Viscosity e tlase: 400 e sebelisoa haholo-holo bakeng sa seretse sa ho ikemela, empa hangata se rekoa kantle ho naha.
Lebaka: Viscosity e tlase, paballo e mpe ea metsi, empa thepa e ntle ea boemo bo holimo, seretse se phahameng sa seretse.
Viscosity e bohareng le e tlase: 20000-40000 e sebelisoa haholo bakeng sa sekhomaretsi sa lithaele, sekontiri sa caulking, seretse se thibelang mapheo, seretse se kopanyang mocheso, joalo-joalo.
Mabaka: Ho sebetsa hantle, ho fokotseha ha metsi, le seretse se phahameng.
1. Litšebeliso tsa mantlha tsa hydroxypropyl methylcellulose (HPMC) ke life?
——A: HPMC e sebelisoa haholo linthong tsa moaho, lijalo, lirekere tsa maiketsetso, lirafshoa, meriana, lijo, masela, temo, litlolo, koae le liindasteri tse ling. HPMC e ka aroloa ka: kereiti ea kaho, kereiti ea lijo le kereiti ea meriana ho latela ts'ebeliso. Hona joale, lihlahisoa tse ngata tsa malapeng ke tsa boemo ba kaho. Sebakeng sa kaho, phofo ea putty e sebelisoa ka bongata, hoo e ka bang 90% e sebelisetsoa putty powder, 'me e setseng e sebelisetsoa seretse sa samente le sekhomaretsi.
2. Ho na le mefuta e mekae ea hydroxypropyl methylcellulose (HPMC)? Tšebeliso ea tsona ke efe?
——A: HPMC e ka aroloa ka mofuta oa hang-hang le mofuta oa ho qhibiliha o chesang. Lihlahisoa tsa hang-hang li hasana ka potlako metsing a batang 'me li nyamela ka metsing. Mokelikeli ha o na viscosity ka nako ena hobane HPMC e qhalakantsoeng ka metsing feela 'me ha e hlile ha e qhibilihe. Kamora metsotso e ka bang 2, viscosity ea mokelikeli e ntse e eketseha butle-butle 'me ho thehoa viscous colloid e hlakileng. Lihlahisoa tse qhibilihang ka har'a metsi a chesang li ka qhalana ka potlako metsing a chesang 'me tsa nyamela metsing a chesang ha li kopana le metsi a batang. Ha mocheso o theohela mocheso o itseng (sehlahisoa sa k'hamphani ea rona ke likhato tse 65 tsa Celsius), viscosity e hlaha butle ho fihlela ho thehoa ha colloid e hlakileng ea viscous. Mofuta oa ho qhibiliha o chesang o ka sebelisoa feela bakeng sa phofo ea putty le seretse. Ka sekhomaretsi sa metsi le pente, ho tla ba le clumping mme e ke ke ea sebelisoa. Mofuta oa hang-hang o na le mefuta e mengata e fapaneng ea likopo. E ka sebelisoa bakeng sa phofo ea putty, seretse, sekhomaretsi sa metsi le pente ntle le li-contraindications.
3. Mekhoa ea ho qhibiliha ea hydroxypropyl methylcellulose (HPMC) ke efe?
—— Karabo: Mokhoa oa ho qhibiliha ha metsi a chesang: Kaha HPMC ha e qhibilihe metsing a chesang, HPMC e ka qhalakanngoa ka ho lekana metsing a chesang qalong ’me ea qhibiliha kapele ka mor’a ho pholile. Mekhoa e 'meli e tloaelehileng e hlalosoa ka tlase:
1) Kenya palo e hlokahalang ea metsi a chesang ka har'a sets'oants'o ebe u e futhumatsa ho isa ho 70 ℃. Butle-butle eketsa hydroxypropyl methylcellulose ka ho sisinyeha butle. Qalong HPMC e phaphamala holim'a metsi, ebe butle-butle e etsa seretse, 'me e pholile ka ho sisinyeha.
2). Kenya 1/3 kapa 2/3 ea palo e hlokahalang ea metsi ka har'a setshelo, e chese ho 70 ° C, qhala HPMC ho latela mokhoa oa 1), 'me u lokise slurry ea metsi a chesang; ebe o eketsa palo e setseng ea metsi a batang ho slurry ea metsi a chesang. slurry ka metsing, hlohlelletsa le ho pholile motsoako.
Mokhoa oa ho kopanya phofo: Kopanya phofo ea HPMC le bongata bo bongata ba lintho tse ling tse phofo, kopanya ka botlalo le blender, ebe u eketsa metsi ho qhibiliha. Ka nako ena, HPMC e ka qhaqhoa 'me e ke ke ea kopana, hobane ho na le karolo e nyenyane feela ea HPMC karolong ka' ngoe. Sekhutlo se senyane. Phofo e qhibiliha hang-hang ha e kopana le metsi. ——Bahlahisi ba phofo ea putty le seretse ba sebelisa mokhoa ona. Hydroxypropyl methylcellulose (HPMC) e sebelisoa e le sekontiri se teteaneng le se bolokang metsi ka har'a seretse sa putty powder.
4. Joang ho ahlola boleng ba hydroxypropyl methylcellulose (HPMC) habonolo le ka mokhoa o hlakileng?
—— Karabo: (1) Bosoeu: Le hoja bosoeu bo sa etse qeto ea hore na HPMC e bonolo ho e sebelisa, haeba likhantši li eketsoa nakong ea tlhahiso, e tla ama boleng ba eona. Leha ho le joalo, lihlahisoa tse ngata tse ntle li na le bosoeu bo botle. (2) Bokhabane: Bokhabane ba HPMC hangata ke 80 mesh le 100 mesh, le 120 mesh e fokolang. Boholo ba HPMC e hlahisoang Hebei ke 80 mesh. Ha e le hantle, e ntle le ho feta. (3) Ho fetisa leseli: Kenya hydroxypropyl methylcellulose (HPMC) ka metsing ho etsa colloid e bonaletsang, 'me u hlahlobe phetiso ea khanya ea eona. Ha phetisetso ea khanya e phahame, e molemo, e bontšang hore ho na le lintho tse fokolang tse sa tsitsang ka hare. Moea o kenang oa li-reactor tse otlolohileng hangata o betere ho feta oa li-reactor tse tšekaletseng, empa ho ke ke ha boleloa hore boleng ba li-reactor tse otlolohileng bo betere ho feta ba tse tšekaletseng. Ho na le lintlha tse ngata tse khethollang boleng ba sehlahisoa. (4) Matla a khoheli a khethehileng: Ha matla a khoheli a itseng a le khōloanyane ’me a le boima haholo, a molemo. Matla a khoheli a khethehileng ka kakaretso a bakoa ke litaba tse phahameng tsa hydroxypropyl ho eona. Ha maemo a hydroxypropyl a phahame, ho boloka metsi ho betere.
5. Ke tekanyo efe ea hydroxypropyl methylcellulose (HPMC) ka putty powder?
—— Karabo: Tekanyetso ea HPMC lits'ebetsong tsa 'nete e fapana ho ea ka boemo ba leholimo, mocheso, boleng ba molora oa calcium, le foromo ea ho kenya. ty powder le "boleng bo hlokahalang ke moreki". Ka kakaretso, e pakeng tsa 4kg le 5kg. Ka mohlala, phofo e ngata ea putty Beijing ke 5 kg; phofo e ngata ea putty Guizhou ke 5 kg lehlabula le 4,5 kg mariha;
6. Viscosity e nepahetseng ea hydroxypropyl methylcellulose (HPMC) ke efe?
—— Karabo: Putty powder ka kakaretso e bitsa li-yuan tse 100,000, ’me seretse se hloka ho feta, kahoo li-yuan tse 150,000 li lekane. 'Me mosebetsi oa bohlokoa ka ho fetisisa oa HPMC ke ho boloka metsi, ho lateloa ke ho teteaneng. Ka phofo ea putty, hafeela e e-na le ho boloka metsi hantle le viscosity e tlaase (70,000-80,000), ho lokile. Ha e le hantle, ha viscosity e phahame, ho molemo ho boloka metsi a lekanyelitsoeng. Ha viscosity e feta 100,000, viscosity ha e na phello e fokolang ho boloka metsi.
7. Ke matšoao afe a mantlha a tekheniki a hydroxypropyl methylcellulose (HPMC)?
——A: Likahare tsa Hydroxypropyl le viscosity, basebelisi ba bangata ba amehile ka matšoao ana a mabeli. Ha maemo a hydroxypropyl a phahame, ho boloka metsi ho betere. Ka viscosity e phahameng, ho boloka metsi ho batla (eseng ka ho feletseng) ho molemo, 'me ka viscosity e phahameng, ho molemo ho sebelisoa ka seretse sa samente.
8. Lisebelisoa tsa mantlha tsa hydroxypropyl methylcellulose (HPMC) ke life?
—— A: Lisebelisoa tse ka sehloohong tsa hydroxypropyl methylcellulose (HPMC): k’hothone e hloekisitsoeng, methyl chloride, propylene oxide, lisebelisoa tse ling tse tala li kenyelletsa caustic soda, acid, toluene, joala ea isopropyl, joalo-joalo.
9. Karolo e ka sehloohong ea HPMC ke efe ha ho sebelisoa putty powder? E na le litlamorao tsa lik'hemik'hale?
—— Karabo: HPMC e na le mesebetsi e meraro e meholo ea ho tiisa, ho boloka metsi le ho haha ka putty powder. Thickening: Cellulose e ka tiisa ho fanyeha, ho boloka seaparo sa tharollo le ho hanela ho theoha. Ho boloka metsi: Etsa hore phofo ea putty e ome butle 'me u thuse karabelo ea grey calcium tlasa ts'ebetso ea metsi. Kaho: Cellulose e na le phello ea ho tlotsa 'me e ka etsa hore phofo ea putty e be le ts'ebetso e ntle ea ho sebetsa. HPMC ha e kenye letsoho tšebetsong efe kapa efe ea lik'hemik'hale mme e bapala karolo ea tlatsetso feela. Ha putty powder e kenngoa metsing 'me e sebelisoa leboteng, ho tla etsahala lik'hemik'hale. Ha ntho e ncha e thehoa, phofo ea putty leboteng e tlosoa leboteng ebe e siloa ka phofo pele e sebelisoa. Sena ha se sebetse hobane ntho e ncha (calcium carbonate) e entsoe. ) holimo. Likarolo tse kholo tsa phofo ea calcium e bohlooho ke: motsoako oa Ca(OH)2, CaO le palo e nyenyane ea CaCO3, CaO+H2O=Ca(OH)2 -Ca(OH)2+CO2=CaCO3↓+H2O Gray calcium. e qhibiliha ka metsing le moeeng CO2 Tlas'a ketso ea calcium carbonate, HPMC e boloka metsi feela 'me e thusa k'halsiamo e bohlooho ho itšoara hantle,' me ha e kenye letsoho karabelo leha e le efe ka boeona.
10. HPMC ke ether e seng ea ionic cellulose, kahoo e seng ea ionic ke eng?
A: Ho ea ka mantsoe a layman, li-non-ion ke lintho tse sa keneng metsing. Ionization ke ts'ebetso eo ka eona li-electrolyte li arohanang ka har'a li-ion tse tsamaeang ka bolokolohi linthong tse itseng tse hlapollang (mohlala, metsi, joala). Ka mohlala, sodium chloride (NaCl), letsoai le jeoang letsatsi le leng le le leng, le qhibiliha ka metsing le ionizes, le hlahisa li-ion tsa sodium (Na+) tse tsamaisoang ka bolokolohi le li-ion tsa chloride (Cl). Ke hore, ha HPMC e kenngoa ka metsing, ha e ikarole ho li-ion tse qosoang, empa e teng ka sebōpeho sa molek'hule.
Nako ea poso: Feb-06-2024