I-Hydroxyethyl cellulose yi-polymer enyibilikayo emanzini engeyiyo i-ionic eyenziwe nge-cellulose, into yendalo ye-polymer, ngokusebenzisa uthotho lweenkqubo zeekhemikhali. Yinto eqinileyo emhlophe okanye emthubi, engenavumba kwaye engenancasa, enokunyibilika emanzini abandayo nasemanzini ashushu, kwaye izinga lokunyibilika liyakhula ngokunyuka kobushushu. Ngokubanzi, ayinyibiliki kwiintlambululi ezininzi ze-organic. Isetyenziswa njengesithambisi kunye nesiqinisi kwipeyinti ye-latex. Kulula ukuyisasaza emanzini abandayo enexabiso le-pH elingaphantsi okanye elilingana ne-7, kodwa kulula ukuyihlanganisa kwi-alkaline liquid, ngoko ke ilungiselelwe kwangaphambili ukuze isetyenziswe kamva, okanye amanzi abuthathaka e-acid okanye isisombululo se-organic senziwe sibe yi-slurry, kwaye ingaxutywa nezinye iigranular. Izithako zomile zixutywe kunye.
Iimpawu ze-hydroxyethyl cellulose:
I-HEC iyanyibilika emanzini ashushu okanye abandayo, kwaye ayitshisi xa ishushu kakhulu okanye ibila, nto leyo eyenza ukuba ibe neempawu ezahlukeneyo zokunyibilika kunye ne-viscosity, kunye ne-gelation engashushu.
Ingasebenza kunye nezinye iipolymers ezinyibilikayo emanzini, ii-surfactants, kunye neetyuwa, kwaye sisixhobo esihle kakhulu sokuqinisa i-colloidal kwizisombululo ezinee-electrolytes ezinoxinzelelo oluphezulu.
Umthamo wokugcina amanzi uphindwe kabini kunowe-methyl cellulose, kwaye unolawulo olungcono lokuhamba kwamanzi.
Xa kuthelekiswa ne-methyl cellulose eyaziwayo kunye ne-hydroxypropyl methyl cellulose, amandla okusasaza e-HEC ngawona ambi kakhulu, kodwa amandla okukhusela e-colloid ngawona anamandla.
Yakhiwe kakuhle kakhulu; ineengenelo zokonga abasebenzi, ayilula ukuyikhupha, ayiboyiki, ayitshixi, njl.njl.
Ukuhambelana okuhle nee-surfactants ezahlukeneyo kunye nezithinteli ezisetyenziswa kwipeyinti yelatex.
I-viscosity yokugcina izinzile, nto leyo enokuthintela i-hydroxyethyl cellulose ngokubanzi ekunciphiseni i-viscosity yepeyinti ye-latex ngexesha lokugcina ngenxa yokubola kwee-enzymes.
Ixesha lokuthumela: Meyi-25-2023