Zithini izicelo ze-surfactants kwi-coating?

Ii-surfactantsludidi lweekhompawundi ezinezakhiwo zeemolekyuli ezikhethekileyo ezinokuhambelana kwiindawo ezisebenzisanayo okanye kwiindawo eziphezulu, nto leyo etshintsha kakhulu uxinzelelo lomphezulu okanye iipropati ze-interfacial. Kwishishini leengubo, ii-surfactants zidlala indima ebalulekileyo kwizicelo ezahlukeneyo, kubandakanya i-emulsification, ukumanzisa, ukusasazwa, i-defoaming, i-leveling, i-antistatic effects, nokunye, ngaloo ndlela kuphucula uzinzo, ukusebenza kwesicelo, kunye nomgangatho wokugqibela weengubo.

1. Ukudibanisa

Kwiingubo ezisekelwe kwi-emulsion (ezifana neengubo ezisetyenziswa emanzini), ii-emulsifiers zibalulekile. Zinciphisa uxinzelelo phakathi kwe-oyile kunye nezigaba zamanzi, zivumela ukwakheka kwee-emulsions ezizinzileyo ezivela kwizinto ezingenakuxutywa. Ii-emulsifiers eziqhelekileyo ziquka ii-surfactants ze-anionic (umz., i-sodium dodecylbenzene sulfonate) kunye nee-surfactants ezingezizo ze-ionic (umz., ii-polyoxyethylene ethers).

2. Ukumanzisa kunye nokuSasazwa koMbala​

Ukusasazeka ngokulinganayo kweepigment kwiingubo kuchaphazela ngokuthe ngqo ukungabonakali, uzinzo, kunye nokusebenza kombala. Izinto ezimanzisa nezisasaza zinciphisa uxinzelelo phakathi kweepigment kunye nee-binder, zikhuthaza ukumanzisa okufanayo kunye nokusasazeka okuzinzileyo ngelixa zithintela ukuhlangana kunye nokuzinza.

3. Ukulawula ukungcoliswa kwesikhumba kunye nokulawula igwebu

Ngexesha lokuveliswa nokusetyenziswa, ii-coating zivame ukuvelisa amaqamza, nto leyo enokuphazamisa ukubonakala kwefilimu kunye nokusebenza kwayo. Ii-defoamers (umz., ezisekwe kwi-silicone okanye kwi-mineral oil-based) ziphazamisa izakhiwo ze-foam, zinciphisa ukwakheka kwamaqamza kwaye ziqinisekisa ukuba umphezulu we-coating ogudileyo nongenaziphene.

4. Uphuculo lokulinganisa​

Ipropati yokulinganisa iingubo imisela ukuguda kunye nokubonakala kwefilimu eyomileyo. Iiarhente zokulinganisa zisebenza ngeendlela ezimbini eziphambili:

• Ukunciphisa uxinzelelo lomphezulu: Uqinisekisa ukuba usasazeka ngokulinganayo kwiindawo ezingaphantsi komhlaba, kunciphisa iziphene ezifana nexolo le-orenji okanye iikreyithingi.

• Ukulawula umphunga wesolvent: Kwandisa ixesha lokuhamba kwamanzi, okuvumela ukuba i-coating ilingane ngokwaneleyo ngaphambi kokuba inyibilike.

5. Ukusebenza okuchasene nokunganyakazi​

Kwizinto ze-elektroniki, ukupakisha, kunye nezinye iindawo, ukufakelwa kunokuqokelelana kweentlawulo ezingashukumiyo ngenxa yokungqubana, nto leyo ebeka umngcipheko wokhuseleko. Iiarhente ezichasene nokufakelwa (umz., ii-cationic surfactants) zifunxa umswakama ongqongileyo ukuze zenze umaleko oqhubayo kumphezulu wokufakelwa, nto leyo eququzelela ukusasazwa kwentlawulo kunye nokunciphisa iingozi ze-electrostatic.

6. Ukhuseleko lwe-Antimicrobial kunye ne-Fungicidal​

Kwiindawo ezifumileyo, iingubo zikhula ngokukhawuleza kwiintsholongwane, nto leyo ekhokelela ekuwohlokeni kwefilimu. Iiarhente zokulwa neentsholongwane kunye nefungi (umz., ii-quaternary ammonium compounds) zithintela ukwanda kweentsholongwane, zandisa ubomi beshelufu kunye nokuqina kwenkonzo yeengubo.

7. Ukuphucula i-Gloss kunye nokuphucula ukutyibilika​

Ezinye iingubo zifuna iindawo ezikhazimlayo okanye ezigudileyo (umz., ifenitshala okanye ezogqunywe kwimizi-mveliso). Izinto eziphucula ukukhanya kunye nezongezo zokutyibilika (umz., iiwax okanye iisilicone) ziphucula ukukhanya kwefilimu kwaye zinciphisa ukungqubana komphezulu, ziphucula ukumelana nokuguguleka kunye neempawu zokuchukumisa.

Ii-surfactants zisebenza iindima ezininzi kushishino lwee-coating, ukusuka ekuphuculeni ukusebenza kwe-processing ukuya ekuphakamiseni iipropati zokugqibela zefilimu, zonke zisebenzisa amandla azo okulawula i-interfacial. Ngokuphucuka kwee-coating ezinobuhlobo nendalo kunye nokusebenza okuphezulu, ii-surfactants ezintsha, ezisebenzayo, nezingenatyhefu ziya kuhlala ziphambili kuphando lwetekhnoloji yee-coating kwixesha elizayo.