Ipeyinti ye-Latex (ekwabizwa ngokuba yipeyinti esekwe emanzini) luhlobo lwepeyinti ngamanzi njengeSolvent, esetyenziselwa ukuhombisa iindonga, ukhuseleko kunye nezinye iindawo. Ifomula yepeyinti ye-Latex ihlala iqulethe i-polymer emulsion, i-pigment, ifilitha, izongezo kunye nezinye izithako. Phakathi kwabo,I-HYDROXYTYL ILANDILONE (Hec)I-tickener ebalulekileyo kwaye isetyenziswe ngokubanzi kwipeyinti ye-Latex. I-hec ayinakuphucula nje i-viscofity kunye ne-RUOOOLOGY YOPROTT, kodwa iphucula intsebenzo yefilimu yepeyinti.
1. Iimpawu ezisisiseko ze-hec
I-hec yi-polymer ye-pullymer ye-warlymer eguqulweyo kwi-sellulose enezinto ezintle, ukumiswa kunye neempawu zokwenza ifilimu. I-molecular yayo ye-molecular iqulathe amaqela e-hydroxethyl, eyenza ukuba ichithe amanzi kwaye yenze isisombululo se-viscofity ephezulu. I-HEC ine-hydrophicity eqinileyo, eyenza ukuba idlale indima yokuzinzisa, ihlengahlengise i-ratheeology kunye nokuphucula ukusebenza kwefilimu kwipeyinti yepeyinti.
2. Unxibelelwano phakathi kwe-hec kunye ne-polymer emulsion
Inxalenye ephambili yepeyinti ye-upelx yi-polymer emulsion (efana ne-acrylic acid okanye i-ithoyli-vinyl acetate ye-enulformer ye-enulsion), ecacisa ifilimu ephambili kwifilimu yepeyinti. Unxibelelwano phakathi kweThainCel®uc Emolsion ibonakaliswa ikakhulu kwezi zinto zilandelayo:
Ukuphuculwa kokuzinza: Hec, njenge-gicker, inokunyusa i-viscofity yepeyinti ye-Latex kwaye incedise ukuzinza uzinzise amasuntswana. Ingakumbi kwindawo yokujonga i-polymer ephantsi, ukongezwa kwe-HEC kunganciphisa ukuntywila kwee-evotions amasuntswana kunye nokuphucula uzinzo logcino lwepeyinti.
Ummiselo we-RTOOIL: I-HEC inokuhlengahlengisa iipropathi ze-ROOOOOOOOLOTER yepeyinti ye-Latex, ukuze ihambele phambili ukusebenza ngcono ngexesha lokwakha. Umzekelo, ngexesha lenkqubo yokupeyinta, i-HEC inokuphucula ipropathi yokutyibilika yepeyinti kwaye iphele ukugxotha okanye ukuqhubela phambili. Ukongeza, i-HEC inokulawula ukubuyiselwa kwepeyinti kwaye iphucule ukufana kwefilimu yepeyinti.
Ukuphuculwa kwentsebenzo yokudibana: Ukongezwa kwe-HEC kunokuphucula ukuguquguquka, ubugqwetha kunye nokuxhathisa ukuthuthu. Isakhiwo se-molecular se-hec sinokunxibelelana nomthengisi wePolymer ukonyusa ubume befilimu yepeyinti, esenza ukuba iphumelele kwaye ngenxa yoko ukuphucula ukuqina kwayo.
3. Unxibelelwano phakathi kwe-hec kunye ne-pigments
I-pigments kwipeyinti ye-Latex ihlala ibandakanya i-pigning pignments (njenge-tetanium diokside, i-mica powder, njl njl) kunye ne-pig. Unxibelelwano phakathi kwe-Hec kunye ne-pigments luboniswa ikakhulu kwezi zinto zilandelayo:
Ukusasazeka kwe-pigment: Iziphumo ezihlekisayo ze-HEC yonyusa i-viscofity yepeyinti ye-Latex, enokusasaza ngcono amasuntswana e-pigments kwaye kuthintelwe ukwahlula-hlulwa kwe-piggregared okanye i-pigrafipmetion. Ingakumbi kumasuntswana amnandi e-pigment, isakhiwo sePolymer se-Hec sinokusongela kumphezulu we-pigloment ukukhusela i-ageglomeration yamasuntswana e-pigment, ngokuphucula ipeyinti.
Amandla okubopha phakathi kwe-pigment kunye nefilimu ehlekisayo:HecIimolekyuli zinokuvelisa i-adsorption okanye inyathelo leekhemikhali kunye nomphezulu we-pigment, ukuphucula amandla okubopha phakathi kwe-pigment kunye nefilimu ehlekisayo, kwaye uphephe umphezulu wefilimu yokuphambana. Ingakumbi kwipeyinti ephezulu ye-Latex, i-HEC inokuphucula ngokufanelekileyo ukumelana kwemozulu kunye ne-UV ichasile i-pigment kwaye yandise ubomi benkonzo yokuhamba.
4. Unxibelelwano phakathi kwe-HeC kunye neefilitha
Ezinye iifilitha (ezinjenge-calcium carbonate, i-talcum powder, iminerali ye-Silc), njl.njl. Unxibelelwano phakathi kwe-HEC kunye neefilitha lubonakalisiwe kwezi zinto zilandelayo:
Ukumiswa kweefilimu: i-hec inokugcina abathengisi bongeze kwipende ka-Latex kwi-distyrion ye-iyunifomu nge-fickorm ngokusebenzisa isiphumo se-ficketion, ukuthintela iifilimu ezivela. Ngee-finlers ezinobukhulu obukhulu, isiphumo esibi seHec sibaluleke kakhulu, nto leyo enokugcina uzinzo lwepeyinti.
I-gloss kunye nokuchukumisa ukuqeqeshwa: ukongezwa kweefilimu kudla ngokuchaphazela i-gloss kunye nokuchukumisa okhethekileyo. I-Nuncel®cc inokuphucula ukusebenza kwendlela yokudibana ngokuhlengahlengiswa nokucwangciswa kweefilimu. Umzekelo, ukusasazeka kwe-fallings i-filler kuyanceda ukunciphisa uburharha bomgangatho wokukraba kunye nokuphucula ukungcola kunye ne-gloss ifilimu yepeyinti.
I-5. Unxibelelwano phakathi kwe-hec kunye nezinye izongezelelo
Ifomula yepeyinti ye-FEEX ikwaquka ezinye ii-songertives, ezinjengee-defoamers, izinto ezigciniweyo, iiarhente ezimanzi, njl. Njl.
Unxibelelwano phakathi kweDefoamers kunye ne-HEC: Umsebenzi weeDefoamers kukunciphisa amaqamza okanye igwebu kwipeyinti, kunye neempawu eziphezulu ze-HEC zinokuchaphazela isiphumo see-DOFOAmers. I-hec egqithisileyo isenokwenza kube nzima kuDefoamer ukuba asuse ngokupheleleyo i-foam, ngenxa yoko ichaphazela umgangatho womphezulu wepeyinti. Ke ngoko, isixa se-hec esongezwa kufuneka siququzelwe ngenani le-Defoamer yokufezekisa okona kulungileyo.
Unxibelelwano phakathi kwe-orsevatives kunye ne-HEC: Indima yalondolozo kukuthintela ukukhula kwee-microorganisms kwipeyinti kwaye kwandise ixesha lokugcina. Njenge-polymer yendalo, ubume be-hec ye-hec inokusebenzisana nezixhobo ezithile, ezichaphazela isiphumo sayo sokulwa nokuchasana. Ke ngoko, kubalulekile ukukhetha indawo yokuhlala ehambelana nehek.
Indima yeHecKwipeyinti yokupeyinta i-Latex ayikabinamanzi kuphela, kodwa ukudibana kwayo kunye nokudibana kwePolymer Ukuvela, imibala, iifilitha kunye nezinye izinto ezongezelelekileyo ezichaza ukusebenza kwepeyinti ye-REEX. I-Nuinccel®ckic inokuphucula iipropathi ze-ritheovic yepeyinti ye-testx, ziphucule ukusasazeka kwee-pigments kunye neefilitha, kunye nokonyusa iipropathi zoomatshini kunye nokuqina kwengcedo. Ukongeza, isiphumo esilinganayo se-hec kunye nezinye izongezelelo nazo zinefuthe elibalulekileyo ekugcinweni kogcino, ukusebenza kokwakha kunye nokubonakala kwepeyinti ye-Latex. Ke ngoko, kuyilo lwefomula ye-Latex, ukhetho olufanelekileyo lwe-HEC kunye nexabiso lokunxibelelana kunye nezinye izithako zendlela yokuphucula ukusebenza kwepeyinti ye-REEX.
Ixesha leposi: NgoDE-28 ukuya ku-2424