Mehaho ea ka ntle ea Insulation and Finishing Systems (EIFS) e phetha karolo ea bohlokoa ho fana ka tšireletso, ho thibela boemo ba leholimo le botle ba mehaho. Hydroxypropyl methylcellulose (HPMC) ke tlatsetso e sebelisoang hangata ho lirekere tsa EIFS ka lebaka la ho feto-fetoha ha eona, ho boloka metsi le bokhoni ba ho ntlafatsa ts'ebetso.
1. Kenyelletso ea seretse sa EIFS:
Seretse sa EIFS ke sesebelisoa se kopaneng se sebelisetsoang ho kenya le ho phethela lits'ebetso tsa kantle tsa marako.
Hangata e na le sekontiri sa samente, li-aggregates, likhoele, li-additives le metsi.
Seretse sa EIFS se ka sebelisoa e le setsi sa ho kopanya liphanele tsa ho kenya letsoho le joalo ka seaparo sa ka holimo ho ntlafatsa botle le ho thibela boemo ba leholimo.
2.Hydroxypropylmethylcellulose (HPMC):
HPMC ke cellulose ether e nkiloeng ho cellulose ea polima ea tlhaho.
E sebelisoa haholo ho thepa ea mohaho bakeng sa thepa ea eona ea ho boloka metsi, e teteaneng le e matlafatsang mosebetsi.
Ka liretse tsa EIFS, HPMC e sebetsa e le mofetoleli oa rheology, e ntlafatsa ho khomarela, ho kopana le ho hanyetsa ho sag.
3. Metsoako ea foromo:
a. Setlamo se thehiloeng ho samente:
Portland Cement: E fana ka matla le ho khomarela.
Samente e kopantsoeng (mohlala, samente ea mokoetla oa Portland): E eketsa nako e telele le ho fokotsa khabone.
b. Kakaretso:
Lehlabathe: Bophahamo le sebopeho sa kakaretso e ntle.
Li-aggregates tse bobebe (mohlala, perlite e atolositsoeng): Ntlafatsa thepa ea ho koala mocheso.
C. fiber:
Fiberglass e hananang le alkali: E matlafatsa matla a ho tiea le ho hanyetsa mapetso.
d. Keketso:
HPMC: ho boloka metsi, ho sebetsa, le ho hanyetsa ho fokotseha.
Air-entraining agent: Ntlafatsa khanyetso ea leqhoa.
Retarder: E laola ho beha nako maemong a leholimo a chesang.
Liphetoho tsa Polymer: Ntlafatsa ho tenyetseha le ho tšoarella.
e. Metsi: A bohlokoa bakeng sa hydration le ho sebetsa.
4. Litšobotsi tsa HPMC ho seretse sa EIFS:
a. Poloko ea Metsi: HPMC e monya le ho boloka metsi, e netefatsa hore metsi a na le nako e telele le ho ntlafatsa ts'ebetso.
b. Ho sebetsa: HPMC e fa seretse boreleli le botsitso, e nolofalletsa ho aha.
C. Anti-sag: HPMC e thusa ho thibela seretse ho thella kapa ho thella holim'a libaka tse otlolohileng, ho netefatsa botenya bo tšoanang.
d. Ho khomarela: HPMC e ntlafatsa ho khomarela pakeng tsa seretse le substrate, ho khothalletsa ho khomarela nako e telele le ho tšoarella.
e. Crack resistance: HPMC e ntlafatsa ho tenyetseha le matla a tlamahano ea seretse le ho fokotsa kotsi ea ho peperana.
5. Mokhoa oa ho kopanya:
a. Mokhoa oa pele ho metsi:
Koetlisa HPMC esale pele ka sejaneng se hloekileng se nang le hoo e ka bang 70-80% ea kakaretso ea metsi a tsoakiloeng.
Kopanya ka ho feletseng lisebelisoa tse omeletseng (samente, kakaretso, likhoele) ka motsoako.
Butle-butle eketsa tharollo ea HPMC e kentsoeng pele ha u ntse u hlohlelletsa ho fihlela ho finyelloa ho lumellana ho lakatsehang.
Fetola boemo ba metsi ka moo ho hlokahalang ho fihlela tšebetso e lakatsehang.
b. Mokhoa oa ho kopanya o omileng:
Motsoako o omileng oa HPMC le metsoako e omileng (samente, li-aggregates, likhoele) ka har'a motsoako.
Butle-butle eketsa metsi ha u ntse u hlohlelletsa ho fihlela ho finyelloa ho lumellana ho lakatsehang.
Kopanya ka botlalo ho netefatsa ho ajoa ha HPMC le lisebelisoa tse ling.
Teko ea Tšebelisano ea C.: Teko ea ho lumellana le HPMC le lisebelisoa tse ling ho netefatsa tšebelisano e nepahetseng le ts'ebetso.
6. Theknoloji ea ts'ebeliso:
a. Tokiso ea substrate: Etsa bonnete ba hore substrate e hloekile, e omme ebile ha e na litšila.
b. Kopo ea pele:
Etsa kopo ea EIFS Mortar Primer ho substrate u sebelisa trowel kapa thepa ea ho fafatsa.
Etsa bonnete ba hore botenya bo lekana 'me tšireletso e ntle, haholo-holo ho pota-potile likhutlo le likhutlo.
Kenya boto ea insulation ka har'a seretse se metsi 'me u lumelle nako e lekaneng ea ho fola.
C. Topcoat Kopo:
Tšela topcoat ea seretse sa EIFS holim'a primer e phekotsoeng u sebelisa trowel kapa thepa ea ho fafatsa.
Bokaholimo ba sebopeho kapa sephetho ka moo u batlang, ho ela hloko ho fihlela ho ts'oana le botle bo botle.
Phekola topcoat ho latela litlhahiso tsa moetsi ho e sireletsa maemong a leholimo a thata.
7. Taolo ea boleng le liteko:
a. Consistency: Lekola ho tsitsa ha seretse nakong eohle ea ho kopanya le ts'ebetso ea kopo ho netefatsa ho ts'oana.
b. Adhesion: Teko ea ho khomarela e etsoa ho lekola matla a maqhama pakeng tsa seretse le substrate.
C. Bokhoni ba ho sebetsa: Lekola bokhoni ba ho sebetsa ka tlhahlobo ea ho putlama le ho shebella nakong ea kaho.
d. Durability: Etsa tlhahlobo ea nako e telele, ho kenyelletsa le lipotoloho tsa leqhoa le ho thibela metsi, ho lekola ts'ebetso ea nako e telele.
Ho sebelisa HPMC ho etsa seretse sa EIFS ho fana ka melemo e mengata mabapi le ho sebetsa, ho khomarela, ho hanyetsa le ho tšoarella. Ka ho utloisisa thepa ea HPMC le ho latela mekhoa e nepahetseng ea ho kopanya le ho sebelisa, likonteraka li ka finyella lisebelisoa tsa boleng bo phahameng tsa EIFS tse finyellang litekanyetso tsa ts'ebetso le ho eketsa botle ba mohaho le nako e telele.
Nako ea poso: Feb-23-2024