{"id":53345,"date":"2026-09-10T18:36:47","date_gmt":"2026-09-10T18:36:47","guid":{"rendered":"https:\/\/cp.snarskis.lt\/index.php\/2026\/09\/10\/baltas-kaip-sniegas-bet-be-pigmento-mokslininku-medziaga-gali-pakeisti-pakuotes-ir-drabuzius\/"},"modified":"2026-09-10T18:36:47","modified_gmt":"2026-09-10T18:36:47","slug":"baltas-kaip-sniegas-bet-be-pigmento-mokslininku-medziaga-gali-pakeisti-pakuotes-ir-drabuzius","status":"publish","type":"post","link":"https:\/\/cp.snarskis.lt\/index.php\/2026\/09\/10\/baltas-kaip-sniegas-bet-be-pigmento-mokslininku-medziaga-gali-pakeisti-pakuotes-ir-drabuzius\/","title":{"rendered":"Baltas kaip sniegas, bet be pigmento: mokslinink\u0173 med\u017eiaga gali pakeisti pakuotes ir drabu\u017eius"},"content":{"rendered":"

Mokslininkai suk\u016br\u0117 med\u017eiag\u0105, kuri atrodo itin balta, nors joje n\u0117ra \u012fprast\u0173 balt\u0173 pigment\u0173. Vietoje chemini\u0173 pried\u0173 pasitelkta mikroskopin\u0117 strukt\u016bra, kuri taip i\u0161sklaido \u0161vies\u0105, kad pavir\u0161ius vizualiai tampa ry\u0161kiai baltas.<\/p>\n

\u0160is rei\u0161kinys vadinamas strukt\u016brine balta spalva. Gamtoje ji pasitaiko da\u017enai: sniego, debes\u0173 ar j\u016bros put\u0173 baltumas kyla ne i\u0161 da\u017eikli\u0173, o i\u0161 to, kaip smulkios strukt\u016bros sklaido ir atspindi \u0161vies\u0105.<\/p>\n

Nauja gamybos technologija<\/h2>\n

Tyr\u0117jai pritaik\u0117 metod\u0105, pavadint\u0105 DFP, kai polimere suformuojama itin smulki\u0173, atvir\u0173 por\u0173 sistema. B\u016btent \u0161i por\u0117ta architekt\u016bra leid\u017eia efektyviai sklaidyti \u0161vies\u0105 ir pasiekti didel\u012f baltum\u0105 be papildomo pigmento.<\/p>\n

Procesas apib\u016bdinamas kaip palyginti paprastas: polimeras veikiamas \u0161viesa, kad jo strukt\u016bra pakist\u0173, o v\u0117liau naudojamas \u0161velnus tirpiklis. Tai sukelia polimero brinkim\u0105 ir suformuoja mikropor\u0173 tinkl\u0105.<\/p>\n

Ne tik balta, bet ir atstumianti vanden\u012f<\/h2>\n

Ta pati mikroskopin\u0117 strukt\u016bra suteikia dar vien\u0105 savyb\u0119: pavir\u0161ius tampa \u0161iurk\u0161tesnis ir pradeda stipriai atstumti vanden\u012f. Efektas lyginamas su lotoso lapu, ant kurio vandens la\u0161ai nesusigeria, o i\u0161lieka beveik rutuli\u0161ki ir lengvai nurieda.<\/p>\n

Tokio derinio praktin\u0117 reik\u0161m\u0117 didel\u0117, nes pramon\u0117je baltumas ir nepermatomumas da\u017enai i\u0161gaunamas titano dioksidu, o hidrofobi\u0161kumas neretai siejamas su PFAS grup\u0117s med\u017eiagomis. Pastarosios vis da\u017eniau atsiduria reguliuotoj\u0173 ir mokslinink\u0173 d\u0117mesio centre d\u0117l ilgaam\u017ei\u0161kumo aplinkoje ir galim\u0173 rizik\u0173.<\/p>\n

K\u0105 tai gali pakeisti pramon\u0117je<\/h2>\n

Mokslininkai teigia, kad naujasis metodas gali suma\u017einti poreik\u012f daliai toki\u0173 pried\u0173, nes norimos savyb\u0117s pasiekiamos suprojektuojant pa\u010di\u0105 med\u017eiagos sandar\u0105. Technologija demonstruota ne tik laboratoriniuose m\u0117giniuose: j\u0105 pavyko pritaikyti polimerin\u0117ms pl\u0117vel\u0117ms ir audiniams.<\/p>\n

Tyrimuose naudoti keli komerci\u0161kai prieinami polimerai, tod\u0117l tai gali palengvinti keli\u0105 \u012f platesn\u012f pritaikym\u0105. Potencialios kryptys apima pakuo\u010di\u0173, dang\u0173, pl\u0117veli\u0173 ir tekstil\u0117s gamyb\u0105, kur svarbu baltumas, atsparumas dr\u0117gmei ir ma\u017eesnis priklausymas nuo papildom\u0173 chemini\u0173 pried\u0173.<\/p>\n

Vienas \u012fsp\u016bdingiausi\u0173 parametr\u0173 yra pasiekiama strukt\u016br\u0173 formavimo rai\u0161ka, kuri, kaip skelbiama, gali siekti apie 20 000 DPI. Tai rei\u0161kia itin tiksl\u0173 mikroskopin\u0117s architekt\u016bros valdym\u0105, atveriant\u012f keli\u0105 med\u017eiagoms, kuri\u0173 savybes lemia ne priedai, o pati j\u0173 strukt\u016bra.<\/p>\n","protected":false},"excerpt":{"rendered":"

Mokslininkai suk\u016br\u0117 itin balt\u0105, vanden\u012f atstumian\u010di\u0105 med\u017eiag\u0105 be pigment\u0173: jos mikropor\u0173 strukt\u016bra gali pakeisti pakuotes ir tekstil\u0119.<\/p>\n","protected":false},"author":0,"featured_media":53346,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[13434,1027,7225,4564,41262,3341,41263],"miestas":[],"class_list":["post-53345","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mokslas","tag-medziagu-mokslas","tag-pakuotes","tag-pfas","tag-polimerai","tag-strukturine-balta-spalva","tag-tekstile","tag-titano-dioksidas"],"acf":[],"_links":{"self":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/53345","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/comments?post=53345"}],"version-history":[{"count":0,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/posts\/53345\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media\/53346"}],"wp:attachment":[{"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/media?parent=53345"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/categories?post=53345"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/tags?post=53345"},{"taxonomy":"miestas","embeddable":true,"href":"https:\/\/cp.snarskis.lt\/index.php\/wp-json\/wp\/v2\/miestas?post=53345"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}