Ungakhetha kanjani i-polymer powder ehlakazekayo?

Ungakhetha kanjani i-polymer powder ephinda ihlakazeka?

Ayikho indlela esebenzayo ngaphandle kokufaka umkhiqizo esivivinyweni.

Ukukhethwa kwempushana ye-latex ehlakazeka kabusha efanelekile kufanele kucabangele lezi zici ezilandelayo:

1. Izinga lokushisa lengilazi lokuguquka kwempushana ye-polymer ehlakazeka kabusha.

Izinga lokushisa lokushintsha kwengilazi liwukuthi i-polymer ibonisa ukunwebeka; ngaphansi kwalokhu kushisa, i-polymer ibonisa ukuqina. Izinga lokushisa lokushintsha kwengilazi le-latex powder evamile lingu- -15±5℃, futhi i-latex powder yabakhiqizi abavamile ngokuyisisekelo ayinayo le nkomba. Inkinga. Izinga lokushisa lokushintsha kwengilazi liyinkomba eyinhloko yezinto ezibonakalayo ze-latex powder ehlakazeka kabusha. Ngomkhiqizo othize, ukukhethwa okunengqondo kwezinga lokushisa lokushintsha kwengilazi yempushana ye-latex edispersible kulungele ukuthuthukisa ukuguquguquka komkhiqizo nokugwema izinkinga ezifana nokuqhekeka.

2. Izinga lokushisa elincane lokwakha ifilimu

Ngemuva kokuthi i-latex powder ehlakazeka kabusha ihlanganiswe namanzi futhi iphinde ifakwe emulsified, inezici ezifanayo ne-emulsion yasekuqaleni, okungukuthi, ifilimu izokwakhiwa ngemva kokuba amanzi eqhuma. Le filimu inokuguquguquka okuphezulu nokunamathela okuhle kuma-substrates ahlukahlukene. Okuhlukile Izinga lokushisa elincane lefilimu le-latex powder elikhiqizwa umenzi lizohluka kancane. Inkomba yabanye abakhiqizi ingu-0°C, futhi inkomba yabanye abakhiqizi ingu-5°C. Uma nje izinga lokushisa elenza ifilimu le-latex powder elinekhwalithi enhle liphakathi kuka-0 no-5°C phakathi.

3. Ukuqedwa kabusha.

Impushana ye-latex ehlakazeka kabusha engaphansi kancane noma ayincibiliki kalula emanzini abandayo noma emanzini ane-alkaline.

4. Inani.

Okuqukethwe okuqinile kwe-emulsion kumayelana ne-53%, okusho ukuthi cishe amathani angu-1.9 we-emulsion welashwa ibe ithani elilodwa le-rubber powder.

Uma kubalwa u-2% wamanzi, khona-ke amathani angu-1.7 we-emulsion asetshenziselwa ukwenza ithani elilodwa le-rubber powder, kanye no-10% wokuqukethwe komlotha,

Kuthatha cishe amathani angu-1.5 we-emulsion ukukhiqiza ithani elilodwa lempushana yerabha.

5. Isixazululo esinamanzi se-latex powder

Ukuze uhlole i-viscosity ye-i-polymer powder ehlakazeka kabusha, amanye amakhasimende avele ancibilikisa impushana ye-latex emanzini futhi ayigova ngesandla ukuze ayihlole, futhi athola ukuthi yayingekho ukunamathela, ecabanga ukuthi kwakungeyona impushana ye-latex yangempela.

Eqinisweni, i-latex powder ehlakazeka kabusha ngokwayo ayinamathele, iyimpushana eyakhiwe ngemva kokuba i-emulsion ye-polymer isifuthwe-yomisiwe.

Lapho i-latex powder ehlakazeka kabusha ixubene namanzi futhi i-emulsified kabusha, inezici ezifanayo njenge-emulsion yasekuqaleni, okungukuthi, ifilimu eyakhiwe ngemva kokuba amanzi ehwamuka inokuguquguquka okuphezulu futhi inokunamathela okuhle kakhulu kuma-substrates ahlukahlukene.

Kungase futhi kuthuthukise ukugcinwa kwamanzi kwento, kuvimbele udaka lukasimende ukuba luqine ngokushesha, lome futhi luqhekeke; ukwandisa ipulasitiki yodaka futhi uthuthukise ukusebenza kahle kokwakhiwa. Ukuhlakazeka, izakhiwo zokwenza ifilimu, ukuguquguquka (okubandakanya ukuhlolwa kokukhipha, ukuthi amandla okuqala afanelekile) ngokuvamile, imiphumela yokuhlolwa izotholakala ngemva kwezinsuku eziyi-10.