{"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":"kaip-pasigaminti-putojima-mazinancia-priemone","status":"publish","type":"post","link":"https:\/\/defoamingagent.net\/lt\/how-to-make-defoaming-agent\/","title":{"rendered":"Kaip pasigaminti put\u0173 \u0161alinimo priemon\u0119"},"content":{"rendered":"

Kaip pasigaminti put\u0173 \u0161alinimo priemon\u0119<\/h1>\n

Dangos pl\u0117vel\u0117se susidariusios putos gali sukelti pavir\u0161iaus defekt\u0173, pavyzd\u017eiui, \u017euvy\u010di\u0173, krateri\u0173 ar skylu\u010di\u0173. Kad tai nepasikartot\u0173, formuluotojai naudoja priedus nuo put\u0173 susidarymo ir putojim\u0105 ma\u017einan\u010dius priedus, ta\u010diau jiems parinkti ir \u012fvertinti reikia i\u0161sami\u0173 \u017eini\u0173 apie j\u0173 veikimo mechanizm\u0105 skirtingose dang\u0173 sistemose.<\/p>\n

Veiksmingas put\u0173 \u0161alintojas turi b\u016bti tirpus putojan\u010dioje terp\u0117je, greitai \u012fsiskverbti \u012f put\u0173 lameles ir greitai pasiskirstyti palei duj\u0173 ir skys\u010dio s\u0105saj\u0105.<\/p>\n

Polidimetilsiloksanas (PDMS)<\/h2>\n

PDMS yra ekonomi\u0161ka, biologi\u0161kai suderinama med\u017eiaga, kuri\u0105 galima pla\u010diai naudoti mikrofluidikoje. J\u0105 galima pritvirtinti prie polimer\u0173, stiklo ir metalini\u0173 komponent\u0173 ir taip suformuoti \u012fterptinius \u012ftaisus; ji gali b\u016bti naudojama kaip elektroosmosin\u0117 siurbimo membrana ir net modeliuojama naudojant fotorezistori\u0173, kad b\u016bt\u0173 suformuoti mikrofluidiniai kanalai.<\/p>\n

Siekiant i\u0161spr\u0119sti \u0161i\u0105 problem\u0105, PDMS galima oksiduoti naudojant deguonies plazm\u0105, tod\u0117l jo pavir\u0161iuje atsiveria hidroksilo grup\u0117s, kurios reaguodamos su sililo chlorido garais sudaro galines grupes, su kuriomis reaguoja putok\u0161liai. D\u0117l to su \u0161iuo pavir\u0161iumi sureagavusios putojimo med\u017eiagos ma\u017eiau putoja ir slopina putojim\u0105 nei tradiciniai silikoniniai putojimo priedai, be to, jos yra netoksi\u0161kos, lengvai disperguojamos ir termi\u0161kai stabilios, palyginti su analogi\u0161kais silikoniniais priedais.<\/p>\n

Silikoniniai aliejai<\/h2>\n

Silikonini\u0173 aliej\u0173 putojimo mechanizmas priklauso nuo specifinio vandens ir silikonin\u0117s alyvos savitojo svorio skirtum\u0173, nes d\u0117l didesnio vandens ir silikonin\u0117s alyvos savitojo svorio jie nusk\u0119sta stiklak\u016bnio ertm\u0117se, o d\u0117l ma\u017eesnio silikonin\u0117s alyvos savitojo svorio jie pl\u016bduriuoja, sukurdami vadinam\u0105sias pl\u016bdrumo j\u0117gas, kurios kelia juos \u012f vir\u0161\u0173.<\/p>\n

Medicinin\u0117s paskirties silikoniniai aliejai gali b\u016bti veiksminga putojim\u0105 ma\u017einanti priemon\u0117, nes yra lengvesni u\u017e vanden\u012f ir kei\u010dia pavir\u0161iaus \u012ftempim\u0105, tod\u0117l put\u0173 burbuliukai sprogsta. Be to, jie netoksi\u0161ki ir lengvai tirpsta vandeniniuose tirpaluose.<\/p>\n

Silikono pagrindu pagamintoms putojim\u0105 ma\u017einan\u010dioms med\u017eiagoms reikia didel\u0117s koncentracijos silikon\u0173, kurie gali b\u016bti toksi\u0161ki ir kenkti \u017emoni\u0173 sveikatai, o augaliniai aliejai, pavyzd\u017eiui, simondsij\u0173 aliejus, pasi\u017eymi pana\u0161iomis putojim\u0105 ma\u017einan\u010diomis savyb\u0117mis, ta\u010diau j\u0173 veiksmingumas daug ma\u017eesnis; be to, d\u0117l ma\u017eo vandens kiekio juose dispersija yra sud\u0117tingesn\u0117 nei tik\u0117tasi.<\/p>\n

Mineraliniai aliejai<\/h2>\n

Mineralin\u0117s alyvos yra bespalviai, bekvapiai auk\u0161tesni\u0173j\u0173 alkan\u0173, gaunam\u0173 i\u0161 mineralini\u0173 \u0161altini\u0173, mi\u0161iniai, kurie susidaro kaip \u0161alutiniai produktai perdirbant \u017eali\u0105 naft\u0105 \u012f naftos produktus. Istori\u0161kai jie taip pat buvo vadinami balt\u0105ja arba parafino alyva d\u0117l pavadinimo netikslumo, kuris atspind\u0117jo tai, kad prekybininkams da\u017enai nereik\u0117jo ar nenor\u0117jo tiksliai \u017einoti kiekvienos mineralin\u0117s alyvos, kuri buvo parduodama ar naudojama kaip prekybos prek\u0117, sud\u0117ties (Merriam-Webster pirm\u0105 kart\u0105 \u017eod\u012f \"mineralin\u0117 alyva\" pavartojo 1771 m.!).<\/p>\n

Mineralin\u0117 alyva gali b\u016bti toliau rafinuojama pramonin\u0117ms reikm\u0117ms, siekiant pa\u0161alinti priedus, kurie gali b\u016bti kenksmingi \u017emoni\u0173 maistui, ir taip gaunamas rafinuotas mineralinis tepalas, tinkamas maisto produktams ir farmacijos gaminiams, kurie gali liestis su maistu, \u012fskaitant bet kokias galimas atsitiktinio s\u0105ly\u010dio su maistu problemas.<\/p>\n

Maistui skirtos mineralin\u0117s alyvos paprastai yra beskon\u0117s ir bekvap\u0117s vandenyje tirpios alyvos, kurios puikiai apsaugo nuo korozijos, tod\u0117l jas saugu naudoti tiesioginio s\u0105ly\u010dio su oda metu. Be to, jie padeda i\u0161vengti dehidratacijos, nes veikia kaip apsauginis barjeras, ribojantis transepidermin\u012f vandens netekim\u0105.<\/p>\n

Vandenyje tirpus putok\u0161lis<\/h2>\n

Vandenyje tirp\u016bs putok\u0161liai pasi\u017eymi puikiomis putojimo savyb\u0117mis ir gali b\u016bti pagaminti sumai\u0161ius polieteriu modifikuot\u0105 organin\u012f silicio jungin\u012f su \u017eemesniaisiais alkoholiais, pavir\u0161inio aktyvumo med\u017eiagomis ir silicio dioksidu. Palyginti su tradicin\u0117mis mineralin\u0117mis alyvomis, \u0161is putok\u0161lis pasi\u017eymi i\u0161ankstin\u0117s dispersijos privalumais ir reikalauja ma\u017eiau energijos, kad j\u012f b\u016bt\u0173 galima \u012fterpti \u012f dang\u0173 sistemas.<\/p>\n

Putojim\u0105 ma\u017einanti med\u017eiaga i\u0161lieka netirpi putojan\u010dioje terp\u0117je ir u\u017ekerta keli\u0105 glaud\u017eiam molekuli\u0173 susijungimui pl\u0117vel\u0117s pavir\u0161iuje, taip neleisdama pavir\u0161inio aktyvumo med\u017eiagoms, stabilizuojan\u010dioms put\u0173 susidarym\u0105, atkurti pl\u0117vel\u0117s elastingumo d\u0117l Marangoni efekto ir taip u\u017ekirsti keli\u0105 put\u0173 susidarymui. Be to, putojim\u0105 ma\u017einan\u010dios med\u017eiagos veikia skatindamos skystos pl\u0117vel\u0117s nutek\u0117jim\u0105 i\u0161 put\u0173 burbuliuk\u0173, tod\u0117l jie sprogsta.<\/p>\n

\"putojim\u0105<\/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\/lt\/wp-json\/wp\/v2\/posts\/50","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/defoamingagent.net\/lt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/defoamingagent.net\/lt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/lt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/lt\/wp-json\/wp\/v2\/comments?post=50"}],"version-history":[{"count":4,"href":"https:\/\/defoamingagent.net\/lt\/wp-json\/wp\/v2\/posts\/50\/revisions"}],"predecessor-version":[{"id":65,"href":"https:\/\/defoamingagent.net\/lt\/wp-json\/wp\/v2\/posts\/50\/revisions\/65"}],"wp:attachment":[{"href":"https:\/\/defoamingagent.net\/lt\/wp-json\/wp\/v2\/media?parent=50"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/defoamingagent.net\/lt\/wp-json\/wp\/v2\/categories?post=50"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/defoamingagent.net\/lt\/wp-json\/wp\/v2\/tags?post=50"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}