Selelekela:
Sebakeng sa kaho, seretse se phetha karolo ea bohlokoa, se sebetsa e le se tlamang thepa e fapaneng ea ho haha. Meetso ea seretse e fetohile haholo ha nako e ntse e feta, e kopanya litlatsetso ho ntlafatsa ts'ebetso le ho rarolla mathata a itseng. E 'ngoe ea tlatsetso e joalo, Hydroxypropyl Methylcellulose (HPMC), e tumme ka tlatsetso ea eona e nang le likarolo tse ngata molemong oa sebopeho sa seretse. Patlisiso ena e felletseng e shebana le thepa, tšebetso, le ts'ebeliso ea HPMC ho samente ea seretse sa kaho, e hlakisa bohlokoa ba eona mekhoeng ea sejoale-joale ea kaho.
Ho utloisisa Hydroxypropyl Methylcellulose (HPMC):
Hydroxypropyl Methylcellulose, derivative ea cellulose ether, e hlaha e le karolo ea bohlokoa mekhoeng ea ho haha samente ea seretse ka lebaka la thepa ea eona e ikhethang. E tsoa ho selulose, HPMC e etsa liphetoho tsa lik'hemik'hale ho fana ka litšoaneleho tse lakatsehang tse kang ho boloka metsi, bokhoni bo matla, le ts'ebetso e ntlafetseng. Sebopeho sa eona sa limolek'hule se na le lihlopha tsa hydroxypropyl le methoxyl, tse thusang ho sebelisana le limolek'hule tsa metsi le lisebelisoa tsa samente.
Thepa le Mesebetsi ea HPMC ka Seretse sa Kaho:
Poloko ea Metsi: HPMC e bonts'a bokhoni bo ikhethang ba ho boloka metsi, bo bohlokoa bakeng sa ho ts'ehetsa ts'ebetso ea hydration ka seretse. Ka ho etsa filimi e tšesaane ho pota-potile likaroloana tsa samente, e fokotsa tahlehelo ea metsi ka ho fetoha mouoane, ho netefatsa hore metsi a lekaneng le ho matlafatsa matla le ho tšoarella ha samente.
Phetoho ea Rheology: Ho eketsoa ha HPMC ho susumetsa thepa ea rheological ea seretse, ho fana ka boitšoaro ba thixotropic bo ntlafatsang ts'ebeliso le ts'ebetso. E laola viscosity, e thibela ho thella kapa ho thella nakong ea ts'ebeliso e otlolohileng, ka hona e nolofalletsa ts'ebetso ea plaster e bonolo.
Ntlafatso ea Khomarelo: HPMC e khothalletsa ho khomarela pakeng tsa seretse le libaka tsa substrate, ho matlafatsa maqhama a matla a sefahleho. Tšobotsi ena e molemo haholo ha ho etsoa lits'ebetso, moo ho khomarela li-substrates tse fapaneng ho leng bohlokoa bakeng sa ho fihlela liphetho tse tšoanang le tse tšoarellang.
Crack Resistance: Ho kenyeletsoa ha HPMC ho kenya letsoho phokotsong ea ho honyela ha seretse sa samente. Ka ho laola mouoane oa mongobo le ho matlafatsa momahano, e fokotsa ho hlaha ha mapetsong a holim'a metsi, kahoo e eketsa boipiletso bo botle le botšepehi ba sebopeho sa libaka tse felileng.
Likopo tsa HPMC ho Plaster ea Seretse sa Kaho:
Phetolelo ea Kantle: Meetso ea seretse e ntlafalitsoeng ke HPMC e fumana ts'ebeliso e atileng phetolelong ea kantle, moo ho hanyetsanang le maemo a leholimo le ho tšoarella ho leng bohlokoa. Thepa e phahameng ea ho boloka metsi ea HPMC e netefatsa hore ho na le metsi a nako e telele, ho etsa hore ho thehoe liphahlo tse thata tse khonang ho mamella maemo a thata a tikoloho.
Ho Plastering ka Hare: Lits'ebetsong tsa plastering tsa kahare, HPMC e thusa ho fihlella liphetho tse boreleli, tse nang le bofokoli bo fokolang. Litlamorao tsa eona tsa ho fetola rheology li thusa taolo e nepahetseng holim'a ho tsitsa ha seretse, ho nolofatsa ts'ebeliso e sa sebetseng le ho phethela, ka hona e ntlafatsa boipiletso ba libaka tse kahare.
Tokiso ea Seretse: HPMC e bapala karolo ea bohlokoa ho thehoeng ha seretse sa tokiso se sebelisetsoang mesebetsi ea tokiso holim'a konkreite e senyehileng kapa likaroloana tsa masonry. Ka ho matlafatsa matla a bonto le khanyetso ea crack, e thusa ho khutlisa botšepehi ba sebopeho ha e ntse e netefatsa hore e tsamaellana le thepa ea moaho e teng.
Likhomaretsi tsa Lithaele le Li-Grouts: Ntle le lits'ebetso tsa plastering, HPMC e fumana thuso ho likhomaretsi tsa lithaele le li-grouts, moo e fanang ka thepa ea bohlokoa joalo ka ho boloka metsi, ho khomarela le ho sebetsa. Ho lumellana ha eona le li-additives le li-filler tse fapaneng ho ntlafatsa ts'ebetso le ho feto-fetoha ha mekhoa ea ho kenya lithaele.
Mathata le Litlhokomelo:
Le ha HPMC e fana ka melemo e mengata ho meralo ea samente ea seretse, liphephetso tse ling le menahano e hloka tlhokomelo. Phapang ea boleng ba thepa e tala, litekanyetso, le maemo a tikoloho a ka ama ts'ebetso ea lirekere tse thehiloeng ho HPMC, e leng se hlokang taolo e hlokolosi ea boleng le ntlafatso ea tlhahiso. Ho feta moo, ho tsamaellana le li-additives le li-admixtures tse ling li tlameha ho hlahlojoa ka hloko ho netefatsa litlamorao tsa synergistic le ho qoba litšebelisano tse mpe tse ka senyang ts'ebetso ea seretse.
Hydroxypropyl Methylcellulose (HPMC) e hlaha e le tlatsetso e feto-fetohang mekhoeng ea samente ea seretse sa kaho, e fanang ka melemo e mengata ho tloha ho ts'ebetso e ntlafalitsoeng le ho khomarela ho ntlafala ho tšoarella le ho hanyetsa crack. Mehaho ea eona e ikhethang e etsa hore e be ea bohlokoa mekhoeng ea sejoale-joale ea kaho, e thusa ho phethahala ha meaho e nang le molumo oa sebopeho, e khahlisang ka bokhabane le e tšoarellang nako e telele. Ha indasteri ea kaho e ntse e tsoela pele ho fetoha, HPMC e mothating oa ho lula e le tlatsetso ea lejoe la sekhutlo, e tsamaisang boqapi le bokhabane ho mahlale a seretse.
Nako ea poso: May-22-2024