Hydroxypropyl Methylcellulose (HPMC) ka Lisebelisoa tsa Kaho

Hydroxypropyl Methylcellulose (HPMC)ke kompone e nang le maemo a fapaneng e sebelisoang haholo liindastering tse fapaneng, e nang le boteng bo boholo lekaleng la kaho. Polymer ena ea maiketsetso e nkiloeng ho selulose e fumana lits'ebetso tse ngata ka lebaka la thepa ea eona e ikhethang, ho kenyeletsoa ho boloka metsi, matla a ho tiea le thepa ea sekhomaretsi. Sebakeng sa thepa ea kaho, HPMC e sebetsa e le tlatsetso ea bohlokoa e ntlafatsang ts'ebetso le ts'ebetso ea lihlahisoa tse fapaneng.

Ho utloisisa HPMC:

HPMC, e tsejoang hape e le hypromellose, ke polima e qhibilihang ka metsing e tsoang ho selulose ka phetoho ea lik'hemik'hale. Motsoako ona o kenyelletsa ho phekola cellulose ka propylene oxide le methyl chloride, e lebisang ho nkeleng lihlopha tsa hydroxyl sebaka ka lihlopha tsa hydroxypropyl le methyl. Ts'ebetso ena e ntlafatsa ho qhibiliha ha metsi a motsoako le ho fetola litšobotsi tsa eona tsa 'mele, ho etsa hore e tšoanelehe bakeng sa mefuta e mengata ea lisebelisoa.

Thepa ea HPMC:

HPMC e na le thepa e 'maloa e e etsang hore e be tlatsetso e ntle ea thepa ea kaho:

Poloko ea Metsi: HPMC e bonts'a thepa e ntle haholo ea ho boloka metsi, e etsa hore e be ea bohlokoa ho thepa ea kaho joalo ka seretse, li-renders le plaster. Bokhoni ba eona ba ho etsa sebopeho se kang gel ha se kopane le metsi se thusa ho thibela tahlehelo ea metsi ka potlako nakong ea kopo le ho folisa, ho netefatsa hore ho na le metsi a nepahetseng a lisebelisoa tsa samente.

Thickening: HPMC e sebetsa e le setei se sebetsang hantle sa ho tenya, se fanang ka viscosity ho tharollo le ho ntlafatsa ts'ebetso. Thepa ena e na le molemo ka ho khetheha ho li-adhesives tsa lithaele, li-grouts, le metsoako e kopanetsoeng, moo e matlafatsang ho tsitsisa, ho sebelisoa habonolo, le bokhoni ba ho khomarela libaka tse otlolohileng.

Tlhahiso ea Lifilimi: Ha e omisoa, HPMC e etsa filimi e bonaletsang le e tenyetsehang, e matlafatsang ho tšoarella le ho hanyetsa boemo ba leholimo ba liphahlo le li-sealants. Bokhoni bona ba ho etsa filimi bo bohlokoa bakeng sa ho sireletsa bokaholimo ho tsoa ho mongobo, mahlaseli a UV, le tšenyo ea mochini, ka hona ho lelefatsa nako ea bophelo ea thepa ea kaho.

Ho khomarela:HPMCe kenya letsoho ho matla a sekhomaretsi a lihlahisoa tse fapaneng tsa kaho, ho nolofatsa maqhama a betere lipakeng tsa li-substrates le ho matlafatsa botsitso ba sebopeho ka kakaretso. Likhomaretsing tsa lithaele le metsoako ea polasetere, e khothalletsa ho khomarela ka matla libakeng tse fapaneng, ho akarelletsa le konkreite, lehong le lirafshoa.

Botsitso ba Lik'hemik'hale: HPMC e bonts'a botsitso bo botle ba lik'hemik'hale, e boloka thepa ea eona ho feta mefuta e mengata ea pH le mocheso. Tšobotsi ena e netefatsa ts'ebetso ea nako e telele le ho tšoarella ha thepa ea kaho tlas'a maemo a fapaneng a tikoloho.

Tšebeliso ea HPMC ho Lisebelisoa tsa Kaho:

HPMC e fumana ts'ebeliso e atileng ha ho etsoa thepa e fapaneng ea kaho, e kenyang letsoho ts'ebetsong ea eona, ho tšoarella, le ho sebetsa:

Li-Mortars le Renders: HPMC hangata e kenyeletsoa ka har'a seretse se entsoeng ka samente 'me e fana ka ho ntlafatsa ts'ebetso, ho khomarela le ho boloka metsi. Ka ho thibela tahlehelo ea metsi ka potlako, e lumella nako e telele ea ho sebetsa le ho fokotsa kotsi ea ho phunyeha le ho fokotseha nakong ea ho phekola. Ntle le moo, HPMC e ntlafatsa momahano le botsitso ba lirekere, e netefatsa ts'ebeliso e ts'oanang le tlamahano e ntle ho li-substrates.

Likhomaretsi tsa Lithaele le Li-Grouts: Lits'ebetsong tsa ho kenya lithaele, HPMC e sebetsa e le karolo ea bohlokoa ea likhomaretsi le li-grouts. Ka li-adhesives, e fana ka thepa ea thixotropic, e nolofalletsang tšebeliso e bonolo le ho lokisoa ha lithaele ha e ntse e netefatsa ho khomarela ka matla ho li-substrates. Ka li-grouts, HPMC e ntlafatsa thepa ea phallo, e fokotsa menyetla ea ho ba le li-voids le ho ntlafatsa ponahalo ea ho qetela ea botle ba libaka tse nang le lithaele.

Li-plaster le li-Stuccos: HPMC e bapala karolo ea bohlokoa ho ntlafatsa ts'ebetso ea li-plaster le li-stuccos tse ka hare le tsa ka ntle. Ka ho ntlafatsa ho bolokoa ha metsi le ho sebetsa hantle, ho nolofatsa ts'ebeliso e bonolo, ho fokotsa ho phatloha, le ho matlafatsa maqhama pakeng tsa plaster le substrate. Ho feta moo, HPMC e thusa ho laola ho putlama le ho honyela, ho fellang ka sephetho se ts'oanang le se tšoarellang.

Exterior Insulation and Finish Systems (EIFS): EIFS e itšetlehile ka li-adhesives tse thehiloeng ho HPMC le li-basecoats ho kopanya liboto tsa ho kenya li-bond ho li-substrates le ho fana ka qetello e sireletsang ka ntle. HPMC e netefatsa ho koloba ka nepo ha bokaholimo, e ntlafatsa ho khomarela, 'me e kenya letsoho ho tenyetseheng le ho hanyetsa ha mapheo a liphahlo tsa EIFS, ka tsela eo e ntlafatsa ts'ebetso ea mocheso le ho hanyetsa boemo ba leholimo.

Li-Caulks le Li-Sealants: Li-caulks le li-sealants tse thehiloeng ho HPMC li sebelisoa haholo kahong bakeng sa ho tlatsa likheo, manonyeletso le mapetsong a likaroloana tse fapaneng. Lisebelisoa tsena li rua molemo ho tsoa ho HPMC ea ho boloka metsi, ho khomarela le ho etsa lifilimi, tse thusang ho theha litiiso tse tšoarellang le tse hanyetsanang le boemo ba leholimo, ho thibela ho kenella ha mongobo le moea.

dutla.

Lihlahisoa tsa Gypsum: Ka thepa ea kaho e thehiloeng ho gypsum joalo ka lipolasetere, metsoako e kopantsoeng, le li- underlays tse ikemetseng, HPMC e sebetsa joalo ka mofetoleli oa rheology le moemeli oa ho boloka metsi. E ntlafatsa ts'ebetso, e fokotsa ho fokotseha, 'me e matlafatsa maqhama pakeng tsa likaroloana tsa gypsum, e leng se etsang hore ho be bonolo ho qeta le ho fokotsa ho phunyeha.

Hydroxypropyl Methylcellulose (HPMC)e bapala karolo ea bohlokoa indastering ea kaho, e sebetsa joalo ka tlatsetso e sebetsang linthong tse fapaneng le lits'ebetsong. Motsoako oa eona o ikhethang oa thepa, ho kenyeletsoa ho boloka metsi, ho teteana, ho khomarela, le sebopeho sa filimi, ho matlafatsa ts'ebetso, ho tšoarella le ho sebetsa ha lihlahisoa tsa kaho ho tloha ho lirekere le ho fana ka likhomaretsi le li-sealants. Ha lekala la kaho le ntse le tsoela pele ho fetoha, HPMC e lebelletsoe ho lula e le karolo ea mantlha, e tsamaisang boqapi le ho ntlafatsa boleng ba tikoloho e hahiloeng lefatšeng ka bophara.