{"id":3623,"date":"2023-04-12T12:22:14","date_gmt":"2023-04-12T10:22:14","guid":{"rendered":"https:\/\/agora.xtec.cat\/insponts\/?p=3623"},"modified":"2023-04-13T11:55:54","modified_gmt":"2023-04-13T09:55:54","slug":"experimentacions-de-les-propietats-de-nous-materials","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/insponts\/general\/experimentacions-de-les-propietats-de-nous-materials\/","title":{"rendered":"Experimentacions de les propietats de nous materials"},"content":{"rendered":"<p>A l\u2019assignatura de tecnologia de 3<sup>r<\/sup> d\u2019ESO , hem estat treballant els nous materials i les seves propietats i gr\u00e0cies als companys del centre de recursos pedag\u00f2gics de la Noguera hem pogut portar a la pr\u00e0ctica els conceptes te\u00f2rics amb les maletes pedag\u00f2giques del NANOEDUCA que ens han cedit durant uns dies.<\/p>\n<p><a href=\"http:\/\/nanoeduca.cat\/ca\/inici\/\">NANOeduca<\/a>\u00a0\u00e9s una iniciativa\u00a0del\u00a0<a href=\"https:\/\/agora.xtec.cat\/cesire\/categoria\/projectes\/nano\/\">CESIRE<\/a>\u00a0en col\u00b7laboraci\u00f3 amb els\u00a0<a href=\"http:\/\/www.ccit.ub.edu\/\">Centres Cient\u00edfics i Tecnol\u00f2gics<\/a>\u00a0(CCiTUB) de la Universitat de Barcelona, l\u2019<a href=\"http:\/\/www.icn.cat\/\">Institut Catal\u00e0 de Nanoci\u00e8ncia i Nanotecnologia<\/a>\u00a0(ICN2), i el\u00a0<a href=\"http:\/\/www.uab.cat\/web\/estudiar\/llistat-de-graus\/informacio-general\/nanociencia-i-nanotecnologia-1216708251447.html?param1=1263367118156\">Grau de Nanoci\u00e8ncia i Nanotecnologia<\/a>\u00a0de la Universitat Aut\u00f2noma de Barcelona.<\/p>\n<p>El seu objectiu \u00e9s\u00a0introduir l\u2019alumnat d\u2019ensenyament secundari en els conceptes b\u00e0sics de la nanotecnologia i fomentar l\u2019inter\u00e8s per les disciplines cientifico-t\u00e8cniques.<\/p>\n<p>El NanoKit consta d\u2019una col\u00b7lecci\u00f3 de materials, productes i reactius acompanyats de les corresponents\u00a0<a href=\"https:\/\/agora.xtec.cat\/cesire\/categoria\/projectes\/nano\/\">fitxes i activitats per a fer un nanotast a l\u2019aula<\/a>.<\/p>\n<p>Les experimentacions s\u00f3n les seg\u00fcents:<\/p>\n<p><strong>I\u00a0 MATERIALS\u00a0 HIDR\u00d2FOBS I EFECTE LOTUS<\/strong><\/p>\n<p><strong>II MATERIALS CORE SHELL I NANOENCAPSULACIONS<\/strong><\/p>\n<p><strong>III\u00a0 MATERIALS AMB PROPIETATS ESPECIALS: NITINOL I GRAF\u00c8<\/strong><\/p>\n<p><strong>IV\u00a0 MATERIALS FUNGIC\u00cdDES : LES NANOPART\u00cdCUL\u00b7LES DE PALTA<\/strong><\/p>\n<p><strong>V\u00a0 MATERIALS PIEZOEL\u00c8CTRICS<\/strong><\/p>\n<p><strong><u>I\u00a0 MATERIALS\u00a0 HIDR\u00d2FOBS I EFECTE LOTUS<\/u><\/strong><\/p>\n<p>En aquest experiment observarem la capacitat que tenen els materials per absorbir o repel\u00b7lir l\u2019aigua.<\/p>\n<p>Aix\u00ed doncs anomenarem com a materials hidr\u00f2fobs tots aquells que repel\u00b7leixen l\u2019aigua i per tant siguin dif\u00edcils de mullar, contr\u00e0riament els materials hidr\u00f2fils seran aquells materials que tenen afinitat per l\u2019aigua i que podem mullar f\u00e0cilment.<\/p>\n<p>En aquest experiment associarem la capacitat hidr\u00f2foba del material amb la forma que agafen les gotes d\u2019aigua quan cauen damunt seu.<\/p>\n<p>Segons les nostres experi\u00e8ncies hem observat que com m\u00e9s hidr\u00f2fob \u00e9s un material m\u00e9s esf\u00e8rica \u00e9s la gota d\u2019aigua. En canvi si el material \u00e9s hidr\u00f2fil les gotes d\u2019aigua agafen una forma m\u00e9s aplanada.<\/p>\n<p>Tamb\u00e9 estudiarem l\u2019<strong><em>efecte Lotus<\/em><\/strong> que \u00e9s el que explica la capacitat <strong>superhidr\u00f2foba<\/strong>\u00a0 d\u2019alguns elements i plantes naturals; seria el cas de la planta de lotus, que \u00e9s una planta asi\u00e0tica que per molt que li caigui aigua a damunt, les gotes acaben rodolant sobre la superf\u00edcie sense arribar a mullar la fulla.<\/p>\n<p>Aquest exemple portat a casa nostra el trobar\u00edem en les fulles del br\u00f2quil o col.<\/p>\n<p>L\u2019efecte lotus \u00e9s un exemple de biomim\u00e8tica i presenta grans avantatges com la capacitat d&#8217;auto neteja, ja que les gotes d\u2019aigua quan rodolen sobre la superf\u00edcie netegin i s\u2019emportin la brut\u00edcia i les part\u00edcules de pols.<\/p>\n<table style=\"width: 100%; border-collapse: collapse; border-style: none;\">\n<tbody>\n<tr>\n<td style=\"width: 50%; 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border-style: none;\"><iframe loading=\"lazy\" src=\"https:\/\/drive.google.com\/file\/d\/1Mn25L5JwkydserplpgsL_BNYVE7MnJTz\/preview\" width=\"640\" height=\"480\"><\/iframe><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A l\u2019assignatura de tecnologia de 3r d\u2019ESO , hem estat treballant els nous materials i les seves propietats i gr\u00e0cies als companys del centre de recursos pedag\u00f2gics de la Noguera hem pogut portar a la pr\u00e0ctica els conceptes te\u00f2rics amb les maletes pedag\u00f2giques del NANOEDUCA&hellip;  <a href=\"https:\/\/agora.xtec.cat\/insponts\/general\/experimentacions-de-les-propietats-de-nous-materials\/\" title=\"Read Experimentacions de les propietats de nous materials\">Llegeix m\u00e9s\u00bb<\/a><\/p>\n","protected":false},"author":87,"featured_media":3676,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[1,29],"tags":[],"class_list":["post-3623","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-general","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/posts\/3623","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/users\/87"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/comments?post=3623"}],"version-history":[{"count":3,"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/posts\/3623\/revisions"}],"predecessor-version":[{"id":3702,"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/posts\/3623\/revisions\/3702"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/media\/3676"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/media?parent=3623"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/categories?post=3623"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/insponts\/wp-json\/wp\/v2\/tags?post=3623"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}