Yiziphi izakhiwo zodaka ezingathuthukiswa ngempushana ye-latex ehlakazeka kabusha?

I-latex powder e-redispersible yenziwe nge-polymer emulsion ngokumisa isifutho, ixutshwe namanzi odaka lukasimende, i-emulsified futhi ihlakazwe emanzini, bese ivuselela i-emulsion ye-polymer ezinzile. Ngemuva kokuthi i-latex powder ehlakazeka kabusha i-emulsified futhi ihlakazeke emanzini, amanzi ayahwamuka , Yakha ifilimu ye-polymer odakeni ukuze uthuthukise izakhiwo zodaka. Izimpushana ze-latex ezihlakazeka kabusha ezihlukene zinemiphumela ehlukene osikeni lwempushana owomile.

1. Thuthukisa ukumelana komthelela, ukusebenza nokumelana nokugqoka kodaka

Udaka lugcwele umgodi we-cement mortar pore, ukubumbana kodaka lukasimende kuyathuthukiswa, futhi ukumelana nokugqoka kuyathuthukiswa. Ngaphansi kwesenzo samandla angaphandle, kungabangela ukuphumula ngaphandle kokubhujiswa. Iphepha le-polymer lingagcinwa ohlelweni lokuphatha udaka lukasimende.

2. Thuthukisa ukunamathela kokwakhiwa kodaka

Izinhlayiya ze-polymer powder zinomphumela wokumanzisa, ukuze izingxenye ezimbili zodaka lukasimende zigeleze ngokuzimela. Ngaphezu kwalokho, i-powder yenjoloba inomphumela wokwenza igesi.

3. Thuthukisa amandla okucindezela okubophayo namandla ahlangene odaka

Njengento enamathelayo yamakhemikhali ephilayo, impushana ye-latex ehlakazeka kabusha ingakhiqiza amandla acindezelayo aphezulu namandla okucindezela kumabhodi ahlukene. Idlala indima ebaluleke kakhulu ekuhlanganisweni kodaka lukasimende kanye nezinto zokusetshenziswa zamakhemikhali emvelo (isisu, ibhodi legwebu elifakwa insulating) kanye nengaphezulu lebhodi lokuhlanza. I-DEM impahla eluhlaza kanye ne-depilatory polymer powder isetshenziswa kabanzi kuzo zonke izinhlelo zokuphatha udaka lukasimende ukuze kuthuthukiswe ukuhlangana kodaka lukasimende.

4. Thuthukisa ukumelana nokuguga kodaka, umelane nemijikelezo yokuncibilika kweqhwa, futhi uvimbele udaka lukasimende ukuthi lungaqhekeki.

I-latex powder ye-redispersible iyi-resin ye-thermoplastic eguquguqukayo enhle, engenza udaka lubhekane nomonakalo obangelwa ukushisa kwangaphandle nezimo ezibandayo, futhi ugweme ngokunengqondo ukuqhekeka odongeni ngenxa yezinguquko zokushisa.

5. Khulisa i-hydrophobicity yodaka futhi unciphise okuqukethwe komswakama

I-latex powder e-redispersible i-demulsified emgodini we-cement mortar kanye nongqimba olungaphezulu, futhi iphepha le-polymer akulula ukuphinde lihlakazeke ngemva kokwelashwa kwamanzi, ukuvimbela ukungena kwamanzi nokuthuthukisa ukungakwazi ukungena. Lo boya bengilazi obungangeni manzi bunomphumela ongcono ngenxa yekhono lawo eliyingqayizivele lokuhlakaza impushana yemvelo ye-latex.

Ukusetshenziswa okuyinhloko kwe-latex powder ephindwe kabusha

Impushana efakwa odongeni yangaphakathi nangaphandle, okokunamathisela okunamathayili, i-ejenti yokukhomba, i-ejenti yokusebenzelana kwempushana eyomile, udaka lwangaphandle olushisayo olufakwa ezindongeni, udaka oluzilinganisa, udaka lokulungisa, udaka lokuhlobisa, udaka olungangeni manzi lwangaphandle olushisayo oluxutshwe nodaka. Odakeni, okokuthuthukisa ukuqina, imodulus enwebekayo ephezulu kanye nobunye ubuthakathaka bodaka lukasimende lwendabuko, kanye nokunikeza udaka lukasimende ukuguquguquka okungcono namandla ebhondi eqinile, ukuze limelane futhi libambezele ukukhiqizwa kokuqhekeka kodaka lukasimende. Njengoba i-polymer kanye nodaka lwakha isakhiwo senethiwekhi esingena ngaphakathi, ifilimu ye-polymer eqhubekayo yenziwa ezimbotsheni, eqinisa ukubopha phakathi kwama-aggregates futhi ivimbele ezinye izimbotshana odakeni, ngakho udaka oluguquliwe ngemuva kokuqina lungcono kunodaka lukasimende. Kukhona ukuthuthuka okukhulu.

Izakhiwo zomkhiqizo ze-latex powder ehlakazeka kabusha

1. Thuthukisa amandla okugoba namandla okugoba odaka

Ifilimu ye-polymer eyakhiwe ngempushana ye-latex e-dispersible inokuguquguquka okuhle. Amafilimu akhiwa ezikhaleni nasezindaweni ezingaphezulu zezinhlayiya zodaka lukasimende ukuze akhe ukuxhumana okuvumelana nezimo. Udaka lukasimende olusindayo noluphukayo luba nokunwebeka. Udaka olungezwe ngempushana ye-latex ehlakazeka kabusha luphakeme ngokuphindwe kaningana ekuqiniseni ukumelana nokuguquguquka kunodaka olujwayelekile.

2. Thuthukisa amandla okubopha nokuhlangana kodaka

Ngemuva kokuthi impushana ye-latex ehlakazeka kabusha njengesibophezelo sezinto eziphilayo kwakhiwa ibe ifilimu, ingakha amandla aphezulu okuqina kanye namandla okubopha kuma-substrates ahlukene. Idlala indima ebalulekile ekunamatheleni kodaka ezintweni eziphilayo (EPS, ibhodi legwebu elikhishwe) kanye nama-substrates angaphezulu abushelelezi. Ifilimu ye-polymer rubber powder isatshalaliswa kulo lonke uhlelo lodaka njengento yokuqinisa ukukhulisa ukuhlangana kodaka.

3. Thuthukisa ukumelana komthelela, ukuqina nokumelana nokugqoka kodaka

Izinhlayiya ze-raber ze-powder zigcwalisa umgodi wodaka, ukuminyana kodaka kuyanda, futhi ukumelana nokugqoka kuyathuthukiswa. Ngaphansi kwesenzo samandla angaphandle, izokhiqiza ukuphumula ngaphandle kokubhujiswa. Ifilimu ye-polymer ingaba khona unomphela ohlelweni lodaka.

4. Thuthukisa ukumelana nesimo sezulu kanye nokumelana nokuncibilika kodaka, futhi uvimbele udaka ekuqhekekeni

I-redispersible latex powder iyi-resin ye-thermoplastic ene-flexible eguquguqukayo, engenza udaka lubhekane nokushintsha kwendawo ebandayo yangaphandle neyokushisa, futhi ivimbele ngokuphumelelayo udaka ekuqhekekeni ngenxa yokushintsha umehluko wokushisa.

5. Thuthukisa i-hydrophobicity yodaka futhi unciphise ukumuncwa kwamanzi

I-latex powder ehlakazeka kabusha yenza ifilimu emgodini nangaphezulu kodaka, futhi ifilimu ye-polymer ngeke iphinde ihlakazeke ngemva kokuvezwa emanzini, okuvimbela ukungena kwamanzi futhi kuthuthukise ukungakwazi ukungena. I-latex powder ekhethekile ephindwe kabusha enomphumela we-hydrophobic, umphumela ongcono we-hydrophobic.

6. Ukwenza ngcono ukusebenza kokwakhiwa ngodaka

Kunomphumela wokugcoba phakathi kwezinhlayiya ze-polymer rubber powder, ukuze izingxenye zodaka zikwazi ukugeleza ngokuzimela. Ngesikhathi esifanayo, i-powder yenjoloba inomphumela we-inductive emoyeni, inikeze ukucindezelwa kodaka futhi ithuthukise ukusebenza kokwakhiwa kodaka.