Volumetric and Viscometric Behavior of Binary Systems 2-Butanol + PEG 200, + PEG 400, + Tetraethylene Glycol Dimethyl Ether, and + <i>N</i>-Methyl-2-pyrrolidone

Živković, Nikola V.; Šerbanović, Slobodanh S.; Kijevčanin, Mirjana Lj.

doi:10.1021/je400486p

Cited by 74 publications

(11 citation statements)

References 22 publications

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“…Values obtained for PEG 400 present a good agreement with viscosity data reported for poly(ethylene glycols) with mass-average molecular masses ranging from 365 to 400 g·mol −1 [ 55 , 62 , 63 , 68 ]. An average deviation of 1.9% is obtained.…”

Section: Resultssupporting

confidence: 85%

“…Density was experimentally obtained for PEG 400 and four fGnP/PEG 400 nanofluids. A comparison between our density values for the base fluid and those previously reported in the literature for poly(ethylene glycols) with molar masses ranging from 365 to 414 g·mol −1 [ 55 , 61 , 62 , 63 , 64 ], shows average deviations below 0.1%. Temperature behaviour of density is plotted for base fluid and 0.10 and 0.50 wt % NePCMs in Figure 9 a.…”

Section: Resultssupporting

confidence: 57%

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PEG 400-Based Phase Change Materials Nano-Enhanced with Functionalized Graphene Nanoplatelets

et al. 2017

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This study presents new Nano-enhanced Phase Change Materials, NePCMs, formulated as dispersions of functionalized graphene nanoplatelets in a poly(ethylene glycol) with a mass-average molecular mass of 400 g·mol−1 for possible use in Thermal Energy Storage. Morphology, functionalization, purity, molecular mass and thermal stability of the graphene nanomaterial and/or the poly(ethylene glycol) were characterized. Design parameters of NePCMs were defined on the basis of a temporal stability study of nanoplatelet dispersions using dynamic light scattering. Influence of graphene loading on solid-liquid phase change transition temperature, latent heat of fusion, isobaric heat capacity, thermal conductivity, density, isobaric thermal expansivity, thermal diffusivity and dynamic viscosity were also investigated for designed dispersions. Graphene nanoplatelet loading leads to thermal conductivity enhancements up to 23% while the crystallization temperature reduces up to in 4 K. Finally, the heat storage capacities of base fluid and new designed NePCMs were examined by means of the thermophysical properties through Stefan and Rayleigh numbers. Functionalized graphene nanoplatelets leads to a slight increase in the Stefan number.

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Section: Resultssupporting

confidence: 85%

Section: Resultssupporting

confidence: 57%

PEG 400-Based Phase Change Materials Nano-Enhanced with Functionalized Graphene Nanoplatelets

et al. 2017

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“…The details of calculation method are given in the supporting Information. The viscosity of PEG200 being a self‐associated liquid is very high because of a good hydrogen bond ability 45,46 . The hydroxyl and ether bonds in PEG200 and the amine groups in TETA can form intermolecular hydrogen bonds well.…”

Section: Resultsmentioning

confidence: 99%

“…The viscosity of PEG200 being a self-associated liquid is very high because of a good hydrogen bond ability. 45,46 The hydroxyl and ether bonds in PEG200 and the amine groups in TETA can form intermolecular hydrogen bonds well. Results in Table S2 show that the number of hydrogen bonds in PEG200-PEG200 and TETA-PEG200 interactions decreases as the water content increases.…”

Section: Effect Of Water Vapor On Teta Nonaqueous Absorbents Effect O...mentioning

confidence: 99%

CO₂ absorption and microwave regeneration with high‐concentration TETA nonaqueous absorbents

et al. 2022

Greenhouse Gases

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While nonaqueous organic‐amine absorbents have great potential in reducing energy consumption of CO2 capture, their absorption/desorption behaviors are still poorly understood when high‐concentration polyamines are used. On the other hand, large scale CO2 capture demands the use of high‐concentration polyamines absorbents. Therefore, we investigated the absorption and microwave regeneration behavior of high‐concentration triethylenetetramine (TETA) in three typical organic solvents, including polyethylene glycol 200 (PEG200), diethylene glycol (DEG), and ethylene glycol (EG). The results showed that high‐concentration TETA nonaqueous absorbents demonstrate advantages in absorption rate and regeneration energy consumption. The average absorption rate of 2.0 and 5.0 mol/L TETA/EG was 2.84 and 4.70 times that of 0.6 mol/L, respectively. The energy consumption of TETA/EG and TETA/DEG decreased by 29.4 and 25.6% as the concentration increased from 0.6 to 5.0 mol/L. In addition, the high‐concentration TETA/PEG200 absorbent demonstrated observable tolerance for water vapor, which usually exists in flue gas. Results also showed that microwave regeneration was superior to conventional conduction heating especially when high‐concentration TETA/PEG200 absorbent were used. The energy consumption of microwave regeneration of the absorbent with a concentration of 0.6, 2.0, and 5.0 mol/L was reduced by 65.9, 81.2, and 86.0%, respectively when compared with conduction heating. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

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“…The comparison of density and viscosity values of PEG and DMSO with the literature values − at the studied temperature is given in Table . The agreement between the experimental and literature values was found to be satisfactory.…”

Section: Resultsmentioning

confidence: 99%

Excess Properties and Spectroscopic Studies for Binary System of Polyethylene Glycol 200 (1) + Dimethyl Sulfoxide (2) at T = (298.15 to 318.15) K

Zhao

Xiao

et al. 2015

J. Chem. Eng. Data

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This work reports density and viscosity data for binary system of polyethylene glycol 200 (PEG) (1) + dimethyl sulfoxide (DMSO) (2) over the whole concentration range at T = (298. 15, 303.15, 308.15, 313.15, and 318.15) K as a function of composition under atmospheric pressure. From experimental density and viscosity data, the excess molar volume (V m E ), viscosity deviation (Δη), the excess Gibbs free energies of activation for viscous flow (Δ(G*) E ), and the apparent molar volumes (V φ,i ) were calculated. The V m E , Δη, and Δ(G*) E were fitted to a Redlich−Kister equation to obtain the coefficients and to estimate the standard deviations between the experimental and calculated quantities; meanwhile, based on the kinematic viscosity data, the viscous flow thermodynamic parameters were also calculated. In addition, based on FTIR and UV−vis spectra for the binary system of PEG (1) + DMSO (2) with various concentrations, the intermolecular interaction of PEG with DMSO was discussed.

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Volumetric and Viscometric Behavior of Binary Systems 2-Butanol + PEG 200, + PEG 400, + Tetraethylene Glycol Dimethyl Ether, and + N-Methyl-2-pyrrolidone

Cited by 74 publications

References 22 publications

PEG 400-Based Phase Change Materials Nano-Enhanced with Functionalized Graphene Nanoplatelets

PEG 400-Based Phase Change Materials Nano-Enhanced with Functionalized Graphene Nanoplatelets

CO₂ absorption and microwave regeneration with high‐concentration TETA nonaqueous absorbents

Excess Properties and Spectroscopic Studies for Binary System of Polyethylene Glycol 200 (1) + Dimethyl Sulfoxide (2) at T = (298.15 to 318.15) K

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Volumetric and Viscometric Behavior of Binary Systems 2-Butanol + PEG 200, + PEG 400, + Tetraethylene Glycol Dimethyl Ether, and + N-Methyl-2-pyrrolidone

Cited by 74 publications

References 22 publications

PEG 400-Based Phase Change Materials Nano-Enhanced with Functionalized Graphene Nanoplatelets

PEG 400-Based Phase Change Materials Nano-Enhanced with Functionalized Graphene Nanoplatelets

CO2 absorption and microwave regeneration with high‐concentration TETA nonaqueous absorbents

Excess Properties and Spectroscopic Studies for Binary System of Polyethylene Glycol 200 (1) + Dimethyl Sulfoxide (2) at T = (298.15 to 318.15) K

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CO₂ absorption and microwave regeneration with high‐concentration TETA nonaqueous absorbents