Focus on Cellulose ethers

Mokhoa oa ho khetha hydroxypropyl methylcellulose e loketseng bakeng sa putty ea ka hare le kantle ea lebota

Mokhoa oa ho khetha HPMC e nepahetseng

1. Ho ea ka mohlala: Ho ea ka mekhoa e fapaneng ea li-putty tse sa tšoaneng, mefuta ea viscosity ea hydroxypropyl methylcellulose le methylcellulose le eona e fapane. Li sebelisoa ho tloha ho 40,000 ho isa ho 100,000. Ka nako e ts'oanang, fiber Vegetarian ether e ke ke ea nkela sebaka sa li-binders tse ling, ho eketsa cellulose ether ha ho bolele hore metsoako ea li-binders tse ling e ka fokotsoa.

2. Na u hloka metsi a batang a dispersible cellulose ether: Cellulose ether (ho akarelletsa le hydroxypropyl methylcellulose le methylcellulose) ke motsoako o nang le viscosity e phahameng ka mor'a ho qhibiliha. Ke lebaka la tlhaho ena hore haeba ether e tloaelehileng ea cellulose e kenngoa metsing, ho bonolo ho theha bolo, 'me bokantle ba bolo bo qhibilihile ka tharollo e teteaneng haholo,' me ka hare e phuthetsoe, 'me ho thata. hore metsi a kene ka hare, e leng se bakang ho senyeha ho hotle. . Selulose ether e entsoeng ka holim'a metsi (e ka liehisang ho qhibiliha) e ke ke ea e-ba tjena, 'me e ka qhalakanngoa hantle metsing a batang (ho lieha ho qhibiliha,' me butle-butle ea qhibiliha ka mor'a ho hasana). Ke khetho e ntle ho utloisisa phapang e ka holimo.

1. Bakeng sa putty e omeletseng ea ka hare le ka ntle ea lerako, hobane cellulose ether e qhalakantsoe hantle ka thepa nakong ea ts'ebetso ea ho kopanya ka mokhoa o omileng, ho ke ke ha e-ba le ho kopana. Ka hona, ho kgothaletswa ho sebelisa mofuta o tloaelehileng (mofuta oa ho hasana ha metsi a sa batang), hobane sekhahla sa ho qhibiliha sa mofuta o tloaelehileng se potlakile ho feta sa mofuta oa ho qhalakanngoa ha metsi a batang, e leng ho khutsufatsang nako ea ho leta ho tloha ho kopanya slurry ho haha.

2. Bakeng sa ho lokisetsa putty e qhibilihang ka ho toba cellulose ether (ho akarelletsa le hydroxypropyl methylcellulose le methylcellulose) ka metsing ebe e e kopanya le lisebelisoa tse ling, ho kgothaletswa ho sebelisa metsi a batang a qhalakantsoeng mofuta oa cellulose ether. Selulose ether e entsoeng ka holim'a metsi e ka qhalakanngoa hantle metsing a batang 'me ea qhibiliha (e ka lieha ho qhibiliha)


Nako ea poso: Apr-24-2023
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