1. Sepheo sa mantlha sa HPMC ke sefe?
Sehlahisoa sena se sebelisoa e le motenya, dispersant, binder, excipient, coating e hananang le oli, filler, emulsifier le stabilizer indastering ea masela. E boetse e sebelisoa haholo indastering ea li-synthetic resin, petrochemical, ceramic, pampiri, letlalo, meriana, lijo le litlolo.
2. Mosebetsi oaHPMCka hare leboteng putty phofo?
HPMC e na le mesebetsi e meraro: putty phofo bakeng sa lebota le ka hare, ho teteaneng, ho koala metsi le ho haha. Ho tsepamisa maikutlo: Methyl cellulose e ka kenngoa ka tharollo e phaphametseng kapa ea metsi ho boloka mesebetsi e ts'oanang le e tsitsitseng le ho thibela ho phalla le ho fanyeha. Metsi a notlellang: Lerako le ka hare le omella butle, 'me khalsiamo ea lime e ekelitsoeng e bonahala ts'ebelisong ea metsi. Kaho ea boenjiniere: Methyl cellulose e na le mosebetsi oa ho kolobisa, o ka etsang hore lerako le ka hare la putty le be le mohaho o motle oa boenjiniere. HPMC ha e kenye letsoho phetohong ea lik'hemik'hale tsohle, empa e nka karolo feela ho tlatsetsong. Lerako le ka hare la putty phofo, leboteng, ke phetoho ea lik'hemik'hale, hobane ho na le phetoho e ncha ea lik'hemik'hale, lerako le ka hare la putty phofo le tlosoa leboteng, le siloa, 'me le sebelisoa hape , Hobane ntho e ncha ea lik'hemik'hale (calcium bicarbonate) e hlahisitsoe. Likarolo tse ka sehloohong tsa phofo ea grey calcium ke: motsoako oa Ca(OH)2, CaO le palo e nyenyane ea CaCO3, CaO+H2O=Ca(OH)2 -Ca(OH)2+CO2=CaCO3↓+H2O grey calcium metsing le moeeng Tlas'a ts'ebetso ea CO2, calcium carbonate e thehoa, ha HPMC e boloka karabelo leha e le efe ea khalsiamo, e boloka metsi le ho thusa ka boeona.
3. Mokhoa oa ho ahlola boleng baHPMCka tsela e bonolo le e utloahalang?
(1) Bosoeu: Le hoja bosoeu bo ke ke ba etsa qeto ea hore na HPMC e bonolo ho e sebelisa, 'me haeba ho eketsoa ho khanyang ka mokhoa oa tlhahiso, ho tla ama boleng ba eona. Leha ho le joalo, lihlahisoa tse ntle li na le bosoeu bo botle. (2) Bokhabane: Bokhabane ba HPMC hangata ke 80 mesh le 100 mesh, 120 mesh e nyane, 'me boholo ba HPMC e hlahisoang Hebei ke 80 mesh. Ha botle bo botle, bo betere ka kakaretso. (3) Phetiso: Kenya hydroxypropyl methylcellulose (HPMC) ka metsing ho etsa colloid e bonaletsang, 'me u shebe phetiso ea eona. Ha phetisetso e kholoanyane, e betere, e bonts'a hore ho na le li-insoluble tse nyane ka hare. . Ho kenella ha reactor e emeng ka kakaretso ho lokile, 'me reactor e tšekaletseng e mpe, empa ha ho bolele hore boleng ba reactor e emeng e betere ho feta ea reactor e tšekaletseng. Boleng ba sehlahisoa bo ntse bo khethoa ke lintlha tse ngata. (4) Tekanyo: Ha karolo e kholoanyane, boima bo boholo le ho feta. Bokhabane bo phahameng ka kakaretso bo bakoa ke litaba tse phahameng tsa hydroxypropyl tse ho eona, 'me ha hydroxypropyl e phahame, ho boloka metsi ho molemo.
4. Ke eng e lokelang ho lefshoa ha ho sebelisoa viscosity le mocheso oa HPMC?
The viscosity ea HPMC e inversely tekano le mocheso, ke hore, viscosity eketseha ha mocheso fokotseha. Hangata re re viscosity ea sehlahisoa e bua ka sephetho sa tlhahlobo ea tharollo ea metsi a 2% mocheso oa likhato tse 20 tsa Celsius. Lits'ebetsong tse sebetsang, libakeng tse nang le phapang e kholo ea mocheso pakeng tsa lehlabula le mariha, ho lokela ho hlokomeloa hore ho kgothaletswa ho sebelisa viscosity e batlang e le tlaase nakong ea mariha, e leng se loketseng ho haha. Ho seng joalo, ha mocheso o le tlaase, viscosity ea cellulose e tla eketseha, 'me letsoho le tla ikutloa le le boima ha le hlakoloa.
5. Mekhoa ea ho qhala ea HPMC ke efe?
Mokhoa oa ho qhibiliha ha metsi a chesang: Kaha HPMC ha e qhibilihe metsing a chesang, HPMC e ka qhalakanngoa ka mokhoa o ts'oanang metsing a chesang qalong, ebe e qhibiliha ka potlako ha e pholile. Mekhoa e 'meli e tloaelehileng e hlalosoa ka tsela e latelang: 1). Metsi a chesang le a futhumetseng ho fihlela ho 70 ° C. Butle-butle eketsa hydroxypropyl methylcellulose ka ho sisinyeha butle, qala HPMC e phaphametse holim'a metsi, ebe butle-butle u theha seretse, 'me u pholise seretse ka ho sisinyeha. 2). Kenya 1/3 kapa 2/3 ea palo e hlokahalang ea metsi ka har'a sets'oants'o ebe o se futhumatsa ho 70 ° C. Ho ea ka mokhoa oa 1), qhala HPMC ho lokisetsa slurry ea metsi a chesang; ebe o eketsa palo e setseng ea metsi a batang ho metsi a chesang Ka slurry, pholile motsoako ka mor'a ho susumetsa. Mokhoa oa ho kopanya phofo: kopanya phofo ea HPMC le lisebelisoa tse ling tse ngata tsa phofo, kopanya ka botlalo le blender, ebe u eketsa metsi ho qhibiliha, ebe HPMC e ka qhibiliha ka nako ena ntle le ho kopanya le ho kopanya, hobane sekhutlo se seng le se seng se senyenyane, ho na le hanyenyane feela ea HPMC Phofo e tla qhibiliha hang-hang ha e kopana le metsi. -Putty phofo le baetsi ba seretse ba sebelisa mokhoa ona. [Hydroxypropyl methyl cellulose (HPMC) e sebelisoa e le sekontiri se teteaneng le se bolokang metsi seretseng sa putty powder. ]
6. Tekanyetso ea HPMC e kenyelitsoe ka putty powder ke efe?
Chelete eaHPMCe sebelisoang lits'ebetsong tsa 'nete e fapana ho latela boemo ba leholimo, mocheso, boleng ba molora oa sebaka sa calcium, foromo ea putty powder, le "boleng bo hlokoang ke bareki". Ka kakaretso, e pakeng tsa 4 kg le 5 kg. Ka mohlala, phofo ea putty ka mokhabiso'> Beijing boholo ba lik'hilograma tse 5; phofo ea putty Guizhou hangata ke 5 kg lehlabula le 4.5 kg mariha; Palo ea tlatsetso ea Yunnan e batla e le nyane, ka kakaretso ke 3 kg-4 kg joalo-joalo.
Nako ea poso: Apr-26-2024