{"id":163,"date":"2026-06-04T09:38:16","date_gmt":"2026-06-04T09:38:16","guid":{"rendered":"https:\/\/defoamer.net\/?p=163"},"modified":"2026-06-04T09:42:04","modified_gmt":"2026-06-04T09:42:04","slug":"kopuk-onleyici-kopugun-tum-partiyi-mahvetmesini-engelleyen-az-miktarda-katki-maddesi","status":"publish","type":"post","link":"https:\/\/defoamer.net\/tr\/defoamer-the-small-addition-that-stops-foam-from-wrecking-an-entire-batch\/","title":{"rendered":"K\u00f6p\u00fck Kesici: K\u00f6p\u00fc\u011f\u00fcn T\u00fcm Partiyi Mahvetmesini \u00d6nleyen K\u00fc\u00e7\u00fck Katk\u0131"},"content":{"rendered":"<div>\n<p dir=\"auto\">Boya ve kaplama tesislerinde yirmi be\u015f y\u0131ldan fazla \u00e7al\u0131\u015ft\u0131ktan sonra, k\u00f6p\u00fc\u011f\u00fcn basit bir \u00fcretim \u00e7al\u0131\u015fmas\u0131 olmas\u0131 gerekirken uzun bir \u0131skarta ve yeniden i\u015fleme g\u00fcn\u00fcne d\u00f6n\u00fc\u015ft\u00fc\u011f\u00fcn\u00fc g\u00f6rd\u00fcm. Pigment dispersiyonunun veya re\u00e7ine sisteminin ne kadar iyi oldu\u011fu \u00f6nemli de\u011fildir - e\u011fer inat\u00e7\u0131 k\u00f6p\u00fck bitmi\u015f boyaya kadar ta\u015f\u0131n\u0131rsa, i\u011fne delikleri, kraterler, zay\u0131f ak\u0131\u015f ve mutsuz m\u00fc\u015fterilerle sonu\u00e7lan\u0131rs\u0131n\u0131z. K\u00f6p\u00fck kesiciler, bu sorunlar\u0131n \u00e7o\u011funu sessizce \u00f6nleyen katk\u0131 maddeleridir, ancak yaln\u0131zca do\u011fru t\u00fcr\u00fc se\u00e7ti\u011finizde ve do\u011fru kulland\u0131\u011f\u0131n\u0131zda.<\/p>\n<p dir=\"auto\"><!--more--><\/p>\n<p dir=\"auto\">Y\u00fcksek kesme kuvvetli kar\u0131\u015ft\u0131rma, pompalama veya doldurma i\u015flemleri s\u0131ras\u0131nda s\u0131v\u0131ya hava kar\u0131\u015ft\u0131\u011f\u0131nda k\u00f6p\u00fck olu\u015fur ve bu kabarc\u0131klar, form\u00fclasyon i\u00e7in gerekli olan ayn\u0131 y\u00fczey aktif maddeler ve dispersanlar taraf\u0131ndan stabilize edilir. Su bazl\u0131 sistemlerde, y\u00fczey aktif madde seviyelerinin daha y\u00fcksek olmas\u0131 nedeniyle bu sorun genellikle daha ciddi boyutlara ula\u015f\u0131r. \u0130yi bir k\u00f6p\u00fck giderici, y\u00fczey geriliminin \u00e7ok d\u00fc\u015f\u00fck olmas\u0131 sayesinde kabarc\u0131k y\u00fczeyine h\u0131zla yay\u0131l\u0131r, stabilize edici filmi yerinden eder ve kabarc\u0131k duvar\u0131n\u0131n incelip patlamas\u0131na neden olur. Bir\u00e7ok modern \u00fcr\u00fcn, filmi i\u00e7eriden delmeye yard\u0131mc\u0131 olan k\u00fc\u00e7\u00fck hidrofobik par\u00e7ac\u0131klar da i\u00e7erir.<\/p>\n<p dir=\"auto\">D\u00fczenli olarak kulland\u0131\u011f\u0131m \u00fc\u00e7 ana \u00fcr\u00fcn grubu vard\u0131r. Mineral ya\u011f bazl\u0131 k\u00f6p\u00fck \u00f6nleyiciler, \u00f6zellikle end\u00fcstriyel ve bak\u0131m kaplamalar\u0131nda dayan\u0131kl\u0131 ve maliyet etkin \u00e7\u00f6z\u00fcmler sunar. Genellikle modifiye polidimetilsiloksanlardan olu\u015fan silikon bazl\u0131 \u00fcr\u00fcnler, \u00e7ok d\u00fc\u015f\u00fck dozajlarda h\u0131zl\u0131 k\u00f6p\u00fck giderme sa\u011flar ve mimari boyalarda ile parlak su bazl\u0131 boyalarda yayg\u0131n olarak kullan\u0131l\u0131r. Polimer bazl\u0131 veya silikon i\u00e7ermeyen se\u00e7enekler, yasal d\u00fczenlemeler veya uyumluluk sorunlar\u0131 nedeniyle geleneksel silikonlar\u0131n kullan\u0131lamad\u0131\u011f\u0131 durumlarda giderek daha pop\u00fcler hale gelmi\u015ftir.<\/p>\n<p dir=\"auto\">Birka\u00e7 y\u0131l \u00f6nce, ger\u00e7ek farklar\u0131 ortaya koyan bir su bazl\u0131 akrilik end\u00fcstriyel emaye projesini h\u00e2l\u00e2 hat\u0131rl\u0131yorum. Akrilik dispersiyonda 32 % PVC oran\u0131nda TiO\u2082 ve organik pigmentleri da\u011f\u0131t\u0131yorduk. K\u00f6p\u00fck \u00f6nleyici kullan\u0131lmad\u0131\u011f\u0131nda, mil taban\u0131 a\u015f\u0131r\u0131 derecede k\u00f6p\u00fcrd\u00fc. 250 ml'lik dereceli silindirde on dakika boyunca y\u00fcksek h\u0131zda dispersiyon uyguland\u0131ktan sonra k\u00f6p\u00fck y\u00fcksekli\u011fi 175 mm'ye ula\u015ft\u0131 ve bu seviyede kald\u0131. Bitmi\u015f boya, \u00e7ekme testlerinde 10 cm\u00b2 ba\u015f\u0131na ortalama 14 i\u011fne deli\u011fi g\u00f6sterdi, 60\u00b0'deki parlakl\u0131k sadece 64 birimdi ve p\u00fcsk\u00fcrt\u00fclm\u00fc\u015f panellerde g\u00f6zle g\u00f6r\u00fcl\u00fcr kraterler vard\u0131.<\/p>\n<p dir=\"auto\">Ard\u0131ndan, seyreltme a\u015famas\u0131nda 0,3 % aktif madde olarak eklenmi\u015f \u00fc\u00e7 farkl\u0131 k\u00f6p\u00fck \u00f6nleyici ile ayn\u0131 temel form\u00fcl\u00fc denedik:<\/p>\n<ul dir=\"auto\">\n<li>Standart bir mineral ya\u011f k\u00f6p\u00fck \u00f6nleyici, k\u00f6p\u00fck y\u00fcksekli\u011fini 70 mm\u2019ye d\u00fc\u015f\u00fcrd\u00fc. \u0130\u011fne deli\u011fi say\u0131s\u0131 10 cm\u00b2 ba\u015f\u0131na yakla\u015f\u0131k 5\u2019e geriledi, ancak kurumu\u015f filmde hafif bir bulan\u0131kl\u0131k g\u00f6zlendi ve parlakl\u0131k sadece 71 birime ula\u015ft\u0131. 50 \u00b0C\u2019de iki hafta bekletildikten sonra y\u00fczeyde hafif bir ayr\u0131\u015fma g\u00f6zlemledik.<\/li>\n<li>Geleneksel bir silikon em\u00fclsiyonu, k\u00f6p\u00fck y\u00fcksekli\u011fini 18 mm\u2019ye d\u00fc\u015f\u00fcrd\u00fc ve hem \u00e7ekme testlerinde hem de p\u00fcsk\u00fcrt\u00fclm\u00fc\u015f panellerde g\u00f6r\u00fclen i\u011fne deliklerini ortadan kald\u0131rd\u0131. Parlakl\u0131k 82 birime y\u00fckseldi. Depolama kararl\u0131l\u0131\u011f\u0131 iyiydi; ancak kayganl\u0131kta hafif bir art\u0131\u015f g\u00f6zlemledik ve bu durum, m\u00fc\u015fteri yeniden kaplama yapmak istedi\u011finde daha sonra k\u00fc\u00e7\u00fck sorunlara yol a\u00e7t\u0131.<\/li>\n<li>Polieterle modifiye edilmi\u015f bir silikon, 15 mm\u2019lik k\u00f6p\u00fck y\u00fcksekli\u011fi, s\u0131f\u0131r i\u011fne deli\u011fi ve 86 birimlik en y\u00fcksek parlakl\u0131k sa\u011flad\u0131. Ayr\u0131ca en iyi uzun vadeli kararl\u0131l\u0131\u011f\u0131 da sergiledi \u2014 oda s\u0131cakl\u0131\u011f\u0131nda 30 g\u00fcn sonra herhangi bir ayr\u0131\u015fma veya viskozite de\u011fi\u015fimi g\u00f6zlenmedi. Tek dezavantaj\u0131, y\u00fczey kayganl\u0131\u011f\u0131nda k\u00fc\u00e7\u00fck bir art\u0131\u015f olmas\u0131yd\u0131; ancak bunu, dozaj\u0131 0,25 %'ye d\u00fc\u015f\u00fcrerek \u00e7\u00f6zd\u00fck.<\/li>\n<\/ul>\n<p dir=\"auto\">De\u011fi\u015ftirilmi\u015f silikon versiyonu, yeni kusurlar olu\u015fturmadan en temiz filmi sa\u011flad\u0131\u011f\u0131 i\u00e7in o \u00fcr\u00fcn grubu i\u00e7in standart\u0131m\u0131z haline geldi. Katk\u0131y\u0131 ikiye b\u00f6ld\u00fck \u2014 yar\u0131s\u0131n\u0131 \u00f6\u011f\u00fctme a\u015famas\u0131na, di\u011fer yar\u0131s\u0131n\u0131 ise seyreltme a\u015famas\u0131na ekledik \u2014 bu da t\u00fcm\u00fcn\u00fc tek seferde eklemeye k\u0131yasla biraz daha iyi kal\u0131c\u0131l\u0131k sa\u011flad\u0131.<\/p>\n<p dir=\"auto\">Bu deneme, bir\u00e7ok fabrikada tekrar tekrar g\u00f6zlemledi\u011fim dersleri peki\u015ftirdi. Silikonlarda dozaj \u00e7ok \u00f6nemlidir; genellikle 0,1\u20130,4 % yeterlidir. Bu miktar\u0131n \u00e7ok \u00fczerine \u00e7\u0131kmak, \u00f6zellikle parlak veya yeniden boyanabilir sistemlerde s\u0131kl\u0131kla bal\u0131k g\u00f6z\u00fc veya \u00e7ukur olu\u015fumuna neden olur. \u0130lave noktas\u0131 da \u00f6nemlidir. T\u00fcm dozu \u00f6\u011f\u00fctme a\u015famas\u0131na eklemek, kesme kuvveti nedeniyle daha sonra etkinli\u011fi bazen azaltabilir. Ger\u00e7ek alt tabaka \u00fczerinde ve tam form\u00fclasyonla uyumluluk testi yap\u0131lmas\u0131 \u015fartt\u0131r \u2014 bir akrilikte m\u00fckemmel \u00e7al\u0131\u015fan bir \u00fcr\u00fcn, belirli \u0131slat\u0131c\u0131 maddeler mevcut oldu\u011funda ba\u015fka bir akrilikte ciddi kraterlere neden olabilir.<\/p>\n<p dir=\"auto\">Deneyimlere g\u00f6re, k\u00f6p\u00fck sorunlar\u0131yla en az kar\u015f\u0131la\u015fan tesisler, k\u00f6p\u00fck \u00f6nleyici se\u00e7imini sonradan akla gelen bir konu olarak de\u011fil, ciddi bir form\u00fclasyon \u00e7al\u0131\u015fmas\u0131 olarak ele al\u0131rlar. Uygun kar\u015f\u0131la\u015ft\u0131rma denemeleri yaparlar, k\u00f6p\u00fck y\u00fcksekli\u011fini hem an\u0131nda hem de 24 saat sonra \u00f6l\u00e7erler, kurumu\u015f filmi iyi bir ayd\u0131nlatma alt\u0131nda incelerler ve her zaman depolama kararl\u0131l\u0131\u011f\u0131n\u0131 ve yeniden kaplama performans\u0131n\u0131 do\u011frularlar. Ayr\u0131ca, hangi \u00fcr\u00fcn s\u0131n\u0131flar\u0131n\u0131n kendi \u00f6zel pigment ve re\u00e7ine kombinasyonlar\u0131yla en iyi performans\u0131 g\u00f6sterdi\u011fine dair kay\u0131t tutarlar.<\/p>\n<p dir=\"auto\">Hi\u00e7bir k\u00f6p\u00fck \u00f6nleyici tek ba\u015f\u0131na her sorunu \u00e7\u00f6zemez. Mineral ya\u011f t\u00fcrleri, \u015feffaf kaplamalarda bulan\u0131kl\u0131\u011fa neden olabilir. Baz\u0131 silikonlar, katlar aras\u0131 yap\u0131\u015fmay\u0131 etkileyebilir. Polimer bazl\u0131 \u00fcr\u00fcnler bazen daha y\u00fcksek dozajlara ihtiya\u00e7 duyar. As\u0131l beceri, kimyasal bile\u015fimi k\u00f6p\u00fck kayna\u011f\u0131na, uygulama y\u00f6ntemine ve nihai film gereksinimlerine uygun hale getirmek, ard\u0131ndan sadece teknik verilerle yetinmek yerine pratik testlerle se\u00e7imi do\u011frulamakt\u0131r.<\/p>\n<p dir=\"auto\">Do\u011fru k\u00f6p\u00fck \u00f6nleyici, do\u011fru miktarda ve do\u011fru a\u015famada kullan\u0131ld\u0131\u011f\u0131nda, \u00e7o\u011fu ki\u015fi onun varl\u0131\u011f\u0131n\u0131 fark etmez bile. \u00dcretim daha sorunsuz ilerler, reddedilen \u00fcr\u00fcn say\u0131s\u0131 azal\u0131r ve bitmi\u015f kaplama olmas\u0131 gerekti\u011fi gibi g\u00f6r\u00fcn\u00fcr. \u0130\u015fte bu sessiz g\u00fcvenilirlik, onca y\u0131ldan sonra bile k\u00f6p\u00fck \u00f6nleyici se\u00e7imini h\u00e2l\u00e2 herhangi bir form\u00fclasyonda en etkili kararlar\u0131ndan biri olarak g\u00f6rmemin sebebidir.<\/p>\n<\/div>\n<p>&nbsp;<\/p>\n<div><\/div>","protected":false},"excerpt":{"rendered":"<p>After more than twenty-five years working in paint and coatings plants, I\u2019ve seen foam turn what should have been a straightforward production run into a long day of rejects and rework. It doesn\u2019t matter how good the pigment dispersion or resin system is \u2014 if persistent foam carries through to the finished paint, you end [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-163","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/posts\/163","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/comments?post=163"}],"version-history":[{"count":4,"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/posts\/163\/revisions"}],"predecessor-version":[{"id":167,"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/posts\/163\/revisions\/167"}],"wp:attachment":[{"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/media?parent=163"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/categories?post=163"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/defoamer.net\/tr\/wp-json\/wp\/v2\/tags?post=163"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}