{"id":60,"date":"2026-06-04T08:51:43","date_gmt":"2026-06-04T08:51:43","guid":{"rendered":"https:\/\/dispersingagent.net\/?p=60"},"modified":"2026-06-04T08:52:22","modified_gmt":"2026-06-04T08:52:22","slug":"agjent-shperndares-ndryshimi-midis-nje-baze-mulliri-te-mire-dhe-nje-qe-lufton-me-ty-ne-cdo-hap","status":"publish","type":"post","link":"https:\/\/dispersingagent.net\/sq\/dispersing-agent-the-difference-between-a-good-millbase-and-one-that-fights-you-every-step\/","title":{"rendered":"Agjent shp\u00ebrndar\u00ebs: Dallimi midis nj\u00eb baz\u00eb t\u00eb mir\u00eb mulliri dhe nj\u00eb q\u00eb lufton me ju n\u00eb \u00e7do hap"},"content":{"rendered":"<p dir=\"auto\">Pas m\u00eb shum\u00eb se nj\u00ebzet e pes\u00eb vjet\u00ebsh duke kryer prova dispersioni dhe duke zgjidhur problemet n\u00eb serit\u00eb e prodhimit, kam m\u00ebsuar se cil\u00ebsia e veshjes p\u00ebrfundimtare shpesh vendoset n\u00eb tridhjet\u00eb minutat e para t\u00eb baz\u00ebs s\u00eb mullirit. N\u00ebse pigmentet dhe mbush\u00ebsit nuk disp\u00ebrsohen si\u00e7 duhet q\u00eb n\u00eb fillim, mund t\u00eb kaloni pjes\u00ebn tjet\u00ebr t\u00eb dit\u00ebs duke u marr\u00eb me rritje t\u00eb papritura t\u00eb viskoziteti, zhvillim t\u00eb dob\u00ebt t\u00eb ngjyr\u00ebs ose depozitim n\u00eb kana\u00e7e. K\u00ebtu agjent\u00ebt dispersues tregojn\u00eb vler\u00ebn e tyre. Ata jo vet\u00ebm q\u00eb b\u00ebjn\u00eb q\u00eb pigmentet t\u00eb lahen m\u00eb shpejt \u2014 ata mbajn\u00eb grimcat t\u00eb ndara n\u00eb m\u00ebnyr\u00eb q\u00eb i gjith\u00eb sistemi t\u00eb mbetet stabil gjat\u00eb prodhimit, magazinimit dhe aplikimit.<\/p>\n<p dir=\"auto\"><!--more--><\/p>\n<p dir=\"auto\">Nj\u00eb agjent shp\u00ebrndar\u00ebs vepron duke adsorbuar n\u00eb sip\u00ebrfaqen e pigmentit dhe duke krijuar nj\u00eb barrier\u00eb q\u00eb parandalon ri-aglomerimin. N\u00eb sistemet me baz\u00eb uji kjo shpesh \u00ebsht\u00eb repulsion elektrostatik nga grupet me ngarkes\u00eb (si karboksilat n\u00eb poliakrilate). N\u00eb sistemet me baz\u00eb tret\u00ebsish ose me p\u00ebrmbajtje t\u00eb lart\u00eb t\u00eb ngurta, pengesa sterike nga zinxhir\u00ebt e gjat\u00eb t\u00eb polimer\u00ebve zakonisht \u00ebsht\u00eb m\u00eb e r\u00ebnd\u00ebsishme. Disa dispersant\u00eb polimerik\u00eb modern\u00eb kombinojn\u00eb t\u00eb dy mekanizmat. Rezultati \u00ebsht\u00eb viskoziteti m\u00eb i ul\u00ebt me ngarkes\u00eb m\u00eb t\u00eb lart\u00eb pigamenti, koh\u00eb m\u00eb t\u00eb shkurtra p\u00ebr mullimin, q\u00ebndrueshm\u00ebri m\u00eb e mir\u00eb e ngjyr\u00ebs dhe m\u00eb pak depozitim me kalimin e koh\u00ebs.<\/p>\n<p dir=\"auto\">Mbaj mend ende nj\u00eb projekt me boj\u00eb arkitektonike me baz\u00eb uji ku ndryshimi ishte dramatik. Ne po shp\u00ebrndanim nj\u00eb titan dioksid rutili standard (20 % PVC) plus nj\u00eb pigment organik t\u00eb kuq n\u00eb nj\u00eb sistem emulioni akrilik. Pa asnj\u00eb dispersant, viskoziteti i baz\u00ebs s\u00eb mullis\u00eb u rrit mbi 8000 mPa\u00b7s brenda dhjet\u00eb minutash nga dispersioni me shpejt\u00ebsi t\u00eb lart\u00eb, p\u00ebrpunimi Hegman kurr\u00eb nuk ra n\u00ebn 4, dhe pas tre dit\u00ebsh pigmenti i kuq filloi t\u00eb lundroj\u00eb dhe t\u00eb flokulohet. Forca e ngjyr\u00ebs ishte rreth 15 % m\u00eb e ul\u00ebt se objektivi, dhe shk\u00eblqimi n\u00eb 60\u00b0 n\u00eb film\u00ebn e thar\u00eb ishte vet\u00ebm 42 nj\u00ebsi.<\/p>\n<p dir=\"auto\">Pastaj ne zbatuam t\u00eb nj\u00ebjt\u00ebn formulim me tre agjent\u00eb t\u00eb ndrysh\u00ebm shp\u00ebrndar\u00ebs me 1.2 wt% aktiv n\u00eb pesh\u00ebn e pigmentit:<\/p>\n<ul dir=\"auto\">\n<li>Nj\u00eb poliakrilat amoniumi konvencional dha nj\u00eb viskoziteti prej 3200 mPa\u00b7s pas dispersimit, Hegman 6.5, dhe ngjyr\u00eb t\u00eb q\u00ebndrueshme pas 30 dit\u00ebsh magazinim (Delta E &lt; 0.8). Shk\u00eblqimi u p\u00ebrmir\u00ebsua n\u00eb 58 nj\u00ebsi.<\/li>\n<li>Nj\u00eb dispersant poliuretanik me pesh\u00eb molekulare m\u00eb t\u00eb lart\u00eb uli m\u00eb tej viskozitetin n\u00eb 2100 mPa\u00b7s, arriti Hegman 7 dhe ofroi forc\u00ebn m\u00eb t\u00eb mir\u00eb t\u00eb ngjyr\u00ebs (+12 % n\u00eb forc\u00ebn e nuanc\u00ebs krahasuar me kontrollin). Pas 30 dit\u00ebsh Delta E ishte vet\u00ebm 0.4, dhe shk\u00eblqimi mbeti n\u00eb 61 nj\u00ebsi.<\/li>\n<li>Nj\u00eb dispersant me baz\u00eb fosfati performoi mir\u00eb n\u00eb viskozitete (2400 mPa\u00b7s), por tregoi pak papajtueshm\u00ebri me lidh\u00ebsin akrilik \u2014 pam\u00eb mikro-kraterizim n\u00eb mostrat e t\u00ebrheqjes dhe nj\u00eb r\u00ebnie prej 4 nj\u00ebsish n\u00eb shk\u00eblqim.<\/li>\n<\/ul>\n<p dir=\"auto\">Versioni me poliuretan fitoi n\u00eb at\u00eb pun\u00eb sepse ofroi ekuilibrin m\u00eb t\u00eb mir\u00eb midis viskoziteti t\u00eb ul\u00ebt, shp\u00ebrndarjes s\u00eb shpejt\u00eb dhe stabilitetit afatgjat\u00eb pa efekte an\u00ebsore n\u00eb film. Ne e p\u00ebrdor\u00ebm at\u00eb me 0.9 % aktiv pasi optimizuam kurb\u00ebn e dozimit. Fabrika gjithashtu vuri re se mund t\u00eb rris\u00eb ngarkes\u00ebn e TiO\u2082 me 8 % pa probleme me viskoziteti, gj\u00eb q\u00eb p\u00ebrmir\u00ebsoi mbulimin dhe uli koston e p\u00ebrgjithshme t\u00eb formulimit.<\/p>\n<p dir=\"auto\">Ai test m\u00eb m\u00ebsoi disa m\u00ebsime praktike. S\u00eb pari, dozimi ka m\u00eb shum\u00eb r\u00ebnd\u00ebsi sesa shumica e njer\u00ebzve presin. N\u00ebse \u00ebsht\u00eb shum\u00eb pak, m\u00eb von\u00eb do t\u00eb keni flokullim; n\u00ebse \u00ebsht\u00eb shum\u00eb, mund t\u00eb rrisni p\u00ebrs\u00ebri viskoziteti ose t\u00eb d\u00ebmtoni rezistenc\u00ebn ndaj ujit. Un\u00eb gjithmon\u00eb p\u00ebrdor nj\u00eb shkall\u00eb nga 0.5 % deri n\u00eb 2.5 % aktiv n\u00eb pigment dhe v\u00ebzhgoj si kurb\u00ebn e mullimit ashtu edhe stabilitetin e magazinimit.<\/p>\n<p dir=\"auto\">S\u00eb dyti, kimia duhet t\u00eb p\u00ebrputhet me sistemin. Poliakrilatet jan\u00eb t\u00eb lira dhe efektive n\u00eb shum\u00eb boja dekorative me baz\u00eb uji, por ato mund t\u00eb jen\u00eb t\u00eb ndjeshme ndaj elektroliteve dhe ndryshimeve t\u00eb pH-s\u00eb. Dispersant\u00ebt polimerik\u00eb (t\u00eb poliuretanit ose polieterit) kushtojn\u00eb m\u00eb shum\u00eb, por ofrojn\u00eb performanc\u00eb m\u00eb t\u00eb mir\u00eb me pigmente organike t\u00eb v\u00ebshtira dhe n\u00eb sisteme q\u00eb k\u00ebrkojn\u00eb shk\u00eblqim t\u00eb lart\u00eb ose q\u00ebndrueshm\u00ebri t\u00eb mir\u00eb t\u00eb jashtme. Tek alkid\u00ebt ose epoksidet me baz\u00eb tret\u00ebsish, un\u00eb ende m\u00eb shpesh p\u00ebrdor lloje me acid yndyror ose akrilik t\u00eb modifikuar.<\/p>\n<p dir=\"auto\">S\u00eb treti, testi i v\u00ebrtet\u00eb nuk \u00ebsht\u00eb kurr\u00eb vet\u00ebm p\u00ebrpjekja fillestare. Un\u00eb gjithmon\u00eb kontrolloj viskozitetin pas 24 or\u00ebsh dhe pas nj\u00eb jave, kryej nj\u00eb test fshirjeje p\u00ebr pranimin e ngjyr\u00ebs dhe b\u00ebj ruajtje t\u00eb p\u00ebrshpejtuar (50 \u00b0C p\u00ebr dy jav\u00eb) p\u00ebr t\u00eb par\u00eb n\u00ebse shfaqet flokullim ose mbingarkes\u00eb. Shum\u00eb serira laboratorike \u201ct\u00eb mira\u201d d\u00ebshtojn\u00eb n\u00eb k\u00ebt\u00eb faz\u00eb.<\/p>\n<p dir=\"auto\">Sipas p\u00ebrvoj\u00ebs, p\u00ebrfitimet m\u00eb t\u00eb m\u00ebdha shfaqen kur rrisni ngarkes\u00ebn e pigmentit ose punoni me pigmente t\u00eb v\u00ebshtira p\u00ebr t'u shp\u00ebrndar\u00eb, si disa ftalocianina ose t\u00eb zeza karboni. N\u00eb nj\u00eb projekt boje, kalimi te nj\u00eb dispersant polimerik i p\u00ebrshtatur na lejoi t\u00eb rrisim ngarkes\u00ebn e karbonit t\u00eb zi nga 12 % n\u00eb 18 %, duke mbajtur viskozitetin n\u00ebn 1500 mPa\u00b7s. Ky ndryshim i vet\u00ebm p\u00ebrmir\u00ebsoi jetness-in dhe reduktoi numrin e kalimeve n\u00eb mullirin me perla nga kat\u00ebr n\u00eb dy.<\/p>\n<p dir=\"auto\">Sigurisht, agjent\u00ebt shp\u00ebrndar\u00ebs nuk jan\u00eb nj\u00eb kur\u00eb p\u00ebr gjith\u00e7ka. Ata nuk do t\u00eb rregullojn\u00eb cil\u00ebsin\u00eb e dob\u00ebt t\u00eb pigmentit, mediumin e gabuar t\u00eb mullirit apo shearin e pamjaftuesh\u00ebm. Gjithashtu, ata shtojn\u00eb kosto dhe ndonj\u00ebher\u00eb mund t\u00eb ndikojn\u00eb n\u00eb vetit\u00eb e tjera \u2014 krijimin e shkum\u00ebs, rezistenc\u00ebn ndaj ujit apo aderimin nd\u00ebrmjet shtresave n\u00ebse zgjidhet lloji i gabuar.<\/p>\n<p dir=\"auto\">N\u00eb fund t\u00eb fundit, agjenti i duhur i shp\u00ebrndarjes mbetet nj\u00eb nga vendimet me ndikimin m\u00eb t\u00eb madh q\u00eb merrni n\u00eb nj\u00eb formulim. Kur funksionon, fitoni prodhim m\u00eb t\u00eb shpejt\u00eb, serira m\u00eb t\u00eb q\u00ebndrueshme, ngjyr\u00eb m\u00eb t\u00eb mir\u00eb dhe m\u00eb pak ankesa nga klient\u00ebt. Kur nuk funksionon, luftoni me baz\u00ebn e mullirit \u00e7do dit\u00eb. Fabrikant\u00ebt q\u00eb trajtojn\u00eb zgjedhjen e dispersantit si pun\u00eb serioze formulimi \u2014 duke kryer prova t\u00eb duhura krahasuese dhe duke matur at\u00eb q\u00eb ndodh v\u00ebrtet pas magazinimit dhe aplikimit \u2014 jan\u00eb ata q\u00eb ndalojn\u00eb ndjekjen e problemeve dhe fillojn\u00eb t\u00eb arrijn\u00eb objektivat n\u00eb m\u00ebnyr\u00eb t\u00eb q\u00ebndrueshme.<\/p>","protected":false},"excerpt":{"rendered":"<p>After more than twenty-five years running dispersion trials and troubleshooting production batches, I\u2019ve learned that the quality of the final coating often gets decided in the first thirty minutes of the millbase. If the pigments and fillers don\u2019t disperse properly right from the start, you can spend the rest of the day chasing viscosity spikes, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[3],"tags":[],"class_list":["post-60","post","type-post","status-publish","format-standard","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/posts\/60","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/comments?post=60"}],"version-history":[{"count":2,"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/posts\/60\/revisions"}],"predecessor-version":[{"id":64,"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/posts\/60\/revisions\/64"}],"wp:attachment":[{"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/media?parent=60"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/categories?post=60"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dispersingagent.net\/sq\/wp-json\/wp\/v2\/tags?post=60"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}