S\u00f3pi veldur verulegum vandam\u00e1lum \u00ed i\u00f0na\u00f0arferlum. Hann veldur g\u00f6llum \u00ed yfirbor\u00f0sme\u00f0fer\u00f0um og gerir fyllingu \u00ed \u00edl\u00e1tum \u00f3hagkv\u00e6ma. Framlei\u00f0endur \u00feurfa a\u00f0 fjarl\u00e6gja s\u00e1pu \u2013 mikilv\u00e6gt ferli sem dregur \u00far og kemur \u00ed veg fyrir myndun s\u00e1pu \u00ed i\u00f0na\u00f0arl\u00f6gum til a\u00f0 vi\u00f0halda g\u00e6\u00f0um v\u00f6ru og h\u00e1marka rekstur.<\/p>\n
Efnafr\u00e6\u00f0ileg b\u00e6tiefni sem kallast fro\u00f0uhemjar hj\u00e1lpa til vi\u00f0 a\u00f0 draga \u00far \u00f3\u00e6skilegri fro\u00f0u. \u00deessi efni virka me\u00f0 \u00feremur a\u00f0fer\u00f0um: fr\u00e1lo\u00f0un, teygju-\/br\u00faun og \u00f3st\u00f6\u00f0ugleika. Algengir fro\u00f0uhemjar eru me\u00f0al annars \u00f3leysanlegar ol\u00edur, p\u00f3l\u00edd\u00edmet\u00fdls\u00edl\u00f3x\u00e1nar, \u00e1kve\u00f0in alk\u00f3h\u00f3l, stear\u00f6t og gl\u00fdk\u00f3lar. Hverjum fro\u00f0uhemja \u00fearf vanda\u00f0a samsetningu til a\u00f0 henta kerfinu sem hann er nota\u00f0ur \u00ed.<\/p>\n
\u00deessi grein mun hj\u00e1lpa \u00fe\u00e9r a\u00f0 skilja v\u00edsindin \u00e1 bak vi\u00f0 fro\u00f0umyndun og hvernig mismunandi affro\u00f0unarefni virka. \u00de\u00fa f\u00e6r\u00f0 hagn\u00fdtar lei\u00f0beiningar um hvernig \u00e1 a\u00f0 velja r\u00e9tta lausn fyrir i\u00f0na\u00f0arvandam\u00e1lin \u00fe\u00edn. Efni\u00f0 mun veita \u00fe\u00e9r nau\u00f0synlega \u00feekkingu um \u00e1rangursr\u00edka affro\u00f0un, hvort sem \u00fe\u00fa ert a\u00f0 gl\u00edma vi\u00f0 st\u00f6\u00f0ug fro\u00f0uvandam\u00e1l e\u00f0a vilt kynnast undirliggjandi kenningu.<\/p>\n
I\u00f0na\u00f0arafskumun krefst \u00feess a\u00f0 skilja hvernig skum myndast og varir. Skumkerfi dreifir loftb\u00f3lum \u00ed v\u00f6kva og er varmad\u00fdnam\u00edskt \u00f3st\u00f6\u00f0ugt. \u00deessi skum hafa s\u00fdnt \u00f3tr\u00falega endingu \u00ed i\u00f0na\u00f0arums\u00f3knum.<\/p>\n
Yfirbor\u00f0svirk efni (surfactantar) eru nau\u00f0synleg fyrir fro\u00f0umyndun og st\u00f6\u00f0ugleika. \u00deessi amph\u00edf\u00edlu sameindir innihalda b\u00e6\u00f0i vatnselsku (h\u00fddrof\u00edlu) og vatnsf\u00fdsku (h\u00fdf\u00f3b\u00edlu) hluta sem gera \u00feeim kleift a\u00f0 lo\u00f0a vi\u00f0 loft-v\u00f6kva vi\u00f0m\u00f3t. Surfactantar dreifast \u00ed lausnir og berast a\u00f0 vi\u00f0m\u00f3tinu milli mynda\u00f0ra kjarna og v\u00f6kva. \u00deau b\u00faa til b\u00f3lur me\u00f0 \u00fev\u00ed a\u00f0 draga \u00far vi\u00f0m\u00f3tstoginu og koma \u00ed veg fyrir a\u00f0 b\u00f3lur sameinist \u00e1\u00f0ur en \u00fe\u00e6r n\u00e1 st\u00f6\u00f0ugleika.<\/p>\n
Yfirbor\u00f0svirk efni n\u00e1 h\u00e1marksfro\u00f0umyndunarh\u00e6fni vi\u00f0 millistigsstyrk. Yfirbor\u00f0svirk efni geta umbreytt j\u00f6fnu b\u00f3lubylgju \u00ed frumul\u00edfa fro\u00f0u, og b\u00f3lust\u00e6r\u00f0in fer eftir Reynolds-t\u00f6lu opnunarholunnar. Yfirbor\u00f0i\u00f0 ver\u00f0ur teygjanlegur<\/strong>, sem hj\u00e1lpar b\u00f3lum a\u00f0 standast afl\u00f6gun og v\u00e9lr\u00e6nan \u00fer\u00fdsting.<\/p>\n Nokkrir byggingareiningar mynda fro\u00f0u. Lamellur<\/strong> eru \u00feunnar v\u00f6kvahimnur sem a\u00f0skilja loftb\u00f3lur. \u00derj\u00e1r lamellur m\u00e6tast og mynda r\u00e1sir sem kallast H\u00e1sl\u00e9ttum\u00f6rk<\/strong>, sem tengjast vi\u00f0 horn me\u00f0 109,5\u00b0 horni. Fro\u00f0an breytist \u00far \u201cvotri\u201d \u00ed \u201c\u00feurrari\u201d \u00feegar v\u00f6kvi flyst fr\u00e1 veggjum loftb\u00f3lfanna a\u00f0 \u00feessum Plateau-m\u00f6rkum. \u00deetta gerir loftb\u00f3lfurnar fj\u00f6lhli\u00f0a \u00e1 m\u00f6rkunum.<\/p>\n Frumuger\u00f0 fro\u00f0unnar \u2013 st\u00e6r\u00f0, vegg\u00feykkt og \u00fe\u00e9ttleiki \u2013 hefur \u00e1hrif \u00e1 s\u00fdnilegan \u00fe\u00e9ttleika og st\u00f6\u00f0ugleika hennar. V\u00f6kvafr\u00e1dr\u00e1ttur fro\u00f0unnar \u00e1kvar\u00f0ar marga e\u00f0liseiginleika.<\/p>\n \u00deeir Gibbs-Marangoni-\u00e1hrif<\/strong> \u00dej\u00f3nar sem lykilst\u00f6\u00f0ugleikakerfi. Yfirbor\u00f0sspennu\u00ferep myndast \u00feegar lamella teygist e\u00f0a truflast, sem dregur \u00far yfirbor\u00f0svirkaefnainnihaldi \u00e1 \u00feeim sta\u00f0. \u00deessi \u00ferep skapa snertifl\u00e6\u00f0i sem endurdreifir yfirbor\u00f0svirkaefninu um filmu.<\/p>\n \u00deessi sj\u00e1lfgr\u00e6\u00f0andi ferill virkar \u00e1 s\u00e9rstakan h\u00e1tt. Beittur kraftur myndar \u00feunn sv\u00e6\u00f0i \u00e1 yfirbor\u00f0i b\u00f3lna, sem eykur yfirbor\u00f0sflatarm\u00e1l \u00e1 me\u00f0an \u00fea\u00f0 minnkar styrk yfirbor\u00f0svirka efnis. Spennu\u00ferep dregur yfirbor\u00f0svirka efni a\u00f0 \u00feunnum sv\u00e6\u00f0um og f\u00e6r undirliggjandi v\u00f6kval\u00f6g til a\u00f0 endurheimta filmu. Hreinir v\u00f6kvar fro\u00f0ast ekki \u00fev\u00ed \u00feessi ferill krefst yfirbor\u00f0svirkra efna.<\/p>\n Gibbs-Marangoni-stu\u00f0ullinn m\u00e6lir hlutfall hli\u00f0l\u00e6gra og normalhreyfihra\u00f0a. H\u00e6rri gildi lei\u00f0a til meiri breytileika yfirbor\u00f0sspennu, sem eykur endurdreifingu yfirbor\u00f0sakt\u00edf efna og dregur \u00far l\u00edkum \u00e1 fro\u00f0ubrotnun.<\/p>\n B\u00f3lgudempandi efni virka me\u00f0 fl\u00f3knum e\u00f0lis- og efnafr\u00e6\u00f0ilegum ferlum til a\u00f0 berjast gegn st\u00f6\u00f0ugleika fro\u00f0u. Form\u00falager\u00f0armenn \u00feurfa a\u00f0 skilja \u00feessa ferla til a\u00f0 velja r\u00e9tt efni sem virka \u00ed mismunandi notkun.<\/p>\n Dewetting-ferli\u00f0 er lykilregla \u00ed v\u00edsindum um b\u00f3luey\u00f0ingu. \u00deetta ferli krefst \u00feess a\u00f0 snertihorni\u00f0 milli b\u00f3luey\u00f0iefnisins og frey\u00f0andi v\u00f6kva s\u00e9 meira en 90\u00b0 \u00feegar m\u00e6lt er \u00ed gegnum vatnsa\u00f0fer\u00f0ina. Frey\u00f0andi v\u00f6kvinn getur ekki votta\u00f0 yfirbor\u00f0 b\u00f3luey\u00f0iefnisins vi\u00f0 \u00feetta mikilv\u00e6ga horn. \u00deetta skapar fullkomin skilyr\u00f0i til a\u00f0 ey\u00f0ileggja fro\u00f0u. Beinskarpar, vatnsf\u00e6lilegar agnir au\u00f0velda \u00feetta ferli. \u00de\u00e6r stinga \u00ed gegnum fro\u00f0u\u00adhimnuna og mynda \u201cbr\u00fa\u201d yfir hana. V\u00f6kvinn dregst \u00fe\u00e1 til baka fr\u00e1 yfirbor\u00f0i agnanna og br\u00fdtur filmu vi\u00f0 \u00feriggja fasa snertil\u00ednuna.<\/p>\n Defoamer-dropar brj\u00f3ta fyrst gegnum og mynda br\u00fdr yfir fro\u00f0u\u00feynnurnar \u00ed br\u00faarmyndunar- og teygjunarkerfinu. \u00deessar br\u00fdr ver\u00f0a veikbur\u00f0a sta\u00f0ir \u00ed fro\u00f0ustrukturinum. Br\u00fau\u00f0 defoamer-dropi ver\u00f0ur vi\u00f0kv\u00e6masti hluti \u00feynnunnar. Jafnvel \u00f6rl\u00edtil teygjukraftur \u00e1 defoamer-dropanum getur valdi\u00f0 \u00fev\u00ed a\u00f0 hann brotni. Auk \u00feess hindra fro\u00f0uvarnarefni Marangoni-\u00e1hrifin\u2014sj\u00e1lfheildandi kerfi sem heldur fro\u00f0u st\u00f6\u00f0ugri. Fro\u00f0uvarnarefni sem dreifist yfir yfirbor\u00f0 lamellu myndar yfirbor\u00f0sspennu\u00ferep. \u00deetta \u00ferep vinnur gegn e\u00f0lisl\u00e6gum Marangoni-fl\u00e6\u00f0i fro\u00f0unnar. Andst\u00e6\u00f0a fl\u00e6\u00f0i\u00f0 \u00feynnir lamelluna vi\u00f0 dropann og veikjar fro\u00f0uger\u00f0ina enn frekar.<\/p>\n Sum fro\u00f0udempandi efni breyta \u00fev\u00ed hvernig yfirbor\u00f0svirka efni dreifast \u00ed fro\u00f0ukerfinu. Fro\u00f0udempandi sameindir taka yfir gas-v\u00f6kva vi\u00f0m\u00f3ti\u00f0 me\u00f0 samkeppnisuppt\u00f6ku. \u00deetta \u00fdtir yfirbor\u00f0svirka efnunum sem valda fro\u00f0u \u00fat \u00far vi\u00f0m\u00f3tinu. Enn fremur geta sum fro\u00f0udempandi efni leyst upp yfirbor\u00f0svirka efni\u00f0 sem veldur fro\u00f0u. \u00deetta dregur \u00far styrk \u00feess og gerir veggi loftb\u00f3lna veikari. Ferli\u00f0 dregur \u00far yfirbor\u00f0s\u00feoli b\u00f3lufilma\u2014mikilv\u00e6gs eiginleika fyrir st\u00f6\u00f0ugleika fro\u00f0u. B\u00f3lufilmur brotna au\u00f0veldlega undir v\u00e9lr\u00e6nu \u00e1lagi ef \u00feol \u00feeirra er ekki n\u00e6gilegt.<\/p>\n Tveir lykil\u00fe\u00e6ttir \u00e1kvar\u00f0a hversu vel v\u00f6kvafjarl\u00e6gjandi efni virka: innr\u00e1sarstu\u00f0ullinn (E) og \u00fatbrei\u00f0slustu\u00f0ullinn (S). Innr\u00e1sarstu\u00f0ullinn s\u00fdnir hvort dropi af fjarl\u00e6gjandi efni geti komist inn \u00ed fro\u00f0ulag. Til \u00feess \u00fearf E > 0. Brei\u00f0ingastu\u00f0ullinn r\u00e6\u00f0ur \u00fev\u00ed hversu vel fro\u00f0u\u00feurrkandi efni\u00f0 dreifist yfir filmu\u00adyfirbor\u00f0i\u00f0 \u00feegar \u00fea\u00f0 er komi\u00f0 inn. Til \u00feess a\u00f0 \u00fea\u00f0 virki \u00fearf S > 0. B\u00e1\u00f0ir stu\u00f0larnir stafa af vi\u00f0m\u00f3tstogum milli \u00feriggja fasa: v\u00f6kva sem \u00e1 a\u00f0 \u00feurrka fro\u00f0u, fro\u00f0u\u00feurrkandi efnisins og lofts. Vark\u00e1r form\u00faluger\u00f0 hj\u00e1lpar fro\u00f0u\u00feurrkandi efnum a\u00f0 n\u00e1 sem bestu gildum fyrir \u00feessa stu\u00f0la. \u00deetta tryggir a\u00f0 \u00feau virki vel \u00ed jar\u00f0vinnslu.<\/p>\n I\u00f0na\u00f0ar-fro\u00f0u\u00feurrkandi efni eru f\u00e1anleg \u00ed mismunandi form\u00falum sem mi\u00f0a a\u00f0 s\u00e9rt\u00e6kum fro\u00f0uvandam\u00e1lum \u00ed i\u00f0na\u00f0i af \u00f6llum st\u00e6r\u00f0um. Nokkrir \u00fe\u00e6ttir \u00e1kvar\u00f0a r\u00e9tt val \u00e1 fro\u00f0u\u00feurrkandi efni, svo sem tegund fro\u00f0u, vinnsluskilyr\u00f0i og kr\u00f6fur lokaafur\u00f0ar.<\/p>\n Silik\u00f3nfro\u00f0uhemjar eru p\u00f3l\u00fdmer me\u00f0 k\u00edsilbakhlaup sem framlei\u00f0endur b\u00faa til sem ol\u00edubera e\u00f0a vatnsbundnar emulgeringar. \u00deessir \u00f6flugu efnavopnar innihalda vatnsf\u00e6lilega k\u00edsil \u00ed s\u00edlik\u00f3n\u00edol\u00edu \u00e1samt emulgeringarefnum sem dreifast hratt \u00ed fro\u00f0umyndandi mi\u00f0lum. \u00deau virka fr\u00e1b\u00e6rlega til a\u00f0 \u00fatr\u00fdma yfirbor\u00f0sfro\u00f0u og losa fanga\u00f0a loft, sem gerir \u00feau fullkomin fyrir \u00f3vatnslaus kerfi eins og vinnslu hr\u00e1v\u00f6ruol\u00edu. Matv\u00e6lavinnslust\u00f6\u00f0var nota \u00feessa fro\u00f0uhemjara vegna \u00feess a\u00f0 \u00feeir haldast st\u00f6\u00f0ugir vi\u00f0 mismunandi a\u00f0st\u00e6\u00f0ur og eru f\u00e1anlegir \u00ed s\u00e9rh\u00e6f\u00f0um matv\u00e6laflokksform\u00falum. Kostna\u00f0arhagkv\u00e6mni \u00feeirra kemur \u00ed lj\u00f3s vi\u00f0 styrk \u00e1 bilinu 1\u2013200 ppm.<\/p>\n Ol\u00edubundnar form\u00falur nota bur\u00f0arefni eins og steinefnaol\u00edu, hv\u00edta ol\u00edu e\u00f0a jurtaol\u00edu sem haldast a\u00f0skilin fr\u00e1 fro\u00f0umi\u00f0linum. \u00deessir \u00f6flugu fro\u00f0udemparar blanda vatnsf\u00e6lilegum v\u00f6xum (ethylene bis stearamide, paraf\u00ednum, fitus\u00fdrualk\u00f3h\u00f3lum) e\u00f0a vatnsf\u00e6lilegri k\u00edsil til a\u00f0 virka betur. Sameinu\u00f0 \u00e1hrif vatnsf\u00e6lilegra agna og ol\u00eda skapa \u201cpin-\u00e1hrif\u201d sem n\u00e1 d\u00fdpra inn og \u00f3gna st\u00f6\u00f0ugleika hra\u00f0ar. Papp\u00edrsverksmi\u00f0jur, fr\u00e1veituhreinsist\u00f6\u00f0var og framlei\u00f0endur h\u00fa\u00f0unarefna telja \u00feessa ol\u00edubundnu fro\u00f0uhemjara s\u00e9rstaklega gagnlega til a\u00f0 fjarl\u00e6gja yfirbor\u00f0sfro\u00f0u.<\/p>\n Vatnsbundnar form\u00falur blanda saman \u00f3l\u00ed\u00f0um ol\u00edum og vaxi \u00ed vatnsberum. \u00deessir fro\u00f0u\u00fej\u00f6pparar virka a\u00f0allega sem loftlosunart\u00e6ki me\u00f0 \u00fev\u00ed a\u00f0 losa fanga\u00f0 loft frekar en a\u00f0 beina a\u00f0 yfirbor\u00f0sfro\u00f0u. \u00deeir innihalda steinefn- e\u00f0a jurtaol\u00edur \u00e1samt langke\u00f0ju\u00f0um fitus\u00f3l\u00f3lum, fitus\u00fdrus\u00e1pum e\u00f0a esterum. Notendur meta hreint pr\u00f3f\u00edl \u00feeirra sem skilur eftir sig l\u00e1gmarksleifar og skolar au\u00f0veldlega af. Emulsj\u00f3nin getur or\u00f0i\u00f0 \u00f3st\u00f6\u00f0ug vi\u00f0 \u00f6fgakenndar pH-a\u00f0st\u00e6\u00f0ur e\u00f0a h\u00e1a rafalk\u00f3la\u00fe\u00e9ttni.<\/p>\n Duftform\u00falur gegn fro\u00f0u virka eins og ol\u00edubundnar form\u00falur en nota agnabera eins og k\u00edsil. \u00deessir fro\u00f0uvarnarefni virkjast \u00feegar \u00feau blotna og virka vel \u00ed \u00feurrum kerfum eins og sementi, m\u00far og \u00fevottaefnum. XIAMETER APW-4248, s\u00edlikon-innihaldandi duft gegn fro\u00f0u, virkar einstaklega vel \u00ed \u00fevottaefnum \u00ed duftformi, jafnvel \u00ed litlu magni, \u00e1n \u00feess a\u00f0 virkni tapist vi\u00f0 geymslu. Framlei\u00f0endur geta au\u00f0veldlega blanda\u00f0 \u00feessum frj\u00e1lsfl\u00e6\u00f0andi kornum me\u00f0 \u00feurrbl\u00f6ndun, og \u00feau halda \u00e1hrifum s\u00ednum me\u00f0 mismunandi tegundum yfirbor\u00f0ssameinda, pH-gildum og \u00fevottahita.<\/p>\n EO\/PO (et\u00fdlenox\u00ed\u00f0\/pr\u00f3p\u00fdlenox\u00ed\u00f0) k\u00f3p\u00f3l\u00fdmer-fro\u00f0uhemjar koma fram sem ol\u00edur, vatnslausnir e\u00f0a emilsj\u00f3nir. \u00deeir leysa \u00fatfellingavandam\u00e1l \u00fe\u00f6kk s\u00e9 fram\u00farskarandi dreifingareiginleikum. DOWFAX DF-117, virkt 100% p\u00f3l\u00fdgl\u00fdk\u00f3l, st\u00fdrir fro\u00f0u \u00e1 \u00e1hrifar\u00edkan h\u00e1tt vi\u00f0 gr\u00e6nmetis\u00fevott, gerjun, papp\u00edrsme\u00f0fer\u00f0 og \u00ed byggingarefnum. Sk\u00fdjunarhitastig og notkunarhitastig hafa \u00e1hrif \u00e1 hversu vel EO\/PO-k\u00f3pol\u00fdmer virka sem fro\u00f0uhemjar \u2013 form\u00faluger\u00f0armenn \u00e6ttu a\u00f0 velja v\u00f6rur me\u00f0 sk\u00fdjunarhitastigi undir fyrirhugu\u00f0u notkunarhitastigi. \u00deessir fro\u00f0uhemjar bj\u00f3\u00f0a upp \u00e1 me\u00f0allega fro\u00f0ustj\u00f3rnun me\u00f0 betri blautniefnum og minni leifum en s\u00edlikon-bundnar lausnir.<\/p>\n A\u00f0 velja r\u00e9tt fro\u00f0u\u00feurrkunarlausn krefst \u00edtarlegrar pr\u00f3funar og sko\u00f0unar \u00e1 m\u00f6rgum breytum. \u00c1rangur \u00feinn r\u00e6\u00f0st af \u00fev\u00ed hversu vel \u00fe\u00fa \u00feekkir b\u00e6\u00f0i fro\u00f0u\u00feurrkunarefni\u00f0 og kerfi\u00f0 sem \u00fe\u00fa vilt me\u00f0h\u00f6ndla.<\/p>\n Pr\u00f3fanir \u00e1 fro\u00f0ustj\u00f3rnun virka best me\u00f0 sta\u00f0la\u00f0um a\u00f0fer\u00f0um. Ross-Miles-a\u00f0fer\u00f0in kannar hvernig fro\u00f0a myndast og helst st\u00f6\u00f0ug me\u00f0 \u00fev\u00ed a\u00f0 m\u00e6la h\u00e6\u00f0 fro\u00f0ustokks. D\u00fdnam\u00edsk fro\u00f0an greining fylgist me\u00f0 \u00fev\u00ed hvernig v\u00f6kvi rennur \u00fat, h\u00e6\u00f0 fro\u00f0u breytist og loftb\u00f3lur breytast \u00ed st\u00e6r\u00f0. \u00deessar breytingar s\u00fdna hversu st\u00f6\u00f0ug fro\u00f0an er. Pr\u00f3fanir \u00e1 fr\u00e1rennsli fro\u00f0u segja okkur margt um uppbyggingu fro\u00f0u. \u00de\u00e6r m\u00e6la hversu miki\u00f0 v\u00f6kvah\u00e6\u00f0 eykst \u00feegar fro\u00f0an brotnar ni\u00f0ur.<\/p>\n Pr\u00f3fun loftinnihalds er nau\u00f0synleg til a\u00f0 koma \u00ed veg fyrir yfirbor\u00f0sgalla og lagskilun \u00ed steypu og byggingarefnum. \u00der\u00fdstia\u00f0fer\u00f0ir veita skj\u00f3t og \u00e1rei\u00f0anleg ni\u00f0urst\u00f6\u00f0ur fyrir venju\u00feyngdar steypubl\u00f6ndur me\u00f0 \u00fev\u00ed a\u00f0 nota loftm\u00e6la sem losa \u00fejappa\u00f0 loft inn \u00ed steypukammer. Einnig er h\u00e6gt a\u00f0 nota r\u00famm\u00e1lsa\u00f0fer\u00f0ir me\u00f0 roll-a-meters. \u00de\u00e6r skola loftholr\u00fam \u00far bl\u00f6ndunni me\u00f0 is\u00f3pr\u00f3p\u00fdlalk\u00f3h\u00f3li. Munurinn \u00e1 v\u00f6kvastigum s\u00fdnir loftinnihaldi\u00f0.<\/p>\n Hitastigsbreytingar geta verulega haft \u00e1hrif \u00e1 virkni fro\u00f0uhemjandi efna me\u00f0 \u00fev\u00ed a\u00f0 breyta dreifingarformi \u00feeirra og yfirbor\u00f0seiginleikum. Flest fro\u00f0uhemjandi efni \u00feola ekki h\u00e1an hita vel og brotna ni\u00f0ur \u00feegar kerfi\u00f0 ver\u00f0ur of heitt. S\u00fdrustigi\u00f0 skiptir l\u00edka sk\u00f6pum \u2013 sum fro\u00f0uhemjandi efni sem virka fr\u00e1b\u00e6rlega vi\u00f0 hlutlaust s\u00fdrustig brotna ni\u00f0ur hra\u00f0ar \u00ed mj\u00f6g s\u00faru e\u00f0a bas\u00edsku umhverfi. \u00deess vegna skiptir \u00fea\u00f0 \u00f6llu m\u00e1li a\u00f0 velja fro\u00f0uhemjandi efni sem henta vi\u00f0 vi\u00f0eigandi s\u00fdrustig.<\/p>\n \u00d3l\u00edkir tegundir af fro\u00f0uhemjandi efnum endast \u00ed mismunandi t\u00edma. Sil\u00edkonbundnar tegundir endast yfirleitt \u00ed 12\u201324 m\u00e1nu\u00f0i, en ol\u00edubundnar og vatnsbundnar tegundir virka vel \u00ed 6\u201312 m\u00e1nu\u00f0i. Geymslua\u00f0st\u00e6\u00f0ur hafa mikil \u00e1hrif \u00e1 endingu \u00feeirra. Geymi\u00f0 fro\u00f0uhemjandi efni \u00e1 k\u00f6ldum, \u00feurrum st\u00f6\u00f0um, fjarri s\u00f3lskini og hita. Auk \u00feess hj\u00e1lpar a\u00f0 nota loft\u00fe\u00e9ttan \u00edl\u00e1t til a\u00f0 hindra loft og raka \u00ed a\u00f0 fl\u00fdta fyrir ni\u00f0urbroti.<\/p>\n Hra\u00f0asta lei\u00f0in til a\u00f0 velja fro\u00f0udempara byrjar \u00e1 \u00fev\u00ed a\u00f0 \u00feekkja n\u00e1kv\u00e6mlega fro\u00f0uvandam\u00e1li\u00f0 \u00feitt. Sko\u00f0a\u00f0u pH-gildi kerfisins, rekstrarhita, seigju, efnasamsetningu og hvernig fro\u00f0a myndast. A\u00f0 n\u00e1 samr\u00fdmanlegri jafnv\u00e6gi er lykilatri\u00f0i \u2013 fro\u00f0udrepandi efni\u00f0 \u00fearf a\u00f0 vera n\u00e6gilega \u00f3leysanlegt til a\u00f0 haldast sem dreif\u00f0ar dropur vi\u00f0 v\u00f6kva-loft vi\u00f0m\u00f3t, en blanda sig n\u00f3gu vel til a\u00f0 dreifast \u00e1n \u00feess a\u00f0 valda vandam\u00e1lum. Sker\u00f0ust\u00f6\u00f0ugleiki ver\u00f0ur s\u00e9rstaklega mikilv\u00e6gur \u00ed kerfum sem nota d\u00e6lur, h\u00e1hra\u00f0a bl\u00f6ndunart\u00e6ki e\u00f0a \u00fa\u00f0alokana.<\/p>\n Foam control er mikilv\u00e6gur \u00fe\u00e1ttur sem hj\u00e1lpar til vi\u00f0 a\u00f0 einfalda ferla og auka g\u00e6\u00f0i v\u00f6ru \u00ed i\u00f0na\u00f0arumhverfi. \u00cd \u00feessari grein h\u00f6fum vi\u00f0 sko\u00f0a\u00f0 fl\u00f3kna v\u00edsindin \u00e1 bak vi\u00f0 fro\u00f0umyndun, einkum hvernig yfirbor\u00f0svirk efni st\u00f6\u00f0ga loftb\u00f3lur me\u00f0 Gibbs-Marangoni-\u00e1hrifum. Me\u00f0 \u00fev\u00ed a\u00f0 skilja \u00feessa grunnv\u00e9lfr\u00e6\u00f0i getur\u00f0u vali\u00f0 og beitt fro\u00f0uhemjandi efni betur.<\/p>\n B\u00f3lgudempunarkerfi \u2013 fr\u00e1lo\u00f0un, br\u00faun- og teygja\u00e1hrif og \u00f3st\u00f6\u00f0ugleiki \u2013 vinna saman a\u00f0 \u00fev\u00ed a\u00f0 hemja fro\u00f0u \u00e1 mismunandi myndunarstigum. Hvert kerfi beinist a\u00f0 \u00e1kve\u00f0num eiginleikum fro\u00f0u, sem gerir val \u00e1 b\u00f3lgudempara a\u00f0 n\u00e1kv\u00e6mri v\u00edsindagrein fremur en tilg\u00e1tuv\u00edsindum.<\/p>\n \u00d3l\u00edk i\u00f0na\u00f0arumsvif krefjast einfaldlega s\u00e9rsni\u00f0inna lausna. Sil\u00edkonbundin antif\u00f3am-efni virka \u00e1hrifar\u00edkt \u00ed alls konar notkun, en ol\u00edubundnar form\u00falur skara fram \u00far vi\u00f0 a\u00f0 \u00fatr\u00fdma yfirbor\u00f0ss\u00f3pa. Vatnsbundnar lausnir bj\u00f3\u00f0a upp \u00e1 fram\u00farskarandi loftlosun me\u00f0 l\u00e1gmarks leifum. Duftkennd def\u00f3am-efni henta vel \u00ed sement- og \u00fevottaefnanotkun, en gl\u00fdk\u00f3lbundnar lausnir sameina h\u00f3flega def\u00f3aming-virkni vi\u00f0 betri blautn\u00e6mi.<\/p>\n \u00de\u00fa ver\u00f0ur a\u00f0 pr\u00f3fa vandlega \u00e1\u00f0ur en \u00fe\u00fa innlei\u00f0ir hva\u00f0a fro\u00f0ustj\u00f3rnunarlausn sem er. M\u00e6lingar \u00e1 fro\u00f0uh\u00e6\u00f0, fr\u00e1rennslispr\u00f3fanir og m\u00e6lingar \u00e1 lofti \u00ed fro\u00f0u veita d\u00fdrm\u00e6tar uppl\u00fdsingar um frammist\u00f6\u00f0u def\u00f3mers. S\u00fdrustigssvi\u00f0, hitast\u00f6\u00f0ugleiki og geymslu\u00feol hafa veruleg \u00e1hrif \u00e1 virkni \u00ed raunverulegum a\u00f0st\u00e6\u00f0um.<\/p>\n V\u00edsindi um fro\u00f0u\u00feurrkun \u00fer\u00f3ast st\u00f6\u00f0ugt eftir \u00fev\u00ed sem i\u00f0na\u00f0arferlar ver\u00f0a fl\u00f3knari. Form\u00faluger\u00f0armenn ver\u00f0a a\u00f0 vega samr\u00fdmanleika og \u00f3s\u00f3l\u00fdsanleika \u00feegar \u00feeir \u00fer\u00f3a n\u00fdjar lausnir. Fro\u00f0u\u00feurrkur sem virkar fullkomlega \u00ed einni notkun getur valdi\u00f0 alvarlegum vandam\u00e1lum \u00ed annarri.<\/p>\n \u00c1rangur \u00feinn r\u00e6\u00f0st af \u00fev\u00ed a\u00f0 velja r\u00e9tt fro\u00f0uhemlandi efni sem hentar tilteknum ferilsskilyr\u00f0um. \u00de\u00fa \u00e6ttir a\u00f0 huga a\u00f0 rekstrarst\u00e6r\u00f0um, efnafr\u00e6\u00f0ilegum samskiptum og frammist\u00f6\u00f0ukr\u00f6fum. R\u00e9tt fro\u00f0uhemlandi efni geta b\u00e6tt feriln\u00fdtingu, dregi\u00f0 \u00far g\u00f6llum og auki\u00f0 g\u00e6\u00f0i v\u00f6ru \u00ed \u00f6llum tegundum atvinnugreina.<\/p>","protected":false},"excerpt":{"rendered":" How Industrial Defoaming Actually Works: From Theory to Practice Foam creates major problems in industrial processes. It causes defects in […]<\/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-198","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/posts\/198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/comments?post=198"}],"version-history":[{"count":1,"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/posts\/198\/revisions"}],"predecessor-version":[{"id":199,"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/posts\/198\/revisions\/199"}],"wp:attachment":[{"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/media?parent=198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/categories?post=198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/defoamingagent.net\/is\/wp-json\/wp\/v2\/tags?post=198"}],"curies":[{"name":"vp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Foam lamellur og flatarmarksuppbygging<\/h3>\n
Gibbs-Marangoni-\u00e1hrif \u00ed st\u00f6\u00f0ugleika fro\u00f0u<\/h3>\n
Kjarnavirkni b\u00f3lgut\u00e6kjandi efna<\/h2>\n
Dewetting-ferli og snertivillihorn >90\u00b0<\/h3>\n
Br\u00faun-teygja og truflun Marangoni-fl\u00e6\u00f0is<\/h3>\n
\u00d3st\u00f6\u00f0ugleiki vegna uppt\u00f6ku yfirbor\u00f0svirkra efna<\/h3>\n
\u00datsk\u00fdring \u00e1 gegndr\u00e6ps- og \u00fatbrei\u00f0slust\u00f6\u00f0ugildum<\/h3>\n
Ger\u00f0ir i\u00f0na\u00f0arfro\u00f0u\u00feurrkara og notkunartilvik \u00feeirra<\/h2>\n
Silik\u00f3nubundi\u00f0 fro\u00f0uhemlandi fyrir h\u00e1afkastakerfi<\/h3>\n
Ol\u00edusvifdealandi efni me\u00f0 vaxi- e\u00f0a k\u00edsilb\u00e6tiefnum<\/h3>\n
Vatnsbundi\u00f0 antifoam-efni til losunar innbundins lofts<\/h3>\n
Duftkennd yfirbor\u00f0sl\u00e6kkandi efni \u00ed sement- og \u00fevottaefnaforritum<\/h3>\n
Loftb\u00f3luey\u00f0ir bygg\u00f0ir \u00e1 gl\u00fdk\u00f3li og EO\/PO-k\u00f3pol\u00fdmeri<\/h3>\n
Pr\u00f3fanir, f\u00ednstilling og \u00e1skoranir \u00ed notkun<\/h2>\n
S\u00f3pa h\u00e6\u00f0 og fr\u00e1rennslispr\u00f3funara\u00f0fer\u00f0ir<\/h3>\n
M\u00e6ling \u00e1 me\u00f0f\u00e6r\u00f0ri lofti me\u00f0 \u00fe\u00e9ttleikam\u00e6lum<\/h3>\n
Samr\u00e6mism\u00e1l var\u00f0andi pH-gildi og hitastig<\/h3>\n
St\u00f6\u00f0ugleiki form\u00falunnar og \u00e1hyggjur af geymslu\u00feoli<\/h3>\n
A\u00f0 velja r\u00e9ttan b\u00f3lguey\u00f0andi efni fyrir ferli\u00f0 \u00feitt<\/h3>\n
\u00c1lyktun<\/h2>\n