Isalathisi se viscosity yeihydroxypropyl methylcellulosesisalathiso esibaluleke kakhulu.I-viscosity ayibonisi ubunyulu.I-viscosity ye-cellulose HPMC ixhomekeke kwinkqubo yokuvelisa.Iimeko ezahlukeneyo zokusetyenziswa kufuneka zikhethe i-cellulose HPMC ene-viscosities eyahlukeneyo, hayi i-viscosity ephezulu ye-cellulose HPMC, ngcono!Okulungileyo kulungile √
Ulawulo lweViscosity
1. I-high-viscosity i-hydroxypropyl methylcellulose ayikwazi ukuvelisa i-cellulose ephezulu kakhulu ngokucoca kunye nokubuyisela i-nitrogen.Ngokuqhelekileyo, ukuveliswa kwe-cellulose ephezulu ye-viscosity e-China ayikwazi ukulawulwa.Nangona kunjalo, ukuba isixhobo sokulinganisa i-oxygen singafakwa kwi-kettle, ukuveliswa kwe-viscosity kunokulawulwa ngokufanelekileyo.
Ukusetyenziswa kweearhente ezidibeneyo
2. Ukongezelela, ngokuqwalasela isantya sokutshintshwa kwe-nitrogen, kwaye kwangaxeshanye, kulula kakhulu ukuvelisa iimveliso ze-viscosity eziphezulu kungakhathaliseki ukuba le nkqubo ingenamoya.Ewe kunjalo, inqanaba lepolymerization yomqhaphu osulungekileyo likwabalulekile.Ukuba oko akusebenzi, yenze ngombutho we-hydrophobic.Kukho ii-arhente zobudlelwane basekhaya kulo mba.Uhlobo luni lwe-agent edibeneyo ekhethiweyo inempembelelo enkulu ekusebenzeni kwemveliso yokugqibela.
Umxholo weHydroxypropyl
3. I-oksijeni eseleyo kwi-reactor ikhokelela ekuthotyweni kwe-cellulose kunye nokunciphisa ubunzima be-molecular, kodwa i-oksijeni eseleyo ilinganiselwe.Akunzima ukwenza i-viscosity ephezulu ngokude nje ukuba iamolekyu eziphukileyo zixhunywe kwakhona.Nangona kunjalo, izinga lokugcwala kwamanzi linxulumene ngokusondeleyo nomxholo we-hydroxypropyl.Ezinye iifektri zifuna kuphela ukunciphisa iindleko kunye nexabiso, kwaye azifuni ukwandisa umxholo we-hydroxypropyl, ngoko umgangatho awukwazi ukufikelela kwinqanaba leemveliso ezifanayo zangaphandle.
ezinye izinto
4. Izinga lokugcinwa kwamanzi kwimveliso linobudlelwane obukhulu kunye ne-hydroxypropyl, kodwa kuyo yonke inkqubo yokuphendula, iphinda inqume izinga lokugcinwa kwamanzi, umphumo we-alkalization, umlinganiselo we-methyl chloride kunye ne-propylene oxide, kunye nokuxinwa kwe-alkali. .Kwaye umlinganiselo wamanzi kwikotoni ecocekileyo unquma ukusebenza kwemveliso.
Ixesha lokuposa: Oct-19-2022