{"id":62986,"date":"2022-08-29T13:52:13","date_gmt":"2022-08-29T18:52:13","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/how-important-is-it-for-the-cleaning-fluid-to-have-low-surface-tension\/"},"modified":"2025-01-27T06:06:32","modified_gmt":"2025-01-27T11:06:32","slug":"how-important-is-it-for-the-cleaning-fluid-to-have-low-surface-tension","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/how-important-is-it-for-the-cleaning-fluid-to-have-low-surface-tension\/","title":{"rendered":"N\u00edzk\u00e9 povrchov\u00e9 nap\u011bt\u00ed \u010distic\u00edch roztok\u016f: kl\u00ed\u010d k efektivit\u011b?"},"content":{"rendered":"

N\u00edzk\u00e9 povrchov\u00e9 nap\u011bt\u00ed \u010distic\u00ed kapaliny je kl\u00ed\u010dov\u00fdm faktorem ovliv\u0148uj\u00edc\u00edm \u00fa\u010dinnost mnoha \u010distic\u00edch proces\u016f, zejm\u00e9na t\u011bch, kter\u00e9 vyu\u017e\u00edvaj\u00ed ultrazvuk. Jeho v\u00fdznam se odv\u00edj\u00ed od schopnosti kapaliny pronikat do drobn\u00fdch \u0161t\u011brbin a p\u00f3r\u016f, \u010d\u00edm\u017e se maximalizuje kontakt s ne\u010distotami a n\u00e1sledn\u00e1 jejich odstran\u011bn\u00ed. Bez n\u00edzk\u00e9ho povrchov\u00e9ho nap\u011bt\u00ed by mnoh\u00e9 \u010distic\u00ed metody byly zna\u010dn\u011b m\u00e9n\u011b efektivn\u00ed, ne-li zcela ne\u00fa\u010dinn\u00e9.<\/p>\n

Vliv povrchov\u00e9ho nap\u011bt\u00ed na sm\u00e1\u010den\u00ed povrchu<\/h3>\n

Povrchov\u00e9 nap\u011bt\u00ed je vlastnost kapaliny, kter\u00e1 se projevuje jako tendence minimalizovat sv\u016fj povrch. \u010c\u00edm vy\u0161\u0161\u00ed je povrchov\u00e9 nap\u011bt\u00ed, t\u00edm v\u00edce se kapalina "shlukuje" a h\u016f\u0159e se rozprost\u00edr\u00e1 po povrchu. U \u010distic\u00edch kapalin je naopak \u017e\u00e1douc\u00ed co nejlep\u0161\u00ed sm\u00e1\u010den\u00ed povrchu, aby se kapalina dostala do v\u0161ech z\u00e1kout\u00ed a \u00fa\u010dinn\u011b odstranila ne\u010distoty. N\u00edzk\u00e9 povrchov\u00e9 nap\u011bt\u00ed umo\u017e\u0148uje kapalin\u011b l\u00e9pe pronikat do mikroskopick\u00fdch trhlin a p\u00f3r\u016f, co\u017e je zvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00e9 p\u0159i \u010di\u0161t\u011bn\u00ed slo\u017eit\u00fdch mechanick\u00fdch sou\u010d\u00e1st\u00ed.<\/p>\n

\u00daloha povrchov\u00e9ho nap\u011bt\u00ed v ultrazvukov\u00e9m \u010di\u0161t\u011bn\u00ed<\/h3>\n

V ultrazvukov\u00e9m \u010di\u0161t\u011bn\u00ed hraje n\u00edzk\u00e9 povrchov\u00e9 nap\u011bt\u00ed kl\u00ed\u010dovou roli. Ultrazvukov\u00e9 vlny vytv\u00e1\u0159ej\u00ed v kapalin\u011b kavita\u010dn\u00ed bubliny, kter\u00e9 p\u0159i implozi uvol\u0148uj\u00ed energii a odstra\u0148uj\u00ed ne\u010distoty. Aby se tento proces uskute\u010dnil co nejefektivn\u011bji, je nutn\u00e9, aby kapalina co nejl\u00e9pe obklopovala a pronikala do ne\u010distot. Kapalina s vysok\u00fdm povrchov\u00fdm nap\u011bt\u00edm by se shlukovala a kavita\u010dn\u00ed bubliny by se nemohly efektivn\u011b tvo\u0159it v bl\u00edzkosti ne\u010distot, \u010d\u00edm\u017e by se sn\u00ed\u017eila \u00fa\u010dinnost \u010di\u0161t\u011bn\u00ed.<\/p>\n

Porovn\u00e1n\u00ed \u010distic\u00edch kapalin s r\u016fzn\u00fdm povrchov\u00fdm nap\u011bt\u00edm<\/h3>\n\n\n\n\n\n\n\n
\u010cistic\u00ed kapalina<\/th>\nPovrchov\u00e9 nap\u011bt\u00ed (mN\/m)<\/th>\n\u00da\u010dinnost \u010di\u0161t\u011bn\u00ed<\/th>\nPozn\u00e1mka<\/th>\n<\/tr>\n<\/thead>\n
Kapalina A<\/td>\n72<\/td>\nN\u00edzk\u00e1<\/td>\nVysok\u00e9 povrchov\u00e9 nap\u011bt\u00ed br\u00e1n\u00ed pronik\u00e1n\u00ed do p\u00f3r\u016f<\/td>\n<\/tr>\n
Kapalina B<\/td>\n35<\/td>\nSt\u0159edn\u00ed<\/td>\nLep\u0161\u00ed pronik\u00e1n\u00ed, ale st\u00e1le prostor pro zlep\u0161en\u00ed<\/td>\n<\/tr>\n
Kapalina C<\/td>\n20<\/td>\nVysok\u00e1<\/td>\nOptim\u00e1ln\u00ed povrchov\u00e9 nap\u011bt\u00ed pro efektivn\u00ed \u010di\u0161t\u011bn\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Dopl\u0148kov\u00e9 faktory ovliv\u0148uj\u00edc\u00ed \u00fa\u010dinnost \u010di\u0161t\u011bn\u00ed<\/h3>\n

Je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee n\u00edzk\u00e9 povrchov\u00e9 nap\u011bt\u00ed nen\u00ed jedin\u00fdm faktorem, kter\u00fd ovliv\u0148uje \u00fa\u010dinnost \u010distic\u00edho procesu. D\u016fle\u017eit\u00e9 jsou i dal\u0161\u00ed parametry, jako je nap\u0159\u00edklad viskozita kapaliny, pH, typ a koncentrace tenzid\u016f a samoz\u0159ejm\u011b i frekvence a intenzita ultrazvuku. V n\u011bkter\u00fdch p\u0159\u00edpadech m\u016f\u017ee b\u00fdt v\u00fdhodn\u00e9 pou\u017e\u00edt aditiva, kter\u00e1 sni\u017euj\u00ed povrchov\u00e9 nap\u011bt\u00ed a zlep\u0161uj\u00ed sm\u00e1\u010den\u00ed.<\/p>\n

Z\u00e1v\u011br<\/h3>\n

N\u00edzk\u00e9 povrchov\u00e9 nap\u011bt\u00ed \u010distic\u00ed kapaliny je nezbytn\u00e9 pro efektivn\u00ed \u010di\u0161t\u011bn\u00ed, zvl\u00e1\u0161t\u011b v p\u0159\u00edpadech, kdy je d\u016fle\u017eit\u00e9 proniknout do drobn\u00fdch p\u00f3r\u016f a \u0161t\u011brbin, nap\u0159\u00edklad p\u0159i ultrazvukov\u00e9m \u010di\u0161t\u011bn\u00ed. Volba \u010distic\u00ed kapaliny s optim\u00e1ln\u00edm povrchov\u00fdm nap\u011bt\u00edm je kl\u00ed\u010dov\u00e1 pro dosa\u017een\u00ed po\u017eadovan\u00fdch v\u00fdsledk\u016f a maximalizaci \u00fa\u010dinnosti cel\u00e9ho procesu. Komplexn\u00ed p\u0159\u00edstup, zahrnuj\u00edc\u00ed optimalizaci v\u0161ech relevantn\u00edch parametr\u016f, je z\u00e1rukou perfektn\u011b vy\u010di\u0161t\u011bn\u00fdch povrch\u016f.<\/p>\n","protected":false},"excerpt":{"rendered":"

N\u00edzk\u00e9 povrchov\u00e9 nap\u011bt\u00ed \u010distic\u00ed kapaliny je kl\u00ed\u010dov\u00fdm faktorem ovliv\u0148uj\u00edc\u00edm \u00fa\u010dinnost mnoha \u010distic\u00edch proces\u016f, zejm\u00e9na t\u011bch, kter\u00e9 vyu\u017e\u00edvaj\u00ed ultrazvuk. Jeho v\u00fdznam se odv\u00edj\u00ed od schopnosti kapaliny pronikat do drobn\u00fdch \u0161t\u011brbin a p\u00f3r\u016f, \u010d\u00edm\u017e se maximalizuje kontakt s ne\u010distotami a n\u00e1sledn\u00e1 jejich odstran\u011bn\u00ed. Bez n\u00edzk\u00e9ho povrchov\u00e9ho nap\u011bt\u00ed by mnoh\u00e9 \u010distic\u00ed metody byly zna\u010dn\u011b m\u00e9n\u011b efektivn\u00ed, ne-li zcela<\/p>\n","protected":false},"author":1,"featured_media":20135,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-62986","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/62986","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/comments?post=62986"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/62986\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/20135"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=62986"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=62986"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=62986"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}