IHydroxypropyl methyl cellulose (HPMC) iwuhlobo lwe-cellulose exubile ether okukhishwa kwayo, umthamo kanye nekhwalithi kukhule ngokushesha eminyakeni yamuva.I-non-ionic cellulose exubile i-ether eyenziwe ezinye izinqubo.
I-HPMC inezinto ezinhle zokuhlakaza, emulsifying, ezijiyayo, ezihlangene, ezigcina amanzi kanye nezigcina izinsini.Iyancibilika emanzini, futhi ingancibilika ku-ethanol ne-acetone ngaphansi kuka-70%.I-HPMC enesakhiwo esikhethekile ingase futhi incibilike ngokuqondile ku-ethanol.I-HPMC ingasetshenziswa kabanzi njenge-coating yefilimu, i-ejenti yokukhululwa okuqhubekayo kanye ne-binder ukulungiselela amalungiselelo emithi, futhi ingasetshenziswa kabanzi kumakhemikhali e-petrochemicals, izinto zokwakha, izitsha zobumba, izindwangu, ukudla, amakhemikhali ansuku zonke ngokusebenzisa ukuqina kwayo, ukuhlakazeka, ukuhlanganisa kanye nokwenza ifilimu. izakhiwo., inhlaka yokwenziwa, imithi, upende nezinto zikagesi neminye imikhakha.
Inqubo yokukhiqiza ye-HPMC ingahlukaniswa izigaba ezimbili: indlela yesigaba segesi kanye nendlela yesigaba se-liquid.Njengamanje, amazwe athuthukile njenge-Europe, i-United States ne-Japan asebenzisa inqubo ye-gas-phase eyengeziwe, esebenzisa i-wood pulp njengento eluhlaza (i-cotton pulp isetshenziselwa ukukhiqiza imikhiqizo ephezulu-viscosity), i-alkalization kanye ne-etherification yenziwa ngendlela efanayo. imishini, futhi ukusabela okuyinhloko ukusabela okuvundlile.Igedlela linomugqa onyakazayo ovundlile omaphakathi kanye nommese ophendukisayo ojikelezayo oklanyelwe ngokukhethekile ukukhiqizwa kwe-cellulose ether, engathola umphumela omuhle wokuhlanganisa.
Abahlaziyi bezimboni bakwaXinsijie bathe ngokukhula okuqhubekayo komnotho kanye nokuthuthuka okuqhubekayo kwezinga lempilo yabantu, isidingo se-hydroxypropyl methylcellulose emakethe yaseChina siqhubekile nokukhula.Isikhathi eside, isidingo semakethe yezwe lami i-hydroxypropyl methylcellulose sigxile kakhulu emikhakheni yezokwakha neyokumboza.Ngokuthuthuka okuqhubekayo kwezimboni ezansi nomfula, isidingo se-hydroxypropyl methylcellulose emasimini okudla nemithi sesiqale ukwanda ngokushesha.Ngokuzayo, izimboni zokwakha, zokudla kanye nemithi zizoba nomthelela obalulekile ekukhuleni kwemakethe yezwe lami i-hydroxypropyl methylcellulose.
Isikhathi sokuthumela: Nov-03-2022