Ama-Fireners we-Latex Paints kumele abe nokuhambisana okuhle nge-Latex Polymer Compounds, ngaphandle kwalokho kuzoba nenani elincane lokuthungwa kufilimu lokuhlanganisa, futhi okubangelwa ukwehla kwe-viscosity kanye ne-coarser Particle usayizi. Abakhudlwana bazoshintsha imali ekhokhwayo ye-emulsion. Isibonelo, ama-cationic amikhulu azoba nomphumela ongaphenduki kuma-anionic emulsifiers futhi kubangele ukwenziwa kwe-densal. Upende ofanele we-latex upende kufanele ube nezindawo ezilandelayo:
1. Umthamo ophansi nokuvuleka okuhle
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3. Ukugcinwa kwamanzi okuhle, akukho bublues womoya osobala
4. Akunamiphumela emibi kwizakhiwo zefilimu yokupenda ezifana nokumelanahla, isicwebezelisi, ukucasha amandla nokumelana kwamanzi
I-5. Akunakuvunyelwa kwemibala
Ubuchwepheshe obukhulayo be-latex Paint buyisinyathelo esibalulekile sokuthuthukisa ikhwalithi ye-latex futhi unciphise izindleko. I-Hydroxyyethyl celtulose iyinhlangano ephakeme ekahle, enemiphumela emibi ngokuqina, ukuqina kanye nokulungiswa kwe-rherological kopende we-latex.
Enqubeni yokukhiqiza ye-Latex Paint, i-Hydroxyyethyl cellulose (i-HEC) isetshenziswa njenge-ejenti ehlakazekile, ikhule kanye ne-pigment yokumisa i-agent ukuqina umkhiqizo, yehlise i-agglomeration, yenza ifilimu lokupenda bushelelezi futhi busheleleke, futhi wenze i-latex paint ehlala isikhathi eside . I-Rheology enhle, ingamelana namandla amakhulu okugunda, futhi anganikeza amandla amahle, ukumelana nokumelana nokufana kwe-pigment. Ngasikhathi sinye, i-HEC inokusebenza okuhle, nopende we-latex ohlanganisiwe no-HEC ine-Pseudoplazity, ngakho-ke ukugcwala, ukugcwala, ukufafaza kube nezinzuzo zokulondolozwa kwabasebenzi, akukho lula ukusula. I-HEC inokuthuthukiswa kombala okuhle kakhulu. Kunokubi okuhle kakhulu kwabanogcezi kanye nama-binders, okwenza i-latex Paint ibe nokuguquguquka kombala okuhle nokuqina. I-Versicility for application ekwakhiweni, yi-ether engeyona eye-ionic. Ngakho-ke, ingasetshenziswa ebangeni elibanzi le-PH (2 ~ 12), futhi lingahlanganiswa nezakhi ku-General Teatex Paint ezifana nemibala esebenzayo, izengezo, usawoti oncibilikayo noma ama-electrolyte.
Akunamphumela omubi kwifilimu yokuhlanganisa, ngoba isixazululo samanzi we-HEC sinezici zokungezwani kwamanzi okusobala, akulula ukugcwala ngesikhathi sokukhiqiza nokwakha, kanye nokuthambekela kwezimbobo zentaba-mlilo kanye nama-pinoholes aphansi.
Ukuqina okuhle kwesitoreji. Ngesikhathi sokugcina isikhathi eside, ukungafani kanye nokumiswa kwe-pigment kungagcinwa, futhi ayikho inkinga yombala ontantayo futhi uqhakaze. Kukhona ungqimba lwamanzi omncane ebusweni bopende, futhi lapho izinga lokushisa lesitoreji lishintsha kakhulu. I-viscosity yayo isezinzile.
I-HEC ingakhuphula i-PVC value (ivolumu ye-pigment valegraph) Ukuhlanganiswa okuqinile kuze kufike ku-50-60%. Ngaphezu kwalokho, i-coating ebanzi yopende yopende osuselwa emanzini nayo ingasebenzisa i-HEC.
Njengamanje, abakhudlwana abasetshenziswa ku-Featx Paints aphakathi nendawo abaphakathi nendawo bangeniswa nge-hec ne-acrylic polymer (kufaka phakathi i-polymer, i-homopolymer noma i-copolymer emulsion ikhudlwana ye-acrylic acid ne-methacrylic acid).
I-Hydroxyethyl cellulose ingasetshenziselwa
1. Njenge-glue ehlakazayo noma yokuvikela
Ngokuvamile, i-HEC enokubonakala kwe-10-30mpas iyasetshenziswa. I-HEC engasetshenziswa kuze kufike ku-300MPA S izoba nomphumela ongcono wokuhambisa uma isetshenziswa ngokuhlanganiswa ne-anionic noma i-cationic surficcactants. Umthamo wesethenjwa ngokuvamile u-0.05% wesisindo se-monomer.
2. Njengomkhulu
Sebenzisa i-15000MPA. Umthamo wesethenjwa we-High-Viscosity HEC ephakeme ngenhla kwe-0.5-1% yesisindo esiphelele sopende we-latex, futhi inani le-PVC lingafinyelela cishe ngo-60%. Sebenzisa i-HEC ye-20PA, s ku-Latex Paint, futhi ukusebenza kwe-latex Paint kuhamba phambili. Izindleko zokumane usebenzise i-HEC ngenhla kwe-30o00pa.S ziphansi. Kodwa-ke, izindawo ezikhulayo ze-latex Paint azilungile. Ngokombono wezidingo zekhwalithi kanye nokwehliswa kwezindleko, kungcono ukusebenzisa i-medium ne-helcosity ephezulu kakhulu.
I-3. Indlela yokuxuba ngopende we-latex
I-HEC ephethwe ingaphezulu ingangezwa ku-powder eyomile noma ngefomu lokunamathisela. I-powder eyomile ingezwa ngokuqondile ku-pigat ye-pigment. I-PH ephuzwini lokuphakelayo kufanele ibe ngu-7 noma iphansi. Izakhi ze-alkaline ezifana neYanbian Dispersant zingangezwa ngemuva kokuthi i-HEC inamanzi futhi ihlakazeke ngokuphelele. Ama-Slurries enziwe nge-HEC kufanele ahlanganiswe abe slurry ngaphambi kokuthi i-HEC iye yanele isikhathi sokuya e-hydrate futhi ivumele ukuqina esimweni esingabonakali. Kungenzeka futhi ukulungiselela i-hec pulp nge-ethylene glycol coalescing agescents.
4. Anti-Mold of Latex Paint
I-HEC esondelana yamanzi izokwenza i-bioderhade uma ihlangana nezinduku ezinemiphumela ekhethekile ku-cellulose kanye nokutholakala kwayo. Akwanele ukwengeza ukulondolozwa kupende wedwa, zonke izinto kumele zibe mahhala. Imoto yokukhiqiza ye-latex Paint kumele igcinwe ihlanzekile, futhi yonke imishini kumele ihlanzeke njalo nge-Steam 0.5% isixazululo se-mercury
Isikhathi sePosi: Dec-26-2022