Isalathiso se-viscosity yehydroxypropyl methylcelceluploseyindawo ebaluleke kakhulu. I-vickosity ayimele ubunyulu. I-viscosity ye-HELMMC ixhomekeke kwinkqubo yemveliso. Iindawo ezahlukeneyo zokusebenzisa kufuneka zikhetha i-HETMMC ye-HPMC ehamba-viscofis, hayi ngaphezulu kwe-viscosity ye-sell setmc, engcono! Yintoni elungileyo ilungile √
Ulawulo lwe-viscosity
I-1. I-viscosity ephezulu ye-hydroxypropyl methylcelcelcelose ayinakukwazi ukuvelisa i-selsulose ephezulu kakhulu ngokuphuculwa kwaye ithathe indawo ye-nitrogen. Ngokubanzi, ukuveliswa kwe-vill-villase ye-villase e-China ayinakulawulwa. Nangona kunjalo, ukuba isixhobo sokulinganisa ioksijini singafakwa kwiketile, ukuveliswa kwe-viscofity kunokulawulwa ngobugcisa.
Ukusetyenziswa kweearhente zonxibelelwano
Ukuqhubeka, ukuthathela ingqalelo isantya sokutshintsha kwe-nitrogen, kwaye kwangaxeshanye, kulula kakhulu ukuvelisa iimveliso ze-viscofity ephezulu nokuba injani na inkqubo yomoya. Ewe, inqanaba le-polymerization yekotoni ecocekileyo ibalulekile. Ukuba ayisebenzi, yenze ngoMbutho we-hydrophobic. Kukho iiarhente zovelwano lwasekhaya malunga noku. Olunjani lona iarhente yoluntu ikhethiwe inefuthe elikhulu ekusebenzeni kwemveliso yokugqibela.
Umxholo weHydroxypropy
3. Ioksijini entsalelayo kwi-Reactor ikhokelela ekuhlazweni kwe-seluplose kunye nokuncitshiswa kwesisindo semolekyuli, kodwa ioksijini yentsalela inomda. Akunzima ukwenza i-viscofity ephezulu kakhulu njengoko iimolekyuli ezaphukileyo ziyaqaqanjelwa. Nangona kunjalo, ireyithi yogcino lwamanzi ikwanxulumene ngokusondeleyo nomxholo we-hydroxypropy. Ezinye zeefektri zifuna ukunciphisa iindleko kunye nexabiso, kwaye azifuni ukwandisa umxholo we-hydroxypropy, ngoko ke umgangatho awukwazi ukufikelela kwinqanaba lemveliso yangaphandle.
Ezinye izinto
I-4. Iqondo lokugcina amanzi lemveliso linolwalamano olukhulu kunye ne-hydroxypropy, kodwa kuyo yonke inkqubo yokugcina amanzi, ikwamisela i-alkali yokufumana amanzi, i-propyl ye-prophelide, kunye noxinzelelo lwe-alkali . Kwaye umlinganiselo wamanzi ocociweyo wekotoni umisela ukusebenza kwemveliso.
Ixesha lePosi: I-Oct-19 ukuya ku-2002