Polyurethane cationomer coats were synthesised on the basis of typical diisocyanates, properly selected polyether polyols, HO-tertiary amines and HCOOH as quaternisation reagents. The values of their surface free energy (SFE) parameters were obtained by the van Oss-Good method, with the use of the contact angle values which had been found by the goniometric method. Based on the obtained findings, empirical models were developed which made it possible to anticipate the effects of the raw material types on the SFE values of the produced coats. The possibility was noted to adjust the SFE values within 25–50 mJ/m2 by selecting carefully suitable parent substances. The principal consequences for the formation of improved hydrophobicity coats, applicable inter alia specialised protective coatings, were found to come not only from diisocyanate and polyol types but also from the alkylammonium cation structure which results from the use of different tertiary amines. The fundamental SFE lowering effect was noted when tertiary amines with 0–15 % of the 2,2,3,3-tetrafluoro-1,4-butanediol as a fluorinated chain extender was incorporated into polymer chains.

中文翻译：

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对聚氨酯涂层的表面自由能参数进行建模——第 2 部分。从阳离子聚氨酯获得的水性涂层

Polyurethane cationomer coats were synthesised on the basis of typical diisocyanates, properly selected polyether polyols, HO-tertiary amines and HCOOH as quaternisation reagents. 它们的表面自由能 (SFE) 参数值是通过 van Oss-Good 方法获得的，使用的是通过测角法发现的接触角值。基于获得的发现，开发了经验模型，可以预测原材料类型对所生产涂层的 SFE 值的影响。注意到通过仔细选择合适的母体物质将 SFE 值调整在 25-50 mJ/m2 范围内的可能性。形成改进的疏水性涂层的主要结果，特别是适用的专用保护涂层，发现不仅来自二异氰酸酯和多元醇类型，而且来自使用不同叔胺产生的烷基铵阳离子结构。当将含有 0–15% 的 2,2,3,3-四氟-1,4-丁二醇作为氟化扩链剂的叔胺掺入聚合物链时，会注意到基本的 SFE 降低效果。