Wetting Properties of Seven Phosphonium Cation-Based Ionic Liquids

被引：26
作者：
Blanco, D. [1 ]
Bartolome, M. [2 ]
Ramajo, B. [3 ]
Viesca, J. L. [1 ,4 ]
Gonzalez, R. [2 ,4 ]
Hernandez Battez, A. [1 ,4 ]
机构：
[1] Univ Oviedo, Dept Construct & Mfg Engn, Asturias, Spain
[2] Univ Oviedo, Dept Marine Sci & Technol, Asturias, Spain
[3] Univ Oviedo, Dept Phys & Analyt Chem, Asturias, Spain
[4] Bournemouth Univ, Dept Design & Engn, Poole BH12 5BB, Dorset, England
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2016年 / 55卷 / 36期
关键词：
SURFACE FREE-ENERGY; THERMOPHYSICAL PROPERTIES; CONTACT-ANGLE; PHYSICAL-PROPERTIES; CHAIN-LENGTH; PVD-COATINGS; ETHYL-DIMETHYL-2-METHOXYETHYLAMMONIUM TRIS(PENTAFLUOROETHYL)TRIFLUOROPHOSPHATE; ANTIWEAR PERFORMANCE; LUBRICANT ADDITIVES; TENSION;
D O I：
10.1021/acs.iecr.6b00821
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This paper studies the wetting properties of seven phosphonium cation-based ionic liquids: trihexyltetradecylphosphonium bis(2,4,4-trimethylpentyl) phosphinate [P-66614][(iC8)(2)PO2], trihexyltetradecylphosphonium bis(2-ethylhexyl)phosphate [P-66614][BEHP], trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl) imide [P-66614][NTf2], tributyltetradecylphosphonium dodecylbenzenesulfonate [P-44414][DBS], tributylethylphosphonium diethylphosphate [P-4442][DEP], trihexyltetradecylphosphonium dicyanamide [P-66614][DCA], and trihexyltetradecylphosphonium chloride [P-66614][Cl]. The surface tension was analyzed using the Gibbs free energy in a temperature range of 293-353 K, obtaining the expected linear decrease with temperature rise. The contact angle was measured on four different surfaces (AISI 52100 steel, CrN, TiN, and ZrN) and all liquids with high surface tensions interacting with hydrophobic systems displayed high contact angles as expected. The polarity fraction (PF) and the spreading parameter (SP) were estimated to complete and improve the wetting characterization of these ionic liquids, finding TiN-[P-66614][BEHP] and TiN-[P-66614][(iC8)(2)PO2] as the most favorable surface-ionic liquid combinations from a wetting point of view.
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收藏
页码：9594 / 9602
页数：9
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