Tšebeliso e pharalletseng ea Hydroxypropyl Methyl Cellulose

Hydroxypropyl methyl cellulose, e bitsoang (HPMC): hydroxypropyl methyl cellulose (HPMC) ke phofo e tšoeu e sa nkheng, e sa latsoeheng, e se nang chefo, ho na le mefuta e 'meli ea hang-hang le e sa potlakang, hang-hang, Ha e kopana le metsi a batang, e potlakile. e qhalakana ebe e nyamella ka metsing. Ka nako ena, mokelikeli ha o na viscosity. Ka mor'a metsotso e ka bang 2, viscosity ea mokelikeli e eketseha, e etsa "viscous colloid" e hlakileng. Mofuta oo e seng oa hang-hang: E ​​ka sebelisoa feela lihlahisoa tsa phofo tse omeletseng tse kang putty powder le seretse sa samente. E ke ke ea sebelisoa ka sekhomaretsi sa metsi le pente, 'me ho tla ba le clumping.

A. Lintho tsa 'mele le tsa lik'hemik'hale

1. Ponahalo: Phofo e tšoeu kapa e bosoeu, e sa nkheng ebile ha e latsoehe.

2. Boholo ba likaroloana: tekanyo ea ho feta ea 100 mesh e kholo ho feta 98.5%; tekanyo ea ho feta ea 80 mesh e kholo ho feta 100%.

3. Mocheso oa carbonization: 280-300 ° C.

4. Boima bo bonahalang: 0.25-0.70g / (hangata ho pota 0.5g /), matla a khoheli a khethehileng 1.26-1.31.

5. Mocheso oa ho fetola mebala: 190-200 ° C.

6. Khatello ea sefahleho: 20% tharollo ea metsi ke 42-56dyn / cm.

7. Solubility: Ho qhibiliha ka metsing le lintho tse ling tse hlapollang tse phelang, tse kang ethanol/metsi, propanol/metsi, dichloroethane, joalo-joalo ka tekanyo e loketseng. Tharollo ea metsi e na le mosebetsi oa holim'a metsi, pepeneneng e phahameng le ts'ebetso e tsitsitseng. Lihlahisoa tse nang le litlhaloso tse fapaneng li na le mocheso o fapaneng oa gelation, e leng thepa ea mocheso oa mocheso oa HPMC. Solubility e fapana ka viscosity, ho theola viscosity, ho qhibiliha ho hoholo, litlhaloso tse fapaneng tsa HPMC li na le phapang e itseng ea ts'ebetso, 'me ho qhibiliha ha HPMC metsing ha ho amehe ke boleng ba pH.

8. Ka ho fokotseha ha methoxy content, ntlha ea gel ea HPMC ea eketseha, ho qhibiliha ha metsi ho fokotseha, 'me mosebetsi oa holim'a metsi o boetse oa fokotseha.

9. HPMC e boetse e na le litšoaneleho tsa bokhoni bo matla, ho tsoa ha letsoai, molora o tlaase, botsitso ba pH, ho boloka metsi, botsitso ba dimensional, thepa e babatsehang ea ho etsa filimi, mefuta e mengata ea ho hanyetsa li-enzyme, ho arohana le ho kopana.

Mosebetsi oa Hydroxypropyl methylcellulose:

• E ka tiisa seretse se sa tsoa tsoakoa e le hore se be le viscosity e itseng ea metsi le ho thibela ho arohana. (ho teteana)

• Ho boloka metsi hape ke tšobotsi ea bohlokoa ka ho fetisisa, e thusang ho boloka metsi a sa lefelloeng ka har'a seretse, e le hore thepa ea samente e be le nako e ngata ea ho nosetsa ka mor'a hore seretse se sebelisoe. (ho boloka metsi)

• E na le thepa ea ho kenya moea, e ka hlahisang li-bubble tsa moea tse tšoanang le tse ntle ho ntlafatsa ho sebetsa ha seretse.

B. Melemo ea hydroxypropyl methylcellulose tšimong ea thepa ea mohaho

tshebetso:

1. Ho bonolo ho kopanya le phofo e omeletseng ea phofo.

2. E na le litšobotsi tsa ho hasana ha metsi a batang.

3. Emisa likaroloana tse tiileng ka katleho, ho etsa hore motsoako o be bonolo le o ts'oanang.

motsoako:

1. Motsoako o omileng o nang le cellulose ether o ka kopanngoa habonolo le metsi.

2. Fumana ka potlako ho lumellana ho lakatsehang.

3. Ho qhibiliha ha cellulose ether ho potlakile ebile ha ho na maqhubu.

kaho:

1. Ntlafatsa lubricity le polasetiki ho ntlafatsa machinability le ho etsa hore kaho ea sehlahisoa e be bonolo le ho potlaka.

2. Ntlafatsa litšobotsi tsa ho boloka metsi le ho lelefatsa nako ea ho sebetsa.

3. E thusa ho thibela phallo e otlolohileng ea seretse, seretse le lithaele. Eketsa nako ea ho pholisa le ho ntlafatsa katleho ea mosebetsi.

4. Ntlafatsa matla a maqhama a li-adhesive tsa lithaele.

5. Ntlafatsa shrinkage ea anti-crack le matla a anti-cracking a seretse le boto ea motsoako oa motsoako.

6. Ntlafatsa litaba tsa moea ka har'a seretse, ho fokotsa haholo monyetla oa ho phatloha.

7. E ka ntlafatsa khanyetso ea phallo e otlolohileng ea li-adhesive tsa lithaele.

8. Sebelisa ka Max starch ether, phello e molemo!

C. Kopo ea hydroxypropyl methylcellulose tšimong ea kaho

Putty e thibelang metsi bakeng sa marako a ka hare le a ka ntle:

1. Ho boloka metsi ka mokhoa o babatsehang, ho ka lelefatsang nako ea kaho le ho ntlafatsa katleho ea mosebetsi. Lubricity e phahameng e etsa hore kaho e be bobebe hape e be bonolo. E fana ka sebopeho se setle le se ts'oanang bakeng sa libaka tse boreleli tsa putty.

2. Viscosity e phahameng, ka kakaretso 100,000 ho 150,000 lithupa, e etsa hore putty e khomarele lebota haholoanyane.

3. Ntlafatsa khanyetso ea shrinkage le ho hanyetsa mapheo, ho ntlafatsa boleng ba holim'a metsi.

Tekanyo ea litšupiso: 0.3 ~ 0.4% bakeng sa marako a ka hare; 0,4 ~ 0.5% bakeng sa marako a ka ntle;

Seretse sa ka ntle sa lebota

1. Ntlafatsa ho khomarela ka holim'a lerako, 'me u ntlafatse ho boloka metsi, e le hore matla a seretse a ka ntlafatsoa.

2. Ntlafatsa lubricity le polasetiki ho ntlafatsa ts'ebetso ea kaho. E ka sebelisoa hammoho le Shenglu brand starch ether ho matlafatsa seretse, seo ho leng bonolo ho se haha, se boloka nako le ho ntlafatsa ts'ebetso ea litšenyehelo.

3. Laola ho kenella ha moea, ka tsela eo u tlose li-micro-cracks tsa ho roala le ho etsa sebaka se setle sa boreleli.

Lisebelisoa tsa gypsum plaster le samente

1. Ntlafatsa ho ts'oana, etsa hore pente ea plaster e be bonolo ho hasana, 'me u ntlafatse bokhoni ba ho thibela ho senya ho matlafatsa metsi le ho pompa. Ka tsela eo ho ntlafatsa katleho ea mosebetsi.

2. Ho boloka metsi a mangata, ho lelefatsa nako ea ho sebetsa ea seretse, le ho hlahisa matla a phahameng a mechine ha a tiisa.

3. Ka ho laola ho tsitsisa ha seretse ho etsa seaparo sa boleng ba boleng bo phahameng.

Li-plaster tse entsoeng ka samente le lirafshoa tsa masonry

1. Ntlafatsa ho ts'oana, etsa hore ho be bonolo ho roala seretse sa mocheso oa mocheso, le ho ntlafatsa bokhoni ba ho thibela ho senya ka nako e le 'ngoe.

2. Ho boloka metsi a mangata, ho lelefatsa nako ea ho sebetsa ea seretse, ho ntlafatsa katleho ea mosebetsi, le ho thusa seretse ho etsa matla a phahameng a mechine nakong ea ho beha.

3. Ka ho boloka metsi a khethehileng, ho loketse haholoanyane bakeng sa litene tse phahameng tsa ho monya metsi.

Panel joint filler

1. Ho boloka metsi ka mokhoa o babatsehang, ho ka lelefatsang nako ea ho pholile le ho ntlafatsa katleho ea mosebetsi. Lubricity e phahameng e etsa hore kaho e be bobebe hape e be bonolo.

2. Ntlafatsa khanyetso ea shrinkage le ho hanyetsa mapheo, ntlafatsa boleng ba holim'a metsi.

3. Fana ka mokhoa o boreleli le o ts'oanang, 'me u etse hore bokaholimo bo tlamahane bo be matla.

sekhomaretsi sa lithaele

1. Etsa hore metsoako ea motsoako o omileng e be bonolo ho kopanya ntle le maqhubu, kahoo u boloke nako ea ho sebetsa. Le ho etsa hore mohaho o potlake hape o atlehe haholoanyane, o ka ntlafatsang ts'ebetso le ho fokotsa litšenyehelo.

2. Ka ho lelefatsa nako ea ho pholile, ho sebetsa hantle ha lithaele ho ntlafatsoa.

3. Fana ka phello e babatsehang ea ho khomarela, e nang le khanyetso e phahameng ea skid.

lintho tse bonahalang tsa fatše

1. Fana ka viscosity 'me e ka sebelisoa e le thuso e khahlanong le sedimentation.

2. Ntlafatsa mokelikeli le ho pompa, ka hona ho ntlafatsa bokhoni ba ho betla fatše.

3. Laola ho boloka metsi, kahoo ho fokotsa haholo ho phunyeha le ho fokotseha.

Lipente tse Thehiloeng ka Metsi le Lisebelisoa tsa Pente

1. Bophelo bo atolositsoeng ba shelofo ka ho thibela lintho tse tiileng ho thella. Ho lumellana ho babatsehang le likarolo tse ling le botsitso bo phahameng ba likokoana-hloko.

2. E qhibiliha ka potlako ntle le likhahla, e leng ho thusang ho nolofatsa mokhoa oa ho kopanya.

3. Hlahisa metsi a matle, ho kenyelletsa le ho fafatsa ho tlase le boemo bo botle, bo ka netefatsang ho qeta holimo holimo le ho thibela pente e otlolohileng.

4. Ntlafatsa viscosity ea ho tlosa pente e entsoeng ka metsi le ho tlosa pente ea motsoako oa lintho tse phelang, e le hore mochine o tlosang pente o se ke oa phalla ka ntle ho mosebetsi.

letlapa la konkreite le ntšitsoeng

1. Ntlafatsa machinability ea lihlahisoa tse extruded, ka matla a maqhama a phahameng le lubricity.

2. Ntlafatsa matla a metsi le ho khomarela lakane ka mor'a extrusion.