye-anionic ivumela ukuba yenze ulwakhiwo lwenethiwekhi ngaphakathi kulwelo, ukwandisa i-viscosity kunye nokuthintela ukugoba okanye ukuhlaliswa kwezinto eziqinileyo.Ngaphezu koko, i-polyanionic cellulose ibonisa ukunyamezela ityuwa okugqwesileyo, iyenza ilungele ukusetyenziswa kwiindawo zokomba ezinetyuwa eninzi eqhelekileyo kwimisebenzi yokugrumba elunxwemeni.

Ukongeza kwindima yayo njenge-viscosifier, i-polyanionic cellulose isebenza njenge-arhente yokulawula ukulahleka kwamanzi kumanzi okomba.Ngokwenza ikhekhe lokucoca elicekethekileyo, elingangenekiyo eludongeni lomthombo, ipolymer inceda ukunciphisa ilahleko yolwelo ekubunjweni kwayo, ngaloo ndlela igcina ulawulo olululo loxinzelelo kunye nokuthintela umonakalo wokwakheka.Le propati ibalulekile ekuphuculeni ukusebenza kakuhle kokomba kunye nokunciphisa iingozi zokusebenza.

Ngaphandle kwecandelo leoli kunye negesi, i-polyanionic cellulose ifumana ukusetyenziswa kwamanye amashishini ahlukeneyo, kubandakanya amayeza, ukutya kunye nezithambiso.Kuqulunqo lwamayeza, lusebenza njenge-binder, disintegrant, okanye i-viscosity modifier kwimveliso yethebhulethi kunye nokumiswa komlomo.Kwishishini lokutya, i-polyanionic cellulose isetyenziswa njenge-ejenti etyebisayo, i-stabilizer, okanye i-emulsifier kwiimveliso ezisuka kwiisosi kunye nezinxibo ukuya kwiimveliso zobisi kunye neziselo.I-biocompatibility yayo kunye nendalo engeyiyo ityhefu iyenza ilungele ukusetyenziswa kwiimveliso zokhathalelo lomntu ezifana neloshini, iikhrimu, kunye neshampu, apho isebenza njenge-thickener okanye i-arhente yokumisa.

I-Polyanionic cellulose ime njengepolymer eguquguqukayo esetyenziswa ngokubanzi kumashishini amaninzi.Iimpawu zayo ezikhethekileyo, ezithathwe kukuguqulwa kwe-cellulose, zenza ukuba zibaluleke kakhulu kumacandelo afana neoli kunye negesi, amayeza, ukutya kunye nezithambiso.Njengoko uphando kunye nenkqubela phambili yetekhnoloji iqhubeka, ukusetyenziswa kwe-polyanionic cellulose kulindeleke ukuba kwandiswe ngakumbi, kube negalelo kubuchule obutsha kunye nokusebenza kakuhle kwiinkalo ezahlukeneyo.