{"id":21025458,"date":"2020-01-12T02:29:00","date_gmt":"2020-01-12T01:29:00","guid":{"rendered":"https:\/\/geek.hr\/?p=21025458"},"modified":"2020-01-12T20:02:50","modified_gmt":"2020-01-12T19:02:50","slug":"samoobnavljajuce-cipele-nastale-iz-3d-isprintane-gume","status":"publish","type":"post","link":"https:\/\/geek.hr\/clanak\/samoobnavljajuce-cipele-nastale-iz-3d-isprintane-gume\/","title":{"rendered":"Samoobnavljaju\u0107i potplati cipela nastali iz mo\u0107ne 3D isprintane gume"},"content":{"rendered":"\n<p><strong>Potplati cipela<\/strong> se neminovno tro\u0161e tijekom upotrebe, no znanstvenici su mo\u017eda prona\u0161li na\u010din da odgode vrijeme za kupovinu novih.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Svemogu\u0107a guma<\/h4>\n\n\n\n<p>Znanstveni tim sa <a href=\"https:\/\/www.usc.edu\" target=\"_blank\" rel=\"noopener noreferrer\">Southern California Sveu\u010dili\u0161ta<\/a> je uspio stvoriti <strong>samoobnavljaju\u0107u 3D isprintanu gumu<\/strong> koja bi mogla biti idealna za obu\u0107u, gume za vozila, ali i za sve ostale gumene dijelove koji se tro\u0161e u svim drugim industrijama.<\/p>\n\n\n\n<p>Proces stvaranja ove gume se zasniva na 3D printu materijala s foto-polimerizacijom (u\u010dvr\u0161\u0107ivanje smole sa svjetlo\u0161\u0107u). Pritom se smjesi dodaje i oksidans u odre\u0111enom odnosu, kako bi se dobila svojstva samozacjeljivanja, bez usporavanja procesa o\u010dvr\u0161\u0107avanja.<\/p>\n\n\n\n<p>Kao rezultat dobiva se <strong>vrlo izdr\u017eljiva guma<\/strong> koju je mogu\u0107e napraviti u razumnom vremenskom periodu.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Samopopravak u par sati<\/h4>\n\n\n\n<p>Objekt \u010dija izrada traje 20 minuta (kao \u0161to je potplat cipele, primjerice), presje\u010den napola, mo\u017ee se na ovaj na\u010din <strong>sam od sebe popraviti za nekoliko sati<\/strong>. \u0160to je temperatura toplija, to je proces samoobnavljanja br\u017ei.<\/p>\n\n\n\n<p>U laboratorijskim uvjetima, na temperaturi od 60 stupnjeva Celzijusa, proces obnavljanja jednog takvog potplata trajao je oko dva sata.<\/p>\n\n\n\n<figure class=\"wp-block-image alignnone size-full wp-image-21025462\"><img decoding=\"async\" width=\"797\" height=\"346\" src=\"https:\/\/geek.hr\/wp-content\/uploads\/2019\/02\/41427_2019_109_Fig1_HTML-3.jpg\" alt=\"\" class=\"wp-image-21025462\" srcset=\"https:\/\/geek.hr\/wp-content\/uploads\/2019\/02\/41427_2019_109_Fig1_HTML-3.jpg 797w, https:\/\/geek.hr\/wp-content\/uploads\/2019\/02\/41427_2019_109_Fig1_HTML-3-768x333.jpg 768w, https:\/\/geek.hr\/wp-content\/uploads\/2019\/02\/41427_2019_109_Fig1_HTML-3-255x110.jpg 255w, https:\/\/geek.hr\/wp-content\/uploads\/2019\/02\/41427_2019_109_Fig1_HTML-3-600x260.jpg 600w\" sizes=\"(max-width: 797px) 100vw, 797px\" \/><figcaption>Foto: 3D Printing Industry<\/figcaption><\/figure>\n\n\n\n<p>Na\u017ealost, sve ovo jo\u0161 uvijek nije spremno za svakodnevnu upotrebu.<\/p>\n\n\n\n<p>Potrebno je najprije prona\u0107i na\u010din kako da se navedeni proces izrade gumenih proizvoda u\u010dini <strong>dostupnim za masovnu proizvodnju. <\/strong><\/p>\n\n\n\n<p>Iako jo\u0161 nije dostupan obi\u010dnim smrtnicima ovaj proboj je bitan ne samo u istra\u017eiva\u010dkom smislu. Naime, znanstveni tim s USC-a radi i na pronala\u017eenju na\u010dina za <strong>samoobnavljanje tvr\u0111ih materijala, kao \u0161to je plastika<\/strong>. To bi tek moglo osigurati mnoga nova polja primjene.<\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"3D-printed self-healing soft actuator lifts weight after being cut in half\" width=\"880\" height=\"495\" src=\"https:\/\/www.youtube.com\/embed\/UzbwwiKp14M?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Budu\u0107nost ne\u0107e biti blaga prema postolarima i vulkanizerima<\/p>\n","protected":false},"author":3909,"featured_media":21025457,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"publish_to_discourse":"","publish_post_category":"","wpdc_auto_publish_overridden":"","wpdc_topic_tags":"","wpdc_pin_topic":"","wpdc_pin_until":"","discourse_post_id":"","discourse_permalink":"","wpdc_publishing_response":"","wpdc_publishing_error":"","_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[1],"tags":[2812,4044],"modified_by":"Filip C","_links":{"self":[{"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/posts\/21025458"}],"collection":[{"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/users\/3909"}],"replies":[{"embeddable":true,"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/comments?post=21025458"}],"version-history":[{"count":0,"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/posts\/21025458\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/media\/21025457"}],"wp:attachment":[{"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/media?parent=21025458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/categories?post=21025458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/geek.hr\/wp-json\/wp\/v2\/tags?post=21025458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}