Vahu juhtimine on pinnakatte t\u00f5hususe v\u00f5tmeaspekt, kuid t\u00f5husa vahutusvahendi valimine v\u00f5ib osutuda teatud rakenduste puhul keeruliseks.<\/p>\n
Fluorsilikoon\u00f5li kombineeriti akr\u00fc\u00fclkopol\u00fcmeeri vahutusvahendi (ACD), pentanooni ja v\u00e4rvilahusti\u00f5liga (kvalifitseeritud toode nr 200) proportsioonides 2%, 8% ja 25%, kasutades mehaanilist v\u00f5i kunstlikku segamist, et luua vahutusvahendi \u00fchend.<\/p>\n
Vahu\u00e4rastusvahendeid kasutatakse vahumullide lahustamiseks, v\u00e4hendades pindpinevust ja piiripindade vahelist pinget, ning need v\u00f5ivad olla vedelad, pulbrilised v\u00f5i emulsioonid. Neid kasutatakse laialdaselt paljudes rakendustes, sealhulgas v\u00e4rvide ja pinnakattevahendite puhul, et v\u00e4ltida augud, paberitootmises t\u00f5husaks t\u00f6\u00f6tlemiseks, naftapuurimist\u00f6\u00f6del, reoveepuhastusjaamades, samuti v\u00e4rvieemaldus- ja puhastusvahendites.<\/p>\n
Vedelad vahutamisvahendid kasutavad mineraale, taime\u00f5lisid ja vahasid kui vedelaid vahutamisvahendeid, et v\u00e4hendada pindpinevust. Pol\u00fcdimet\u00fc\u00fclsiloksaan - mida tavaliselt nimetatakse dimetikooniks - on eriti v\u00f5imas silikooni t\u00fc\u00fcpi materjalist valmistatud vahtude eemaldaja; need vahtude eemaldajad toimivad ka t\u00f5husate settimisvastaste ja reoloogiakontrollijatena.<\/p>\n
Pulbrilised vahutamisvahendid kasutavad h\u00fcdrofoobseid r\u00e4nidioksiidi osakesi ja muid peeneid tahkeid osakesi vahumullide lahustamiseks erinevatel temperatuuridel, pakkudes t\u00f5husaid vahutamisvahendeid erinevateks olukordadeks.<\/p>\n
Emulsioonip\u00f5hised vahutamisvahendid kasutavad pol\u00fcet\u00fcleeni, rasvalkoholi v\u00f5i muid pindaktiivseid aineid, et dispergeerida omavahel segatud vedelikke dispersioonilahusteks. Need vahutamisvahendid on ideaalsed veep\u00f5histe s\u00fcsteemide jaoks.<\/p>\n
Vahut\u00f5rjevahendid koosnevad tavaliselt vedelikus dispergeeritud h\u00fcdrofoobsetest ainetest, mis p\u00f5hjustavad mullikilede l\u00f5hkumist ja v\u00e4hendavad pindpinevust, mist\u00f5ttu mullid purunevad kergemini.<\/p>\n
Silikoonist vahutamisvahendid on parim valik, kui tegemist on vahutamisvahendiga, mis aitab parandada tootmise t\u00f5husust ja tootekvaliteeti, v\u00e4hendades j\u00e4\u00e4tmeid, muutes protsessid t\u00f5husamaks ja suurendades segamise t\u00f5husust.<\/p>\n
Vahu\u00e4rastusained v\u00f5ivad kaitsta m\u00e4\u00e4rdeaineid ka korrosiooni eest, parandades samal ajal nende stabiilsust ja vastupidavust. On olemas mitmesuguseid vahutamisvahendeid, sealhulgas silikoon-, mittesilikoon- ja pol\u00fceetervahendid, millest iga\u00fchel on oma spetsiifiline rakendus; \u00fcks selline vahutamisvahendi segu sisaldab silikoonist vahutamisvahendit koos mittelenduva mittesilikooniga, mis on m\u00f5eldud k\u00f5rge vahutamisn\u00f5uetega kulumisvastaste h\u00fcdraulika\u00f5lide jaoks - ideaalne kulumisvastaste h\u00fcdraulika\u00f5lide jaoks, millel on \u00f5hu eraldamise omadused; suurep\u00e4rane vahutamisv\u00f5ime, pakkudes samas v\u00e4ikest kulu, madalat lenduvust ja paremat ladustamisstabiilsust, et kasutada k\u00f5rge vahutamisn\u00f5uetega kulumisvastastes h\u00fcdraulika\u00f5lides v\u00f5rreldes nende vastavate \u00f5lidega, millel on k\u00f5rge vahutamisv\u00f5ime.<\/p>\n
Vahuainet sisaldav masterbatch on kergekaaluliste plastide lahutamatu komponent, mis parandab j\u00f5udlust ja kasutatavust, aidates tootjatel v\u00e4hendada toote tihedust, ohustamata seejuures olulisi omadusi, nagu struktuuriline terviklikkus v\u00f5i vastupidavus. Selle tulemusel saavad ettev\u00f5tted v\u00e4hendada m\u00e4rkimisv\u00e4\u00e4rselt transpordikulusid, parandades samal ajal t\u00f6\u00f6tlemiskiirust ja v\u00e4hendades materjalikasutust.<\/p>\n
Vahtumisvastased ained ja vahutamisvastased ained toimivad vahu tekkimist p\u00e4rssides ja olemasolevaid mullid lahustades, surudes t\u00f5husalt vahu tekkimist maha. Neid tuleb manustada \u00f5iges kontsentratsioonis; liiga palju v\u00f5ib destabiliseerida pihustuslahust, samas kui liiga v\u00e4he ei suru vahtu \u00fcldse maha.<\/p>\n
Vahendi eemaldajad koosnevad tavaliselt mitteioonilisest pindaktiivsest ainest, silikoonpindaktiivsest ainest v\u00f5i p\u00f5llukultuuride \u00f5likontsentraadist. Pinnale kandmisel purustavad nad \u00f5hus olevad veepiisad, nii et need hajuvad \u00fchtlaselt ja kiiresti. Teised tavalised vahutajad on munavalgud, vadakuvalgud ja spaanvalgud; pindaktiivsed ained, mis v\u00e4hendavad mullide vahelist pindpinevust; ja niisutajad, mis aitavad s\u00e4ilitada niiskust.<\/p>","protected":false},"excerpt":{"rendered":"
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