Phase equilibria and the surface tension of polypropylene polyol series in water/methanol mixtures: A consideration of structural effects

Lee, Chan Hee; Yang, Hee Jun; Bae, Young Chan; Oh, Jeong Seok

doi:10.1016/j.polymer.2018.05.035

Cited by 6 publications

(5 citation statements)

References 73 publications

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“…The deviations of the densities and surface tensions of alcohols (methanol and ethanol) − and [C 1 OC 2 pyrr][NTf 2 ] were compared with the literature values − at T = (288.15–318.15) K and p = 0.1 MPa as listed in Table S1, and the percent relative deviations (RD%) was calculated by the following equation: normalR normalD % = 100 ( P exp − P lit ) / P lit where P exp is density or surface tension of experimental value, and P lit stands for the value of density or surface tension in the literature, the RD % values were listed in Table S1 and shown in Figure and Figure .…”

Section: Results and Discussionmentioning

confidence: 99%

Volumetric Properties, Molar Surface Gibbs Energy, and Its Application of Binary Systems Containing Ether-Group Functionalized Ionic Liquid with Monohydric Alcohols

Zhang

et al. 2023

J. Chem. Eng. Data

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Ether-group functionalized ionic liquid N-(2m e t h o x y e t h y l ) -N -m e t h y l p y r r o l i d i n i u m b i s -(trifluoromethylsulfonyl)amide, [C 1 OC 2 pyrr][NTf 2 ], was synthesized and characterized by 1 H NMR, 13 C NMR, and TGA. The density and surface tension of binary mixtures including [C 1 OC 2 pyrr][NTf 2 ] and monohydric alcohols were measured over the entire range of mole fractions in different temperatures.Based on the experimental data of density and surface tension, the volumetric and surface properties of [C 1 OC 2 pyrr][NTf 2 ] and its binary mixtures were obtained, and V m , α p , and V E were explored. The effects of temperature and composition on these properties were investigated, and the excess molar volume of two binary mixtures was well fitted by the Redlick-Kister equation. The molar surface Gibbs energy (g s ) of [C 1 OC 2 pyrr][NTf 2 ] and its binary mixtures was calculated, and the traditional Eoẗvos equation was modified; moreover, all parameters had a clear physical meaning. Finally, based on g s , the surface tension of [C 1 OC 2 pyrr][NTf 2 ] and its binary mixtures was estimated, and it is in good agreement with experimental values.

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Section: Results and Discussionmentioning

confidence: 99%

Volumetric Properties, Molar Surface Gibbs Energy, and Its Application of Binary Systems Containing Ether-Group Functionalized Ionic Liquid with Monohydric Alcohols

Zhang

et al. 2023

J. Chem. Eng. Data

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“…The surface energy of polymeric materials is determined using the intermolecular forces taking into account the various attraction forces occurring between the surface and the adhesive during the bonding of polymeric surfaces (Şekercioğlu and Kaner, 2014;Drelich and Miller, 1995;Shimizu and Demarquette, 2000). In the literature, the surface free energy of polymer composites are widely investigated for fillers of different nature and type such as calcium carbonate, talc and glass fibers (Cantero et al, 2003;Demjen et al, 1998;Drelich and Miller, 1995;Khoshkava and Kamal, 2013;Lee et al, 2018;Rudawska et al, 2017;Shokoohi et al, 2008).…”

Section: Literature Surveymentioning

confidence: 99%

“…Among the various plastic materials classified as thermoplastics, thermosets and elastomers, thermoplastics are widely preferred materials in the industry and have broad usage areas due to their microstructure and particularly to their high formability. For this reason, the adhesion and surface treatment of thermoplastic materials were largely investigated in the literature (Cantero et al, 2003;Lee et al, 2018;Khoshkava and Kamal, 2013;Demjen et al, 1998;Drelich and Miller, 1995;Brandl et al, 2004;Rudawska et al, 2017;Zapata-Massot and Le Bolay, 2007). The process of painting the surface of plastic parts used in the automotive industry is gaining importance day by day.…”

Section: Introductionmentioning

confidence: 99%

Surface Free Energy and Flexural Properties of Wollastonite Filled Polypropylene Composites

Soncu

Akkoyun

2021

Mühendislik Bilimleri Ve Tasarım Dergisi

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Nowadays, appearance is an important factor in vehicles. For this reason, paint application is widely used in plastic parts. Surface energy is a key parameter for the adhesion of paint on the surface of polymers. Among thermoplastic polymers, polycarbonate and acrylonitrile butadiene styrene are commonly used materials due to their higher surface energies. For low surface energy materials, surface energies can be increased using streamer, plasma, corona, mechanical etching and chemical etching methods. The aim of this work is to eliminate the pre-treatments applied to parts produced with polypropylene (PP) polymer using wollastonite (CaSiO3) additive. For this purpose, CaSiO3 filled PP composites containing 40 wt.% wollastonite with different sizes and coatings were produced by extrusion process. Afterwards, plate samples were prepared from granules using a hot pressing device. Flexural properties and surface free energy measurements were performed on these composites produced in plate form. From the results, an increased surface free energy was observed for small particle size and aminosilane coated wollastonite added PP composite with an increase by 23% of the total surface free energy. Flexural strengths were well correlated with the surface free energy results and showed an increase by 1.2% for the same additive.

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“…Thermodynamic modeling for the surface tension of mixtures are typically derived on the assumption that the interface is considered a thin layer separated from the vapor and bulk liquid 30 . There are plenty of research works employing thermodynamics to calculate the surface tension 31–38 . In particular, Prigogine and collaborators presented a relatively simple theory to explain the surface tension of polymer solutions on the basis of thermodynamics 31 .…”

Section: Introductionmentioning

confidence: 99%

“…There have been a few attempts to study both the two different phenomena (i.e., phase equilibria and surface tension) by employing one thermodynamic model. Lee et al 33 and Yang and Bae 34 described an simultaneous interpretation of surface tension and liquid–liquid equilibrium (LLE) for polymer solutions using one model. Their attempts were effective to validate the utility of developed models, but the application of measured systems is limited so far.…”

Section: Introductionmentioning

confidence: 99%

Phase equilibria and surface tension in castor oil‐based polyols‐water–methanol mixture: Thermodynamic basis

Moon

Yang

Lee

et al. 2020

J of Applied Polymer Sci

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Considering the current environmental issues with petro-polymers, castor oil is a promising green alternative to the polyols to be used as the main raw material for polyurethane. However, the basic information regarding the processability of castor oil-based polyol (CP) such as its miscibility in different solvents is still elusive. Herein we have investigated the phase equilibria and surface tension of various CP solutions using thermo-optical analysis and pendent drop method, respectively. The modified double lattice (MDL) model was employed to theoretically describe those phase equilibria and surface behaviors. The phase diagrams of CPs/methanol binary systems represent upper critical solution temperature (UCST) behaviors, and CPs/methanol/water ternary systems show Treybal Type 2 behaviors. The surface tension results exhibit preferential solvent adsorption, which means affinity of the solvent to be present in surface is higher than that of the polymer. The calculated results showed good agreement with the experimental observations.

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Phase equilibria and the surface tension of polypropylene polyol series in water/methanol mixtures: A consideration of structural effects

Cited by 6 publications

References 73 publications

Volumetric Properties, Molar Surface Gibbs Energy, and Its Application of Binary Systems Containing Ether-Group Functionalized Ionic Liquid with Monohydric Alcohols

Volumetric Properties, Molar Surface Gibbs Energy, and Its Application of Binary Systems Containing Ether-Group Functionalized Ionic Liquid with Monohydric Alcohols

Surface Free Energy and Flexural Properties of Wollastonite Filled Polypropylene Composites

Phase equilibria and surface tension in castor oil‐based polyols‐water–methanol mixture: Thermodynamic basis

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