{"id":926,"date":"2025-12-11T14:12:09","date_gmt":"2025-12-11T14:12:09","guid":{"rendered":"https:\/\/www.materialstests.com\/?p=926"},"modified":"2025-12-11T14:12:11","modified_gmt":"2025-12-11T14:12:11","slug":"adhesion-testers-for-paints-and-coatings","status":"publish","type":"post","link":"https:\/\/www.materialstests.com\/sk\/resources\/adhesion-testers-for-paints-and-coatings.html","title":{"rendered":"Tester pri\u013enavosti pre farby a n\u00e1tery"},"content":{"rendered":"

Tester plastov\u00fdch f\u00f3li\u00ed | pre farby a n\u00e1tery<\/h2>\n\n\n\n

Aby n\u00e1tery uspokojivo fungovali, musia pri\u013en\u00fa\u0165 k podkladu, na ktor\u00fd sa nan\u00e1\u0161aj\u00fa. Na ur\u010denie toho, ako dobre je n\u00e1ter pripevnen\u00fd k podkladu, mo\u017eno pou\u017ei\u0165 r\u00f4zne uzn\u00e1van\u00e9 met\u00f3dy. Medzi be\u017en\u00e9 meracie techniky patr\u00ed mechanick\u00e9 testovanie pri\u013enavosti, testovanie plastov alebo pou\u017eitie no\u017ea.<\/p>\n\n\n\n

Pochopenie adh\u00e9zie v n\u00e1teroch<\/h2>\n\n\n\n

Pri\u013enavos\u0165 je schopnos\u0165 n\u00e1teru - ako s\u00fa farby a laky - spoji\u0165 sa s podkladom (tzv. pri\u013enavos\u0165 substr\u00e1tu<\/strong>) alebo pri\u013en\u00fa\u0165 k viacer\u00fdm vrstv\u00e1m v syst\u00e9me (tzv. pri\u013enavos\u0165 medzi vrstvami<\/strong>). Aby n\u00e1tery fungovali uspokojivo, musia sa \u00fa\u010dinne sp\u00e1ja\u0165 s r\u00f4znymi podkladmi vr\u00e1tane kovu, bet\u00f3nu, dreva a \u010fal\u0161\u00edch.<\/p>\n\n\n\n

Met\u00f3dy sk\u00fa\u0161ania adh\u00e9zie<\/h3>\n\n\n\n

Sk\u00fa\u0161ka adh\u00e9zie vytiahnut\u00edm<\/h4>\n\n\n\n

Sk\u00fa\u0161kou adh\u00e9zie \u0165ahom sa kvantitat\u00edvne meria sila potrebn\u00e1 na oddelenie za\u0165a\u017eovacieho pr\u00edpravku (voz\u00edka alebo ty\u010de) od povlaku. Prenosn\u00e1 sk\u00fa\u0161ka na odtrhnutie tester pri\u013enavosti<\/strong><\/a> p\u00f4sob\u00ed na voz\u00edk st\u00e1le v\u00e4\u010d\u0161\u00edm za\u0165a\u017een\u00edm, a\u017e k\u00fdm sa voz\u00edk neodtrhne. Nameran\u00e1 sila - vyjadren\u00e1 v mega pascaloch (MPa) alebo libr\u00e1ch na \u0161tvorcov\u00fd palec (psi) - ud\u00e1va pevnos\u0165 povlaku v \u0165ahu. Touto met\u00f3dou sa riadia normy ako ASTM D4541\/D7234 a ISO 4624.<\/p>\n\n\n\n

Test adh\u00e9zie odtla\u010den\u00edm<\/h4>\n\n\n\n

Podobne ako pri sk\u00fa\u0161ke odtla\u010denia sa pri sk\u00fa\u0161ke adh\u00e9zie odtla\u010den\u00edm meria sila potrebn\u00e1 na odtla\u010denie b\u00e1biky (p\u00e4tice) od povrchu. Do stredov\u00e9ho otvoru v ka\u017edej b\u00e1bke sa vlo\u017e\u00ed kol\u00edk a p\u00f4sob\u00ed sa na \u0148u ru\u010dn\u00fdm alebo hydraulick\u00fdm tlakom, k\u00fdm sa neodpoj\u00ed.<\/p>\n\n\n\n

Test pri\u013enavosti no\u017eov<\/h4>\n\n\n\n

Tento subjekt\u00edvny test zah\u0155\u0148a rezanie p\u00edsmena \u201cX\u201d (s uhlom 30\u00b0 a\u017e 45\u00b0 medzi ramenami) do povlaku pomocou kuchynsk\u00e9ho no\u017ea a kovov\u00e9ho prav\u00edtka. Pomocou no\u017ea sa potom pok\u00fasi povlak odlepi\u0165 od podkladu alebo podkladovej vrstvy. T\u00fato sk\u00fa\u0161obn\u00fa met\u00f3du podrobne opisuje norma ASTM D6677.<\/p>\n\n\n\n

Testy pri\u013enavosti p\u00e1sky<\/h4>\n\n\n\n

Norma ASTM D3359 uv\u00e1dza dve met\u00f3dy testovania pri\u013enavosti pomocou p\u00e1sky citlivej na tlak, ktor\u00e1 sa aplikuje cez rezy vo f\u00f3lii:<\/p>\n\n\n\n

Met\u00f3da A (rez X):<\/strong> Pri n\u00e1terov\u00fdch syst\u00e9moch s hr\u00fabkou nad 5 milimetrov (125 \u00b5m) sa cez n\u00e1ter urob\u00ed rez X, na priese\u010dn\u00edk sa prilo\u017e\u00ed p\u00e1ska a potom sa r\u00fdchlo odstr\u00e1ni, aby sa skontrolovalo odstr\u00e1nenie n\u00e1teru.<\/p>\n\n\n\n

Met\u00f3da B (prie\u010dny rez):<\/strong> Pri n\u00e1teroch men\u0161\u00edch ako 5 milimetrov (125 \u00b5m) sa vyre\u017ee mrie\u017ekov\u00fd alebo kr\u00ed\u017eov\u00fd vzor a p\u00e1ska sa aplikuje a odstr\u00e1ni. Plocha sa potom hodnot\u00ed pod\u013ea normy ASTM D3359.<\/p>\n\n\n\n

Test pri\u013enavosti na \u0161krabance<\/h4>\n\n\n\n

Pri sk\u00fa\u0161ke adh\u00e9zie na \u0161krabance sa pou\u017e\u00edva v\u00e1\u017een\u00e1 v\u00e1ha so zaoblen\u00fdm hrotom. Potiahnut\u00e1 doska sa posunie pod stylus a p\u00f4sob\u00ed sa na \u0148u st\u00e1le v\u00e4\u010d\u0161ou v\u00e1hou, a\u017e k\u00fdm sa f\u00f3lia neuvo\u013en\u00ed. Pri\u013enavos\u0165 sa uv\u00e1dza ako hmotnos\u0165 (v kilogramoch) potrebn\u00e1 na odstr\u00e1nenie f\u00f3lie. V z\u00e1vislosti od povlaku a podkladu sa m\u00f4\u017eu uplat\u0148ova\u0165 normy ASTM, ako napr\u00edklad D2197, D2248, D2454 a D5178.<\/p>\n\n\n\n

\"Tester<\/figure>\n\n\n\n

\u010eal\u0161ie met\u00f3dy sk\u00fa\u0161ania adh\u00e9zie<\/h3>\n\n\n\n

Test no\u017eov<\/h4>\n\n\n\n

Pri sk\u00fa\u0161ke no\u017eom sa pou\u017e\u00edva univerz\u00e1lny n\u00f4\u017e na vytvorenie rezu X cez povlak a\u017e k podkladu. Kontrol\u00f3r sa potom pok\u00fasi zdvihn\u00fa\u0165 povlak zo substr\u00e1tu na vrchole rezu. T\u00e1to met\u00f3da je ve\u013emi subjekt\u00edvna a jej hodnota z\u00e1vis\u00ed od sk\u00fasenost\u00ed kontrol\u00f3ra. Norma pre t\u00fato sk\u00fa\u0161ku je ASTM D6677.<\/p>\n\n\n\n

Test p\u00e1sky<\/h4>\n\n\n\n

Form\u00e1lnej\u0161ou verziou sk\u00fa\u0161ky no\u017eom na kovov\u00fdch podkladoch je sk\u00fa\u0161ka p\u00e1skou. Zah\u0155\u0148a:<\/p>\n\n\n\n

Test p\u00e1sky s rezom X:<\/strong> Urob\u00ed sa rez X, na rezy sa nalep\u00ed p\u00e1ska a potom sa r\u00fdchlo odstr\u00e1ni. Odstr\u00e1nenie povlaku sa skontroluje a vyhodnot\u00ed.<\/p>\n\n\n\n

Test kr\u00ed\u017eov\u00e9ho \u0161rafovania p\u00e1sky:<\/strong> Vyre\u017ee sa vzor kr\u00ed\u017eov\u00e9ho \u0161rafovania (pomocou \u0161peci\u00e1lneho kr\u00ed\u017eov\u00e9ho rez\u00e1ka), nalep\u00ed sa p\u00e1ska a potom sa odstr\u00e1ni. Sk\u00fa\u0161obn\u00e1 oblas\u0165 sa porovn\u00e1 s normami ASTM D3359.<\/p>\n\n\n\n

Test adh\u00e9zie pri vytiahnut\u00ed (opakovan\u00fd)<\/h4>\n\n\n\n

Tento test, ako u\u017e bolo op\u00edsan\u00e9, zah\u0155\u0148a pripevnenie b\u00e1biky k povlaku pomocou lepidla. \u0164ahov\u00e1 sila sa postupne zvy\u0161uje, a\u017e k\u00fdm sa b\u00e1bika neodpoj\u00ed. Sk\u00fa\u0161ka je citliv\u00e1 na \u0161pecifik\u00e1cie zariadenia a tuhos\u0165 podkladu a na prisp\u00f4sobenie r\u00f4znym pevnostiam v\u00e4zby sa m\u00f4\u017eu pou\u017ei\u0165 r\u00f4zne ve\u013ekosti b\u00e1bik (napr. 20 mm, 50 mm).<\/p>\n\n\n\n

Test \u0161krabania (opakovan\u00fd)<\/h4>\n\n\n\n

V kontrolovanom laborat\u00f3rnom prostred\u00ed sa pri \u0161krabacom teste pou\u017e\u00edva vyv\u00e1\u017een\u00fd l\u00fa\u010dov\u00fd \u0161krabac\u00ed tester na ur\u010denie sily potrebnej na odstr\u00e1nenie n\u00e1teru z hladk\u00e9ho, rovn\u00e9ho povrchu pod\u013ea smernice ASTM D2197.<\/p>\n\n\n\n

Testy pri\u013enavosti farby<\/h2>\n\n\n\n

Testy pri\u013enavosti farby hodnotia, ako dobre farba alebo n\u00e1ter pri\u013ene k povrchu. Medzi be\u017en\u00e9 testy patria:<\/p>\n\n\n\n

Prierezov\u00fd test:<\/strong> Do povlaku sa vyre\u017ee mrie\u017ekov\u00fd vzor, nalep\u00ed sa p\u00e1ska citliv\u00e1 na tlak a potom sa odstr\u00e1ni. Pri\u013enavos\u0165 sa hodnot\u00ed zvy\u010dajne na stupnici 0-5 pod\u013ea normy ASTM D3359.<\/p>\n\n\n\n

Test od\u0165ahovania:<\/strong> Na povrch sa pripevn\u00ed b\u00e1bika a p\u00f4sob\u00ed sa \u0165ahovou silou, k\u00fdm sa povlak neoddel\u00ed. T\u00e1to met\u00f3da je vhodn\u00e1 na testovanie na mieste.<\/p>\n\n\n\n

Test adh\u00e9zie na \u0161krabance:<\/strong> Meria silu potrebn\u00fa na zo\u0161krabanie povlaku z povrchu.<\/p>\n\n\n\n

Test vypa\u013eovania:<\/strong> \u010eal\u0161ia met\u00f3da pou\u017e\u00edvan\u00e1 na hodnotenie pri\u013enavosti farby.<\/p>\n\n\n\n

In\u00e9 met\u00f3dy a normy sk\u00fa\u0161ania adh\u00e9zie<\/h2>\n\n\n\n

\u010eal\u0161ie met\u00f3dy zah\u0155\u0148aj\u00fa stroje na \u0165ahov\u00e9 sk\u00fa\u0161ky, kde sa farba nan\u00e1\u0161a na podklad s vlo\u017een\u00fdm textiln\u00fdm p\u00e1som alebo medzi dva listy podkladu. Norma ASTM D2370 zah\u0155\u0148a sk\u00fa\u0161ky pred\u013a\u017eenia, pevnosti v \u0165ahu a tuhosti organick\u00fdch f\u00f3li\u00ed. Adh\u00e9ziou n\u00e1terov na plastov\u00fdch podkladoch pomocou hlin\u00edkov\u00fdch t\u0155\u0148ov sa zaober\u00e1 norma ASTM D5179.<\/p>\n\n\n\n

ASTM D5179 Pr\u00edpravok<\/h3>\n\n\n\n

Pr\u00edpravok pod\u013ea normy ASTM D5179 sa pou\u017e\u00edva na pr\u00edstrojov\u00e9 indenta\u010dn\u00e9 sk\u00fa\u0161ky (nano- alebo mikroindent\u00e1cia) na meranie tvrdosti plastov a elastom\u00e9rov. Medzi jeho k\u013e\u00fa\u010dov\u00e9 vlastnosti patria:<\/p>\n\n\n\n

Induk\u010dn\u00fd mechanizmus s tvrdou sondou<\/p>\n\n\n\n

Stabiln\u00e1 z\u00e1klad\u0148a na bezpe\u010dn\u00e9 podopretie vzoriek<\/p>\n\n\n\n

Presn\u00fd syst\u00e9m aplik\u00e1cie n\u00e1kladu<\/p>\n\n\n\n

Syst\u00e9m merania h\u013abky na vyhodnotenie h\u013abky vtla\u010dku<\/p>\n\n\n\n

Tento pr\u00edpravok sa \u0161iroko pou\u017e\u00edva pri kontrole kvality a v\u00fdskume a v\u00fdvoji v priemyseln\u00fdch odvetviach, ako je automobilov\u00fd a leteck\u00fd priemysel a spotrebn\u00fd tovar.<\/p>\n\n\n\n

\u010eal\u0161ie normy<\/h3>\n\n\n\n

Medzi \u010fal\u0161ie relevantn\u00e9 normy ASTM patria:<\/p>\n\n\n\n

ASTM D4145:<\/strong> Sk\u00fa\u0161ka ohybom na stanovenie pru\u017enosti a pri\u013enavosti n\u00e1terov na predlakovan\u00fdch kovov\u00fdch podkladoch.<\/p>\n\n\n\n

ASTM 4146:<\/strong> Testovanie tv\u00e1rnite\u013enosti a pri\u013enavosti tov\u00e1rensky aplikovan\u00fdch z\u00e1kladn\u00fdch\/chr\u00f3mov\u00fdch komplexn\u00fdch n\u00e1terov bohat\u00fdch na zinok na oceli.<\/p>\n\n\n\n

Sk\u00fa\u0161ky tvrdosti (tvrdos\u0165 ceruzky, gravelometer, r\u00e1zov\u00e9 sk\u00fa\u0161ky, ohyb t\u0155\u0148a), ktor\u00e9 tie\u017e zaznamen\u00e1vaj\u00fa odlupovanie povlaku alebo stratu pri\u013enavosti.<\/p>\n\n\n\n

Met\u00f3dy a normy ASTM na testovanie pri\u013enavosti farieb<\/h2>\n\n\n\n

Na pos\u00fadenie odolnosti n\u00e1terov sa pou\u017e\u00edvaj\u00fa tri z\u00e1kladn\u00e9 testy pri\u013enavosti:<\/p>\n\n\n\n

Test kr\u00ed\u017eov\u00e9ho rezu:<\/strong> Cez povlak sa urobia rezy, nanesie a odstr\u00e1ni sa p\u00e1ska a vyhodnot\u00ed sa pri\u013enavos\u0165 pod\u013ea normy ASTM D3359.<\/p>\n\n\n\n

Test \u0161krabania:<\/strong> Pri tejto sk\u00fa\u0161ke vykon\u00e1vanej v laborat\u00f3riu sa meria sila potrebn\u00e1 na zo\u0161krabanie povlaku z podkladu (ASTM D2197).<\/p>\n\n\n\n

Pull-Off test:<\/strong> Meria \u0165ahov\u00e9 nap\u00e4tie potrebn\u00e9 na odstr\u00e1nenie povlaku pomocou b\u00e1bky v s\u00falade s normami ASTM D4541 a ISO 4624.<\/p>\n\n\n\n

Tieto testy kvantifikuj\u00fa pevnos\u0165 spojenia medzi n\u00e1terom a podkladom alebo medzi viacer\u00fdmi vrstvami, \u010d\u00edm zabezpe\u010duj\u00fa, \u017ee n\u00e1tery sp\u013a\u0148aj\u00fa normy kvality a spo\u013eahlivo funguj\u00fa.<\/p>\n\n\n\n

Z\u00e1ver<\/h2>\n\n\n\n

Ochrann\u00e9 a kozmetick\u00e9 n\u00e1tery s\u00fa nevyhnutn\u00e9 od najv\u00e4\u010d\u0161\u00edch kon\u0161trukci\u00ed vytvoren\u00fdch \u010dlovekom a\u017e po najmen\u0161ie dom\u00e1ce spotrebi\u010de. Testovanie adh\u00e9zie poskytuje kvantitat\u00edvne hodnotenie pevnosti spojenia medzi n\u00e1termi a podkladmi, \u010d\u00edm pom\u00e1ha odhali\u0165 potenci\u00e1lne poruchy a zabezpe\u010di\u0165 dlhodob\u00fa \u017eivotnos\u0165. D\u00f4sledn\u00e9 pou\u017e\u00edvanie \u0161tandardizovan\u00fdch sk\u00fa\u0161obn\u00fdch met\u00f3d je rozhoduj\u00face pre udr\u017eanie kvality a zn\u00ed\u017eenie n\u00e1kladov na prepracovanie.<\/p>\n\n\n\n

V\u017edy ver\u00edme, \u017ee charakter \u010dloveka ur\u010duje vysok\u00fa kvalitu v\u00fdrobku a detaily ur\u010duj\u00fa dokonalos\u0165 v\u00fdrobku. S duchom h\u013eadania pravdy, efekt\u00edvnymi a inovat\u00edvnymi zamestnancami pre Tester tesnosti a tesnosti<\/a>,Tester papierov\u00fdch dosiek<\/a>,Tester pri\u013enavosti<\/a>,Testovanie plastov<\/a>,Zariadenia na testovanie tesnosti<\/a>,Testovanie zdravotn\u00edckych pom\u00f4cok<\/a>,Testovanie kontajnerov<\/a>,Testovanie elektroniky<\/a><\/p>\n\n\n\n

Ak m\u00e1te z\u00e1ujem o \u010fal\u0161ie inform\u00e1cie o tomto v\u00fdrobku, nev\u00e1hajte n\u00e1s kontaktova\u0165. Odpor\u00fa\u010dame v\u00e1m \u010fal\u0161ie ob\u013e\u00faben\u00e9 produkty: Testovanie pri\u013enavosti<\/a>, Laborat\u00f3rny tester na hor\u00face lepenie<\/a>, testovanie plastov\u00fdch f\u00f3li\u00ed<\/a>, V\u00fdrobca testerov flex gelbo<\/a>, Tov\u00e1re\u0148 na testovanie za tepla<\/a>, V\u00fdrobca Gelbo Flex Tester<\/a>, Dod\u00e1vate\u013e Gelbo Flex Tester<\/a>, Slu\u017eby Gelbo Flex Tester<\/a>, Rie\u0161enie na testovanie tesnosti a tesnosti<\/a>, Tov\u00e1re\u0148 na testovanie plastov\u00fdch f\u00f3li\u00ed<\/a>, Tov\u00e1re\u0148 na testovanie plastov\u00fdch f\u00f3li\u00ed<\/a>, Rie\u0161enie Gelbo Flex Tester<\/a>, V\u00fdrobca papierov\u00fdch dosiek Tester<\/a>, Tester odolnosti Flex<\/a>, V\u00fdrobca testera odolnosti Flex<\/a>, Dod\u00e1vate\u013e testera odolnosti Flex<\/a>, Slu\u017eby testera odolnosti Flex<\/a>, Rie\u0161enie testera odolnosti Flex<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Tester plastov\u00fdch f\u00f3li\u00ed | pre farby a n\u00e1tery Aby n\u00e1tery mohli uspokojivo fungova\u0165, musia pri\u013en\u00fa\u0165 k podkladu, na ktor\u00fd s\u00fa nanesen\u00e9. Na ur\u010denie toho, ako dobre je n\u00e1ter pripevnen\u00fd k podkladu, mo\u017eno pou\u017ei\u0165 r\u00f4zne uzn\u00e1van\u00e9 met\u00f3dy. Medzi be\u017en\u00e9 meracie techniky patr\u00ed mechanick\u00e1 sk\u00fa\u0161ka pri\u013enavosti, sk\u00fa\u0161ka plastov alebo pou\u017eitie [...]<\/p>","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-926","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/posts\/926","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/comments?post=926"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/posts\/926\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/media?parent=926"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/categories?post=926"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.materialstests.com\/sk\/wp-json\/wp\/v2\/tags?post=926"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}