Impuphu ye-latex ephinde ihlakazeke iyi-emulsion ekhethekile esuselwe emanzini kanye ne-polymer binder eyenziwe ngokufutha nge-vinyl acetate-ethylene copolymer njengezinto eziyinhloko zokusetshenziswa. Ngemva kokuba ingxenye yamanzi ihwamuka, izinhlayiya ze-polymer zakha ifilimu ye-polymer nge-agglomeration, esebenza njenge-binder. Lapho impuphu ye-latex ephinde ihlakazeke isetshenziswa kanye namaminerali angenazinto eziphilayo njengesamente, ingashintsha udoti. Imisebenzi eyinhloko yempuphu ye-latex ephinde ihlakazeke ...
(1) Thuthukisa amandla esibopho, amandla okunamathela kanye namandla okugoba.
Impuphu ye-latex ephinde ihlakazeke ingathuthukisa kakhulu amandla esibopho se-mortar. Uma inani elingeziwe likhulu, kulapho ukuphakamisa kukhula khona. Amandla aphezulu esibopho angavimbela ukushwabana ngezinga elithile, futhi ngesikhathi esifanayo, ukucindezeleka okubangelwa ukuguqulwa kulula ukukusabalalisa nokukhulula, ngakho-ke amandla esibopho abaluleke kakhulu ekuthuthukiseni ukumelana nokuqhekeka. Izifundo zikhombisile ukuthi umphumela wokubambisana we-cellulose ether kanye ne-polymer powder usiza ekuthuthukiseni amandla esibopho se-mortar yesamente.
(2) Nciphisa i-modulus enwebekayo yesimende, ukuze isimende esiqinile sesamente sibe nokuguquguquka okuthile.
I-modulus elastic ye-latex powder ephinde ihlakazeke iphansi, 0.001-10GPa; kuyilapho i-modulus elastic ye-cement mortar iphakeme, 10-30GPa, ngakho-ke i-modulus elastic ye-cement mortar izoncipha ngokufakwa kwe-polymer powder. Kodwa-ke, uhlobo kanye nenani le-polymer powder nakho kunomthelela ku-modulus ye-elastic. Ngokuvamile, njengoba isilinganiso se-polymer ne-cement sanda, i-modulus ye-elasticity iyancipha futhi ukukhubazeka kuyanda.
(3) Thuthukisa ukumelana namanzi, ukumelana ne-alkali, ukumelana nokuklwebheka kanye nokumelana nokushayisana.
Isakhiwo se-network membrane esakhiwe yi-polymer sivala imigodi kanye nemifantu ku-mortar yesimende, sinciphisa ukubhoboka komzimba oqinile, ngaleyo ndlela sithuthukise ukungenwa kwamanzi, ukumelana namanzi kanye nokumelana neqhwa komortar yesimende. Lo mphumela uyanda ngokwanda kwesilinganiso se-polymer-cement. Ukuthuthukiswa kokumelana nokuguguleka kuhlobene nohlobo lwempuphu ye-polymer kanye nesilinganiso se-polymer ku-cement. Ngokuvamile, ukumelana nokuguguleka kuyathuthuka njengoba isilinganiso se-polymer ku-cement sanda.
(4) Thuthukisa ukugeleza nokusebenza kahle kwe-mortar.
(5) Thuthukisa ukugcinwa kwamanzi kwe-mortar futhi unciphise ukuhwamuka kwamanzi.
I-polymer emulsion eyakhiwe ngokuncibilikisa i-polymer powder ephinde ihlakazeke emanzini ihlakazeka ku-mortar, bese kwakheka ifilimu eqhubekayo yemvelo ku-mortar ngemva kokuqina. Le filimu yemvelo ingavimbela ukufuduka kwamanzi, ngaleyo ndlela inciphise ukulahleka kwamanzi ku-mortar futhi idlale indima ekugcinweni kwamanzi.
(6) Nciphisa ukwenzeka kokuqhekeka
Ukwandiswa nokuqina kodaka lukasimende oluguquliwe lwe-polymer kungcono kakhulu kunodaka lukasimende olujwayelekile. Ukusebenza kokuguquguquka kungaphezu kokuphindwe kabili kunodaka lukasimende olujwayelekile; ukuqina komthelela kuyanda ngokwanda kwesilinganiso sikasimende we-polymer. Ngokukhula kwenani lempuphu ye-polymer engeziwe, umphumela wokusika oguquguqukayo we-polymer ungavimbela noma ubambezele ukuthuthukiswa kwemifantu, futhi ngesikhathi esifanayo unomphumela omuhle wokusabalala kokucindezeleka.
Isikhathi sokuthunyelwe: Juni-20-2023