Ukusetshenziswa kwe-Hydroxyethyl celtulose ku-Latex Paint

Isikhukhula se-latex Paint kumele ibe nokuvumelana okuhle nge-emulsion polymer compound, ngaphandle kwalokho ifilimu lokuhlanganisa lizoba nenani elincane lokubuyisana, futhi lizokhiqiza i-agglomeration encane, futhi lizokhipha i-agglomeation, elizonciphisa i-viscomeriation, elizonciphisa ubungako bezinhlayiyana. Ukhula luzoshintsha icala le-emulsion. Isibonelo, i-cationic sikhulu izoba nomphumela ongaphenduki ku-anionic emulsifier ukuze wephule i-emulsion. Isikhukala esihle sopende we-latex kumele sibe nalezi zinto ezilandelayo:

1. Umthamo ophansi nokuvuleka okuhle

2. Ukuqina okuhle kwesitoreji, akukho ukuncishiswa kwe-viscosity ngenxa yesenzo sama-enzyme, futhi akukho ukuncishiswa kwe-visa

I-3, ukugcinwa kwamanzi okuhle, akunangqondo bubble bubble

4. Ayikho imiphumela emibi kwizakhiwo zamafilimu ezinjengokumelana nokukhuphuka, isicwebezelisi, ukucasha amandla nokumelana kwamanzi

I-5

Ubuchwepheshe obukhulayo be-latex Paint yisilinganiso esibalulekile sokuthuthukisa ikhwalithi ye-latex futhi yehlise 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, i-swerener kanye ne-pigment esongisa ukuqina komkhiqizo, yehlisa i-agglomeraling, yenza ifilimu lokupenda bushelelezi futhi bushelelezi, futhi lenze ne-latex peint 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 kakhulu, futhi upende we-latex uqweqwe nge-HEC ine-Pseudoplazity, ngakho-ke izindlela zokwakha ezifana nokuxubha, ukugibela, ukugcwalisa, nokufafaza kube nezinzuzo zokusindisa izisebenzi, akukho lula. I-HEC inokuthuthukiswa kombala okuhle kakhulu. Kunokubi okuhle kakhulu ngabalingisi abaningi kanye nama-beinders, okwenza ukuthi kwakwazi ukwakha upende we-latex ngokuguquguquka kombala omuhle kakhulu nokuqina. Ukuguquguquka okusetshenziselwa ukwakhiwa, yi-ether engeyona eye-ionic. Ngakho-ke, ingasetshenziswa ebangeni elibanzi le-PH (2 ~ 12), futhi lingahlanganiswa nezakhi ze-General Tatex Paints ezifana nemibala esebenzayo, izengezo, usawoti oncibilikayo noma ama-electrolyte.

Akukho mphumela omubi kwifilimu yokuhlanganisa. Ngoba isixazululo samanzi e-hec sinezici ezisobala zokungezwani kwamanzi, akulula ukugcwala ngesikhathi sokukhiqiza nokwakha, kanye nokuthambekela kwezimbobo zentaba-mlilo kanye nama-mainholes aphansi.

Ukuqina okuhle kwesitoreji. Enqubweni yokugcina yesikhathi eside, ukungafani kanye nokumiswa kwe-pigment kungagcinwa, futhi ayikho inkinga yombala ontantayo nokuqhakaza. Lapho kunesendlalelo esincane samanzi endaweni yokupenda futhi 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-topcoat enkulu kapende osuselwa emanzini nayo ingasebenzisa i-HEC.

Njengamanje, abakhulu abasetshenziswa ku-Teatex Peatives ephezulu ye-latex ephezulu basemadolobheni angeniswa yi-HEC kanye nama-acrylic acrymers (kufaka phakathi ama-polymer, ama-homopolymer noma i-copolymer emulsion mkhulu we-acrylic acid ne-methacrylic acid).

I-Hydroxyethyl cellulose ingasetshenziselwa

1. Njenge-glue ehlakazayo noma yokuvikela

Ngokuvamile, i-HEC enokubonakala kwama-MPA ayi-10 kuye kwangama-30 asetshenziswa. I-HEC efinyelela ku-300MPA S ingasetshenziswa ngokuhlanganiswa ne-anionic noma i-cationic surficractants, futhi umphumela wokuhlakazeka ungcono. Inani lesethenjwa ngokuvamile lingu-0.05% wesisindo se-monomer.

2, njengomuntu omkhulu

Sebenzisa i-15000MPA. Umthamo wesethenjwa we-Heevosity Highkusity engenhla ngaphezulu s u-0,5 kuya ku-1% wesisindo esiphelele sokuhlanganiswa kwe-latex, kanye nenani le-PVC lingafinyelela cishe ngo-60%. E-latex Paint, i-HEC ye-20PA, isetshenzisiwe, kanye nezici ezahlukahlukene zopende we-latex zihamba phambili. Izindleko zokumane usebenzise i-HEC ngenhla kwe-30o00pa.S ziphansi. Kodwa-ke, izinga lokulinganisa nezinye izici ze-latex Paint azilungile. Ngokombono wezidingo zekhwalithi kanye nokwehliswa kwezindleko, kungcono ukusebenzisa i-medium ne-helcosity ephakeme ephezulu ndawonye.

I-3. Indlela yokufaka eTatex Paint

I-HEC ephethwe ingaphezulu ingangezwa ku-powder eyomile noma ngefomu elinotshani. I-powder eyomile ingezwe ngqo ekugayeni kwe-pigment. I-PH yendawo yokungezwa kufanele ibe ngu-7 noma iphansi. Izakhi ze-alkaline ezinjengabahlakazo zingangezwa ngemuva kokuthi i-hec ifakwe futhi yahlakazeka ngokuphelele. I-Slurry eyenziwe nge-HEC kufanele ihlanganiswe ibe yi-slurry ngaphambi kokuthi i-HEC iye saba nesikhathi esanele sokuhlanza futhi sigqinsiwe esimweni esingabonakali. I-HEC Slurries nayo ingalungiswa ngama-glycol asuselwa kuma-ejenti asuselwa ku-glycol.

4. Anti-isikhutha sopende we-latex

Ama-biodegres we-hec ancibilikayo we-hec lapho evezwa isikhunta esikhethekile ku-cellulose kanye nokutholakala kwayo. Ukungeza ukulondolozwa ukupenda wedwa akwanele, zonke izinto kumele zibe yi-enzyme mahhala. Izimoto zokukhiqiza zopende we-latex kumele zigcinwe zihlanzekile futhi zicocekile, futhi yonke imishini kumele ihlale inzalo njalo nge-Steam 0.5% isixazululo se-mercury.