Inkomba ye-viscosity yei-hydroxypropyl methylcelluloseiyinkomba ebaluleke kakhulu.I-viscosity akumeleli ubumsulwa.I-viscosity ye-cellulose HPMC incike kunqubo yokukhiqiza.Izindawo ezihlukene zokusebenzisa kufanele zikhethe i-cellulose HPMC ene-viscosity ehlukene, hhayi ukuphakama kwe-viscosity ye-cellulose HPMC, kungcono!Okulungile kulungile √
I-Viscosity Control
1. I-High-viscosity hydroxypropyl methylcellulose ayikwazi ukukhiqiza i-cellulose ephezulu kakhulu ngokuyicoca futhi ifake i-nitrogen.Ngokuvamile, ukukhiqizwa kwe-cellulose ephezulu-viscosity e-China akukwazi ukulawulwa.Kodwa-ke, uma ithuluzi lokulinganisa i-oxygen lingafakwa kuketela, ukukhiqizwa kwe-viscosity kungalawulwa ngokuzenzakalelayo.
Ukusetshenziswa kwama-associative agents
2. Ngaphezu kwalokho, kucatshangelwa isivinini sokushintsha i-nitrogen, futhi ngesikhathi esifanayo, kulula kakhulu ukukhiqiza imikhiqizo ephezulu ye-viscosity kungakhathaliseki ukuthi uhlelo lungenamoya kangakanani.Yiqiniso, izinga le-polymerization likakotini ocolisisiwe nalo libalulekile.Uma lokho kungasebenzi, kwenze nge-hydrophobic association.Kukhona ama-associate agents asekhaya mayelana nalokhu.Uhlobo luni lwe-agent ehlangene olukhethiwe lunomthelela omkhulu ekusebenzeni komkhiqizo wokugcina.
Okuqukethwe kwe-Hydroxypropyl
3. I-oksijeni esele ku-reactor iholela ekulimazeni kwe-cellulose nokunciphisa isisindo samangqamuzana, kodwa i-oxygen esele ilinganiselwe.Akunzima ukwenza i-viscosity ephezulu inqobo nje uma ama-molecule aphukile exhunywa kabusha.Nokho, izinga lokugcwala kwamanzi nalo lihlobene eduze nokuqukethwe kwe-hydroxypropyl.Ezinye izimboni zifuna kuphela ukunciphisa izindleko kanye nentengo, futhi azizimisele ukwandisa okuqukethwe kwe-hydroxypropyl, ngakho ikhwalithi ayikwazi ukufinyelela izinga lemikhiqizo efanayo yangaphandle.
ezinye izici
4. Izinga lokugcinwa kwamanzi lomkhiqizo linobudlelwane obuhle ne-hydroxypropyl, kodwa kuyo yonke inqubo yokusabela, liphinde linqume izinga lokugcinwa kwamanzi, umphumela we-alkalization, isilinganiso se-methyl chloride ne-propylene oxide, kanye nokugxila kwe-alkali. .Futhi isilinganiso samanzi ukotini ocwengekile sinquma ukusebenza komkhiqizo.
Isikhathi sokuthumela: Oct-19-2022