I-Redispersible Polymer Powder (RDP) i-polymer powder engaphinde ihlakazwe emanzini ukuze yakhe i-emulsion ezinzile. Ivame ukusetshenziswa ezintweni ezisekelwe kusimende ezifana ne-dry-mix mortar. Izingxenye zayo eziyinhloko ngokuvamile i-ethylene-vinyl acetate copolymer (EVA), i-styrene-acrylate copolymer, njll. Ngenxa yokuthi i-latex powder ehlakazeka kabusha inokuhlakazeka okuhle, ukunamathela kanye nezakhiwo zefilimu, idlala indima ebaluleke kakhulu ezinhlelweni ezisekelwe usimende. Ikakhulukazi njenge-adhesive, ukuthuthukiswa kwayo okunezici eziningi kuthuthukisa kakhulu izinhlelo ezisekelwe kusimende. Ukusebenza okubalulekile nokuqina.
1. Thuthukisa ukunamathela
Ukunamathela kwezinto ezisekelwe kusimende kuyindaba eyinhloko ekwakhiweni, futhi ikhono lokubopha izinto ezisekelwe kusimende libuthakathaka. Ikakhulukazi uma isetshenziswa kuma-substrates ahlukene, izinkinga ezinjengokuchitha nokuqhekeka ngokuvamile zibangelwa kalula. I-latex powder e-redispersible isetshenziswa njenge-binder ezinhlelweni ezisekelwe kusimende, futhi umphumela wayo obaluleke kakhulu uwukuthuthukisa kakhulu amandla okubopha.
Ngemuva kokuthi impushana ye-latex ehlakazeka kabusha ixutshwe nodaka lukasimende emanzini, ingakha ifilimu ye-polymer eqhubekayo enezinhlayiya ezintweni ezisekelwe kusimende. Lolu hlobo lwefilimu alugcini nje ngokuba nokunamathela okuhle kakhulu, kodwa futhi lungathuthukisa umphumela wokuxhumanisa ngomshini phakathi kwezinto eziyisisekelo nosimende, lwandise amandla esixhumi esibonakalayo, ngaleyo ndlela luthuthukise amandla okubopha phakathi kwezinto ezisekelwe kusimende nezinto eziyisisekelo ezihlukahlukene. Ingakwazi ukuxazulula ngokuphumelelayo inkinga yokuhlanganisa izinto zendabuko ezisekelwe kusimende kanye nama-substrates abushelelezi noma aphansi abamba amanzi (njengamathayili e-ceramic, ingilazi, njll.).
2. Thuthukisa ukuguquguquka nokumelana nokuqhekeka
Ngemuva kokuba izinto ezisekelwe ku-cement zibe lukhuni, zivame ukuthambekela ekuqhekekeni ngenxa ye-brittleness yazo ephakeme, ikakhulukazi ngaphansi kwethonya lokushintsha kwezinga lokushisa namandla angaphandle. Ukwenzeka kokuqhekeka kuba sobala kakhulu. Ifilimu eyakhiwe ingxenye ye-polymer ku-latex powder e-redispersible ngemuva kokuqina inokuguquguquka okuhle, ingahlakaza ukucindezeleka futhi inciphise umonakalo wezinto ezibonakalayo ngamandla angaphandle, ngaleyo ndlela ithuthukise ukuguquguquka nokumelana nokuqhekeka kwezinto ezisekelwe ku-cement.
Ngemuva kokuthi inani elithile le-latex powder elihlakazeka kabusha lixubene nezinto ezisekelwe kusimende, ukuqina kwento kuthuthukiswa kakhulu, okungadlala indima yokuphazamisa ezindaweni zokugxilisa ukucindezeleka futhi kunciphise ukuvela kwemifantu. Lokhu kubaluleke kakhulu ezintweni ezidinga ukumelana nokuguquka kwangaphandle (njengamasistimu okufakwa odongeni angaphandle, izinto eziguquguqukayo ezingangeni manzi, njll.).
3. Thuthukisa ukumelana kwamanzi kanye nesimo sezulu
Izinto ezisekelwe kusimende zivame ukuthambekela ekugelezeni kwamanzi noma ukonakala kokusebenza lapho zivezwe emanzini noma kumswakama isikhathi eside. Izinto zendabuko ezisekelwe kusimende zinezinga eliphezulu lokumunca amanzi, futhi amandla azo ancipha kakhulu, ikakhulukazi ngemva kokucwiliswa isikhathi eside. I-latex powder e-redispersible ingathuthukisa ukumelana kwamanzi kwezinto ezisekelwe kusimende, ikakhulukazi ngenxa yokuthi ifilimu ye-polymer eyakhayo ngemva kokwelapha i-hydrophobic, engavimbela ngokuphumelelayo ukungena kwamanzi futhi inciphise ukumuncwa kwamanzi.
Ukwakhiwa kwefilimu ye-polymer kungavimbela ngokuphumelelayo ukuhwamuka kwamanzi ngaphakathi kwezinto ezisekelwe ku-cement futhi kugweme izinkinga zokunciphisa kanye nokuqhekeka okubangelwa ukulahlekelwa kwamanzi ngokushesha phakathi nenqubo yokomisa. Lokhu kwenza futhi impushana ye-latex ehlakazeka kabusha idlale indima ebalulekile ekuthuthukiseni ukumelana nesimo sezulu kanye nokumelana neqhwa nokuncibilika kwezinto ezisekelwe kusimende, ngaleyo ndlela kwandiswe ukuphila kwesevisi yezinto ezisetshenziswayo.
4. Thuthukisa ukusebenza komsebenzi wokwakha
I-latex powder e-redispersible ayikwazi nje ukuthuthukisa ngokuphawulekayo izakhiwo ezibonakalayo zezinto ezisekelwe kusimende, kodwa futhi ithuthukise kakhulu ukusebenza kokwakhiwa. Ngemva kokufaka i-latex powder, ukusebenza kahle, ukugcinwa kwamanzi kanye noketshezi lwezinto ezisekelwe kusimende kuthuthukiswa kakhulu. I-latex powder e-redispersible ingakhuphula i-lubricity ye-cement mortar, okwenza kube lula ukuyisebenzisa nokusabalalisa, ngaleyo ndlela kunciphise ubunzima namaphutha ekwakheni nasekuthuthukiseni ukusebenza kahle komsebenzi.
Ama-polymers ku-latex powder angaphinde athuthukise ukugcinwa kwamanzi kwezinto ezisekelwe kusimende, anciphise isimo sokopha kwezinto ezibonakalayo, avimbele ukulahlekelwa kwamanzi ngaphambi kwesikhathi kwe-slurry, futhi aqinisekise ukuthi izinto ezisetshenziswayo zinamanzi anele okusabela kwe-hydration ngesikhathi senqubo yokuqina. Lokhu akwenzi nje amandla ezinto ezibonakalayo afane, kodwa futhi kuthuthukisa ukusebenza kokwakhiwa.
5. Thuthukisa ukumelana nomthelela nokumelana nokugqoka
Ekusetshenzisweni okungokoqobo, izinto ezisekelwe kusimende ngokuvamile zidinga ukumelana nemithelela ehlukahlukene yangaphandle, njengokuhamba, ukungqubuzana, njll. Izinto ezisekelwe kusimende zendabuko azisebenzi kahle kule ndawo futhi zivame ukuguga noma ukubhidlika kalula. I-latex powder e-redispersible ingathuthukisa ukumelana nomthelela kanye nokumelana nokugqokwa kwezinto ngokusebenzisa ukuguquguquka nokuqina kwefilimu ye-polymer.
Ngemva kokwengeza impushana ye-latex ehlakazeka kabusha, lapho izinto ezisekelwe kusimende zithintwa amandla angaphandle, ifilimu ye-polymer eyakhiwe ngaphakathi ingamunca futhi ihlakaze amandla omthelela futhi inciphise umonakalo ongaphezulu. Ngesikhathi esifanayo, ukwakheka kwefilimu ye-polymer futhi kunciphisa ukuchithwa kwezinhlayiya ngesikhathi sokugqoka, ngaleyo ndlela kuthuthukisa kakhulu ukuqina kwezinto ezibonakalayo.
6. Ubungane bemvelo
Njengento evumelana nemvelo, i-latex powder ehlakazeka kabusha ayinabo ubuthi futhi ayinabungozi ngesikhathi sokusetshenziswa, futhi ihambisana nesiqondiso sokuthuthukiswa kwezinto zokwakha eziluhlaza zanamuhla. Akugcini nje ukunciphisa ukukhiqizwa kwemfucuza yokwakha, kodwa futhi kwandisa impilo yesevisi yezinto futhi kunciphisa isidingo sokugcinwa njalo nokushintshwa, ngaleyo ndlela kunciphisa umthelela emvelweni ngezinga elithile.
Njengesibophezelo ezinhlelweni ezisekelwe kusimende, ukusetshenziswa kwe-latex powder ephindwe kabusha kuthuthukisa kakhulu izici eziphelele zezinto ezibonakalayo, okuhlanganisa ukunamathela, ukuguquguquka, ukumelana nokuqhekeka, ukumelana kwamanzi nokumelana nokugqoka. Ngaphezu kwalokho, ukusebenza kwayo okuthuthukisiwe kokwakhiwa kanye nobungane bemvelo nakho kukwenze kwasetshenziswa kabanzi ezintweni zokwakha. Ngokuthuthuka kobuchwepheshe kanye nokwanda kwezidingo zokwakha, i-latex powder ehlakazeka kabusha izodlala indima ebaluleke kakhulu ezintweni ezisekelwe kusimende futhi inikeze izixazululo ezisebenza kahle nezihlala isikhathi eside embonini yezokwakha.
Isikhathi sokuthumela: Sep-29-2024