Evaluation of icephobic coatings-Screening of different coatings and influence of roughness
Evaluation of icephobic coatings-Screening of different coatings and influence of roughness
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DOI：
10.1016/j.apsusc.2013.06.073
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发表时间：
2013-10-01
影响因子：
6.7
通讯作者：
Hirayama, Martina
中科院分区：
文献类型：
--
作者：
Susoff, Markus;Siegmann, Konstantin;Hirayama, Martina
风力涡轮机结冰会影响能源生产、导致机械故障并增加总体安全隐患;因此对强大的防结冰方法有巨大的需求。为了研究不同涂层的疏冰性能，使用0度圆锥测试进行冰粘附力测量，以确定涂层和冰之间的冰粘附强度。研究了具有不同憎冰性能的涂料，如：例如，在一个实施例中，亲水和疏水涂层、含有氟化化合物和粘弹性橡胶的溶胶-凝胶基涂层以及市售的疏冰产品。目前在风力涡轮机上使用的涂层显示出与裸铝相当的对冰的粘附力;这意味着对冰的粘附力相当高。在由粘弹性弹性体组成的涂层的情况下，获得非常低的粘附值。此外，表面粗糙度对冰粘附的影响已被检查。用化学和机械方法使铝销粗糙化，并测定其冰粘附力。这些针进一步涂覆有含氟涂层，以研究最小化的表面能的影响。这些涂层销的剪切应力显着降低，然而，粗糙的表面表现出更高的冰粘附比光滑的。(C)2013作者Elsevier B. V.出版，保留所有权利。
Icing of wind turbines affects energy production, causes mechanical failures and increases safety hazards in general; hence there is an enormous demand for powerful anti-icing methods. To investigate the icephobic properties of different coatings, ice adhesion measurements were performed with a 0 degrees cone test to determine ice adhesion strengths between coating and ice. Various coatings with different icephobic properties were investigated, e. g., hydrophilic and hydrophobic coatings, sol-gel based coatings containing fluorinated compounds and viscoelastic rubbers, as well as commercially available icephobic products. The coatings currently used on wind turbines showed an adhesion to ice that is comparable to that of bare aluminium; meaning a quite high adhesion to ice. Very low adhesion values were obtained in the case of coatings consisting of viscoelastic elastomers. Additionally, the influence of surface roughness on ice adhesion has been examined. Aluminium pins were chemically and mechanically roughened and their ice adhesion was determined. These pins were further coated with a fluorine-containing coating in order to study the influence of minimized surface energies. Shear stress of those coated pins was considerably reduced, however, rough surfaces showed higher ice adhesion than smooth ones. (C) 2013 The Authors. Published by Elsevier B.V. All rights reserved.