Foaming agents yog ib chav kawm ntawm cov khoom siv ntxiv uas muaj peev xwm tsim cov foams ruaj khov hauv cov kua, thiab lawv tau siv dav hauv cov khoom noj, tshuaj ntxuav tes, tshuaj pleev ib ce, thiab kev lag luam. Lawv cov ntsiab lus tseem ceeb feem ntau suav nrog surfactants, auxiliary foaming agents, thiab stabilizers. Surfactants ua haujlwm tseem ceeb; los ntawm kev txo qis qhov nro ntawm cov kua, lawv pab tsim cov pa roj- npuas npuas hauv nruab nrab. Raws li lawv cov keeb kwm thiab cov khoom siv tshuaj, surfactants tuaj yeem faib dav rau hauv hom anionic (xws li sodium dodecyl sulfate), cationic hom (xws li, quaternary ammonium ntsev), tsis yog - hom ionic (xws li, fatty alcohol ethoxylates), thiab zwitterionic hom (xws li, amino acid derivatives).
Ntxiv rau cov surfactants, cov neeg ua npuas dej feem ntau suav nrog cov neeg ua haujlwm ua npuas dej- xws li glycerol, sucrose, lossis protein-cov khoom siv raws li- uas ua haujlwm los txhim kho lub ntim thiab lub neej ntev ntawm cov npuas dej. Cov neeg ua haujlwm pabcuam no txhim kho cov neeg siv kev paub dhau los los ntawm kev hloov kho cov kua viscosity thiab cov yam ntxwv ntawm cov pa roj-kua interface, yog li ua rau cov npuas dej tiv taus ntau dua. Piv txwv li, nyob rau hauv kev lag luam khoom noj khoom haus, cov proteins thiab polysaccharides nquag ua hauj lwm raws li ntuj foaming agents; conversely, nyob rau hauv cov tshuaj pleev ib ce sector, cov khoom xyaw xws li glycerol los yog txiv maj phaub roj derivatives yog ua hauj lwm los refine cov kev ntxhib los mos thiab fineness ntawm ua npuas ncauj.
Foaming agents nquag muaj cov stabilizers los yog thickeners- xws li xanthan cov pos hniav, guar gum, los yog sodium carboxymethyl cellulose- tsim los tswj cov txheej txheem ntawm cov npuas dej thiab txuas nws lub neej. Cov khoom xyaw no ua kom muaj kev ruaj ntseg ua npuas ncauj los ntawm kev ua kom cov kua nplaum viscosity thiab txhim kho nws cov khoom rheological, yog li tiv thaiv tus neeg npuas hauv cov kua los ntawm coalescing thiab rupturing. Los ntawm kev sib koom ua ke cov khoom sib txawv no, cov neeg ua npuas dej muaj peev xwm ua tau zoo thoob plaws ntau hom kev siv, kom ntseeg tau tias muaj ntau ntawm cov npuas dej thiab lub sijhawm ntev ntawm kev ua tau zoo.
