Hydroxypropyl methylcellulose (HPMC) ke polymer e sebetsang ka bongata e sebelisoang haholo liindastering tse fapaneng ho kenyeletsoa kaho.Lits'ebetsong tsa gypsum, HPMC e sebetsa e le tlatsetso ea bohlokoa e nang le mefuta e mengata ea melemo e thusang ho ntlafatsa ts'ebetso le boleng ba gypsum formulations.
Kenyelletso ea hydroxypropyl methylcellulose:
Hydroxypropyl methylcellulose ke semi-synthetic polymer e nkiloeng ho selulose, polima ea tlhaho e fumanoang limela.HPMC e entsoe ka ho phekola cellulose ka propylene oxide le methyl chloride, e hlahisang metsoako e nang le thepa e ntlafetseng ha e bapisoa le cellulose ea motsoali.Tekanyo ea ho kenya sebaka (DS) ea lihlopha tsa hydroxypropyl le methoxy mokokotlong oa cellulose e etsa qeto ea hore na HPMC ke efe.
Likarolo tsa HPMC:
Ho boloka metsi:
HPMC e na le thepa e babatsehang ea ho boloka metsi 'me e ka etsa filimi e tšesaane holim'a gypsum ho fokotsa mouoane oa metsi.Sena se bohlokoa ho fihlela maemo a nepahetseng a pheko le ho thibela ho omisoa pele ho nako ea stucco.
Matla a ntlafetseng:
Ho eketsoa ha HPMC ho matlafatsa ts'ebetso ea samente, ho etsa hore ho be bonolo ho kopanya, ho sebelisa le ho hasana.Ho tsitsa ho ntlafetseng ho thusa ho fana ka ho khomarela hantle le ho koahela libaka tse fapaneng.
Nako ea ho beha e laoloang:
HPMC e lumella taolo e kholo holim'a nako ea ho beha samente.Ka ho lokisa litaba tsa HPMC, bahlahisi ba ka hlophisa linako tse behiloeng ho fihlela litlhoko tse ikhethileng tsa projeke, ba netefatsa ts'ebeliso e nepahetseng le ho qeta.
Eketsa lihora tsa ho bula:
Nako ea ho bula ke nako eo plaster e lulang e sebetsa pele e beha.HPMC e ekelitse lihora tsa eona tsa ho bula ho fa litsebi tsa mesebetsi ea matsoho le basebetsi nako e khathollang haholoanyane ea ho etsa kopo le ho phethela mesebetsi.
Ntlafatsa ho khomarela:
Thepa ea ho etsa filimi ea HPMC e thusa ho ntlafatsa maqhama pakeng tsa samente le substrate.Sena ke sa bohlokoa ka ho khetheha ho etsa bonnete ba ho phela nako e telele le ho tšoarella ha libaka tse pentiloeng.
Crack resistance:
HPMC thusa fokotsa monyetla oa ho mapetsong a samente ka ho eketsa ho tenyetseha le matla a eona.Sena ke sa bohlokoa ho boloka botsitso ba sebopeho sa sebaka se pota-potiloeng ka nako e telele.
Rheology e ntlafalitsoeng:
Rheology e bolela mokhoa oa ho phalla le ho senyeha ha thepa.HPMC e ka fetola thepa ea rheological ea gypsum, ea e fa botsitso bo lakatsehang bakeng sa ts'ebeliso e bonolo le boemo.
Tšebeliso ea HPMC ho gypsum:
Gypsum plaster:
Ka gypsum formulations, HPMC e atisa ho sebelisoa ho ntlafatsa ho boloka metsi, ho sebetsa le ho khomarela.E boetse e thusa ho laola nako ea ho beha le ho ntlafatsa ts'ebetso ea kakaretso ea stucco e thehiloeng ho gypsum.
Plastering e entsoeng ka samente:
HPMC e sebelisoa haholo ho li-plaster tse thehiloeng ho samente moo e leng tlatsetso ea bohlokoa ho finyella rheology e hlokahalang, nako e bulehileng le ho khomarela.Linako tse behiloeng tse laoloang li molemo ka ho khetheha mererong e meholo ea kaho.
Sekhahla sa lime:
Metsoako ea samente ea lime e rua molemo ka ho eketsoa ha HPMC ho ntlafatsa ho boloka metsi le ho sebetsa.Ho lumellana ha polymer le lisebelisoa tse entsoeng ka lime ho etsa hore e be khetho e nepahetseng bakeng sa merero ea lefa le tsosoloso.
Litsamaiso tsa Kantle tsa Insulation le Finishing (EIFS):
HPMC ke karolo ea bohlokoa ea likopo tsa EIFS, e thusang ho ntlafatsa ho khomarela, ho tenyetseha le ho hanyetsa mapheo.Lintho tsa eona tsa ho boloka metsi li bohlokoa haholo lits'ebetsong tsa kantle tsa stucco.
ha re phethela:
Hydroxypropyl methylcellulose ke tlatsetso e phethahetseng mefuteng ea gypsum ka lebaka la tlatsetso ea eona e mengata ea ho boloka metsi, ho sebetsa hantle, ho beha taolo ea nako, ho khomarela le ho hanyetsa crack.Ebang e sebelisoa ho samente, samente, kalaka kapa lisebelisoa tsa ka ntle tsa marako, HPMC e bapala karolo ea bohlokoa ho ntlafatseng tshebetso le boleng ba plaster.Ha mekhoa ea kaho e ntse e tsoela pele ho fetoha, ho tenyetseha le ho ts'epahala ha HPMC ho entse hore e be karolo ea bohlokoa ea libopeho tsa sejoale-joale tsa samente, e netefatsang bophelo bo bolelele le katleho mererong e fapaneng ea kaho.
Nako ea poso: Nov-28-2023