1. Tšebeliso e ka sehloohong ea hydroxypropyl methylcellulose (HPMC) ke efe?
Karabo: HPMC e sebelisoa haholo thepa ea kaho, liphahlo, li-resin tsa maiketsetso, li-ceramic, meriana, lijo, masela, temo, litlolo, koae le liindasteri tse ling. HPMC e ka aroloa ka sehlopha sa kaho, sehlopha sa lijo le sehlopha sa meriana ho latela morero. Hona joale, boholo ba lihlahisoa tsa lapeng ke sehlopha sa kaho. Sehlopha sa kaho, phofo ea putty e sebelisoa ka bongata, hoo e ka bang 90% e sebelisoa bakeng sa phofo ea putty, 'me tse setseng li sebelisoa bakeng sa seretse sa samente le sekhomaretsi.
2. Ho na le mefuta e 'maloa ea hydroxypropyl methylcellulose (HPMC), 'me phapang ea tšebeliso ea tsona ke efe?
Karabo: HPMC e ka aroloa ka mofuta oa hang-hang le mofuta oa ho qhibiliha ho chesang. Lihlahisoa tsa mofuta oa hang-hang li hasana kapele metsing a batang 'me li nyamela ka metsing. Nakong ena, mokelikeli ha o na viscosity hobane HPMC e hasana feela ka metsing ntle le ho qhibiliha ha 'nete. Metsotso e ka bang 2, viscosity ea mokelikeli e eketseha butle-butle, e etsa colloid e bonaletsang e nang le viscous. Lihlahisoa tse chesang tse qhibilihang, ha li kopana le metsi a batang, li ka hasana kapele ka metsing a chesang 'me tsa nyamela ka metsing a chesang. Ha mocheso o theohela mochesong o itseng (sehlahisoa sa k'hamphani ea rona ke likhato tse 65 tsa Celsius), viscosity e hlaha butle-butle ho fihlela e etsa colloid e bonaletsang e nang le viscous. Mofuta oa ho qhibiliha ho chesang o ka sebelisoa feela ka phofo ea putty le seretse. Ka sekhomaretsi le pente ea metsi, ho tla ba le ketsahalo ea lihlopha 'me e ke ke ea sebelisoa. Mofuta oa hang-hang o na le mefuta e mengata ea ts'ebeliso. E ka sebelisoa ka phofo ea putty le seretse, hammoho le sekhomaretsi le pente ea metsi, ntle le lithibelo leha e le life.
3. Mekhoa ea ho qhaqha ha hydroxypropyl methylcellulose (HPMC) ke efe?
Karabo: Mokhoa oa ho qhala metsi a chesang: Kaha HPMC ha e qhalane ka metsing a chesang, HPMC e ka qhalana ka ho lekana ka metsing a chesang mohatong oa pele, ebe e qhalana kapele ha e pholile. Mekhoa e 'meli e tloaelehileng e hlalosoa ka tsela e latelang:
1) Kenya metsi a chesang a hlokahalang ka setshelong 'me u a futhumatse ho fihlela ho 70°C. Hydroxypropyl methylcellulose e ile ea eketsoa butle-butle tlas'a ho hlohlelletsa butle, qalong HPMC e ile ea phaphamala holim'a metsi, 'me butle-butle ea etsa lerōle, le ileng la pholisoa tlas'a ho hlohlelletsa.
2), eketsa 1/3 kapa 2/3 ea metsi a hlokahalang ka setshelong, 'me u a futhumatse ho fihlela ho 70°C, u hasanye HPMC ho latela mokhoa oa 1), 'me u lokise slurry ea metsi a chesang; ebe u eketsa metsi a batang a setseng ho slurry ea metsi a chesang, motsoako o ile oa pholile ka mor'a ho hlohlelletsa.
Mokhoa oa ho kopanya phofo: kopanya phofo ea HPMC le lintho tse ling tse ngata tse nang le phofo, kopanya hantle ka mochini o kopanyang, ebe u eketsa metsi ho qhibiliha, ebe HPMC e ka qhibiliha ka nako ena ntle le ho kopana, hobane ho na le HPMC e nyane feela sekhutlong se seng le se seng se senyenyane Phofo, e tla qhibiliha hang ha e kopana le metsi. ——Bahlahisi ba phofo ea putty le seretse ba sebelisa mokhoa ona. [Hydroxypropyl methylcellulose (HPMC) e sebelisoa e le sesebelisoa se teteaneng le se bolokang metsi ka har'a seretse sa phofo ea putty.]
4. U ka ahlola boleng ba hydroxypropyl methylcellulose (HPMC) joang ka bonolo le ka tlhaho?
Karabo: (1) Bosweu: Le hoja bosweu bo ke ke ba tseba hore na HPMC e bonolo ho e sebedisa, mme haeba ho eketswa dihlahiswa tse tshweu nakong ya tlhahiso, e tla ama boleng ba yona. Leha ho le jwalo, boholo ba dihlahiswa tse ntle di na le bosweu bo botle. (2) Botle: Botle ba HPMC ka kakaretso bo na le letlowa le 80 le letlowa le 100, mme letlowa le 120 le tlase. Bongata ba HPMC e hlahiswang Hebei ke letlowa le 80. Ha botle bo le bonyenyane, ka kakaretso, bo molemo. (3) Phetiso ya lesedi: kenya hydroxypropyl methylcellulose (HPMC) ka metsing ho etsa colloid e bonaletsang, mme o shebe phetiso ya yona ya lesedi. Ha phetiso ya lesedi e le kgolo, e molemo, e leng se bontshang hore ho na le dintho tse sa qhibiliheng ho yona. . Ho kena ha di-reactor tse otlolohileng ka kakaretso ho hotle, mme ha di-reactor tse otlolohileng ho mpefala, empa ha ho bolele hore boleng ba di-reactor tse otlolohileng bo betere ho feta ba di-reactor tse otlolohileng, mme boleng ba sehlahiswa bo laolwa ke mabaka a mangata. (4) Matla a khoheli a itseng: Ha matla a khoheli a itseng a le maholo, boima bo boima bo betere. Boleng bo boholo, ka kakaretso hobane dikahare tsa sehlopha sa hydroxypropyl ho sona di phahame, mme dikahare tsa sehlopha sa hydroxypropyl di phahame, ho boloka metsi ho betere.
5. Ke bokae ba hydroxypropyl methylcellulose (HPMC) ka har'a phofo ea putty?
Karabo: Bongata ba HPMC bo sebediswang ditshebedisong tse sebetsang bo fapana ho latela boemo ba lehodimo, mocheso, boleng ba khalsiamo ya molora wa lehae, foromo ya phofo ya putty le "boleng bo hlokoang ke bareki". Ka kakaretso, pakeng tsa 4 kg le 5 kg. Mohlala: boholo ba phofo ya putty Beijing ke 5 kg; boholo ba phofo ya putty Guizhou ke 5 kg hlabula le 4.5 kg mariha; bongata ba putty Yunnan bo nyane haholo, ka kakaretso ho tloha ho 3 kg ho isa ho 4 kg, jj.
6. Ke bokae bo nepahetseng ba hydroxypropyl methylcellulose (HPMC)?
Karabo: Phofo ea putty ka kakaretso ke li-yuan tse 100,000, 'me litlhoko tsa seretse li phahame, 'me li-yuan tse 150,000 lia hlokahala bakeng sa tšebeliso e bonolo. Ho feta moo, mosebetsi oa bohlokoa ka ho fetisisa oa HPMC ke ho boloka metsi, o lateloa ke ho teteana. Phofong ea putty, hafeela ho boloka metsi ho le molemo 'me viscosity e le tlase (70,000-80,000), hoa khoneha hape. Ehlile, ha viscosity e phahame, ho boloka metsi ho molemo. Ha viscosity e feta 100,000, viscosity e tla ama ho boloka metsi. Ha ho sa na letho le leholo.
7. Lipontšo tse ka sehloohong tsa tekheniki tsa hydroxypropyl methylcellulose (HPMC) ke life?
Karabo: Bongata ba hydroxypropyl le viscosity, basebelisi ba bangata ba tšoenyehile ka matšoao ana a mabeli. Ba nang le hydroxypropyl e ngata ka kakaretso ba na le ho boloka metsi ho betere. E nang le viscosity e phahameng e na le ho boloka metsi ho betere, ka tekanyo e batlang e sa lekana (e seng ka ho feletseng), 'me e nang le viscosity e phahameng e sebelisoa hamolemo ka seretse sa samente.
8. Lisebelisoa tse ka sehloohong tsa hydroxypropyl methylcellulose (HPMC) ke life?
Karabo: Lisebelisoa tse ka sehloohong tse tala tsa hydroxypropyl methylcellulose (HPMC): k'hothone e hloekisitsoeng, methyl chloride, propylene oxide, le lisebelisoa tse ling tse tala, caustic soda, asiti, toluene, isopropanol, jj.
9. Mosebetsi o ka sehloohong oa ho sebelisoa ha HPMC phofong ea putty ke ofe, hona na e etsahala ka lik'hemik'hale?
Karabo: Phofong ea putty, HPMC e bapala likarolo tse tharo tsa ho teteana, ho boloka metsi le kaho. Ho teteana: Cellulose e ka teteana ho emisa le ho boloka tharollo e lekana holimo le tlase, le ho hanela ho thekesela. Ho boloka metsi: etsa hore phofo ea putty e ome butle, 'me e thuse calcium ea molora ho arabela tlas'a ts'ebetso ea metsi. Kaho: Cellulose e na le phello ea ho tlotsa, e ka etsang hore phofo ea putty e be le kaho e ntle. HPMC ha e kenelle liketsong life kapa life tsa lik'hemik'hale, empa e bapala karolo e thusang feela. Ho eketsa metsi phofong ea putty le ho e beha leboteng ke karabelo ea lik'hemik'hale, hobane lintho tse ncha lia thehoa. Haeba u tlosa phofo ea putty leboteng, u e sila hore e be phofo, 'me u e sebelise hape, e ke ke ea sebetsa hobane lintho tse ncha (calcium carbonate) li se li entsoe. ) le tsona. Dikarolo tse ka sehloohong tsa phofo ya khalsiamo ya molora ke: motswako wa Ca(OH)2, CaO le palo e nyane ya CaCO3, CaO+H2O=Ca(OH)2 —Ca(OH)2+CO2=CaCO3↓+H2O Khalsiamo ya molora e metsing le moyeng Tlas'a ketso ya CO2, calcium carbonate e a hlahiswa, ha HPMC e boloka metsi feela, e thusa karabelo e betere ya khalsiamo ya molora, mme ha e kenelle karabelong efe kapa efe ka boyona.
10. HPMC ke ether ya cellulose e seng ya ionic, jwale e seng ya ionic ke eng?
Karabo: Ka kakaretso, non-ion ke ntho e ke keng ea ionisa ka metsing. Ionization e bolela mokhoa oo electrolyte e aroloang ho ba li-ion tse tjhajisitsoeng tse ka tsamaeang ka bolokolohi ka har'a solvent e itseng (joalo ka metsi, joala). Mohlala, sodium chloride (NaCl), letsoai leo re le jang letsatsi le leng le le leng, lea qhibiliha ka metsing 'me lea ionisa ho hlahisa li-ion tsa sodium tse tsamaeang ka bolokolohi (Na+) tse tjhajisitsoeng ka nepo le li-ion tsa chloride (Cl) tse tjhajisitsoeng hampe. Ke hore, ha HPMC e kenngoa ka metsing, e ke ke ea arohana le li-ion tse tjhajisitsoeng, empa e teng ka sebopeho sa limolek'hule.
11. Thempereichara ea gel ea hydroxypropyl methylcellulose e amana le eng?
Karabo: Thempereichara ea gel ea HPMC e amana le methoxy ea eona, ha methoxy e le tlase ↓, thempereichara ea gel e le holimo ↑.
12. Na ho na le kamano efe kapa efe pakeng tsa lerotholi la phofo ea putty le HPMC?
Karabo: Tahlehelo ea phofo ea putty e amana haholo le boleng ba calcium ea molora, 'me ha e amane hakaalo le HPMC. Khalsiamo e tlase ea calcium ea grey calcium le karolelano e sa lokelang ea CaO le Ca(OH)2 ka har'a calcium e putsoa li tla baka tahlehelo ea phofo. Haeba e amana le HPMC, joale haeba HPMC e na le ho boloka metsi ho fokolang, e tla boela e bake tahlehelo ea phofo. Ka mabaka a itseng, ka kopo sheba potso ea 9.
13. Phapang ke efe pakeng tsa mofuta oa hang-hang oa metsi a batang le mofuta oa hydroxypropyl methylcellulose o qhibilihang ka ho chesang ts'ebetsong ea tlhahiso?
Karabo: Mofuta oa HPMC oa metsi a batang o phekoloa ka glyoxal holim'a metsi, 'me o hasana kapele metsing a batang, empa ha o qhibilihe e le kannete. O qhibiliha feela ha viscosity e eketseha. Mefuta ea ho qhibiliha ho chesang ha e phekoloe holim'a metsi ka glyoxal. Haeba bongata ba glyoxal bo le boholo, ho hasana ho tla ba kapele, empa viscosity e tla eketseha butle, 'me haeba bongata bo le bonyenyane, se fapaneng le seo e tla ba 'nete.
14. Monko oa hydroxypropyl methylcellulose (HPMC) ke ofe?
Karabo: HPMC e hlahisoang ke mokhoa oa ho qhibiliha e sebelisa toluene le isopropanol e le li-solvent. Haeba ho hlatsoa ho se monate haholo, ho tla ba le monko o setseng.
15. Mokhoa oa ho khetha hydroxypropyl methylcellulose (HPMC) e loketseng merero e fapaneng?
Karabo: Tšebeliso ea phofo ea putty: litlhoko li tlase haholo, 'me viscosity ke 100,000, e leng se lekaneng. Ntho ea bohlokoa ke ho boloka metsi hantle. Tšebeliso ea seretse: litlhoko tse phahameng, viscosity e phahameng, 150,000 e molemo. Tšebeliso ea sekhomaretsi: lihlahisoa tsa hang-hang tse nang le viscosity e phahameng lia hlokahala.
16. Lebitso le leng la hydroxypropyl methylcellulose ke lefe?
Karabo: Hydroxypropyl Methyl Cellulose, Senyesemane: Hydroxypropyl Methyl Cellulose Kakaretso: HPMC kapa MHPC Lebitso le leng: Hypromellose; Cellulose hydroxypropyl methyl ether; Hypromellose, Cellulose, 2-hydroxypropyl methyl Cellulose ether. Cellulose hydroxypropyl methyl ether Hyprolose.
17. Tšebeliso ea HPMC ka har'a phofo ea putty, lebaka la lipululana ka har'a phofo ea putty ke lefe?
Karabo: Phofong ea putty, HPMC e bapala karolo e meraro ea ho teteana, ho boloka metsi le kaho. U se ke ua kenya letsoho liketsong life kapa life. Mabaka a lipululana: 1. Kenya metsi a mangata haholo. 2. Lera le ka tlase ha le ome, ho hohla lera le leng ka holimo, 'me ho bonolo ho le foam.
18. Foromo ea phofo ea putty bakeng sa mabota a kahare le a kantle ke efe?
Karabo: Phofo ea putty ea leboteng e ka hare: calcium e boima 800KG, calcium e putsoa 150KG (starch ether, botala bo hloekileng, mobu oa Pengrun, citric acid, polyacrylamide, jj. li ka eketsoa ka nepo)
Phofo ea putty ea lebota la kantle: samente 350KG calcium e boima 500KG lehlabathe la quartz 150KG phofo ea latex 8-12KG ether ea cellulose 3KG ether ea starch 0.5KG faeba ea lehong 2KG
Nako ea poso: Tshitwe-13-2022