{"id":50,"date":"2025-04-16T09:40:31","date_gmt":"2025-04-16T09:40:31","guid":{"rendered":"http:\/\/defoamingagent.net\/?p=50"},"modified":"2025-04-22T10:04:23","modified_gmt":"2025-04-22T10:04:23","slug":"kuidas-teha-vahutamisvahendit","status":"publish","type":"post","link":"https:\/\/defoamingagent.net\/et\/how-to-make-defoaming-agent\/","title":{"rendered":"Kuidas teha vahutamisvahendit"},"content":{"rendered":"

Kuidas teha vahutamisvahendit<\/h1>\n

Vahu moodustumine kattekihis v\u00f5ib p\u00f5hjustada pinnadefekte, nagu kalasilmad, kraatrid v\u00f5i n\u00f5elaaugud. Selle \u00e4rahoidmiseks kasutavad formuleerijad vahutamisvastaseid ja vahutamisvastaseid lisandeid, kuid nende valik ja hindamine n\u00f5uab p\u00f5hjalikke teadmisi nende toimemehhanismidest erinevates katetes\u00fcsteemides.<\/p>\n

Efektiivne vahutamisvahendaja peab olema vahutavas keskkonnas lahustuv, tungima kiiresti vahulamellidesse ja levima kiiresti piki gaasi ja vedeliku piirpinda.<\/p>\n

Pol\u00fcdimet\u00fc\u00fclsiloksaan (PDMS)<\/h2>\n

PDMS on \u00f6konoomne, bioloogiliselt kokkusobiv materjal, mida kasutatakse mikrofluidikas mitmel otstarbel. Seda saab kinnitada pol\u00fcmeeride, klaasi ja metallkomponentide k\u00fclge, et moodustada sisseehitatud seadmeid; seda saab kasutada elektroosmootilise pumpamise membraanina ja isegi mustritena, kasutades fotoresisti, et moodustada mikrofluidikakanaleid.<\/p>\n

Selle probleemi lahendamiseks saab PDMS-i oks\u00fcdeerida hapnikuplasma abil, avades selle pinnal h\u00fcdroks\u00fc\u00fclr\u00fchmad, mis reageerivad sil\u00fc\u00fclkloriidiaurudega, moodustades l\u00f5ppr\u00fchmi, millega vahutamisvahendid reageerivad. Selle tulemusena on selle pinnaga reageerinud vahutamisvahendid v\u00e4hem vahutamist ja inhibeerimist kui traditsioonilised silikoonist vahutamislisandid, lisaks on nad mittem\u00fcrgised, kergesti dispergeeritavad ja termiliselt stabiilsed v\u00f5rreldes oma silikoonist vastastega.<\/p>\n

Silikoon\u00f5lid<\/h2>\n

Silikoon\u00f5lide vahutamismehhanism tugineb vesivedeliku ja silikoon\u00f5li vahelistele erisuse erinevustele, kusjuures vesivedeliku suurem erisuse t\u00f5ttu vajub see klaasi\u00f5\u00f5nsustes, samas kui silikoon\u00f5li v\u00e4iksem erisus p\u00f5hjustab selle h\u00f5ljumist, tekitades nn ujuvust, mis t\u00f5stab seda \u00fclespoole.<\/p>\n

Meditsiinilised silikoon\u00f5lid v\u00f5ivad olla t\u00f5husad vahutamisvahendid, kuna nad on veest kergemad ja muudavad pindpinevust, mis p\u00f5hjustab vahumullide l\u00f5hkemist. Lisaks on nad mittetoksilised ja kergesti lahustuvad vesilahustes.<\/p>\n

Silikoonip\u00f5hised vahutamisvastased ained n\u00f5uavad silikoonide suurt kontsentratsiooni, mis v\u00f5ib olla m\u00fcrgine ja kahjulik inimese tervisele, samas kui taimsetel \u00f5lidel, nagu jojoba\u00f5li, on sarnane vahutamisvastane v\u00f5ime, kuid palju v\u00e4iksema t\u00f5hususega; lisaks muudab nende madal veesisaldus dispergeerimise oodatust keerulisemaks.<\/p>\n

Mineraal\u00f5lid<\/h2>\n

Mineraal\u00f5lid on mineraalsetest allikatest saadud v\u00e4rvitu ja l\u00f5hnatu k\u00f5rgema astme alkaanide segu, mida toodetakse toornafta t\u00f6\u00f6tlemisel naftatoodeteks k\u00f5rvalsaadusena. Ajalooliselt tunti neid ka valge v\u00f5i parafiin\u00f5li nime ebat\u00e4psuse t\u00f5ttu, mis peegeldab, et sageli ei olnud kaupmeestel vaja v\u00f5i soovinud t\u00e4pselt teada iga mineraal\u00f5li koostist, mida m\u00fc\u00fcdi v\u00f5i kasutati kaubana (Merriam-Webster dateerib s\u00f5na \"mineral oil\" esimest kasutamist 1771. aastasse!).<\/p>\n

Mineraal\u00f5li saab t\u00f6\u00f6stuslikuks kasutamiseks edasi rafineerida, et eemaldada lisandid, mis v\u00f5ivad olla inimtoidule kahjulikud, ja toota rafineeritud mineraalset m\u00e4\u00e4rdeainet, mis sobib toiduainete ja farmaatsiatoodete jaoks, mis v\u00f5ivad toiduga kokku puutuda, sealhulgas v\u00f5imalike juhusliku toiduga kokkupuute korral.<\/p>\n

Toiduainekvaliteediga mineraal\u00f5lid on \u00fcldiselt maitseta ja l\u00f5hnatu vees lahustuvad \u00f5lid, mis pakuvad suurep\u00e4rast korrosioonikaitset, mist\u00f5ttu on nende otsene kokkupuude nahaga ohutu. Lisaks sellele aitavad nad hoida kuivamist eemal, toimides kaitsva barj\u00e4\u00e4rina, mis piirab trans-epidermaalset veekaotust.<\/p>\n

Vees lahustuv vahendi<\/h2>\n

Vees lahustuv vahutamisvahend pakub suurep\u00e4raseid vahutamisomadusi ja seda saab valmistada, segades pol\u00fceetriga modifitseeritud orgaanilist r\u00e4ni\u00fchendit madalamate alkoholide, pindaktiivsete ainete ja r\u00e4nidioksiidiga. V\u00f5rreldes traditsiooniliste mineraal\u00f5lidega pakub see vahutamisvahendaja eeliseid eelisdispersiooni ja n\u00f5uab v\u00e4hem energiat pinnakattes\u00fcsteemidesse lisamiseks.<\/p>\n

Vahu\u00e4rastusained toimivad, j\u00e4\u00e4des lahustumatuks vahutavasse keskkonda ja takistades molekulide tihedat seost kile pinnal, takistades seel\u00e4bi vahu stabiliseerivate pindaktiivsete ainete taastamist kile elastsuse taastamisel Marangoni efekti kaudu ja seega vahu moodustumise v\u00e4ltimist. Lisaks sellele toimivad vahutamisvahendid, soodustades vedeliku kilest vahumullide \u00e4ravoolu, nii et need l\u00f5hkevad.<\/p>\n

\"vahutamisvahend\"<\/p>","protected":false},"excerpt":{"rendered":"

How to Make Defoaming Agent Foam formation in coating films can cause surface defects such as fisheyes, craters or pinholes […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[3],"tags":[],"class_list":["post-50","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/posts\/50","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/comments?post=50"}],"version-history":[{"count":4,"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/posts\/50\/revisions"}],"predecessor-version":[{"id":65,"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/posts\/50\/revisions\/65"}],"wp:attachment":[{"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/media?parent=50"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/categories?post=50"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/defoamingagent.net\/et\/wp-json\/wp\/v2\/tags?post=50"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}