1 Loluphi usetyenziso olungundoqo lwe-cellulose ether HPMC?
I-HPMC isetyenziswa ngokubanzi kudaka lolwakhiwo, ipeyinti esekwe emanzini, i-resin yokwenziwa, iiseramikhi, amayeza, ukutya, impahla, izinto zokuthambisa, icuba, kunye namanye amashishini.Yahlulwe kwibakala lokwakha, ibakala lokutya, ibakala lamayeza, ibakala loshishino lwePVC kunye nebakala lemichiza lemihla ngemihla.
2 Luluphi udidi lweselulosi?
Iiselulosi eziqhelekileyo zi-MC, HPMC, MHEC, CMC, HEC, EC
Phakathi kwabo, i-HEC kunye ne-CMC zisetyenziswa kakhulu kwiingubo ezisekelwe emanzini;
I-CMC ingasetyenziswa kwiiseramikhi, amasimi e-oyile, ukutya kunye namanye amasimi;
I-EC isetyenziswa kakhulu kumayeza, intlama yesilivere ye-elektroniki kunye nezinye iindawo;
I-HPMC yahlulwe ngokweenkcukacha ezahlukeneyo kwaye isetyenziselwa udaka, amayeza, ukutya, ishishini lePVC, iimveliso zemichiza yemihla ngemihla kunye namanye amashishini.
3Uthini umahluko phakathi kwe-HPMC kunye ne-MHEC kwisicelo?
Iimpawu zeentlobo ezimbini zeselulosi zifana ngokusisiseko, kodwa ukuzinza kweqondo lokushisa eliphezulu kwe-MHEC kubhetele, ngakumbi ehlotyeni xa ubushushu bodonga buphezulu, kwaye ukusebenza kokugcinwa kwamanzi kwe-MHEC kungcono kune-HPMC phantsi kweemeko eziphezulu zokushisa. .
4 Ungawugweba njani ngokulula umgangatho we-HPMC?
I-1) Nangona ubumhlophe bungenako ukugqiba ukuba i-HPMC ilula ukuyisebenzisa, kwaye ukuba ii-agent ezimhlophe zongezwa kwinkqubo yokuvelisa, umgangatho uya kuchaphazeleka, kodwa ininzi yeemveliso ezilungileyo zinobumhlophe obuhle, obunokuthi bugwetywe ngokukhawuleza kwimbonakalo.
2) Ukuhanjiswa kokukhanya: Emva kokunyibilikisa i-HPMC emanzini ukwenza i-colloid ebonakalayo, jonga ukukhanya kwayo.Okukhona ukuhanjiswa kokukhanya, kokukhona kukho into enganyibilikiyo encinci, kwaye nomgangatho ulungile.
Ukuba ufuna ukugweba ngokuchanekileyo umgangatho we-cellulose, eyona ndlela ithembekileyo kukusebenzisa izixhobo zobuchwephesha kwibhubhoratri yobugcisa yokuvavanya.Iimpawu eziphambili zokuvavanya ziquka i-viscosity, izinga lokugcinwa kwamanzi, kunye nomxholo womlotha.
5 Indlela yokufumanisa i-Viscosity ye-cellulose?
I-viscometer eqhelekileyo kwimarike yasekhaya ye-cellulose yi-NDJ, kodwa kwiimarike zamazwe ngamazwe, abavelisi abahlukeneyo bahlala besebenzisa iindlela ezahlukeneyo zokuvavanya i-viscosity.Ezona ziqhelekileyo Brookfeild RV, Hoppler, kwaye kukho kwakhona izisombululo ezahlukeneyo zokubona, ezahlulwe zibe 1% isisombululo kunye 2% isisombululo.Ii-viscometers ezahlukeneyo kunye neendlela ezahlukeneyo zokubona zihlala zikhokelela kumahluko wamaxesha amaninzi okanye amaxesha amaninzi kwiziphumo ze-viscosity.
6Uthini umahluko phakathi kohlobo olukhawulezileyo lwe-HPMC kunye nodidi olunyibilikayo olushushu?
Iimveliso ezikhawulezileyo ze-HPMC zibhekisa kwiimveliso ezithi zisasazeke ngokukhawuleza emanzini abandayo, kodwa kufuneka kuqatshelwe ukuba ukusasazwa akuthethi ukupheliswa.Iimveliso ezikhawulezayo ziphathwa nge-glyoxal phezu komhlaba kwaye zihlakazwe emanzini abandayo, kodwa aziqali ukuchithwa ngokukhawuleza., ngoko i-viscosity ayiveliswanga ngokukhawuleza emva kokusasazeka.Ubuninzi bonyango lwe-glyoxal, ukusabalalisa ngokukhawuleza, kodwa ukucotha kwe-viscosity, encinci ye-glyoxal, kunye ne-vice versa.
I-7 i-cellulose edibeneyo kunye ne-cellulose eguqulwayo
Ngoku kukho i-cellulose eninzi eguquliweyo kunye ne-cellulose edibeneyo kwimarike, ke yintoni ukuguqulwa kunye ne-compound?
Olu hlobo lwe-cellulose luhlala luneepropati ezingenayo i-cellulose yokuqala okanye iphucula ezinye zeempawu zayo, ezifana ne-anti-slip, ixesha elivulekileyo eliphuculweyo, ukunyuka kwendawo yokukrazula ukuphucula ukwakhiwa, njl. Nangona kunjalo, kufuneka kuqatshelwe ukuba iinkampani ezininzi. sebenzisa kwakhona I-cellulose etshiphu engcolisayo ukuze icuthe iindleko ibizwa ngokuba yi-compound cellulose okanye i-cellulose eguquliweyo.Njengomthengi, zama ukwahlula kwaye ungakhohliswa.Kungcono ukhethe iimveliso ezithembekileyo kwiimveliso ezinkulu kunye neefektri ezinkulu.
Ixesha lokuposa: Dec-23-2022