Analysis and surface energy estimation of various model polymeric surfaces using contact angle hysteresis
Analysis and surface energy estimation of various model polymeric surfaces using contact angle hysteresis
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DOI：
10.1163/156856107782844800
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发表时间：
2007-01
影响因子：
2.3
通讯作者：
Ilker S. Bayer;C. Megaridis;Jie Zhang;D. Gamota;A. Biswas
中科院分区：
文献类型：
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作者：
Ilker S. Bayer;C. Megaridis;Jie Zhang;D. Gamota;A. Biswas
使用Chibowski及其同事开发的接触角滞后（CAH）方法分析了电子涂层中常用的疏水性聚合物表面的润湿及其与表面活性剂负载液体和水性聚合物溶液的相互作用。此外，还使用了一些低表面张力的丙烯酸单体液体以及常见的探针液体来估计涂层的固体表面能，以便于深入分析表面活性剂在粘附中的作用。关于表面活性剂负载的液体在聚合物表面上的接触角迟滞的大量文献数据是可用的，并且在这里使用它们来估计固体表面能，以便进一步理解并与目前的实验数据进行比较。在某些情况下，粘附张力图被用来解释表面活性剂和聚合物溶液对表面的润湿。用接触角滞后法分析了表面活性剂对超疏水表面的润湿作用。最后，利用Timmons和Zisman在疏水自组装单层（SAM）表面的详细实验，详细分析了探针液体分子结构对接触角滞后的影响。在本实验中使用的疏水性表面包括缩醛树脂[聚（氧甲基），POM]表面，硅烷，硅氧烷和氟丙烯酸涂层。与文献数据相关的模型表面包括石蜡、聚甲基丙烯酸甲酯和纳米纹理表面。基于上述结果，建议在实际涂料应用中，在考虑表面活性剂和丙烯酸配方的情况下，可以使用表面活性剂探针液对固体表面能进行初步评价和分析，以定制和确定最终涂层的质量。
Wetting of hydrophobic polymer surfaces commonly employed in electronic coatings and their interaction with surfactant-laden liquids and aqueous polymer solutions are analyzed using a contact angle hysteresis (CAH) approach developed by Chibowski and co-workers. In addition, a number of low surface tension acrylic monomer liquids, as well as common probe liquids are used to estimate solid surface energy of the coatings in order to facilitate a thorough analysis of surfactant effects in adhesion. Extensive literature data on contact angle hysteresis of surfactant-laden liquids on polymeric surfaces are available and are used here to estimate solid surface energy for further understanding and comparisons with the present experimental data. In certain cases, adhesion tension plots are utilized to interpret wetting of surfaces by surfactant and polymer solutions. Wetting of an ultra-hydrophobic surface with surfactant-laden liquids is also analyzed using the contact angle hysteresis method. Finally, a detailed analysis of the effect of probe liquid molecular structure on contact angle hysteresis is given using the detailed experiments of Timmons and Zisman on a hydrophobic self-assembled monolayer (SAM) surface. Hydrophobic surfaces used in the present experiments include an acetal resin [poly(oxymethylene), POM] surface, and silane, siloxane and fluoro-acrylic coatings. Model surfaces relevant to the literature data include paraffin wax, poly(methyl methacrylate) and a nano-textured surface. Based on the results, it is suggested that for practical coating applications in which surfactant-laden and acrylic formulations are considered, a preliminary evaluation and analysis of solid surface energy can be made using surfactant-laden probe liquids to tailor and ascertain the quality of the final coating.