{"id":694,"date":"2018-09-17T13:29:00","date_gmt":"2018-09-17T13:29:00","guid":{"rendered":"https:\/\/olgapayan.com\/?p=694"},"modified":"2025-04-04T12:22:02","modified_gmt":"2025-04-04T12:22:02","slug":"tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i","status":"publish","type":"post","link":"https:\/\/olgapayan.com\/es\/tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i\/","title":{"rendered":"Tratamientos Hidrofugantes, Superhidrofugantes y Autolimpiantes en Roca Monumentales (I)"},"content":{"rendered":"<p>[et_pb_section fb_built=\u00bb1&#8243; specialty=\u00bbon\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb custom_padding=\u00bb||15px|||\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb3_4&#8243; specialty_columns=\u00bb3&#8243; _builder_version=\u00bb4.16&#8243; custom_padding=\u00bb|||\u00bb global_colors_info=\u00bb{}\u00bb custom_padding__hover=\u00bb|||\u00bb][et_pb_row_inner _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column_inner saved_specialty_column_type=\u00bb3_4&#8243; _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb||18px|||\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<h2>TRACTAMENTS HIDROFUGANTS, SUPERHIDROFUGANTS I AUTONETEJANTS EN ROQUES MONUMENTALS (I)\u00a0<\/h2>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/olgapayan.com\/wp-content\/uploads\/2025\/04\/jay-castor-140248-unsplash.jpg\u00bb title_text=\u00bbjay-castor-140248-unsplash\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb text_font_size=\u00bb14px\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p style=\"text-align: center;\">Photo by <a href=\"https:\/\/unsplash.com\/photos\/7AcMUSYRZpU?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText\">Jay Castor<\/a> on <a href=\"https:\/\/unsplash.com\/search\/photos\/lotus?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText\">Unsplash<\/a><\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb hover_enabled=\u00bb0&#8243; global_colors_info=\u00bb{}\u00bb sticky_enabled=\u00bb0&#8243;]<\/p>\n<p>Com ja hem vist, la consolidaci\u00f3 \u00e9s una intervenci\u00f3 que t\u00e9 com a objectiu retornar a les roques patrimonials les seves propietats i caracter\u00edstiques mec\u00e0niques. Despr\u00e9s d\u2019aquesta operaci\u00f3, \u00e9s molt recomanable aplicar un tractament hidrofugant capa\u00e7 de crear, a la superf\u00edcie tractada, un efecte hidrof\u00f2bic.<\/p>\n<p>Amb aquesta nova intervenci\u00f3 es pret\u00e9n impedir, o almenys limitar, l\u2019entrada d\u2019aigua l\u00edquida a l\u2019interior dels materials de construcci\u00f3, un dels principals agents d\u2019alteraci\u00f3 de les roques. Tot i aix\u00f2, perqu\u00e8 aquest tractament sigui adequat, tamb\u00e9 ha de permetre l\u2019intercanvi de vapor d\u2019aigua entre l\u2019interior de la roca i l\u2019ambient. Una superf\u00edcie totalment impermeable seria perjudicial en edificacions que pateixen, per exemple, humitats als paraments per ascens capil\u00b7lar. A m\u00e9s, \u00e9s necessari que aquests tractaments siguin raonablement estables davant altres agents d\u2019alteraci\u00f3 i tamb\u00e9 davant l\u2019envelliment.<\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/olgapayan.com\/wp-content\/uploads\/2025\/04\/IMG_20181125_133108cc.jpg\u00bb title_text=\u00bbIMG_20181125_133108\u00e7\u00e7\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb text_font_size=\u00bb14px\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p style=\"text-align: center;\">Comportament d\u2019una gota d\u2019aigua en una zona tractada i una altra sense tractament hidrofugant<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb hover_enabled=\u00bb0&#8243; locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb sticky_enabled=\u00bb0&#8243;]<\/p>\n<p>La capacitat d\u2019un material per ser hidrofugant est\u00e0 condicionada per dues propietats:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>La hidrofobicitat<\/li>\n<li>La repel\u00b7l\u00e8ncia a l\u2019aigua<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Aquestes dues propietats ens aporten la informaci\u00f3 necess\u00e0ria sobre la capacitat de penetraci\u00f3 i adhesi\u00f3 de l\u2019aigua l\u00edquida a una superf\u00edcie, i estan supeditades a la qu\u00edmica superficial i a la rugositat del material.<\/p>\n<p>La capacitat d\u2019un l\u00edquid per estendre\u2019s sobre una superf\u00edcie s\u00f2lida dep\u00e8n de les forces intermoleculars cohesives i adhesives dels dos materials que estan en contacte. Aquesta capacitat est\u00e0 determinada pels angles de contacte est\u00e0tics d\u2019una gota d\u2019aigua sobre una superf\u00edcie. Si aquest angle \u00e9s igual o superior a 90\u00ba, la superf\u00edcie d\u2019aquell material tindr\u00e0 propietats hidrof\u00f2biques.<\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/olgapayan.com\/wp-content\/uploads\/2025\/04\/IMG_20181125_133042klkl.jpg\u00bb title_text=\u00bbIMG_20181125_133042klkl\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb text_font_size=\u00bb14px\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p style=\"text-align: center;\">Superf\u00edcie hidr\u00f2fila<\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/olgapayan.com\/wp-content\/uploads\/2025\/04\/IMG_20181125_133051lnll.jpg\u00bb title_text=\u00bbIMG_20181125_133051l\u00f1ll\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb text_font_size=\u00bb14px\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p style=\"text-align: center;\">Superf\u00edcie hidr\u00f2foba<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb hover_enabled=\u00bb0&#8243; locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb sticky_enabled=\u00bb0&#8243;]<\/p>\n<p>L\u2019aigua \u00e9s una subst\u00e0ncia polar formada per mol\u00e8cules amb dos \u00e0toms d\u2019hidrogen i un d\u2019oxigen. Si mullem un material format per mol\u00e8cules polars, les mol\u00e8cules d\u2019aigua s\u2019uniran entre elles i, a m\u00e9s, establiran f\u00e0cilment unions amb la superf\u00edcie, provocant que les gotes s\u2019estenguin i mullin. En aquest cas parlarem d\u2019una superf\u00edcie hidrof\u00edlica.<\/p>\n<p>En canvi, si la superf\u00edcie \u00e9s apolar, les mol\u00e8cules d\u2019aigua tindran tend\u00e8ncia a unir-se entre elles amb molta m\u00e9s facilitat que amb la superf\u00edcie, i les gotes no s\u2019estendran. \u00c9s un material hidrof\u00f2bic.<\/p>\n<p>La repel\u00b7l\u00e8ncia a l\u2019aigua d\u2019una superf\u00edcie \u00e9s la difer\u00e8ncia entre l\u2019angle d\u2019avan\u00e7ament (\u03b8A) i l\u2019angle de retroc\u00e9s (\u03b8R), \u00e9s a dir, la hist\u00e8resi de l\u2019angle de contacte. La repel\u00b7l\u00e8ncia \u00e9s la for\u00e7a requerida per moure una gota d\u2019aigua dipositada sobre una superf\u00edcie: com m\u00e9s petita sigui la hist\u00e8resi de l\u2019angle de contacte, m\u00e9s facilitat tindran les gotes per lliscar i la superf\u00edcie ser\u00e0 m\u00e9s repel\u00b7lent a l\u2019aigua.<\/p>\n<p>Una superf\u00edcie tamb\u00e9 pot tenir caracter\u00edstiques superhidrof\u00f2biques quan, en dipositar-hi una gota d\u2019aigua, aquesta forma un angle de contacte est\u00e0tic superior als 120\u00ba i la difer\u00e8ncia entre l\u2019angle d\u2019avan\u00e7ament i de retroc\u00e9s \u00e9s inferior a 10\u00ba. Aquesta gota es mant\u00e9 a la superf\u00edcie amb una forma gaireb\u00e9 esf\u00e8rica que evita que penetri en l\u2019estructura i, finalment, roda per la superf\u00edcie sense deixar rastre. Aquest \u00e9s l\u2019anomenat \u201cefecte lotus\u201d, pel qual les gotes d\u2019aigua de pluja llisquen per la superf\u00edcie de les fulles, arrossegant alhora les petites part\u00edcules que hi puguin estar dipositades i generant un efecte autonetejant.<\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/olgapayan.com\/wp-content\/uploads\/2025\/04\/IMG_20181125_133101lnln.jpg\u00bb title_text=\u00bbIMG_20181125_133101l\u00f1l\u00f1\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb text_font_size=\u00bb14px\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p style=\"text-align: center;\">Superf\u00edcie superhidrof\u00f2bica<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb hover_enabled=\u00bb0&#8243; locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb sticky_enabled=\u00bb0&#8243;]<\/p>\n<p>Aquest efecte est\u00e0 vinculat a una superf\u00edcie estructurada en dos nivells, amb elevacions o papil\u00b7les arrodonides de mida microm\u00e8trica, sobre les quals es reparteixen uns petits fils de mida nanom\u00e8trica, recoberts, a m\u00e9s, d\u2019una subst\u00e0ncia cerosa. Aquestes superf\u00edcies estan adaptades i combinen propietats f\u00edsiques i qu\u00edmiques que fan que les gotes que hi cauen quedin suspeses i arrosseguin amb molta facilitat les part\u00edcules de brut\u00edcia.<\/p>\n<p>[\/et_pb_text][et_pb_image src=\u00bbhttps:\/\/olgapayan.com\/wp-content\/uploads\/2025\/04\/IMG_20181125_133116jkjkjkj.jpg\u00bb title_text=\u00bbIMG_20181125_133116jkjkjkj\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb text_font_size=\u00bb14px\u00bb locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<p style=\"text-align: center;\">Estructura superficial d\u2019una fulla de lotus<\/p>\n<p>[\/et_pb_text][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb hover_enabled=\u00bb0&#8243; locked=\u00bboff\u00bb global_colors_info=\u00bb{}\u00bb sticky_enabled=\u00bb0&#8243;]<\/p>\n<p>Els productes basats en nanomaterials permeten imitar, de manera artificial, aquests efectes sobre la superf\u00edcie dels monuments i modificar la capacitat d\u2019adhesi\u00f3 i penetraci\u00f3 de l\u2019aigua l\u00edquida a les roques.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.youtube.com\/watch?v=VHcd_4ftsNY\">https:\/\/www.youtube.com\/watch?v=VHcd_4ftsNY<\/a><\/p>\n<p>[\/et_pb_text][\/et_pb_column_inner][\/et_pb_row_inner][\/et_pb_column][et_pb_column type=\u00bb1_4&#8243; _builder_version=\u00bb4.16&#8243; custom_padding=\u00bb|||\u00bb global_colors_info=\u00bb{}\u00bb custom_padding__hover=\u00bb|||\u00bb][et_pb_text _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb header_3_font_size=\u00bb30px\u00bb custom_margin=\u00bb||||false|false\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n<h3>M\u00e9s not\u00edcies<\/h3>\n<p>[\/et_pb_text][et_pb_blog posts_number=\u00bb4&#8243; include_categories=\u00bball\u00bb use_manual_excerpt=\u00bboff\u00bb show_author=\u00bboff\u00bb show_categories=\u00bboff\u00bb show_excerpt=\u00bboff\u00bb _builder_version=\u00bb4.27.4&#8243; _module_preset=\u00bbdefault\u00bb header_font_size=\u00bb25px\u00bb meta_font=\u00bb&#8211;et_global_heading_font||||||||\u00bb meta_font_size=\u00bb15px\u00bb border_radii_fullwidth=\u00bbon|10px|10px|10px|10px\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_blog][\/et_pb_column][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>TRACTAMENTS HIDROFUGANTS, SUPERHIDROFUGANTS I AUTONETEJANTS EN ROQUES MONUMENTALS (I)\u00a0Photo by Jay Castor on UnsplashCom ja hem vist, la consolidaci\u00f3 \u00e9s una intervenci\u00f3 que t\u00e9 com a objectiu retornar a les roques patrimonials les seves propietats i caracter\u00edstiques mec\u00e0niques. Despr\u00e9s d\u2019aquesta operaci\u00f3, \u00e9s molt recomanable aplicar un tractament hidrofugant capa\u00e7 de crear, a la superf\u00edcie tractada, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":695,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"2880","footnotes":""},"categories":[1],"tags":[],"class_list":["post-694","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tractaments Hidrofugants, Superhidrofugants i Autonetejants en Roca Monumentals (I) - Olga Payan<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/olgapayan.com\/es\/tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tractaments Hidrofugants, Superhidrofugants i Autonetejants en Roca Monumentals (I) - Olga Payan\" \/>\n<meta property=\"og:description\" content=\"TRACTAMENTS HIDROFUGANTS, SUPERHIDROFUGANTS I AUTONETEJANTS EN ROQUES MONUMENTALS (I)\u00a0Photo by Jay Castor on UnsplashCom ja hem vist, la consolidaci\u00f3 \u00e9s una intervenci\u00f3 que t\u00e9 com a objectiu retornar a les roques patrimonials les seves propietats i caracter\u00edstiques mec\u00e0niques. Despr\u00e9s d\u2019aquesta operaci\u00f3, \u00e9s molt recomanable aplicar un tractament hidrofugant capa\u00e7 de crear, a la superf\u00edcie tractada, [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/olgapayan.com\/es\/tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i\/\" \/>\n<meta property=\"og:site_name\" content=\"Olga Payan\" \/>\n<meta property=\"article:published_time\" content=\"2018-09-17T13:29:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-04-04T12:22:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/olgapayan.com\/wp-content\/uploads\/2025\/04\/jay-castor-140248-unsplash.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"1066\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tiempo de lectura\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/olgapayan.com\\\/tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/olgapayan.com\\\/tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/olgapayan.com\\\/#\\\/schema\\\/person\\\/18b4c46a165d690539f25273ac5db0f3\"},\"headline\":\"Tractaments Hidrofugants, Superhidrofugants i Autonetejants en Roca Monumentals (I)\",\"datePublished\":\"2018-09-17T13:29:00+00:00\",\"dateModified\":\"2025-04-04T12:22:02+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/olgapayan.com\\\/tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i\\\/\"},\"wordCount\":1366,\"image\":{\"@id\":\"https:\\\/\\\/olgapayan.com\\\/tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/olgapayan.com\\\/wp-content\\\/uploads\\\/2025\\\/04\\\/jay-castor-140248-unsplash.jpg\",\"articleSection\":[\"blog\"],\"inLanguage\":\"es\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/olgapayan.com\\\/tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i\\\/\",\"url\":\"https:\\\/\\\/olgapayan.com\\\/tractaments-hidrofugants-superhidrofugants-i-autonetejants-en-roca-monumentals-i\\\/\",\"name\":\"Tractaments Hidrofugants, Superhidrofugants i Autonetejants en Roca Monumentals (I) - 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