Hydroxypropyl Methylcellulose HPMC ke eng?

Hydroxypropyl Methylcellulose HPMC, eo hape e tsejoang e le Cellulose ether, ke polima ea maiketsetso, e qhibilihang ka metsing e nkiloeng ho selulose.E entsoe ka ho fetola cellulose ea tlhaho, e leng karolo ea mantlha ea sebopeho sa limela, ka letoto la lits'ebetso tsa lik'hemik'hale.

Industrial grade hydroxypropyl methylcellulose e khetholloa ka viscosity.Ka kakaretso ho sebelisoa limaraka tse latelang (ho ea ka viscosity).

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, le hoja ho bolokoa ha metsi ho fokola, empa tekanyo e ntle, seretse se seholo se phahame.

Viscosity e bohareng le e phahameng: 20000-70000 e sebelisoa haholo-holo bakeng sa sekhomaretsi sa lithaele, sekontiri sa caulking, seretse se thibelang mapheo, seretse se kopanyang mocheso oa mocheso, joalo-joalo Mabaka: ho sebetsa hantle, metsi a fokolang, le seretse se phahameng sa seretse.

Tšebeliso ea mantlha ea hydroxypropyl methylcellulose (HPMC) ke efe?

HPMCe sebelisoa haholo linthong tsa kaho, lijalo, li-resin tsa maiketsetso, lirafshoa, meriana, lijo, masela, temo, litlolo, koae le liindasteri tse ling.HPMC e ka aroloa ka: moaho, lijo le meriana.Hajoale, boholo ba meaho e hlahisoang lapeng ke ea boemo ba meralo.Sebakeng sa kaho, palo ea phofo ea putty e kholo haholo, hoo e ka bang 90% e sebelisetsoa ho etsa phofo ea putty, 'me e setseng e sebelisoa e le seretse sa samente le sekhomaretsi.

Ho na le mefuta e 'maloa ea hydroxypropyl methylcellulose (HPMC).Phapang ke efe tšebelisong ea tsona?

HPMCe ka aroloa ka lihlahisoa tse qhibilihang hang-hang le tse chesang-tse qhibilihang, tse qhibilihang ka potlako.Ha e qhalakanngoa ka potlako metsing a batang, e nyamela ka metsing.Ka nako ena, mokelikeli ha o na viscosity hobane HPMC e qhalakane feela ka metsing 'me ha ho na ho qhibiliha ha sebele.Hoo e ka bang metsotso e 2, viscosity ea mokelikeli e ile ea e-ba kholoanyane, ea etsa colloid e hlakileng ea viscous.Sehlahisoa sa mofuta oa hot-mellt, tabeng ea metsi a batang, se ka qhalakanngoa ka potlako metsing a chesang 'me sa nyamela metsing a chesang.Ha mocheso o theohela mocheso o itseng, viscosity e bonahala butle-butle ho fihlela ho thehoa li-viscous colloid tse hlakileng.Mofuta o chesang o chesang o ka sebelisoa feela ka putty powder le seretse.Ka sekhomaretsi sa metsi le pente, ho tla ba le ts'ebetso ea clumping, e ke keng ea sebelisoa.E fumaneha ka mefuta e mengata ea lisebelisoa, ka putty powder le seretse, hammoho le ka li-glues le li-coatings.Ha ho na li-contraindications.

Mekhoa ea ho qhibiliha ea hydroxypropyl methylcellulose (HPMC) ke efe?

Mokhoa oa ho qhibiliha ha metsi a chesang: Kaha HPMC ha e qhibilihe metsing a chesang, HPMC ea pele e ka qhalakanngoa ka mokhoa o ts'oanang metsing a chesang ebe e qhibiliha ka potlako nakong ea pholileng.Mekhoa e 'meli e tloaelehileng e hlalosoa ka tsela e latelang: 1), e behoa ka har'a setshelo Kenya palo e hlokahalang ea metsi a chesang le mocheso hoo e ka bang 70°C.Hydroxypropyl methylcellulose e ile ea eketsoa butle-butle ka ho sisinyeha butle, 'me HPMC ea phaphamala holim'a metsi, ebe butle-butle ho thehoa slurry,' me slurry e pholile ka ho sisinyeha.2) Ho eketsa 1/3 kapa 2/3 ea palo e hlokahalang ea metsi ho sekepe le ho futhumatsa ho 70 ° C, ho qhala HPMC ho ea ka 1) ho lokisetsa slurry ea metsi a chesang;ebe o eketsa palo e setseng ea metsi a batang ho metsi a chesang Ka slurry, motsoako o ne o pholile ka mor'a ho hlohlelletsa.Mokhoa oa ho kopanya phofo: phofo ea HPMC e kopantsoe le lintho tse ling tse ngata tse phofo, tse kopantsoeng ka ho feletseng le blender, ebe li qhibiliha ka metsi.Ka nako ena, HPMC e ka qhaloa ntle le ho kopana, hobane sekhutlo se seng le se seng se senyenyane se na le HPMC e nyane feela.Phofo e tla qhibiliha hang-hang ha e kopana le metsi.- Mokhoa ona o sebelisoa ke bahlahisi ba putty powder le seretse.Hydroxypropyl methylcellulose (HPMC) e sebelisoa e le sekontiri se teteaneng le se bolokang metsi seretseng sa putty.

Joang ho ahlola boleng ba hydroxypropyl methylcellulose (HPMC) habonolo le ka mokhoa o hlakileng?

(1) Bosoeu: Le hoja bosoeu bo ke ke ba tseba hore na HPMC e bonolo ho e sebelisa, 'me haeba e eketsoa ho khanya nakong ea tlhahiso, e tla ama boleng ba eona.Leha ho le joalo, lihlahisoa tse ntle hangata li tšoeu.(2) Bokhabane: Bokhabane ba HPMC hangata bo na le 80 mesh le 100 mesh, le 120 mesh e tlase.Ha botle bo botle, bo betere ka kakaretso.(3) Transmittance: Kenya hydroxypropyl methylcellulose (HPMC) ka metsing ho etsa colloid e bonaletsang, 'me u shebe ponaletso ea eona.Ha phetisetso e ntlafala, taba e fokotsehang haholo..Reactor e otlolohileng e na le mokhoa o motle oa ho kenella, 'me reactor e tšekaletseng e mpe le ho feta, empa ha ho bolele hore boleng ba reactor e emeng e betere ho feta ea ketlele.Boleng ba sehlahisoa bo khethoa ke lintlha tse ngata.(4) Matla a khoheli a itseng: Ha khoheli e itseng e le khōlō, boima ba eona bo ba boima le ho feta.Karolelano e kholo, ka kakaretso hobane litaba tsa sehlopha sa hydroxypropyl li phahame, 'me litaba tsa sehlopha sa hydroxypropyl li phahame, ho boloka metsi ho molemo.

Ke bokae ba hydroxypropyl methylcellulose (HPMC) ka putty powder?

Palo ea kereiti ea kaho ea HPMCe sebelisoang lits'ebetsong tse sebetsang e fapana le boemo ba leholimo, mocheso, boleng ba molora oa sebaka sa calcium, foromo ea putty powder le "boleng bo hlokoang ke bareki".Ka kakaretso, pakeng tsa 4 kg le 5 kg.Ka mohlala: sebaka se batang sa putty phofo, ba bangata ba beha lik'hilograma tse 5;Sebaka se chesang haholo ke 5 kg lehlabula le 4.5 kg mariha.

Viscosity ea hydroxypropyl methylcellulose (HPMC) ke eng?

Lerako la putty powder hangata ke 100,000, 'me seretse se omeletseng se hlokahala hore se be holimo.Hoa hlokahala ho sebelisa 150,000.Ho feta moo, karolo ea bohlokoa ka ho fetisisa ea HPMC ke ho boloka metsi, ho lateloa ke ho teteaneng.Ka phofo ea putty, hafeela ho boloka metsi ho le molemo, viscosity e tlaase (70,000-80,000), hape e ka khoneha.Ha e le hantle, viscosity e kholoanyane, ho boloka metsi ho lekanyelitsoeng ho molemo.Ha viscosity e feta 100,000, phello ea viscosity ho boloka metsi ha e kholo haholo.

Matšoao a mantlha a tekheniki a hydroxypropyl methylcellulose (HPMC) ke afe?

Likahare tsa Hydroxypropyl le viscosity, basebelisi ba bangata ba amehile ka matšoao ana a mabeli.Haeba litaba tsa hydroxypropyl li le holimo, ho bolokoa ha metsi hangata ho betere.Viscosity, ho boloka metsi, ho amana (ho e-na le ho feletseng), le viscosity e phahameng, e molemo ka har'a seretse sa samente.

Lisebelisoa tsa mantlha tsa hydroxypropyl methylcellulose (HPMC) ke life?

Lisebelisoa tse ka sehloohong tsa hydroxypropyl methylcellulose (HPMC): k'hothone e hloekisitsoeng, methyl chloride, propylene oxide, lisebelisoa tse ling tse tala, tse kang caustic soda, acid, toluene, isopropanol.

Karolo e ka sehloohong ea HPMC ke efe ha ho sebelisoa putty powder?

HPMC e bapala karolo ea ho tiisa, ho boloka metsi le ho haha ​​​​ka phofo ea putty.Thickening: Cellulose e ka teteaneng ho emisa, ho boloka tharollo e lekana ka mokhoa o ts'oanang, 'me u hane ho sag.Ho boloka metsi: Phofo ea putty e omisitsoe butle, 'me molora o thusang oa calcium o sebetsa tlas'a ketso ea metsi.Kaho: Cellulose e na le phello ea lubricating, e ka etsang hore putty powder 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 tšehetso feela.Putty phofo e nang le metsi, leboteng, ke karabelo ea lik'hemik'hale.Ka lebaka la ho thehoa ha lintho tse ncha, phofo ea putty leboteng e tlosoa leboteng, e siloa ho ba phofo, 'me e sebelisoa hape, e ke ke ea sebetsa, hobane ho entsoe ntho e ncha (calcium carbonate).).Likarolo tse ka sehloohong tsa phofo ea molora oa calcium ke: Ca(OH)2, motsoako oa CaO le palo e nyenyane ea CaCO3, CaO+H2O=Ca(OH)2-Ca(OH)2+CO2=CaCO3+H2O ash calcium in metsi le moea Tlas'a ketso ea CO2, calcium carbonate e thehoa, 'me HPMC e boloka metsi feela, e thusa karabelo e ntle ea molora oa calcium,' me ha e kopanele karabelo leha e le efe ka boeona. 

HPMC ke non-ionic cellulose ether, joale seo e seng ion ke eng?

Ka kakaretso, non-ion ke ntho e seng ka metsing 'me e sa ionized.Ionization e bolela mokhoa oo electrolyte e arohanang ka eona ho ione e tsamaeang ka bolokolohi ka har'a motsoako o itseng o kang metsi kapa joala.Ka mohlala, letsoai le jeoang letsatsi le leng le le leng, sodium chloride (NaCl), e ionized ho hlahisa li-ion tsa sodium (Na +) tse sa lefelloeng hantle le chloride (Cl) e qosoa hampe.Ka mantsoe a mang, HPMC e kenngoa ka metsing 'me ha e ikarole ho li-ion tse qosoang, empa e teng ka mokhoa oa limolek'hule.

Mocheso oa gel oa hydroxypropyl methylcellulose ke ofe?

Thempereichara ea gel ea HPMC e amana le litaba tsa eona tsa methoxy.Ha methoxy e le tlase, mocheso oa gel o phahame.

Na phofo ea putty phofo e na le kamano leha e le efe le HPMC?

Phofo ea putty powder e amana haholo le boleng ba khalsiamo e bohlooho, 'me ha e amane hakaalo le HPMC.Khalsiamo e tlaase ea molora oa calcium le tekanyo e sa lokelang ea CaO le Ca(OH)2 ka har'a molora oa calcium e tla baka tahlehelo ea phofo.Haeba e amana le HPMC, joale haeba ho boloka metsi a HPMC ho futsanehile, ho tla boela ho baka tahlehelo ea phofo.

Phapano ke efe lipakeng tsa mofuta oa hang-hang oa metsi a batang le mofuta o chesang o qhibilihang oa hydroxypropyl methylcellulose ts'ebetsong ea tlhahiso?Mofuta oa hang-hang oa metsi a batang a HPMC o tšoaroa ka holimo ka glyoxal, 'me o qhalakanngoa ka potlako metsing a batang, empa ha e hlile ha e qhibilihe.Ha viscosity e phahame, e qhibiliha.Mofuta o chesang o qhibilihang ha o phekoloe ka glyoxal.Ha palo ea glyoxal e le khōlō, ho hasana ho potlakile, empa viscosity e lieha. 

Monko oa hydroxypropyl methylcellulose (HPMC) ke ofe?

HPMC e hlahisoang ke mokhoa oa solvent e sebelisa toluene le joala ba isopropyl joalo ka lihlapolli.Haeba ho hlatsoa ha ho molemo haholo, ho tla ba le tatso e setseng.

Joang ho khetha hydroxypropyl methylcellulose (HPMC) e nepahetseng bakeng sa merero e fapaneng?

Ts'ebeliso ea phofo ea putty: tlhokahalo e tlase, viscosity ke 100,000, ho lokile, ntho ea bohlokoa ke ho boloka metsi a le betere.Tšebeliso ea seretse: litlhoko tse phahameng, viscosity e phahameng, 150,000 e molemo.Tšebeliso ea sekhomaretsi: E hloka sehlahisoa sa mofuta oa hang-hang, viscosity e phahameng.

Lebitso la lebitso la hydroxypropyl methylcellulose ke eng?

Hydroxypropyl methylcellulose, HydroxypropylMethylCellulose Khutsufatso: HPMC kapa MHPC alias: hypromellose;cellulose hydroxypropyl methyl ether;Hypromellose, Cellulose ether, 2-hydroxypropylmethyl Cellulos eether.Cellulose hydroxypropyl methyl ether, Hyprolose.

Tšebeliso ea HPMC ka putty powder, sesosa sa foam ka putty powder ke sefe?

HPMC e bapala karolo ea ho tiisa, ho boloka metsi le ho haha ​​​​ka phofo ea putty.Se ke oa kenya letsoho karabelong efe kapa efe.Lebaka la bubble: 1, metsi a mangata haholo.2, lera le ka tlase ha le omelle, feela le phunye lera ka holimo, hape ho bonolo ho foam.　

Mokhoa oa ka hare le ka ntle oa putty powder formula?

Ka hare lebota putty phofo: boima k'halsiamo 800KG ea bohlooho calcium 150KG (starch ether, botala bo hloekileng, mobu oa penmine, citric acid, polyacrylamide, joalo-joalo e ka khethoa ka nepo ho eketsa)

Ka ntle lebota putty phofo: samente 350KG, boima calcium 500KG, quartz lehlabathe 150KG, latex Powder 8-12KG, cellulose ether 3KG, starch ether 0.5KG, lehong fiber 2KG

Phapano ke efe lipakeng tsa HPMC le MC?

MC ke methyl cellulose.Ka mor'a hore k'hothone e hloekisitsoeng e phekoloe ka alkali, chloromethane e sebelisoa e le moemeli oa etherifying, 'me letoto la liketso li etsoa ho lokisa cellulose ether.Tekanyo ya phapanyetso ka kakaretso ke 1.6 ho isa ho 2.0, mme tekanyo ya phapanyetso e fapana ho ya ka ho solubility.Ke ea nonionic cellulose ether.

(1) Ho bolokoa ha metsi a methyl cellulose ho ipapisitse le palo ea tlatsetso, viscosity, botle ba likaroloana le sekhahla sa ho qhibiliha.Ka kakaretso, palo ea tlatsetso e kholo, botle bo nyane, 'me viscosity e kholo,' me sekhahla sa ho boloka metsi se phahame.Chelete ea tlatsetso e na le tšusumetso e kholo ho sekhahla sa ho boloka metsi, 'me boemo ba viscosity ha bo lekane le sekhahla sa ho boloka metsi.Sekhahla sa ho qhibiliha se itšetlehile haholo-holo ka tekanyo ea ho fetoloa ha bokaholimo ba likaroloana tsa cellulose le botle ba likaroloana.Har'a li-ether tsa cellulose tse ka holimo, methylcellulose le hydroxypropylmethylcellulose li na le tekanyo e phahameng ea ho boloka metsi.

(2) Methylcellulose e qhibiliha metsing a batang, 'me ho thata ho qhibiliha ka metsing a chesang.Tharollo ea metsi e tsitsitse haholo maemong a pH = 3 ~ 12.E lumellana hantle le starch, guar gum le li-surfactants tse ling tse ngata.Ha mocheso o fihla mocheso oa gelation, ketsahalo ea gelation e etsahala.

(3) Phetoho ea mocheso e tla ama ka botebo sekhahla sa ho boloka metsi sa 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 senyeha haholo, e leng ho amang haholo ho sebetsa ha seretse.

(4) Methyl cellulose e na le phello e kholo mosebetsing le ho khomarela seretse."Ho khomarela" mona ho bolela matla a sekhomaretsi a utloahalang pakeng tsa sesebelisoa sa mosebetsi sa mosebetsi le karoloana ea lebota, ke hore, ho hanyetsa ho kuta ha seretse.Ho khomarela ho hoholo, ho hanyetsa ha seretse sa seretse se seholo, matla a hlokoang ke mosebeletsi nakong ea tšebeliso e boetse e le khōlō, 'me ho sebetsa ha seretse ho futsanehile.

Methylcellulose adhesion e bohareng ba lihlahisoa tsa cellulose ether.HPMC ke hydroxypropylmethylcellulose, e leng nonionic cellulose e tsoakiloeng ether e lokisitsoeng ke letoto la liketso ho sebelisa acetal oxide le methyl chloride e le etherifying agent ka mor'a alkalization ea k'hothone e hloekisitsoeng.Tekanyo ea ho fetola hangata ke 1.2 ho 2.0.Sebopeho sa eona se fapane ho itšetlehile ka karo-karolelano ea methoxyl content le hydroxypropyl content.

(1) Hydroxypropyl methylcellulose e qhibiliha habonolo metsing a batang, ’me ho ka ’na ha e-ba thata ho qhibiliha metsing a chesang.Leha ho le joalo, mocheso oa eona oa gelation metsing a chesang o phahame haholo ho feta oa methyl cellulose.Ho qhibiliha ka metsing a batang ho boetse ho molemo haholo ho feta methyl cellulose.-

(2) The viscosity ea hydroxypropylmethylcellulose e amana le boima ba molek'hule ea eona, 'me viscosity e phahame ha boima ba molek'hule bo le boholo.Mocheso o boetse o ama viscosity ea eona, mocheso oa phahama, 'me viscosity ea fokotseha.Leha ho le joalo, viscosity ea eona e na le mocheso o tlase ho feta methyl cellulose.Tharollo ea eona e tsitsitse mocheso oa kamore.

(3) Hydroxypropyl methylcellulose e tsitsitse ho li-acids le metheo, 'me tharollo ea eona ea metsi e tsitsitse haholo sebakeng sa pH = 2 ~ 12.Soda ea Caustic le metsi a lime ha li na phello e ngata ho thepa ea tsona, empa alkali e potlakisa sekhahla sa ho qhibiliha mme e eketsa viscosity.Hydroxypropyl methylcellulose e na le botsitso ho matsoai a tloaelehileng, empa ha motsoako oa motsoako oa letsoai o phahame, viscosity ea tharollo ea hydroxypropyl methylcellulose e atisa ho eketseha.

(4) Ho boloka metsi a hydroxypropyl methylcellulose ho itšetlehile ka palo ea ho eketsa, viscosity, joalo-joalo, 'me tekanyo ea ho boloka metsi tlas'a chelete e lekanang e phahame ho feta ea methylcellulose.

(5) Hydroxypropyl methylcellulose e ka kopanngoa le motsoako oa polymer o qhibilihang ka metsi ho etsa seaparo sa junifomo, se phahameng sa viscosity.Joalo ka joala ba polyvinyl, starch ether, boka ba meroho le tse ling tse joalo.

(6) Hydroxypropyl methylcellulose e na le sekhomaretsi se phahameng ho seretse ho feta methyl cellulose.

(7) Hydroxypropyl methylcellulose e na le khanyetso e ntle ea enzymatic ho feta methylcellulose, 'me tharollo ea eona ha e na monyetla oa ho senyeha ka mokhoa oa enzymatic ho feta methylcellulose.

HPMC viscosity le kamano ea mocheso, ke eng e lokelang ho eloa hloko lits'ebetsong tse sebetsang?

The viscosity ea HPMC e inversely proporly le mocheso, ke hore, viscosity eketseha le ho fokotseha mocheso.Viscosity ea sehlahisoa seo re atisang ho bua ka sona ke phello ea ho hlahloba tharollo ea 2% ea metsi ka 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 ho loketseng ho haha.Ho seng joalo, ha mocheso o le tlase, viscosity ea cellulose e tla eketseha, 'me ha e hlakoloa, letsoho le tla ba boima.Bohareng ba viscosity: 75000-100000 Haholo-holo e sebelisetsoang putty Lebaka: ho boloka metsi ka viscosity e phahameng: 150000-200000 e sebelisoa haholo-holo bakeng sa polystyrene granule insulation mortar powder le vitrified microbead insulation seretse.Lebaka: viscosity e phahameng, seretse ha se bonolo ho oa E, sag, mohaho o ntlafetseng.Empa ka kakaretso, ha viscosity e phahame, ho boloka metsi ho molemo, limela tse ngata tse omeletseng tsa seretse li nahana ka litšenyehelo, li nkela sebaka se bohareng le se tlaase sa viscosity selulose ka selulose e bohareng ea viscosity (75000-100000).(20000-40000) ho fokotsa chelete e ekelitsoeng.