{"corpus_id":6908394,"paper_sha":"abb1bd7a1904cca8e639c6ee9b93f3be2a560a56","doi":"10.1038/srep08701","arxiv_id":null,"pmid":25731716,"pmcid":"4346800","mag_id":1969784214,"dblp_id":null,"acl_id":null,"title":"Mechanically durable, superoleophobic coatings prepared by layer-by-layer technique for anti-smudge and oil-water separation","year":2015,"publication_date":"2015-03-03","venue":"Scientific Reports","journal":{"name":"Scientific Reports","pages":null,"volume":"5"},"journal_issn":null,"journal_title":null,"publication_types":["JournalArticle"],"pubmed_pub_types":["Journal Article","Research Support, Non-U.S. Gov't"],"s2_fields_of_study":["Medicine","Materials Science"],"reference_count":66,"citation_count":204,"influential_citation_count":0,"is_open_access":true,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":5,"s2_open_access_pdf_url":"https://www.nature.com/articles/srep08701.pdf","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/abb1bd7a1904cca8e639c6ee9b93f3be2a560a56","s2_open_access_license":"CCBY","s2_open_access_status":"GOLD","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Superoleophobic surfaces are of interest for anti-fouling, self-cleaning, anti-smudge, low-drag, anti-fog and oil-water separation applications. Current bioinspired surfaces are of limited use due to a lack of mechanical durability. A so-called layer-by-layer approach, involving charged species with electrostatic interactions between layers, can provide the flexibility needed to improve adhesion to the substrate while providing a low surface tension coating at the air interface. In this work, a polyelectrolyte binder, SiO2 nanoparticles and a fluorosurfactant are spray deposited separately to create a durable, superoleophobic coating. Polydiallyldimethylammonium chloride (PDDA) polyelectrolyte was complexed with a fluorosurfactant layer (FL), which provides oil repellency while being hydrophilic. This oleophobic/superhydrophilic behavior was enhanced through the use of roughening with SiO2 particles resulting in a superoleophobic coating with hexadecane contact angles exceeding 155° and tilt angles of less than 4°. The coating is also superhydrophilic, which is desirable for oil-water separation applications. The durability of these coatings was examined through the use of micro- and macrowear experiments. These coatings currently display characteristics of transparency. Fabrication of these coatings via the layer-by-layer technique results in superoleophobic surfaces displaying improved durability compared to existing work where either the durability or the oil-repellency is compromised.","claims":[{"public_id":"cl_a5e7c6a676b3ff56ee8121962139fdef","status":"active","text":"A polyelectrolyte binder, SiO2 nanoparticles, and a fluorosurfactant were spray deposited separately to create a durable superoleophobic coating.","confidence":0.96,"contributors":[{"id":35,"public_id":"b2adb6bfad","public_label":"Anonymous (b2adb6bfad)","roles":["extraction"],"url":"https://sah.borca.ai/u/b2adb6bfad"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ 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oleophobic and superhydrophilic behavior, producing a superoleophobic coating with hexadecane contact angles exceeding 155° and tilt angles below 4°.","confidence":0.97,"contributors":[{"id":35,"public_id":"b2adb6bfad","public_label":"Anonymous (b2adb6bfad)","roles":["extraction"],"url":"https://sah.borca.ai/u/b2adb6bfad"},{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["review"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_4851de59bca0ff49a8864fea0c79a64a"}],"concepts":[{"public_id":"co_03d1f7083a57d55c82bdbab2f0082409","status":"active","name":"mechanical durability","description":"The coating's ability to retain performance under mechanical wear or damage.","types":["performance property"],"aliases":[],"contributors":[{"id":35,"public_id":"b2adb6bfad","public_label":"Anonymous 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