Ama-cellulose ethers (HEC, HPMC, MC, njll.) kanye nezimpushana ze-polymer ezihlakazeka kabusha (ngokuvamile zisekelwe ku-VAE, ama-acrylates, njll.)ziyizithasiselo ezimbili ezibalulekile odakeni, ikakhulukazi udaka lwengxube eyomile. Ngayinye inemisebenzi eyingqayizivele, futhi ngemiphumela ehlakaniphile ye-synergistic, ithuthukisa kakhulu ukusebenza okuphelele kodaka. Ukusebenzisana kwabo kubonakala ngokuyinhloko kulezi zici ezilandelayo:
Ama-cellulose ether ahlinzeka ngezindawo ezibalulekile (ukugcina amanzi nokuqina):
Ukugcinwa kwamanzi: Lona omunye wemisebenzi eyinhloko ye-cellulose ether. Ingenza ifilimu ye-hydration phakathi kwezinhlayiya zodaka namanzi, inciphise kakhulu izinga lokuhwamuka kwamanzi ku-substrate (njengezitini ezinama-porous namabhulokhi) nomoya.
Umthelela kumpushana we-polymer ehlakazeka kabusha: Lokhu kugcinwa kwamanzi okuhle kakhulu kudala izimo ezibalulekile ukuze i-polymer powder ehlakazeka kabusha isebenze:
Ukunikeza isikhathi sokwenza ifilimu: izinhlayiya ze-polymer powder zidinga ukuchithwa emanzini futhi zihlakazwe kabusha zibe yi-emulsion. I-polymer powder ibe isihlangana ibe ifilimu ye-polymer eqhubekayo, eguquguqukayo njengoba amanzi ehwamuka kancane kancane phakathi nenqubo yokomisa udaka. I-Cellulose ether ibambezela ukuhwamuka kwamanzi, inikeze izinhlayiya ze-polymer powder isikhathi esanele (isikhathi esivulekile) ukuze zihlakazeke ngokulinganayo futhi zithuthele ezimbotsheni zodaka kanye nezindawo zokuhlangana, ekugcineni zenze ifilimu ye-polymer yekhwalithi ephezulu, ephelele. Uma ukulahlekelwa kwamanzi kushesha kakhulu, i-polymer powder ngeke ifake ngokugcwele ifilimu noma ifilimu izoyeka, inciphise kakhulu umphumela wayo wokuqinisa.
Ukuqinisekisa Ukufakwa Kwamanzi Kasimende: Ukufakwa kukasimende kudinga amanzi.Izakhiwo zokugcina amanziye-cellulose ether iqinisekisa ukuthi ngenkathi i-polymer powder yakha ifilimu, usimende futhi uthola amanzi anele okukhipha amanzi agcwele, ngaleyo ndlela yakhe isisekelo esihle samandla okuqala nasekupheleni kwesikhathi. Amandla akhiqizwa usimende hydration kuhlanganiswe nokuguquguquka kwefilimu ye-polymer ayisisekelo sokusebenza okuthuthukisiwe.
I-Cellulose ether ithuthukisa ukusebenza (ukujiya nokufaka umoya):
Ukuqina/Thixotropy: Ama-cellulose ether akhulisa kakhulu ukuvumelana kanye ne-thixotropy yodaka (aminyene uma enganyakazi, abe mncane uma enyakaziswa/esetshenziswa). Lokhu kuthuthukisa ukumelana nodaka ukuze lihlehle (ukwehla endaweni eqondile), okwenza kube lula ukusabalala kanye nokwenziwa ileveli, okuholela ekuqedeni okungcono.
Umthelela wokufaka umoya: I-Cellulose ether inekhono elithile lokufaka umoya, yethula amabhamuza amancane, afanayo nazinzile.
Umthelela ku-polymer powder:
Ukusabalalisa okuthuthukisiwe: I-viscosity efanele isiza izinhlayiya ze-latex powder zihlakazeke ngokulinganayo ohlelweni lodaka ngesikhathi sokuxuba futhi kunciphisa i-agglomeration.
Ukusebenza okuthuthukisiwe: Izakhiwo ezinhle zokwakha kanye ne-thixotropy yenza udaka oluqukethe i-latex powder lube lula ukuphatha, ukuqinisekisa ukuthi lusetshenziswa ngokulinganayo ku-substrate, okubalulekile ekusebenziseni ngokugcwele umphumela wokubopha we-latex powder esibonakalayo.
Ukugcotshwa kanye nemiphumela yokugudluza yamabhamuza omoya: Amabhamuza omoya ethuliwe asebenza njengama-ball bear, athuthukisa ukuthambisa nokusebenza kodaka. Ngesikhathi esifanayo, lawa ma-microbubbles buffer ukucindezeleka ngaphakathi kodaka oluqinile, okuhambisana nomphumela oqinisayo we-latex powder (nakuba ukungena komoya ngokweqile kunganciphisa amandla, ngakho-ke ibhalansi iyadingeka).
I-polymer powder ehlakazeka kabusha ihlinzeka ngokuhlangana okuguquguqukayo nokuqiniswa (ukwakheka kwefilimu nokubopha):
Ukwakhiwa kwefilimu ye-polymer: Njengoba kushiwo ngaphambili, phakathi nenqubo yokomiswa kodaka, izinhlayiya ze-latex powder zihlangana zibe ifilimu yenethiwekhi ye-polymer eqhubekayo enezinhlangothi ezintathu.
Umthelela ku-matrix yodaka:
Ukubumbana okuthuthukisiwe: Ifilimu ye-polymer igoqa kanye namabhuloho imikhiqizo ye-cement hydration, izinhlayiya zikasimende ezingenamanzi, ama-fillers nama-aggregates, athuthukisa ngokuphawulekayo amandla okubopha (ukubumbana) phakathi kwezingxenye ngaphakathi kodaka.
Ukuvumelana nezimo okuthuthukisiwe kanye nokumelana nokuqhekeka: Ifilimu ye-polymer iyavumelana nezimo ngokwemvelo futhi i-ductile, inika udaka oluqinile umthamo omkhulu wokuguga. Lokhu kwenza udaka lukwazi ukumunca kangcono futhi lusabalalise ukucindezeleka okubangelwa ukushintsha kwezinga lokushisa, ukushintsha komswakama, noma ukugudluzwa kancane kwe-substrate, kunciphisa kakhulu ingozi yokuqhekeka (ukumelana nokuqhekeka).
Ukumelana nomthelela okuthuthukisiwe nokumelana nokugqokwa: Ifilimu ye-polymer eguquguqukayo ingakwazi ukumunca amandla omthelela futhi ithuthukise ukumelana nomthelela kanye nokumelana nokugqoka kodaka.
Ukwehlisa i-elastic modulus: ukwenza udaka luthambe futhi luvumelane nezimo ekuwohlokeni kwe-substrate.
I-Latex powder ithuthukisa ukuhlangana kobuso (ukuthuthukiswa kwesixhumi esibonakalayo):
Ukwengeza indawo esebenzayo yama-cellulose ethers: Umphumela wokugcina amanzi we-cellulose ethers futhi unciphisa inkinga "yokushoda kwamanzi okuhlangene" okubangelwa ukumuncwa kwamanzi ngokweqile yi-substrate. Okubaluleke nakakhulu, izinhlayiya ze-polymer powder / ama-emulsions anomkhuba wokuthuthela ku-interface ye-mortar-substrate kanye ne-interface ye-mortar-reinforcement fiber (uma ikhona).
Ukwakha isendlalelo esibonakalayo esiqinile: Ifilimu ye-polymer eyakhiwe kusixhumi esibonakalayo ingena ngokuqinile futhi ibambelele kuma-micropores we-substrate (ukubopha ngokomzimba). Ngesikhathi esifanayo, i-polymer ngokwayo ibonisa ukunamathela okuhle kakhulu (i-adhesion yamakhemikhali / ngokomzimba) ezinhlobonhlobo zama-substrates (ukhonkolo, izitini, ukhuni, ama-insulation board e-EPS/XPS, njll.). Lokhu kuthuthukisa kakhulu amandla esibopho sodaka (ukunamathela) kuma-substrates ahlukahlukene, kokubili ekuqaleni nangemuva kokucwiliswa emanzini kanye nemijikelezo yokuqhwaza (ukumelana namanzi kanye nokumelana nesimo sezulu).
Ukusebenza kahle kwe-Synergistic kwesakhiwo se-pore nokuqina:
Imiphumela ye-cellulose ether: Ukugcinwa kwamanzi kuthuthukisa ukugeleza kukasimende futhi kunciphisa izimbotshana ezixegayo ezibangelwa ukushoda kwamanzi; umoya entraining umphumela wethula izimbotshana ezincane ezilawulekayo.
Umthelela wempushana ye-polymer: Ulwelwesi lwe-polymer luvimba kancane noma luvala izimbotshana ze-capillary, zenze ukwakheka kwembotshana kube kuncane futhi kunciphe ukuxhumeka.
I-Synergistic Effect: Umthelela ohlangene walezi zici ezimbili uthuthukisa ukwakheka kwezimbotshana zodaka, wehlise ukumuncwa kwamanzi futhi ukhulise ukungaboli kwawo. Lokhu akugcini nje ngokuthuthukisa ukuqina kodaka (ukumelana neqhwa nokuncibilika kukasawoti), kodwa futhi kunciphisa amathuba okuba i-efflorescence ngenxa yokuncipha kokumuncwa kwamanzi. Lesi sakhiwo se-pore esithuthukisiwe sibuye sihlotshaniswe namandla aphezulu.
I-Cellulose ether iyiko kokubili "isisekelo" kanye "nesiqiniseko": inikeza indawo yokugcina amanzi edingekayo (ivumela ukumiswa kukasimende kanye nokwakheka kwefilimu yempushana ye-latex), ithuthukisa ukusebenza kahle (iqinisekisa ukubekwa kodaka olufanayo), futhi ithonya i-microstructure ngokujiya nokufaka umoya.
I-latex powder ehlakazeka kabusha iyikho kokubili "isithuthukisi" kanye "nebhuloho": yakha ifilimu ye-polymer ngaphansi kwezimo ezivumayo ezidalwe i-cellulose ether, ithuthukisa kakhulu ukuhlangana kodaka, ukuguquguquka, ukumelana nokuqhekeka, amandla ebhondi, nokuqina.
I-Core synergy: Umthamo wokugcina amanzi we-cellulose ether uyimfuneko yokwakhiwa kwefilimu okuphumelelayo kwe-latex powder. Ngaphandle kokugcinwa kwamanzi okwanele, i-latex powder ayikwazi ukusebenza ngokugcwele. Ngokuphambene, ukubopha okuguquguqukayo kwe-latex powder kuqeda ukonakala, ukuqhekeka, kanye nokunamathela okwanele kwezinto ezisekelwe kusimende ezihlanzekile, okuthuthukisa kakhulu ukuqina.
Imiphumela ehlanganisiwe: Okubili kuyathuthukisana ekuthuthukiseni ukwakheka kwezimbotshana, ukunciphisa ukumuncwa kwamanzi, nokuthuthukisa ukuqina kwesikhathi eside, okuholela emiphumeleni ye-synergistic. Ngakho-ke, osimeni besimanje (njengamathayela anamathelayo, ukhonkolo ofakwa ngaphandle/udaka lokubopha, udaka oluzilinganisa ngokwalo, udaka olungangeni manzi, nodaka lokuhlobisa), ama-cellulose ether kanye nezimpushana ze-polymer ezihlakazeka kabusha cishe zihlala zisetshenziswa ngamabili. Ngokulungisa kahle uhlobo nesikali ngasinye, imikhiqizo yodaka yekhwalithi ephezulu ingadizayina ukuthi ihlangabezane nezimfuneko zokusebenza ezihlukahlukene. Umphumela wabo we-synergistic uyisihluthulelo sokuthuthukisa udaka lwendabuko lube yizinhlanganisela zikasimende eziguquliwe ze-polymer ezisebenza kahle kakhulu.
Isikhathi sokuthumela: Aug-06-2025