Hydroxypropyl methyl cellulose ke eng?

Kenyelletso ea Hydroxypropyl Methyl Cellulose
Hydroxypropyl methylcellulose, eo hape e tsejoang e le hypromellose le HPMC cellulose hydroxypropyl methyl ether, e entsoe ka selulose e hloekileng ea k'hothone e le thepa e tala, e hlahisoang ka ho khetheha tlas'a maemo a alkaline. HPMC ke phofo e tšoeu, e sa latsoeheng, e se nang monko, e se nang chefo, e sa fetoheng ka ho feletseng 'meleng oa motho le ho tsoa' meleng. Sehlahisoa se qhibiliha ka metsing, empa ha se na metsi a chesang. Tharollo ea metsi ke ntho e se nang mebala e bonaletsang ea viscous. HPMC na le thickening babatsehang, emulsifying, filimi-fopa, qhalakanya, sireletsa colloid, ho boloka mongobo, adhesion, acid le alkali ho hanyetsa, ho hanyetsa enzyme le thepa e 'ngoe, 'me ho pharaletseng sebelisoa ka kaho, barbotage, meriana, lijo, masela, masimo a oli, litlolo, ho hlatsoa Agents, ceramics, enke le mekhoa polymerization lik'hemik'hale.

1. Khalsiamo e tlaase ea k'halsiamo e bohlooho le tekanyo e sa lokelang ea CaO le Ca (OH) 2 ka grey calcium e tla baka tahlehelo ea phofo. Haeba e na le ho hong ho amanang le HPMC, joale haeba ho boloka metsi a HPMC ho futsanehile, ho tla boela ho baka tahlehelo ea phofo. Na tahlehelo ea phofo ea putty powder e amana le hydroxypropyl methylcellulose? Tahlehelo ea phofo ea putty powder e amana haholo-holo le boleng ba molora oa calcium, 'me ha e amane hakaalo le HPMC.

2. Mosebetsi oa bohlokoa ka ho fetisisa oa hydroxypropyl methylcellulose 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.

Viscosity ea hydroxypropyl methylcellulose (HPMC) ke eng?

Putty powder ka kakaretso ke li-yuan tse 100,000, 'me litlhoko tsa seretse li holimo,' me li-yuan tse 150,000 lia hlokahala bakeng sa tšebeliso e bonolo.

3. Lisebelisoa tsa mantlha tsa hydroxypropyl methylcellulose ke life? 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.

4. Lebaka la monko oa hydroxypropyl methylcellulose ke lefe? Hydroxypropyl methylcellulose e hlahisoang ke mokhoa oa solvent e sebelisa toluene le isopropanol e le li-solvents. Haeba ho hlatsoa ha ho molemo haholo, ho tla ba le monko o setseng .

5. Hydroxypropyl methylcellulose: E nang le lintho tse ngata tsa hydroxypropyl hangata e molemo ho boloka metsi. 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. Matšoao a mantlha a tekheniki ke afe? Likahare tsa Hydroxypropyl le viscosity, basebelisi ba bangata ba amehile ka matšoao ana a mabeli.

Na ketsahalo ea efflorescence ka seretseng e amana le hydroxypropyl methylcellulose?

Nakong e fetileng, moreki e mong o ile a re sehlahisoa seo se na le efflorescence, 'me o ne a ntse a fafatsa. Shotcrete: Mosebetsi o ka sehloohong ke ho koahela mokokotlo, ho roughen, le ho eketsa sekhomaretsi pakeng tsa lerako le thepa e ka holimo. Sebelisa hanyenyane haholo, feela fafatsa lera le tšesaane leboteng. Mona ke setšoantšo sa ketsahalo ea efflorescence eo moreki a nthomileng eona: Setšoantšo Seo ke se entseng pele ke hore ka sebele ha se sesosa sa hydroxypropyl methylcellulose, hobane hydroxypropyl methylcellulose ha e tsamaisane le ntho leha e le efe e ka har'a sethunya e ileng ea itšoara. 'Me ketsahalo ea efflorescence ke: konkreite e tloaelehileng ke silicate, ha e kopana le moea kapa mongobo leboteng, ion silicate e kena karabelo ea hydrolysis,' me hydroxide e hlahisoang e kopana le li-ion tsa tšepe ho etsa hydroxide e nang le solubility e tlaase (lintho tsa lik'hemik'hale Alkaline) , ha mocheso o phahama, mouoane oa metsi oa fetoha mouoane, 'me hydroxide e theoha leboteng. Ka ho fetoha ha metsi butle-butle ha metsi, hydroxide e kenngoa holim'a samente ea konkreite, e bokellang ka mor'a nako, e etsa mokhabiso oa pele Ha pente kapa pente e phahamisoa 'me e se e sa khomarele lebota, ho soeufala, ho phunya. ho ebola ho tla etsahala. Mokhoa ona o bitsoa "pan-alkali". Kahoo ha se ubiquinol e bakoang ke hydroxypropyl methylcellulose

Moreki o ile a boela a bua ka ntho e makatsang: grout e fafalitsoeng eo ae entseng e tla ba le ts'ebetso ea pan-alkaline leboteng la konkreite, empa e ke ke ea hlaha leboteng la litene tse chesitsoeng, e leng se bontšang hore silicon ka samente e sebelisoang leboteng la konkreite Letsoai (ka matla a alkaline). salts) li phahame haholo. Efflorescence e bakoang ke mouoane oa metsi a sebelisoang ho fafatsa grouting. Leha ho le joalo, ha ho na silicate leboteng la litene tse chesitsoeng 'me ha ho na efflorescence e tla etsahala. Kahoo ts'ebetso ea efflorescence ha e amane le ho fafatsa.

Tharollo:

1. Likahare tsa silicate tsa samente ea motheo ea konkreite li fokotsehile.

2. Sebelisa anti-alkali back coating agent, tharollo e kenella ka har'a lejoe ho thibela capillary, e le hore metsi, Ca (OH) 2, letsoai le lintho tse ling li se ke tsa kenella, 'me li khaola tsela ea pan-alkaline phenomenon.

3. Thibela ho kenella ha metsi, 'me u se ke ua fafatsa metsi a mangata pele u haha.

Phekolo ea phenomenon ea pan-alkaline:
Setsi sa ho hloekisa lejoe la efflorescence 'marakeng se ka sebelisoa. Mokelikeli ona oa ho hloekisa ke mokelikeli o khanyang o se nang 'mala o entsoeng ka li-surfactants le li-solvents tse seng tsa ionic. E na le phello e itseng ho hloekisoeng ha libaka tse ling tsa majoe a tlhaho. Empa pele o e sebelisa, etsa bonnete ba hore o etsa sampole e nyane ea tlhahlobo ho leka phello le ho etsa qeto ea ho e sebelisa.

Tšebeliso ea Cellulose indastering ea Kaho

1. Seretse sa samente: Ntlafatsa ho hasana ha lehlabathe la samente, ho ntlafatsa haholo polasetiki le ho boloka metsi a seretse, ho ba le phello ea ho thibela mapetsong, le ho matlafatsa matla a samente.
2. Samente ea lithaele: ntlafatsa polasetiki le ho boloka metsi a seretse sa lithaele tse hatelitsoeng, ho ntlafatsa ho khomarela lithaele, le ho thibela ho chekoa.
3. Ho roala ha thepa ea refractory e kang asbestos: e le moemeli oa ho emisa, ho ntlafatsa metsi, hape ho ntlafatsa matla a ho kopanya ho substrate.
4. Gypsum coagulation slurry: ntlafatsa ho boloka metsi le ts'ebetso, le ho ntlafatsa ho khomarela substrate.
5. Samente e kopantsoeng: e kenngoa ho samente e kopanetsoeng bakeng sa boto ea gypsum ho ntlafatsa metsi le ho boloka metsi.
6. Latex putty: ntlafatsa metsi le ho boloka metsi a resin latex-based putty.
7. Stucco: Joaloka pente ho nkela lihlahisoa tsa tlhaho sebaka, e ka ntlafatsa ho boloka metsi le ho ntlafatsa matla a ho kopanya le substrate.
8. Liaparo: Joaloka polasetiki bakeng sa liphahlo tsa latex, e ka ntlafatsa ts'ebetso le metsi a liphahlo le li-putty powders.
9. Ho fafatsa pente: E na le phello e ntle ho thibela ho teba ha samente kapa lisebelisoa tsa ho fafatsa ka latex le li-fillers le ho ntlafatsa metsi le mokhoa oa ho fafatsa.
10. Lihlahisoa tsa bobeli tsa samente le gypsum: e sebelisoa e le sekontiri se entsoeng ka extrusion bakeng sa samente-asbestos le lintho tse ling tsa hydraulic ho ntlafatsa metsi le ho fumana lihlahisoa tse bōpiloeng tse tšoanang.
11. Lerako la fiber: Ka lebaka la phello e khahlanong le enzyme le e khahlanong le baktheria, e sebetsa e le setlamo sa marako a lehlabathe.
12. Tse ling: E ​​ka sebelisoa e le moemeli oa ho boloka bubble (PC version) bakeng sa seretse se tšesaane sa letsopa le seretse sa hydraulic operator.

Likopo tsa indasteri ea lik'hemik'hale
1. Polymerization ea vinyl chloride le vinylidene: E le ho fanyeha stabilizer le dispersant nakong ea polymerization, e ka sebelisoa hammoho le vinyl alcohol (PVA) hydroxypropyl cellulose (HPC) ho laola sebopeho sa likaroloana le ho aroloa ha likaroloana.
2. Sekhomaretsi: Joaloka sekhomaretsi bakeng sa wallpaper, se ka sebelisoa hammoho le vinyl acetate latex pente ho e-na le starch.
3. Likokoana-hloko: Ho eketsoa ho chefo e bolaeang likokoanyana le litlama, e ka ntlafatsa phello ea ho khomarela ha u fafatsa.
4. Latex: Emulsion stabilizer bakeng sa latex ea asphalt, thickener bakeng sa rabara ea styrene-butadiene (SBR) latex.
5. Binder: joalo ka setlamo sa ho etsa lipensele le likrayone.

Likopo indastering ea litlolo
1. Shampoo: Ntlafatsa viscosity ea shampoo, sesepa, le sesebelisoa sa ho hloekisa le botsitso ba lipululana.
2. Sesepa sa meno: Ntlafatsa metsi a sesepa sa meno.

Likopo indastering ea meriana
1. Encapsulation: Moemeli oa encapsulation o entsoe ka tharollo ea organic solvent kapa tharollo ea metsi bakeng sa tsamaiso ea lithethefatsi, haholo-holo bakeng sa spray encapsulation ea granules e lokiselitsoeng.
2. Moemeli ea fokolang: 2-3 dikgerama ka letsatsi, 1-2G nako le nako, phello e tla hlaha matsatsing a 4-5.
3. Marotholi a mahlo: Kaha khatello ea osmotic ea methylcellulose aqueous solution e tšoana le ea meokho, ha e halefe haholo mahlong, kahoo e kenngoa marotholi a mahlo e le setlolo bakeng sa ho kopana le lense ea leihlo.
4. Jelly: e le thepa ea motheo ea meriana ea ka ntle e kang jelly kapa setlolo.
5. Meriana ea ho qoelisa: e le motenya, moemeli oa ho boloka metsi