Tšebeliso ea HPMC ka samente ke efe

Hydroxypropyl Methylcellulose (HPMC)ke tlatsetso e ka sehloohong ea thepa e thehiloeng ho samente, e fanang ka mefuta e mengata ea melemo e tlohang ho ntlafatsa bokhoni ba ho sebetsa ho ea ho ho ntlafatsa ts'ebetso le ho tšoarella. Tšebeliso ea eona indastering ea kaho e se e atile haholo ka lebaka la thepa ea eona e fapaneng.

Matla a Ntlafetseng:
HPMC e sebetsa e le karolo ea bohlokoa metsoakong e thehiloeng ho samente ka ho ntlafatsa haholo ts'ebetso. E sebetsa e le moemeli oa ho boloka metsi, e lelefatsa ts'ebetso ea hydration le ho lumella ho hasana hantle ha likaroloana tsa samente. Sena se etsa hore ho be le botsitso bo bonolo, ho nolofaletsa ts'ebeliso e bonolo le sebopeho sa thepa. Ho feta moo, HPMC e thusa ho thibela karohano le ho tsoa mali, ho etsa bonnete ba ho lumellana ho pholletsa le motsoako.

Paballo ea Metsi:
E 'ngoe ea mesebetsi ea mantlha ea HPMC ka samente ke bokhoni ba eona ba ho boloka metsi. Ka ho etsa filimi ho potoloha likaroloana tsa samente, e thibela tahlehelo ea mongobo nakong ea ho folisa. hydration ena ea nako e telele e khothalletsa karabelo e nepahetseng ea cementitious, e lebisang ntlafatsong e ntlafalitsoeng ea matla le ho tšoarella ho matla ha sehlahisoa sa ho qetela. Ho feta moo, ho boloka maemo a mongobo a lekaneng ho bohlokoa bakeng sa ho fokotsa ho honyela le ho petsoha, haholo lits'ebetsong tse kang ho lipola le ho fana.

Ntlafatso ea ho khomarela:
HPMC e kenya letsoho kholisong e matlafalitsoeng lipakeng tsa thepa e thehiloeng ho samente le li-substrates. Thepa ea eona ea ho etsa lifilimi e theha maqhama pakeng tsa sebaka se sebelisitsoeng le substrate, e khothalletsang ho khomarela hantle le ho fokotsa kotsi ea delamination kapa detachment ka nako. Sena se molemo ka ho khetheha ho li-adhesives tsa lithaele, li-mortars, le li-renders, moo ho khomarela ka matla ho hlokahalang bakeng sa ts'ebetso ea nako e telele.

Taolo ea ho tsitsa:
Keketso ea HPMC e etsa hore ho be le taolo e nepahetseng holim'a botsitso ba metsoako ea cementitious. Ka ho fetola litekanyetso tsa HPMC, likonteraka li ka fetola sebopeho sa viscosity le phallo ea motsoako ho latela litlhoko tse ikhethang tsa projeke. Mokhoa ona oa ho ikamahanya le maemo o lumella ho etsoa ha litharollo tse ikhethileng tse loketseng lits'ebetso tse fapaneng, ho tloha ho metsoako e ikemetseng ho isa ho metsoako ea seretse se teteaneng.

Rheology e Ntlafetseng:
Rheology e bapala karolo ea bohlokoa ho khetholla boitšoaro ba ho phalla le ho sebetsa ha thepa e thehiloeng ho samente. HPMC e sebetsa joalo ka rheology modifier, e susumetsang viscosity le thepa ea phallo ea motsoako. Sena se fella ka momahano o ntlafetseng le ho hanyetsa ho sag, haholo-holo lits'ebetsong tse otlolohileng tse kang likhomaretsi tsa lithaele le metsoako ea ho lipola. Ho feta moo, rheology e ntlafalitsoeng e netefatsa ts'ebetso e ntle le ts'ebeliso e ntle, e lebisang tlhahisong e ntlafalitsoeng sebakeng sa marang-rang.

Ho hanyetsana le Crack le ho tšoarella:
HPMC e thusa ho matlafatsa ho tšoarella ha meaho e thehiloeng ho samente ka ho ntlafatsa khanyetso ea mapetso le ho fokotsa ho kenella. Lintho tsa eona tsa ho boloka metsi li kenya letsoho ho li-microstructures tse teteaneng, ho fokotsa ho kenella ha mongobo le lisebelisoa tse mabifi tse kang chloride le sulfate. Sena, ka lehlakoreng le leng, se matlafatsa ts'ebetso ea nako e telele le bophelo ba ts'ebeletso ea likarolo tsa kaho, se etsa hore li se ke tsa hlola li loantšana le boemo ba leholimo, tlhaselo ea lik'hemik'hale, le ho senyeha ha sebopeho.

Ho lumellana le Additives:
HPMC e bonts'a tšebelisano e ntle haholo le mefuta e mengata e fapaneng ea li-additives tse sebelisoang hangata mefuteng ea cementitious. Ebang e kenyelletsa lisebelisoa tsa pozzolanic, li-superplasticizers, kapa li-air-entraining agents, HPMC e sebetsa e le matrix e lumellanang e thusang ho hasana ho tšoanang le ho sebelisana ha li-additives tse fapaneng. Khokahano ena e ntlafatsa ts'ebetso le ts'ebetso e akaretsang ea lits'ebetso tse thehiloeng ho samente, e lumellang litlamorao tsa synergistic tse ntlafatsang thepa ea thepa.

Mehopolo ea Tikoloho:
Ntle le melemo ea eona ea tekheniki, HPMC e fana ka melemo ea tikoloho lits'ebetsong tsa samente. Joaloka polymer e ka senyehang le e seng chefo e nkiloeng mehloling ea selulose e nchafalitsoeng, e lumellana le lipakane tsa ts'ebetso indastering ea kaho. Ho feta moo, ka ho ntlafatsa ts'ebetso le ts'ebetso ea thepa e thehiloeng ho samente, HPMC e kenya letsoho ho fokotsa tšenyo ea thepa le tšebeliso ea matla nakong ea ts'ebetso ea kaho, ho ntlafatsa le ho feta lintlha tsa eona tsa tikoloho.

Hydroxypropyl Methylcellulose (HPMC) e bapala karolo e ngata ho ntlafatsa thepa le ts'ebetso ea thepa e thehiloeng ho samente. Ho tloha ho ntlafatsa bokhoni ba ho sebetsa le ho khomarela ho matlafatsa ho tšoarella le ho hanyetsa crack, litšoaneleho tsa eona tse feto-fetohang li e etsa tlatsetso ea bohlokoa lits'ebetsong tse fapaneng tsa kaho. Ha ts'ebetso le ts'ebetso e ntse e tsoela pele ho ba lintho tse tlang pele indastering ea kaho, tlhoko ea HPMC e lebelletsoe ho nyoloha, e tsamaisang boqapi le tsoelopele ho mahlale a samente.