Ama-Admixtures adlala indima ebalulekile ekuthuthukiseni ukusebenza kokwakhiwa kodaka oluxutshwe okomile.Okulandelayo kuhlaziya futhi kuqhathanise izakhiwo eziyisisekelo ze-latexr powder ne-cellulose, futhi kuhlaziya ukusebenza kwemikhiqizo yodaka oluxutshwe okomile kusetshenziswa izixube.
Impushana ye-latex ehlakazeka kabusha
I-redispersible latexr powder icutshungulwa ngokumiswa kwesifutho se-emulsion ye-polymer ekhethekile.I-latexr powder eyomisiwe ezinye izinhlayiya eziyindilinga ezingama-80~100mm eziqoqwe ndawonye.Lezi zinhlayiya zincibilika emanzini futhi zakha ukuhlakazeka okuzinzile okukhulu kancane kunezinhlayiya ze-emulsion zangempela, ezakha ifilimu ngemva kokuphelelwa amandla kwamanzi nokomisa.
Izindlela ezihlukene zokuguqula zenza impushana ye-latex ehlakazeka kabusha ibe nezakhiwo ezihlukene njengokumelana namanzi, ukumelana ne-alkali, ukumelana nesimo sezulu kanye nokuguquguquka.I-latexr powder esetshenziselwa udaka ingathuthukisa ukumelana nomthelela, ukuqina, ukumelana nokugqoka, ukwakhiwa kalula, amandla okubopha nokuhlangana, ukumelana nesimo sezulu, ukumelana neqhwa, ukuxoshwa kwamanzi, amandla okugoba namandla okuguquguquka kodaka.
I-cellulose ether
I-Cellulose ether yitemu elivamile lochungechunge lwemikhiqizo ekhiqizwa ukusabela kwe-alkali cellulose kanye ne-etherifying agent ngaphansi kwezimo ezithile.I-alkali cellulose ithathelwa indawo ama-etherifying ahlukene ukuze kutholwe ama-cellulose ether ahlukene.Ngokwezakhiwo ze-ionization zama-substituents, ama-cellulose ether angahlukaniswa abe izigaba ezimbili: i-ionic (njenge-carboxymethyl cellulose) kanye ne-non-ionic (njenge-methyl cellulose).Ngokohlobo lwe-substituent, i-cellulose ether ingahlukaniswa ibe i-monoether (efana ne-methyl cellulose) ne-ether exutshiwe (njenge-hydroxypropyl methyl cellulose).Ngokuvumelana ne-solubility ehlukene, ingahlukaniswa ibe inyibilika emanzini (njenge-hydroxyethyl cellulose) kanye ne-organic solvent-soluble (njenge-ethyl cellulose), njll. ihlukaniswe ngohlobo olusheshayo kanye nohlobo lokuchithwa olubambezelekile oluphathwayo.
Indlela yokusebenza ye-cellulose ether odakeni imi kanje:
(1) Ngemva kokuba i-cellulose ether esesimendeni isincibilikisiwe emanzini, ukusatshalaliswa okusebenzayo nokufana kwe-cementitious material ohlelweni kuyaqinisekiswa ngenxa yomsebenzi ongaphezulu, futhi i-cellulose ether, njenge-colloid evikelayo, "igoqa" okuqinile. izinhlayiya kanye Ungqimba lwefilimu yokugcoba kwakheka endaweni yalo yangaphandle, okwenza uhlelo lodaka luzinze, futhi luthuthukise ukugeleza kodaka ngesikhathi sokuxuba kanye nokushelela kokwakhiwa.
(2) Ngenxa yesakhiwo sawo samangqamuzana, isixazululo se-cellulose ether senza amanzi odaka angabi lula ukulahlekelwa, futhi kancane kancane siyawakhulula isikhathi eside, okwenza udaka lugcine amanzi kahle nokusebenza.
i-wood fiber
I-Wood fiber yenziwe ngezitshalo njengento eluhlaza eyinhloko futhi icutshungulwa uchungechunge lobuchwepheshe, futhi ukusebenza kwayo kuhlukile kulokho kwe-cellulose ether.Izici eziyinhloko yilezi:
(1) Ayincibiliki emanzini nasezincibilikisini, futhi ayincibiliki ku-asidi ebuthakathaka nasezixazululweni eziyisisekelo ezibuthakathaka
(2) Ifakwe odakeni, izodlulela esakhiweni esinezinhlangothi ezintathu esimweni esimile, ikhulise ukumelana ne-thixotropy kanye ne-sag yodaka, futhi ithuthukise ukwakheka.
(3) Ngenxa yokwakheka kwe-three-dimensional ye-wood fiber, inendawo "yokuvala amanzi" odakeni oluxubile, futhi amanzi odaka ngeke amunceke noma asuswe kalula.Kodwa ayinakho ukugcinwa kwamanzi okuphezulu kwe-cellulose ether.
(4) Umphumela omuhle we-capillary we-wood fiber unomsebenzi "wokuqhutshwa kwamanzi" odakeni, okwenza umswakama ongaphezulu kanye nomswakama wangaphakathi wodaka uvame ukuhambisana, ngaleyo ndlela unciphise imifantu ebangelwa ukuncipha kokungalingani.
(5) I-Wood fiber inganciphisa ukucindezeleka kwe-deformation yodaka oluqinile futhi inciphise ukuncipha nokuqhekeka kodaka.
Isikhathi sokuthumela: Mar-10-2023