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 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