I-Teatisperible Latex Towdex iyi-emulsion ekhethekile esekwe emanzini kanye ne-polymer birmer eyenziwe ngokufafaza i-viny acetate-ethylene copolymer njengezinto eziphambili eziluhlaza. Ngemuva kwengxenye yamanzi avele, izinhlayiya ze-polymer zakha ifilimu ye-polymer nge-agglomeration, esebenza njenge-binder. Lapho kusetshenziswa i-latex ye-latex ye-latex kanye namaminerali e-inorganic gelling anjengesimende, kungashintsha udaka. Imisebenzi esemqoka ye-latex evuselelayo ye-latex is kanje.
(1) Thuthukisa amandla amabhondi, amandla ashubile namandla okugoba.
I-FATTEX evuselelayo ye-latex ingathuthukisa kakhulu amandla webhondi lodaka. Okukhulu inani elingeziwe, kukhuphuka kakhulu. Amandla aphezulu okubopha angavimba i-shrinkage ngezinga elithile, futhi ngasikhathi sinye, ukucindezela okwenziwe yi-deformation kulula ukuhlakazeka nokukhululwa, ngakho-ke amandla abusayo kubaluleke kakhulu ekuthuthukiseni ukumelana nokuqhekeka. Ucwaningo lukhombisile ukuthi umphumela wokuvumelanisa we-cellulose ether ne-polymer powder usiza ukuthuthukisa amandla ebhondi kasimende kasimende.
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Modulus we-elastic we-latex powder evuselelayo iphansi, 0.001-10gpa; Ngenkathi i-modulus ye-elastic kasimende ephakeme, 10-30gpa, ngakho-ke i-modulus ye-elastic kasimende ngodaka izokwehla ngokufakwa kwe-polymer powder. Kodwa-ke, uhlobo nenani le-polymer powder libuye libe nomthelela ku-modulus yokuqina. Ngokuvamile, njengoba isilinganiso se-polymer siye ku-Cement siyakhuphuka, i-modulus ye-elastisticity iyancipha futhi ukuncipha komoya.
(3) Thuthukisa ukumelana kwamanzi, ukumelana nama-alkali, ukumelana nokuphikiswa kwe-abrasion kanye nokumelana nomthelela.
Isakhiwo se-membrane senethiwekhi esakhiwa yi-polymer sifaka izimbotshana kanye nemifantu ku-usimende kasimende, kunciphisa i-pority yomzimba oqinile, futhi ngaleyo ndlela kuthuthukise ukungakhululeki, ukumelana kwamanzi kanye nokuphikiswa kwesithwathwa kodaka kosimende. Lo mphumela ukhuphuka ngesilinganiso esandayo se-polymer-cement. Ukuthuthuka kokumelana nokugqoka kuhlobene nohlobo lwe-polymer powder kanye nesilinganiso se-polymer kuso usimende. Ngokuvamile, ukugqokwa kokugqoka kuthuthuka njengoba isilinganiso se-polymer kuya ku-cent aclew.
(4) Thuthukisa ububi kanye nokusebenza kodaka.
(5) Thuthukisa ukugcinwa kwamanzi ngodaka futhi unciphise ukuhwamuka kwamanzi.
I-polymer emulsion eyakhiwe ngokuqeda i-polymer powder evuselelayo yamanzi ihlakazeka ku-datar, futhi ifilimu eliqhubekayo le-organic lakhiwa kudaka ngemuva kokuqina. Le filimu ye-organic ingavimba ukufuduka kwamanzi, ngaleyo ndlela kunciphise ukulahlekelwa kwamanzi odongeni futhi kudlala indima ekugcinweni kwamanzi.
(6) Yehlisa umkhathi wokuqhekeka
I-elongation kanye nobunzima be-polymer usimende usimende udaka ngodaka lungcono kakhulu kunodaka olujwayelekile. Ukusebenza okuguqukayo kungaphezu kwezikhathi ezi-2 zodaka olujwayelekile kasimende; Ukuqina komthelela kukhuphuka ngokunyuka kwesilinganiso se-polymer cement. Ngokukhuphuka kwenani le-polymer powder elingeziwe, umphumela we-cushion oguqukayo we-polymer angavimba noma ukubambezeleka ukuthuthukiswa kwemifantu, futhi ngasikhathi sinye kunomphumela omuhle wokuhlakazeka kwengcindezelo.
Isikhathi Sokuthumela: Jun-20-2023