Momwe mungasankhire hydroxypropyl methylcellulose yabwino mkati ndi kunja kwa khoma putty

Momwe mungasankhire HPMC yoyenera

1. Malingana ndi chitsanzo: Malingana ndi mitundu yosiyanasiyana ya ma putty osiyanasiyana, zitsanzo za viscosity za hydroxypropyl methylcellulose ndi methylcellulose ndizosiyana. Amagwiritsidwa ntchito kuyambira 40,000 mpaka 100,000. Panthawi imodzimodziyo, fiber Vegetarian ether sangathe m'malo mwa zomangira zina, kuwonjezera pa cellulose ether sikutanthauza kuti zosakaniza za zomangira zina zingathe kuchepetsedwa.

2. Kodi mukufuna madzi ozizira dispersible cellulose ether: Cellulose ether (kuphatikizapo hydroxypropyl methylcellulose ndi methylcellulose) ndi surfactant ndi mkulu mamasukidwe akayendedwe pambuyo kusungunuka. Ndicho chifukwa cha chikhalidwe ichi kuti ngati wamba wa cellulose ether akuwonjezeredwa kumadzi, zimakhala zosavuta kupanga mpira, ndipo kunja kwa mpirawo kwasungunuka kukhala yankho lakuda kwambiri, ndipo mkati mwakutidwa, ndipo ndizovuta. kuti madzi alowe mkati, zomwe zimapangitsa kuti asasungunuka bwino. . Ether yopangidwa ndi cellulose (yomwe ingachedwetse kusungunuka) sidzakhala chonchi, ndipo imatha kumwazikana m'madzi ozizira (kuchedwa kusungunuka, ndikusungunuka pang'onopang'ono pambuyo pa kubalalika). Ndi chisankho chabwino kumvetsetsa kusiyana kumeneku.

1. Kwa mkati ndi kunja kwa khoma putty wowuma, chifukwa cellulose ether yakhala imwazikana bwino muzinthu panthawi ya kusakaniza kowuma, sipadzakhala agglomeration. Choncho, tikulimbikitsidwa kugwiritsa ntchito mtundu wamba (mtundu wa kubalalitsidwa kwa madzi osazizira), chifukwa kusungunuka kwa mtundu wamba kumathamanga kwambiri kuposa mtundu wamtundu wa madzi ozizira, womwe umachepetsa nthawi yodikira kuchokera kusakaniza slurry mpaka kumanga.

2. Pokonzekera putty yomwe imasungunula mwachindunji cellulose ether (kuphatikizapo hydroxypropyl methylcellulose ndi methylcellulose) m'madzi ndikusakaniza ndi zipangizo zina, tikulimbikitsidwa kugwiritsa ntchito madzi ozizira amtundu wa cellulose ether. Ether yopangidwa ndi cellulose imatha kumwazikana bwino m'madzi ozizira ndikusungunuka (imatha kuchedwetsa kusungunuka)