Inkomba ye-Viscoxypropyllylylyly methylcellulose iyinkomba ebaluleke kakhulu. I-viscosity ayimeleli ubumsulwa. I-viscose HPMC ye-Cellulase incike kwinqubo yokukhiqiza. Izindawo ezihlukile zokusebenzisa kufanele zikhethe i-cellulose HPMC ene-viscosities ehlukile, hhayi ngaphezulu kwe-viscose HPMC, okungcono! Yini ilungile ilungile!
1. Ukulawulwa kwe-Viscosity
I-Viscoxyprotional ephezulu i-hydroxypropyll methylcellose ayikwazi ukukhiqiza i-cellulose ephezulu kakhulu ngokubuyiselwa kwe-vacuuming kanye ne-nitrogen esikhundleni sokukhiqiza. Ngokuvamile, ukukhiqizwa kwesethulo esisheshayo eChina ngeke kulawulwe. Kodwa-ke, uma imitha ye-oxygen ye-trace ingafakwa ku-kettle, ukukhiqizwa kokubonakalayo kwayo kungalawulwa ngokwezifiso.
2. Ukusetshenziswa kwe-Association Agent
Ngaphezu kwalokho, uma ucubungula ijubane lokufakwa esikhundleni se-nitrogen, kulula ukukhiqiza imikhiqizo evuselelayo noma ngabe uhlelo luyini i-Airtight. Vele, izinga le-polymerization kakotini elicwengiwe futhi libalulekile. Uma lokho kungasebenzi, khona-ke kwenze nge-hydrophobic association. Kukhona ama-Association Agents kule ndawo eChina. Hlobo luni lwenhlangano yokuzihlanganisa okufanele ukhethe inethonya elikhulu ekusebenzeni komkhiqizo wokugcina.
3. Okuqukethwe kwe-hydroxypropyl
I-oxygen eyinsalela ku-accouctor ibangela ukonakala kwe-cellulose kanye nokwehla kwesisindo se-molecular, kepha umoya-mpilo osele ulinganiselwe, inqobo nje uma ama-molecule aphukile axhunyiwe, akunzima ukwenza i-viscosity ephezulu. Kodwa-ke, izinga lokuphepha linokuningi okufanele kwenziwe ngokuqukethwe kwe-hydroxypropyl. Amanye amafektri afuna kuphela ukunciphisa izindleko nentengo, kepha akazimisele ukwandisa okuqukethwe kwe-hydroxypropyl, ngakho-ke ikhwalithi ayikwazi ukufinyelela ezingeni ngemikhiqizo efanayo yakwamanye amazwe.
4. Ezinye izinto
Izinga lokugcinwa kwamanzi lomkhiqizo linobudlelwano obuhle ne-hydroxyproppyl, kepha inqubo yonke yokusabela, umphumela we-methyl chloride kanye ne-alkalization accylent oxide, ukugcinwa kwamanzi kanye nokugcinwa kwamanzi. Isilinganiso sokucwilisa ukotini sinquma ukusebenza komkhiqizo.
Isikhathi Sokuthumela: APR-04-2023