JOURNAL OF MOLECULAR LIQUIDS
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2023
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IF 6
Hongyu Liu,Mengxin Xie,Bingli Pan,Bingchan Wang,Longlong Zhang,Yuxuan Zhou,Ning Li,Enxi Yue,Honggang Wang
The synergistic effect of nanoparticles can effectively improve the tribological performances of base oils. In this study, a novel lubricant additive by embedding 2D FeOCl on 2D Zn − MOF was reported for the first time in order to boost the tribological performances of polyethylene glycol (PEG200). The FeOCl/Zn − MOF prepared by a facile microwave assisted strategy was found to be a typical flower-like appearance, where FeOCl nanosheets decorated on the surface of Zn − MOF sheets. Owing to the electron transfer and synergistic effect between FeOCl and Zn − MOF, the novel FeOCl/Zn − MOF effectively reduced the coefficient of friction by 48 % and wear scar diameter by 88 % at the loading of 0.4 wt% FeOCl/Zn − MOF in the base oil. The work suggests the face-to-face combination of FeOCl and Zn − MOF for enhanced tribological performances, representing a new strategy to prepare efficient lubricant additives using assembled 2D nanomaterials.
研究领域:
材料科学
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机械工程
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DOI
高影响因子
ACS Applied Materials & Interfaces
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2021
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IF 9.229
Jiacheng Xing,Danhua Yuan,Hua Xie,Nan Wang,Hanbang Liu,Liping Yang,Yunpeng Xu,Zhongmin Liu
Ultraviolet (UV) radiation is closely related to people’s lives, but excess UV exposure has led to a series of problems. UV protection technology plays a vital role in our life. The most commonly adopted UV protection technology is to use UV-absorbing materials to make protective coatings, including sunscreen cream for human skin and sunscreen coating for materials. Conventional organic UV-protective coatings have low stability and are sensitive to heat, while inorganic UV-protective coating with highly efficient UV-protective performance usually need high processing temperatures and exhibit low transparency. Here, we report a Ti-PEG-Si cross-linked inorganic–organic hybrid material, which exhibits good UV-absorbing performance. By using these UV-absorbing materials, an efficient transparent UV-absorbing coating could be easily prepared at room temperature (298 K). The UV-absorbing coating is mainly composed of titanium and silicon connected by PEG200. PEG200 as a cross-linker can improve the UV-absorption performance of the coating and increase its visible light transmittance. At the same time, the existence of PEG200 can effectively increase the stability and elasticity of the coating and maintain its mechanical properties after UV irradiation. Furthermore, the coating could maintain highly UV-protective performance and could be transparent even after thermal treatment at high temperature (973 K). From this point of view, the hybrid materials have considerable application potential in next-generation UV protective coatings, especially with their utilization in heat-sensitive substrates or under high-temperature conditions.
研究领域:
材料科学
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化学工程
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DOI
PubMed
高影响因子
JOURNAL OF CHEMICAL AND ENGINEERING DATA
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2018
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IF 2.196
Yaotai Jiang,Xiaobang Liu,Dongshun Deng
Carboxylate ionic liquid (IL) and polyethylene glycol 200 (PEG200) mixtures are suitable for the absorption of acidic SO2 because of their unique properties. In the present work, tetraethylammonium furoate ([N2222][FA]) and choline furoate ([Ch][FA]) were blended with PEG200 to form 40 wt % ILs/PEG200 mixtures as SO2 absorbents. The solubilities of SO2 in these two ILs/PEG200 mixtures were measured at T = (303.15, 313.15, 323.15, and 333.15) K and pressure up to 1.2 bar. [N2222][FA]/PEG200 demonstrated the high SO2 absorption capacity of 7.224 mol per kg absorbent at 303.15 K and 1.0 bar. The chemisorption mechanism of SO2 by mixture was studied by Fourier transform infrared and nuclear magnetic resonance spectra, and the influence of cations on the SO2 absorption capacity was analyzed. Furthermore, the reaction equilibrium thermodynamic model was used to correlate the experimental data, and Henry’s law constant (H), reaction equilibrium constant (K0), and thermodynamic properties (ΔrGm0, ΔrHm0, and ΔrSm0) were derived. The absorption enthalpies of the two binary mixtures are −46.39 and −23.07 kJ·mol–1 for the two mixtures, respectively. Considering the low cost, biodegradability of the materials, high capacity, and low absorption enthalpy, the [N2222][FA]/PEG200 mixture was regarded to be an attractive and promising alternative to pure ILs and ordinary solvent as a desulfurizer.
研究领域:
环境科学
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化学工程
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DOI
高影响因子
TEXTILE RESEARCH JOURNAL
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2013
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IF 1.135
Shan Li,Yan Wang,Juan Ding,Huimin Wu,Yaqin Fu
A shear thickening fluid (STF) was prepared from SiO2/PEG200 by ball-milling and its effect on the sound insulation properties of textile materials investigated. The rheological properties of the STF were evaluated using a high-speed rotary rheometer and a field emission scanning electron microscope. Fabrics based on fibers of profiled cross-section were knitted on a computerized flat knitting machine, then dipped in the diluted STF and the microstructure and the sound insulating properties of the STF-treated fabrics were established using a two-channel acoustic analyzer. It was found that an increase in the SiO2 content of the STF decreased the critical shear rate, and the thickening effect of the STF system became effective once the SiO2 content reached 30 wt%. The sound insulation performance of the STF-treated fabrics was superior to that of the untreated fabrics, and their level of sound insulation level was particularly increased with increasing surface density.
研究领域:
材料科学
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纺织工程
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声学
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DOI
高影响因子
WEAR
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2024
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IF 5.3
Xu Tan,Xiuqian Yu,Wenyang Huang,Yifan Zhou,Enzhu Hu,Xingkai Ding,Chuan Li,Kunhong Hu
Two kinds of the novelty lubricant additives (La/CQDs and MoS 2 -La/CQDs dispersions) were synthesized via a simply hydrothermal approach. The dispersions were demonstrated a significant enhancement in the lubrication performance of polyethylene glycol (PEG200). A series of modern analysis technologies were used to elucidate the anti-wear and anti-friction mechanisms of dispersions in PEG200. Results demonstrated that dispersions markedly improved the lubrication performance of PEG200 at 25, 75 and 100 °C. PEG200 containing 0.3 wt% MoS 2 -La/CQDs demonstrated the greatest decrease in the friction coefficient and wear rate, with reductions by 66.3 % and 35.5 % at 100 °C, respectively. Friction and wear mechanisms are ascribed to the engagement of nanoparticle-active components in both dispersions, which facilitate the formation of boundary lubrication films. 1
研究领域:
材料科学
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机械工程
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产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
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2025
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IF 3.9
Lantong Gou,Xiandong Hao,Zhiyong Xu,Wenbo Zhao
Nitric oxide (NO), a major air pollutant from coal-fired power plants, demands an efficient capture for environmental and industrial applications. Ferrous-based absorbents exhibit promising potential for NO capture due to rapid Fe2+-NO complexation. Herein, a novel nonaqueous FeCl2/PEG200 mixture absorbent was designed by employing FeCl2 as the Fe2+ source and PEG200 as the solvent. The FTIR/UV–vis spectrum confirmed Fe2+-NO complex formation and suggested possible reaction mechanisms. Dynamic sorption experiments were systematically conducted to evaluate sorption performance. Kinetic and thermodynamic analyses obtained activation energy, enthalpy change, and entropy change information. Most importantly, a new sorption kinetic model has been established, which can be used to predict the NO sorption capacity at any temperature and partial pressure. Cyclic sorption─desorption testing demonstrated a high desorption efficiency (>91%) and robust cyclic stability over 4 consecutive cycles. This work establishes the FeCl2/PEG200 system as an efficient, reusable, and scalable candidate for industrial NO capture.
研究领域:
环境工程
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化学工程
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工业化学
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大气污染控制
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材料科学
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产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
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2026
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IF 6
Kezhen Lu,Xiqing Xu,Haoqin Yang,Dandan Yan,Shiyuan Li,Yuanshuo Sun,Xin Li,Shuxin Niu
Achieving both high forming accuracy and high mechanical strength is a fundamental challenge in DLP-printed alumina ceramics, as solid loading has opposite effects on these two requirements. Plasticizer offers an effective technical solution to this challenge, but their regulatory effects on interlayer bonding and anisotropic grain growth in DLP-printed ceramics are rarely investigated systematically. In this study, PEG200 was used as the plasticizer to investigate its effects on the slurry properties, microstructure, and mechanical properties of DLP-printed alumina ceramics. Based on the optimal formulation, the influence of debinding atmosphere on the microstructure and properties was further investigated. The results showed that an appropriate 6 wt% PEG200 improved powder dispersion uniformity and significantly suppressed the interlayer stair-step effect. With PEG200 content from 0 to 6 wt%, the side surface roughness decreased from 10.601 μm to 5.590 μm, a reduction of 47.3%. Meanwhile, PEG200 promoted equiaxed grain growth, with the grain aspect ratio decreasing from 1.817 to 1.658 and circularity increasing from 0.820 to 0.848, which further improved the flexural strength by 39.4%, from 320.10 MPa to 446.33 MPa. After debinding in an argon atmosphere, the flexural strength further increased to 609.26 MPa, with a relative density of 99.16%. This study demonstrates that an appropriate amount of PEG200 achieves synergistic optimization from microstructure to macroscopic properties by improving interlayer structure and promoting equiaxed grain growth, providing an effective strategy for fabricating high-performance DLP 3D-printed alumina ceramics.
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DOI
高影响因子
AICHE JOURNAL
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2025
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IF 4
Zhongxiao Sun,Zhiyong Xu,Jinyu Wang,Xiandong Hao,Wenbo Zhao,Jianming Pan
The traditional chemical absorption method using alkanolamine aqueous solution for carbon dioxide (CO 2 ) capture suffers from high volatility and high energy consumption for regeneration. In the present work, a mixed absorbent comprising diethanolamine (DEA) and polyethylene glycol 200 (PEG200) with high thermal stability and low specific heat capacity was designed for CO 2 absorption. Absorption capacity was measured at different temperatures and pressures; the first-order kinetic and bimolecular reaction thermodynamic models were also developed, and relative parameters were obtained. An optimal simulation of the absorption process was carried out. Based on the optimal control (OC) theory and kinetic parameters, the optimal absorption temperature of the absorption process at a certain fixed time was obtained, which decreases with the increase of time. Moreover, the optimal absorption temperature curve can further enhance the absorption capacity. Furthermore, an entropy–enthalpy compensation phenomenon was found for the capture of CO 2 with different absorbents.
研究领域:
化学工程
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环境科学
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产品关联
DOI
高影响因子
KOREA-AUSTRALIA RHEOLOGY JOURNAL
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2024
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IF 2.2
Ouyang Xing,Gong Lei,Huang Xiang,Chen Dazhu
Silica/PEG200 shear thickening fluids (STFs) are widely used smart fluids. There is often residual water during the STF preparation process because of the strong water adsorbability due to the abundant hydroxyl group on the silica surface. Residual water usually influences the shear-thickening behavior of STFs. How much influence the residual water has during the preparation processes on the properties of STFs is still a problem. In this paper, six preparation processes were designed, and the influence of residual water content on the shear thickening behavior due to different preparation processes is analyzed. Firstly, three drying processes were used to prepare STFs, i.e., three kinds of silica powder, which were obtained from spray, freeze, or oven drying of the silica dispersion, were dispersed in PEG200 to obtain STFs. Secondly, three wet processes were used to prepare STFs, i.e., three kinds of silica slurry, which were obtained by centrifuging and washing through water, ethanol, or tetrahydrofuran of the silica dispersion, were directly dispersed into PEG200 and dried to obtain STFs. All the silica dispersion used in these six preparation processes was prepared using the Stöber method. The properties, microstructure, and residual water content of the STFs prepared by the six preparation processes were explored. The results showed that the preparation processes have a big influence on the properties of related STFs. The silica’s residual water content derived from different preparation processes is the critical factor that affects STFs’ shear thickening performance. The drying process using silica powder from spray drying of the silica dispersion resulted in the lowest water content and led to the best shear-thickening performance of the corresponding STFs. Meanwhile, the wet process using a slurry obtained by centrifuging and washing through tetrahydrofuran of the silica dispersion could also prepare STFs with good shear thickening behavior. Graphical abstract
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）