Hydroxypropyl Methylcellulose (HPMC) e bapala karolo ea bohlokoa ho thehoeng le ho sebetsa ha putty powder, e sebelisoang haholo indastering ea kaho bakeng sa ho lokisa marako le ho lokisa holim'a metsi. Motsoako ona oa cellulose ether o tsebahala ka ho boloka metsi a phahameng, ho tsitsisa, le thepa ea ho sebetsa.
1. Selelekela ho HPMC
HPMC ke non-ionic cellulose ether e hlahisoang ka phetoho ea lik'hemik'hale ea selulose. Haholo-holo e sebelisoa e le motenya, emulsifier, filimi-pele, le stabilizer. Ho qhibiliha ha HPMC metsing le bokhoni ba eona ba ho etsa li-gel ho etsa hore e be molemo ka ho khetheha linthong tse fapaneng tsa kaho, ho kenyeletsoa phofo ea putty.
2. Mosebetsi oa HPMC ka Putty Powder
HPMC e ntlafatsa phofo ea putty ka ho fana ka thepa e 'maloa e molemo:
Ho boloka Metsi: HPMC e ka eketsa haholo matla a ho boloka metsi a putty powder, ho etsa bonnete ba hore mongobo o bolokiloe ka har'a motsoako ka nako e telele. Thepa ena e bohlokoa ho thibela ho omisoa pele ho nako le ho ntlafatsa ts'ebetso ea pholiso, e lebisang pheletsong e matla le e tšoarellang.
Ho sebetsa: Ho eketsoa ha HPMC ho ntlafatsa ho ata le ho nolofatsa ho sebelisoa ha putty powder. E fana ka botsitso bo boreleli bo etsang hore thepa e be bonolo ho sebetsana le ho e sebelisa, e leng se etsang hore ho be le bokaholimo bo lekanang.
Anti-Sagging: HPMC e thusa ho fokotsa ho fokotseha, e leng ho theoha ha putty tlas'a boima ba eona ka mor'a kopo. Thepa ena e bohlokoa haholo bakeng sa libaka tse otlolohileng le tse holimo moo matla a khoheli a ka etsang hore thepa e theohe.
Adhesion: HPMC e ntlafatsa thepa ea sekhomaretsi ea putty powder, ho netefatsa hore e khomarela hantle ho likaroloana tse fapaneng tse kang konkreite, samente le plasterboard.
Tlhahiso ea Filimi: E thusa ho theha filimi e sireletsang holim'a sebaka se sebelisitsoeng, se ka ntlafatsang ho tšoarella le ho hanyetsa maemo a tikoloho joalo ka ho fetoha ha mongobo le mocheso.
3. Mokhoa oa ho Etsa
Katleho ea HPMC ho putty powder e bakoa ke tšebelisano e ikhethang le metsi le likarolo tse tiileng tsa motsoako:
Hydration and Gelation: Ha e kopantsoe le metsi, HPMC e nosetsa ebe e etsa motsoako oa colloidal kapa gel. Tšebelisano ena e kang ea gel e fana ka viscosity e lakatsehang le ho sebetsa hantle.
Phokotso ea Khatello ea Bokahohle: HPMC e fokotsa tsitsipano ea metsi holim'a metsi, e thusang ho kolobisa le ho hasanya likaroloana tse tiileng ka katleho. Sena se lebisa ho motsoako o ts'oanang le ts'ebeliso e bonolo.
Tlamahano le Momahano: HPMC e sebetsa e le tlamahano, e matlafatsang momahano oa motsoako. Sena se eketsa matla a maqhama a ka hare a putty, ho fokotsa monyetla oa ho phatloha kapa ho arohana ka mor'a ho omisa.
4. Tekanyo le Kenyelletso
Tekanyo e nepahetseng ea HPMC ka li-putty powder formulations hangata e tloha ho 0.2% ho ea ho 0.5% ka boima ba 'mele, ho itšetlehile ka litlhoko tse khethehileng tsa kopo. Ts'ebetso ea ho kenyelletsa e kenyelletsa:
Ho kopanya ho omileng: HPMC e atisa ho eketsoa likarolong tse omeletseng tsa phofo ea putty 'me e kopane ka botlalo ho etsa bonnete ba hore kabo e tšoanang.
Motsoako oa Metsi: Nakong ea ho eketsoa ha metsi, HPMC e qala ho fana ka metsi le ho qhibiliha, e leng se tlatsetsang ho ts'ebetsong le ts'ebetsong e lakatsehang. Ho bohlokoa ho kopanya hantle ho thibela ho putlama le ho etsa bonnete ba kabo e lekanang.
5. Mehopolo ea Tlhahiso
Ha ho etsoa phofo ea putty le HPMC, lintlha tse 'maloa li tlameha ho nahanoa ho fihlela ts'ebetso e nepahetseng:
Boholo ba Particle: Boholo ba karoloana ea HPMC bo ka ama sebopeho sa ho qetela le boreleli ba putty. Likaroloana tse ntle li atisa ho fana ka qetello e boreleli, ha likaroloana tse mahoashe li ka tlatsetsa holim'a metsi a mangata.
Ho lumellana le Li-additives: HPMC e lokela ho lumellana le li-additives tse ling tse sebelisoang ha ho etsoa, tse kang li-filler, li-pigments le li-modifiers tse ling. Ho se lumellane ho ka lebisa litabeng tse kang karohano ea mekhahlelo kapa ho fokotsa ts'ebetso.
Maemo a Tikoloho: Ts'ebetso ea HPMC e ka susumetsoa ke maemo a tikoloho joalo ka mocheso le mongobo. Ho ka 'na ha hlokahala hore liforomo li lokisoe ka tsela e nepahetseng ho boloka botsitso le ts'ebetso tlas'a maemo a fapaneng.
6. Teko le Taolo ea Boleng
Ho netefatsa boleng le ho tsitsa ha HPMC ka putty powder ho kenyelletsa liteko tse matla le mehato ea ho laola boleng:
Teko ea Viscosity: Viscosity ea tharollo ea HPMC e lekoa ho netefatsa hore e kopana le litlhaloso tse hlokahalang. Sena se bohlokoa bakeng sa ho boloka botsitso le ts'ebetso e lakatsehang.
Teko ea ho Boloka Metsi: Thepa ea ho boloka metsi e hlahlojoa ho netefatsa hore putty e tla fola hantle le ho boloka mongobo bakeng sa ho khomarela le matla a nepahetseng.
Teko ea Sag Resistance: Liteko li etsoa ho lekola thepa ea anti-sagging ea putty ho netefatsa hore e boloka sebopeho le botenya kamora ts'ebeliso.
7. Likopo le Melemo ka har'a indasteri ea kaho:
Lebota la Lebota: E sebelisoa ho boreleli le ho lekanya mabota pele ho penta kapa ho sebelisa likhabiso tse khabisitsoeng. Lisebelisoa tse ntlafetseng tsa ho sebetsa le ho khomarela li tiisa boleng ba boleng bo phahameng.
Ho lokisa Crack: Thepa e momahaneng le e khomarelang ea HPMC e etsa hore phofo ea putty e be e loketseng ho tlatsa mapetsong le mefokolo e menyane ea bokaholimo, e fana ka pheletso e boreleli le e tšoarellang.
Skim Coating: Bakeng sa ho theha lesela le lesesaane, le boreleli holim'a mabota le siling, phofo e ntlafalitsoeng ea HPMC e fana ka tšireletso e ntle le pheletso e ntle.
8. Litlhahiso le Mekhoa ea Bokamoso
Nts'etsopele ea HPMC e ntse e tsoela pele ho fetoha ka tsoelo-pele ea theknoloji le liphetoho mekhoeng ea kaho:
Litlhophiso tsa Eco-Friendly: Ho na le tsepamiso e ntseng e eketseha ea ho nts'etsapele lintho tse nkiloeng ho HPMC tse baballang tikoloho, tse nang le mesi e tlase le tšusumetso e fokotsehileng tikolohong.
Ts'ebetso e Ntlafetseng: Litlhahiso li ikemiselitse ho ntlafatsa thepa ea ts'ebetso ea HPMC, joalo ka ntlafatso ea ho hanyetsa mocheso le linako tsa ho folisa ka potlako, ho fihlela litlhoko tsa mekhoa ea sejoale-joale ea kaho.
9. Qetello
Tšebeliso ea HPMC ho putty powder e fana ka mohlala oa ho feto-fetoha ha eona le katleho ea eona e le tlatsetso ea bohlokoa indastering ea kaho. Bokhoni ba eona ba ho ntlafatsa ho boloka metsi, ho sebetsa, ho thibela ho sisinyeha, le thepa ea ho khomarela ho etsa hore e be ea bohlokoa haholo bakeng sa ho fihlela likhakanyo tsa boleng bo holimo. Tsoelo-pele e tsoelang pele ho theknoloji ea HPMC e tšepisa ho tsoela pele ho ntlafatsa ts'ebetso le ts'ebetso ea putty powder, ho ikamahanya le litlhoko tse tsoelang pele tsa mekhoa ea kaho.
HPMC-modified putty powder e sebelisoa mefuteng e fapaneng
Nako ea poso: Jun-14-2024