1. Tšebeliso e ka sehloohong ea hydroxypropyl methylcellulose (HPMC) ke efe?
—— Karabo: Hydroxypropyl methylcellulose e sebelisoa haholo linthong tsa kaho, lijalo, li-resin tsa maiketsetso, lirafshoa, meriana, lijo, masela, temo, litlolo, koae le liindasteri tse ling.Hydroxypropyl methylcellulose e ka aroloa ka sehlopha sa kaho, kereiti ea lijo le kereiti ea meriana ho latela ts'ebeliso ea eona.Hajoale, boholo ba lihlahisoa tsa lapeng 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 mengata ea hydroxypropyl methylcellulose (HPMC), 'me ke phapang efe ea tšebeliso ea bona?
—— Karabo: HPMC e ka aroloa ka mofuta oa hang-hang le mofuta oa ho qhibiliha o chesang.Lihlahisoa tsa mofuta oa hang-hang li hasana ka potlako metsing a batang ebe li nyamela ka metsing.Ka nako ena, mokelikeli ha o na viscosity hobane HPMC e qhalakanngoa feela metsing ntle le ho qhibiliha ha sebele.Hoo e ka bang metsotso e 2, viscosity ea mokelikeli e ntse e eketseha butle-butle, e etsa "viscous colloid" e hlakileng.Lihlahisoa tse chesang, ha li kopane le metsi a batang, li ka qhalana ka potlako metsing a chesang 'me tsa nyamela metsing a chesang.Ha mocheso o theohela ho mocheso o itseng, viscosity e tla hlaha butle-butle ho fihlela e etsa "viscous colloid" e hlakileng.Mofuta oa hot-melt o ka sebelisoa feela ka phofo ea putty le seretse.Ka sekhomaretsi sa metsi le pente, ho tla ba le ts'ebetso ea lihlopha 'me e ke ke ea sebelisoa.Mofuta oa hang-hang o na le mefuta e mengata e fapaneng ea lits'ebetso.E ka sebelisoa ka phofo ea putty le seretse, hammoho le 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 qhale metsing a chesang, HPMC e ka qhalakanngoa ka ho lekana metsing a chesang qalong, ebe e qhala kapele ha e pholile.Mekhoa e 'meli e tloaelehileng e hlalosoa ka tsela e latelang:
1) Kenya palo e hlokahalang ea metsi a chesang ka har'a sets'oants'o 'me ue chese ho fihlela ho 70°C.Hydroxypropyl methylcellulose e ile ea kenngoa butle-butle tlas'a ho sisinyeha butle-butle, qalong HPMC e ne e phaphametse holim'a metsi, 'me butle-butle e theha slurry, e neng e pholile tlas'a ho sisinyeha.
2), eketsa 1/3 kapa 2/3 ea palo e hlokahalang ea metsi ka har'a setshelo, 'me ue chese ho 70 ° C, qhala HPMC ho latela mokhoa oa 1),' me u lokise slurry ea metsi a chesang;joale eketsa palo e setseng ea metsi a batang ho metsi a chesang a slurry, motsoako o ne o pholile ka mor'a ho hlohlelletsa.
Mokhoa oa ho kopanya phofo: kopanya phofo ea HPMC le bongata ba lintho tse ling tse phofo, kopanya ka botlalo le motsoako, ebe u eketsa metsi ho qhibiliha, ebe HPMC e ka qhibiliha ka nako ena ntle le ho kopana, hobane ho na le HPMC e nyenyane feela ho e 'ngoe le e' ngoe e nyenyane. hukung Powder, e tla qhibiliha hang hang ha e kopana le metsi.——Baetsi ba phofo le seretse ba sebelisa mokhoa ona.[Hydroxypropyl methylcellulose (HPMC) e sebelisoa e le ntho e thibelang metsi le ho boloka metsi seretseng 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 ke ke ba tseba hore na HPMC e bonolo ho e sebelisa, ’me haeba mahlahana a bosoeu a eketsoa nakong ea tlhahiso, e tla ama boleng ba eona.Leha ho le joalo, boholo ba lihlahisoa tse ntle li na le bosoeu bo botle.(2) Bokhabane: Bokhabane ba HPMC hangata bo na le 80 mesh le 100 mesh, le 120 mesh e tlase.Boholo ba HPMC e hlahisoang Hebei ke 80 mesh.Ha botle bo botle, ka kakaretso, bo betere.(3) Ho fetisa leseli: kenya hydroxypropyl methylcellulose (HPMC) ka metsing ho etsa colloid e bonaletsang, 'me u shebe phetiso ea eona e bobebe.Ha khanya e fetisa ka bongata, e molemo, e bontšang hore ho na le li-insoluble tse fokolang ho eona..The permeability ea li-reactor tse otlolohileng hangata li ntle, 'me tsa li-reactor tse tšekaletseng li mpefala, empa ha ho bolele hore boleng ba li-reactor tse otlolohileng bo betere ho feta ba li-reactor tse tšekaletseng,' me boleng ba sehlahisoa bo khethoa ke lintlha tse ngata.(4) Matla a khoheli a khethehileng: Ha matla a khoheli a itseng a le maholo, boima bo ba betere.Ntho e ikhethang e kholo, ka kakaretso hobane litaba tsa sehlopha sa hydroxypropyl ho eona li phahame, 'me litaba tsa sehlopha sa hydroxypropyl li phahame, ho boloka metsi ho molemo.
5. Ke bokae ba hydroxypropyl methylcellulose (HPMC) ka phofo ea putty?
—— Karabo: Palo ea HPMC e sebelisoang lits’ebetsong tse sebetsang e fapana ho ea ka boemo ba leholimo, mocheso, boleng ba khalsiamo ea molora oa sebakeng seo, foromo ea putty powder le “boleng bo hlokoang ke bareki”.Ka kakaretso, pakeng tsa 4 kg le 5 kg.Ka mohlala: boholo ba phofo ea putty Beijing ke 5 kg;boholo ba phofo ea putty Guizhou ke 5 kg lehlabula le 4,5 kg mariha;palo ea putty ho Yunnan e batla e le nyane, ka kakaretso ke 3 kg ho isa ho 4 kg, joalo-joalo.
6. Viscosity e nepahetseng ea hydroxypropyl methylcellulose (HPMC) ke efe?
—— Karabo: Ka kakaretso, li-yuan tse 100,000 li lekane bakeng sa phofo ea putty, ’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, ho lateloa ke ho teteaneng.Ka phofo ea putty, hafeela ho boloka metsi ho le molemo 'me viscosity e tlaase (70,000-80,000), hape e ka khoneha.Ha e le hantle, ha viscosity e phahame, ho molemo ho boloka metsi a lekanyelitsoeng.Ha viscosity e feta 100,000, viscosity e tla ama ho boloka metsi.Ha ho sa le joalo.
7. Ke matšoao afe a mantlha a tekheniki a hydroxypropyl methylcellulose (HPMC)?
—— Karabo: Likahare tsa Hydroxypropyl le viscosity, basebelisi ba bangata ba amehile ka matšoao ana a mabeli.Ba nang le hydroxypropyl e ngata hangata ba na le ho boloka metsi ho betere.E nang le viscosity e phahameng e na le ho boloka metsi hantle, ha e le hantle (eseng ka ho feletseng), 'me e nang le viscosity e phahameng e sebelisoa hamolemo ho seretse sa samente.
8. Lisebelisoa tsa mantlha tsa hydroxypropyl methylcellulose (HPMC) ke life?
—— Karabo: Lisebelisoa tse ka sehloohong tsa hydroxypropyl methylcellulose (HPMC): k’hothone e hloekisitsoeng, methyl chloride, propylene oxide, le lisebelisoa tse ling tse tala, caustic soda, acid, toluene, isopropanol, joalo-joalo.
9. Mosebetsi o ka sehloohong oa tšebeliso ea HPMC ka putty powder ke ofe, hona na o etsahala ka lik'hemik'hale?
—— Karabo: Ka phofo ea putty, HPMC e bapala likarolo tse tharo tsa ho tiisa, ho boloka metsi le ho haha.Thickening: Cellulose e ka teteaneng ho emisa le ho boloka seaparo sa tharollo holimo le tlase, le ho hanela ho theoha.Ho boloka metsi: etsa hore phofo ea putty e ome butle-butle, 'me u thuse molora oa calcium ho itšoara tlas'a ketso ea metsi.Kaho: Cellulose e na le phello ea lubricating, e ka etsang hore phofo ea putty e be le mohaho o motle.HPMC ha e nke karolo ho liphetoho leha e le life tsa lik'hemik'hale, empa e bapala karolo ea thuso feela.Ho eketsa metsi ho phofo ea putty le ho e beha leboteng ke karabelo ea lik'hemik'hale, hobane lintho tse ncha li thehoa.Haeba u tlosa phofo ea putty leboteng ho tloha leboteng, u e sila ka phofo, 'me ue sebelise hape, e ke ke ea sebetsa hobane lintho tse ncha (calcium carbonate) li entsoe.) hape.Likarolo tse kholo tsa phofo ea calcium ea molora ke: motsoako oa Ca(OH)2, CaO le palo e nyenyane ea CaCO3, CaO+H2O=Ca(OH)2—Ca(OH)2+CO2=CaCO3↓+H2O Ash calcium. e ka metsing le moeeng Tlas'a ketso ea CO2, calcium carbonate e hlahisoa, ha HPMC e boloka metsi feela, e thusang ho itšoara hantle ha molora oa molora, 'me ha e kopanele karabelo leha e le efe ka boeona.
10. HPMC ke ether e seng ea ionic cellulose, joale ke eng eo e seng ea ionic?
—— Karabo: Ho ea ka mantsoe a layman, li-non-ion ke lintho tse sa keneng metsing.Ionization e bolela mokhoa oo electrolyte e arohanang ka eona ho li-ion tse qosoang tse ka tsamaeang ka bolokolohi ka har'a motsoako o itseng (joaloka metsi, joala).Ka mohlala, sodium chloride (NaCl), letsoai leo re le jang letsatsi le leng le le leng, le qhibiliha ka metsing 'me le ionize ho hlahisa li-ion tsa sodium (Na+) tse tsamaisoang ka bolokolohi le li-ion tsa chloride (Cl) tse qosoang hampe.Ke ho re, ha HPMC e kenngoa ka metsing, e ke ke ea ikarola ho li-ion tse qosoang, empa e teng ka mokhoa oa limolek'hule.
11. Mocheso oa gel oa hydroxypropyl methylcellulose o amana le eng?
—— Karabo: Thempereichara ea gel ea HPMC e amana le litaba tsa eona tsa methoxy.Ha methoxy content↓ e tlase, mocheso oa gel o phahame↑.
12. Na ho na le kamano pakeng tsa lerotholi la putty powder le HPMC?
-- Karabo: Ho lahleheloa ke phofo ea putty powder e amana haholo le boleng ba molora oa calcium, 'me ha e amane hakaalo le HPMC.Khalsiamo e tlase ea khalsiamo e bohlooho le karo-karolelano e sa lokelang ea CaO le Ca(OH)2 ka k'halsiamo e bohlooho e tla baka tahlehelo ea phofo.Haeba e na le ho hong ho amanang le HPMC, joale haeba HPMC e na le ho boloka metsi a futsanehileng, e tla boela e baka tahlehelo ea phofo.Ka mabaka a tobileng, ka kopo sheba potso ea 9.
13. Phapang ke efe pakeng tsa mofuta oa hang-hang oa metsi a batang le mofuta oa hot-soluble oa hydroxypropyl methylcellulose ts'ebetsong ea tlhahiso?
—— Karabo: Mofuta oa hang-hang oa metsi a batang oa HPMC o phekoloa ka holimo ka glyoxal.E qhalana ka potlako metsing a batang, empa ha e le hantle ha e qhale.E qhibiliha feela ha viscosity e eketseha.Mefuta e chesang e qhibilihang ha e phekoloe ka glyoxal.Haeba palo ea glyoxal e le khōlō, ho hasana ho tla potlaka, empa viscosity e tla eketseha butle-butle, 'me haeba chelete e le nyenyane, se fapaneng se tla ba' nete.
14. Monko oa hydroxypropyl methylcellulose (HPMC) ke ofe?
—— Karabo: The HPMC e hlahisoang ke mokhoa oa solvent e sebelisa toluene le isopropanol e le solvents.Haeba ho hlatsoa ha ho molemo haholo, ho tla ba le monko o setseng.
15. Mokhoa oa ho khetha hydroxypropyl methylcellulose (HPMC) e loketseng merero e fapaneng joang?
—— Karabo: Tšebeliso ea phofo ea putty: litlhoko li batla li le tlaase, 'me viscosity ke 100,000, e 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. Leqheka la hydroxypropyl methylcellulose ke lefe?
—— Karabo: Hydroxypropyl Methyl Cellulose, English: Hydroxypropyl Methyl Cellulose Khutsufatso: HPMC kapa MHPC Alias: Hypromellose;Cellulose hydroxypropyl methyl ether;Hypromellose, Cellulose, 2-hydroxypropylmethyl Cellulose ether.Cellulose hydroxypropyl methyl ether Hyprolose.
17. Tšebeliso ea HPMC ka phofo ea putty, ke lebaka lefe la li-bubble ka phofo ea putty?
—— Karabo: Ka phofo ea putty, HPMC e bapala likarolo tse tharo tsa ho tiisa, ho boloka metsi le ho haha.Se ke oa kenya letsoho liketsong leha e le life.Mabaka a lipululana: 1. Kenya metsi a mangata haholo.2. Lera le ka tlaase ha le omelle, feela le phunye lera le leng ka holimo, 'me le bonolo ho foam.
18. Ke mokhoa ofe oa phofo ea putty bakeng sa marako a ka hare le a ka ntle?
—— Karabo: Putty phofo bakeng sa marako a ka hare: k’halsiamo e boima 800KG grey calcium 150KG (starch ether, pure green, pentagentite, citric acid, polyacrylamide, joalo-joalo e ka eketsoa ka nepo)
Ka ntle lebota putty phofo: samente 350KG boima calcium 500KG quartz lehlabathe 150KG latex phofo 8-12KG selulose ether 3KG starch ether 0.5KG lehong fiber 2KG
19. Phapano ke efe lipakeng tsa HPMC le MC?
—— Karabo: MC ke methyl cellulose, e entsoeng ka cellulose ether ka ho phekola k’hothone e hloekisitsoeng ka alkali, ho sebelisa methane chloride e le etherification agent, le ho feta letotong la liketso.Ka kakaretso, tekanyo ea ho fetola ke 1.6 ~ 2.0, 'me solubility e boetse e fapane le likhato tse fapaneng tsa ho fetola.Ke ea non-ionic cellulose ether.
(1) Ho boloka metsi a methyl cellulose ho ipapisitse le palo ea eona ea tlatsetso, viscosity, botle ba likaroloana le sekhahla sa ho qhibiliha.Ka kakaretso, haeba palo ea tlatsetso e le kholo, botle bo nyane, 'me viscosity e kholo, sekhahla sa ho boloka metsi se phahame.Har'a bona, palo ea ho eketsoa e na le tšusumetso e kholo ka ho fetisisa ho tekanyo ea ho boloka metsi, 'me boemo ba viscosity ha bo lekane ka ho toba le tekanyo ea ho boloka metsi.Sekhahla sa ho qhibiliha haholo-holo se itšetlehile ka tekanyo ea phetoho ea bokaholimo ba likaroloana tsa cellulose le botle ba likaroloana.Har'a li-ether tsa cellulose tse ka holimo, methyl cellulose le hydroxypropyl methyl cellulose li na le litekanyetso tse phahameng tsa ho boloka metsi.
(2) Methylcellulose e qhibiliha ka metsing a batang, 'me ho tla ba thata ho qhibiliha ka metsing a chesang.Tharollo ea eona ea metsi e tsitsitse haholo maemong a pH = 3 ~ 12.E na le tumellano e ntle le starch, guar gum, joalo-joalo le li-surfactants tse ngata.Ha mocheso o fihla mocheso oa gelation, gelation e etsahala.
(3) Liphetoho tsa mocheso li tla ama ka botebo tekanyo ea ho boloka metsi ea methyl cellulose.Ka kakaretso, ha thempereichara e phahame, ho mpefala ha metsi ho boloka metsi.Haeba mocheso oa seretse o feta 40 ° C, ho boloka metsi a methyl cellulose ho tla fokotseha haholo, ho ama ka ho teba ho hahoa ha seretse.
(4) Methyl cellulose e na le phello e kholo mohahong le ho khomarela seretse."Ho khomarela" mona ho bolela matla a sekhomaretsi a utloahalang pakeng tsa sesebelisoa sa mosebetsi le karoloana ea lebota, ke hore, ho hanyetsa ha seretse.Sekhomaretsi se phahame, khanyetso ea ho kuta ea seretse e kholo, 'me matla a hlokoang ke basebetsi ha a ntse a sebelisoa le ona a maholo,' me ts'ebetso ea kaho ea seretse e futsanehile.Methyl cellulose adhesion e boemong bo itekanetseng lihlahisoa tsa cellulose ether.
HPMC ke hydroxypropyl methylcellulose, e leng selulose e seng ionic e tsoakiloeng ka k'hothone e hloekisitsoeng ka mor'a alkalization, e sebelisa propylene oxide le methyl chloride e le li-etherification agents, le ka letoto la liketso.Tekanyo ea ho nka sebaka ka kakaretso ke 1.2 ~ 2.0.Thepa ea eona e fapane ka lebaka la likarohano tse fapaneng tsa litaba tsa methoxyl le litaba tsa hydroxypropyl.
(1) Hydroxypropyl methylcellulose e qhibiliha habonolo metsing a batang, 'me e tla kopana le mathata a ho qhibiliha metsing a chesang.Empa mocheso oa eona oa gelation metsing a chesang o phahame haholo ho feta oa methyl cellulose.Ho qhibiliha ha metsi a batang ho boetse ho ntlafala haholo ha ho bapisoa le methyl cellulose.
(2) Hydroxypropyl methylcellulose e tsitsitse ho acid le alkali, 'me tharollo ea eona ea metsi e tsitsitse haholo ka har'a pH = 2 ~ 12.Caustic soda le metsi a lime ha li na phello e fokolang ts'ebetsong ea eona, empa alkali e ka potlakisa ho qhibiliha ha eona le ho eketsa viscosity ea eona.Hydroxypropyl methylcellulose e tsitsitse ho matsoai a tloaelehileng, empa ha motsoako oa motsoako oa letsoai o phahame, viscosity ea hydroxypropyl methylcellulose tharollo e atisa ho eketseha.
(3) Hydroxypropyl methylcellulose e ka kopanngoa le metsoako ea polymer e qhibilihang ka metsing ho etsa tharollo e tšoanang le e phahameng ea viscosity.Joalo ka joala ba polyvinyl, starch ether, boka ba meroho, joalo-joalo.
(4) Ho khomarela ha hydroxypropyl methylcellulose mohahong oa seretse ho phahame ho feta methylcellulose.
(5) Hydroxypropyl methylcellulose e na le khanyetso e ntle ea enzyme ho feta methylcellulose, 'me tharollo ea eona ha e khone ho senyeha ka li-enzyme ho feta methylcellulose.
20. Ke eng e lokelang ho lebisoa tlhokomelo ho ts'ebeliso ea sebele ea kamano pakeng tsa viscosity le mocheso oa hydroxypropyl methylcellulose?
—— Karabo: The viscosity ea HPMC e fapane ka tsela e fapaneng le mocheso, ke ho re, viscosity ea eketseha ha mocheso o fokotseha.Viscosity ea sehlahisoa seo hangata re buang ka sona se bolela sephetho sa tlhahlobo ea tharollo ea metsi a 2% mochesong oa likhato tse 20 tsa Celsius.
Litšebelisong tse sebetsang, hoa lokela ho hlokomeloa hore libakeng tse nang le phapang e kholo ea mocheso pakeng tsa lehlabula le mariha, ho kgothaletswa ho sebelisa viscosity e batlang e le tlaase nakong ea mariha, e leng ho loketseng ho haha.Ho seng joalo, ha mocheso o le tlase, viscosity ea cellulose e tla eketseha, 'me letsoho le tla ba boima ha le senya.
Viscosity e bohareng: 75000-100000 haholo-holo e sebelisetsoang putty
Lebaka: ho boloka metsi hantle
Viscosity e phahameng: 150000-200000 Haholo-holo e sebelisetsoang polystyrene particle thermal insulation mortar rabara phofo le vitrified microbead thermal insulation seretse.
Lebaka: The viscosity e phahame, seretse ha se bonolo ho oa, sag, 'me mohaho oa ntlafatsoa.
Empa ha re bua ka kakaretso, ha viscosity e phahame, ho tla ba molemo ho boloka metsi.Ka hona, ha ho nahanoa ka litšenyehelo, lifeme tse ngata tse omeletseng tsa phofo li nkela sebaka se mahareng le se tlase sa viscosity cellulose (20000-40000) ka selulose e bohareng ea viscosity (20000-40000) ho fokotsa palo ea ho eketsoa.
Nako ea poso: Nov-17-2022