Li-putty powders li sebelisoa haholo mererong ea kaho le nchafatso bakeng sa ho lokisa mapetsong, masoba a tlatsang, le libaka tse boreleli.Li-cellulose ethers li atisa ho sebelisoa e le li-binders ka li-putty powders ka lebaka la bokhoni ba tsona ba ho ntlafatsa ts'ebetso, ho khomarela le ho boloka metsi.Leha ho le joalo, ho khetha li-ether tsa cellulose tse nepahetseng bakeng sa li-putty powders ho ka ba phephetso ka lebaka la mefuta e mengata ea likhetho tse fumanehang 'marakeng.Sehloohong sena, re tla tšohla mokhoa oa ho khetha li-cellulose ethers tse nepahetseng bakeng sa li-putty powders.

Cellulose Ethers ke eng?

Li-cellulose ethers ke lelapa la li-polymers tse nkiloeng ho selulose, e leng polima ea tlhaho e fumanoang limela.Li qhibiliha ka metsing 'me li na le thepa e babatsehang ea ho etsa lifilimi, e leng se etsang hore e be li-binders tse loketseng bakeng sa li-putty powders.Ho na le mefuta e 'maloa ea li-cellulose ethers tse fumanehang, e' ngoe le e 'ngoe e na le thepa le melemo ea eona e ikhethang.

Mefuta ea Cellulose Ethers

1. Methyl Cellulose (MC)

Methyl cellulose ke ether e seng ea ionic cellulose e sebelisoang haholo ka li-putty powders ka lebaka la thepa ea eona e babatsehang ea ho boloka metsi.E ka ntlafatsa ho sebetsa ha li-putty powders, ho etsa hore ho be bonolo ho li sebelisa le ho hasana.Methyl cellulose e boetse e hanana le kholo ea baktheria, e etsa hore e be e loketseng ho sebelisoa libakeng tse mongobo.

2. Hydroxypropyl Methyl Cellulose (HPMC)

Hydroxypropyl methyl cellulose ke ether e fetotsoeng ea cellulose e atisang ho sebelisoa ka li-putty powders ka lebaka la thepa ea eona e babatsehang ea ho khomarela.E ka boela ea ntlafatsa ho boloka metsi le ho sebetsa ha li-putty powders, ho etsa hore ho be bonolo ho li sebelisa le ho hasana.HPMC e boetse e hanyetsana le kholo ea baktheria 'me e na le botsitso bo botle ba mocheso.

3. Hydroxyethyl Cellulose (HEC)

Hydroxyethyl cellulose ke non-ionic cellulose ether e atisang ho sebelisoa ka li-putty powders ka lebaka la thepa ea eona e babatsehang ea ho teteaneng.E ka boela ea ntlafatsa ho boloka metsi le ho sebetsa ha li-putty powders, ho etsa hore ho be bonolo ho li sebelisa le ho hasana.HEC e boetse e hanyetsana le kholo ea baktheria 'me e na le botsitso bo botle ba mocheso.

4. Carboxymethyl Cellulose (CMC)

Carboxymethyl cellulose ke ether e fetotsoeng ea cellulose e atisang ho sebelisoa ka li-putty powders ka lebaka la thepa ea eona e ntle ea ho boloka metsi.E ka boela ea ntlafatsa ho sebetsa ha li-putty powders, ho etsa hore ho be bonolo ho li sebelisa le ho hasana.CMC e boetse e hanana le kholo ea baktheria mme e na le botsitso bo botle ba mocheso.

Ho Khetha Cellulose Ethers e Nepahetseng bakeng sa Powder ea Putty

Ha u khetha li-ether tsa cellulose tse nepahetseng bakeng sa li-putty powders, ho na le lintlha tse 'maloa tseo u lokelang ho li nahana.Tsena li kenyelletsa:

1. Mokhoa oa Kopo

Mokhoa oa kopo oo u tla o sebelisa bakeng sa putty powder o tla khetholla mofuta oa cellulose ether eo u lokelang ho e sebelisa.Ka mohlala, haeba u tla be u fafatsa phofo ea putty, joale u lokela ho sebelisa cellulose ether e nang le thepa e babatsehang ea ho boloka metsi, e kang methyl cellulose.Haeba u tla be u phunya phofo ea putty, joale u lokela ho sebelisa ether ea cellulose e nang le thepa e ntle ea ho khomarela, e kang HPMC.

2. Mofuta oa Substrate

Mofuta oa substrate oo u tla be u sebelisa putty powder ho oona o tla boela o khetholle mofuta oa cellulose ether eo u lokelang ho e sebelisa.Ka mohlala, haeba u tla be u sebelisa phofo ea putty sebakeng sa porous, joalo ka konkreite kapa samente, joale u lokela ho sebelisa cellulose ether e nang le thepa e ntle ea ho boloka metsi, e kang methyl cellulose.Haeba u tla be u sebelisa phofo ea putty ho substrate e se nang porous, e kang tšepe kapa khalase, joale u lokela ho sebelisa cellulose ether e nang le thepa e ntle ea ho khomarela, e kang HPMC.

3. Thepa e Lakatsehang

Thepa e lakatsehang ea putty powder e tla boela e khetholle mofuta oa cellulose ether eo u lokelang ho e sebelisa.Ka mohlala, haeba u batla hore phofo ea putty e be le mekhoa e metle ea ho boloka metsi, joale u lokela ho sebelisa cellulose ether e nang le thepa e ntle ea ho boloka metsi, e kang methyl cellulose.Haeba u batla hore phofo ea putty e be le thepa e ntle ea ho khomarela, joale u lokela ho sebelisa ether ea cellulose e nang le thepa e ntle ea ho khomarela, e kang HPMC.

4. Maemo a Tikoloho

Maemo a tikoloho eo ho tla sebelisoa phofo ea putty e tla boela e khetholle mofuta oa cellulose ether eo u lokelang ho e sebelisa.Ka mohlala, haeba phofo ea putty e tla sebelisoa sebakeng se mongobo, joale u lokela ho sebelisa ether ea cellulose e hanyetsanang le kholo ea baktheria, e kang methyl cellulose kapa HPMC.Haeba phofo ea putty e tla sebelisoa sebakeng se chesang, joale u lokela ho sebelisa ether ea cellulose e nang le botsitso bo botle ba mocheso, joalo ka HEC kapa CMC.

Qetello

Ho khetha li-ether tse nepahetseng tsa cellulose bakeng sa li-putty powders ho bohlokoa ho fihlela thepa e lakatsehang le ts'ebetso ea sehlahisoa.Ha u khetha ether ea cellulose e nepahetseng, u lokela ho nahana ka lintlha tse kang mokhoa oa kopo, mofuta oa substrate, thepa e lakatsehang le maemo a tikoloho.Ka ho khetha ether ea cellulose e loketseng, o ka etsa bonnete ba hore phofo ea putty ea hau e na le ts'ebetso e ntle haholo, e khomarelang, le thepa ea ho boloka metsi, e etsa hore e be se loketseng bakeng sa ho lokisa mapetsong, masoba a ho tlatsa, le libaka tse boreleli mererong ea kaho le ntlafatso.