{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T18:50:51Z","timestamp":1792090251337,"version":"4.4.0"},"reference-count":43,"publisher":"American Chemical Society (ACS)","license":[{"start":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T00:00:00Z","timestamp":1792022400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100019923","name":"DEVCOM Army Research Laboratory","doi-asserted-by":"publisher","award":["W911QY2420001"],"award-info":[{"award-number":["W911QY2420001"]}],"id":[{"id":"10.13039\/100019923","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100020855","name":"University of Massachusetts Lowell","doi-asserted-by":"publisher","award":["S51310000060045"],"award-info":[{"award-number":["S51310000060045"]}],"id":[{"id":"10.13039\/100020855","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Industry-standard textile liquid repellency tests, including AATCC TM118 for non-polar oils and AATCC TM193 for polar water\/isopropanol (IPA) mixtures, classified performance primarily according to liquid surface tension (\u03b3LV). In this study, we systematically compared the wetting of seven non-polar n-alkanes and seven polar water\/IPA mixtures with matched surface tensions (21\u201332 mN\/m) on a PFAS-free siloxane-based chemistry applied to both a smooth surface (glass) and a rough surface (woven nylon\/cotton fabric). Contact angle measurements revealed that polar liquids consistently exhibited higher intrinsic contact angles than non-polar liquids with a comparable liquid surface tension \u03b3LV, demonstrating that liquid polarity plays a critical role beyond total surface tension alone. Surface energy analysis using Wu's harmonic-mean model attributed this divergence to the solid\u2013liquid interfacial tension (\u03b3SL): non-polar liquids produced \u03b3SL values close to zero, whereas polar liquids exhibited substantially higher \u03b3SL values (approximately 6\u201318 mN\/m). Hansen solubility parameter analysis further showed that the stronger affinity between non-polar oils and the siloxane-based surface promoted absorption and lowered interfacial resistance, providing a molecular explanation for their inferior repellency. On rough textile substrates, the non-polar liquids also exhibited enhanced wetting and a greater tendency to undergo Cassie-to-Wenzel transitions compared with polar liquids, despite having similar surface tensions. These findings demonstrate that liquid polarity and chemical affinity, rather than \u03b3LV alone, govern PFAS-free liquid repellency. We therefore propose that \u03b3SL and Hansen solubility distance (Ra) provide more physically meaningful descriptors for designing next-generation fluorine-free liquid-repellent textiles with improved resistance to low-surface-tension liquids.<\/jats:p>","DOI":"10.1021\/acsami.6c17419","type":"journal-article","created":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T18:01:39Z","timestamp":1792087299000},"source":"Crossref","is-referenced-by-count":0,"title":["Beyond Surface Tension: Polarity-Governed Liquid Repellency of Siloxane Finish"],"prefix":"10.1021","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6160-6389","authenticated-orcid":true,"given":"Florence","family":"Acha","sequence":"first","affiliation":[{"name":"University of Massachusetts Lowell , , , ,","place":["Lowell, Massachusetts, United States, 01854"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hanna","family":"Dodiuk","sequence":"additional","affiliation":[{"name":"Shenkar College , , ,","place":["Ramat Gan, Israel, 5252626"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samuel","family":"Kenig","sequence":"additional","affiliation":[{"name":"Shenkar College , , ,","place":["Ramat Gan, Israel, 5252626"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Margaret","family":"Auerbach","sequence":"additional","affiliation":[{"name":"U.S. Army Combat Capabilities Development Command Soldier Center , , ,","place":["Natick, Massachusetts, United States, 01760"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Robert","family":"Stote","sequence":"additional","affiliation":[{"name":"U.S. Army Combat Capabilities Development Command Soldier Center , , ,","place":["Natick, Massachusetts, United States, 01760"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evan","family":"Katsoudas","sequence":"additional","affiliation":[{"name":"University of Massachusetts Lowell , , , ,","place":["Lowell, Massachusetts, United States, 01854"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0631-859X","authenticated-orcid":true,"given":"Joey","family":"Mead","sequence":"additional","affiliation":[{"name":"University of Massachusetts Lowell , , , ,","place":["Lowell, Massachusetts, United States, 01854"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2388-7826","authenticated-orcid":true,"given":"Jinde","family":"Zhang","sequence":"additional","affiliation":[{"name":"University of Massachusetts Lowell , , , ,","place":["Lowell, Massachusetts, United States, 01854"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,10,15]]},"reference":[{"key":"2026101514012918300_cit1","doi-asserted-by":"publisher","first-page":"503","DOI":"10.1016\/j.pmatsci.2012.11.001","article-title":"Bio-Inspired Superoleophobic and Smart Materials: Design, Fabrication, and Application","volume":"58","author":"Liu","year":"2013","journal-title":"Prog. 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