COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2025
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IF 5.4
Chengmin Hou,Qi Gui,Jiaqi Song,Ze Fan
The application potential of superhydrophobic coatings is inherently constrained by their stability, durability, and apparent color characteristics. To address these limitations, a thin superhydrophobic coating was prepared on the surface of cotton fabric, featuring a micron mastoid structure with distinct fiber boundaries. This coating is achieved through the grafting of polymer poly (trifluoroethyl methacrylate-random-glycyl methacrylate) and 3-(trimethoxysilyl) propyl methacrylate modified SiO 2 nanoparticles onto the fabric surface. The chemical composition, thermal stability and micro/nano structure of the coating were evaluated by infrared spectroscopy, X-ray diffraction, thermogravimetric analysis and scanning electron microscopy. The superhydrophobic coating not only exhibits exceptional oil-water separation capabilities, achieving a remarkable separation efficiency of 98%, but also ensures high reusability, enduring up to 10 consecutive oil-water separation cycles without significant performance degradation. Furthermore, the coating manifests mechanical stability and durability, maintaining its superhydrophobic nature even after undergoing rigorous mechanical abrasion, immersion in acidic and alkaline solutions, as well as exposure to elevated temperatures. In addition, an in-depth analysis was conducted to evaluate the influence of this superhydrophobic modification on the inherent characteristics of cotton fabric, specifically its color, whiteness, and gloss. The findings reveal that the hue of the cotton fabric remains unaltered, while a marginal enhancement in whiteness and a slight reduction in gloss are observed post-modification, indicating small impact on the inherent characteristics of cotton fabric.
研究领域:
材料科学
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纺织工程
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表面化学
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产品关联
DOI
高影响因子
Science China-Materials
·
2022
·Vol. 66
·期 2
·522-530
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IF 8.64
Wu Mengjun,Song Jiangping,Zhu Xinxin,Zhan Hui,Tian Tian,Wang Rui,Lei Jiaheng,Tang Haolin
Composite polymer electrolytes (CPEs) are regarded as promising candidates for high-energy-density all-solid-state lithium metal batteries (ASSLMBs) because they combine the merits of solid polymer electrolytes and inorganic solid electrolytes. However, poor electrode/electrolyte interface compatibility and filler agglomeration limit their practical application. In this study, an in-situ polymerization method was used to create a three-dimensional (3D) hierarchical CPE using 3-(trimethoxysilyl)propyl methacrylate (KH570)-modified Li 6.4 La 3 Zr 2 Al 0.2 O 12 (KH@LLZO) particles. The KH@LLZO-rich (up to 80 wt%) region of the electrolyte provides a rigid barrier to prevent lithium dendrite growth, while the other region of the electrolyte with an appropriate KH@LLZO content (8 wt%) achieving optimal ionic conductivity infiltrates into the entire battery system to allow for smooth Li + transport. The symmetric Li|Li cell exhibits steady lithium plating/stripping cycling over 600 h at 0.3 mA h cm −2 and has a decent critical current density of 0.9 mA cm −2 . This is made possible by the elaborate structure of the electrolytes. Full Li|LiFePO 4 cells have preferable cycling stability (capacity retention of 91.6% after 200 cycles at 0.5 C). Moreover, pouch cells that use the in-situ -formed electrolyte exhibit excellent flexibility and safety. This novel design of 3D hierarchical CPEs using surface-modified LLZO particles paves the way for the development of dendrite-free and high-performance ASSLMBs.
研究领域:
材料科学
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能源存储技术
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DOI
高影响因子
POLYMER ENGINEERING AND SCIENCE
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2025
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IF 3.2
Xiaolin Zhang,Xing Chang,Jingjing Di,Long Xu,Bin Cai,Maocai Huang
To maximize the utilization of waste laser printed paper fiber (WLPF), WLPF was used as the organic reinforcing phase, high-density polyethylene (HDPE) was used as the matrix, vinyltrimethoxysilane (A171) and γ-methacryloxytrimethoxysilane (KH570) were used as coupling agents to modify and prepare WLPF/HDPE composites via a blending-injection molding process. The weather resistance properties and mechanisms of the composites were systematically analyzed using scanning electron microscopy, Fourier-transform infrared spectroscopy (FTIR), mechanical analysis, thermogravimetric analysis, and differential scanning calorimetry. The results showed that the KH570-modified WLPF/HDPE composites retained their excellent tensile and flexural strength after 2000 h of accelerated ultraviolet (UV) aging, and their tensile strength, flexural strength, and flexural modulus were 26.9, 41.0, and 2744.4 MPa, respectively. The thermal property analysis revealed that the thermal stability of the composites decreased after aging. Additionally, the crystallization enthalpy, melting enthalpy, and crystallinity of the composites increased. Highlights Waste laser printed paper fiber/high-density polyethylene (WLPF/HDPE) modified composites were prepared by injection molding process. Ultraviolet (UV) aging properties of WLPF/HDPE composites were investigated for the first time. KH570 modified composites retained excellent tensile and flexural strength after UV aging. The thermal properties of the composites after UV aging were also investigated.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2021
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IF 8.128
Fei Lv,Kexin Liu,Zhuyi Wang,Jiefang Zhu,Yin Zhao,Shuai Yuan
The room and low-temperature performances of solid-state lithium batteries are crucial to expand their practical application. Polyethylene oxide (PEO) has received great attention as the most representative polymer electrolyte matrix. However, most PEO-based solid-state batteries need to operate at high temperature due to low room temperature ionic conductivity . Improving the ionic conductivity by adding plasticizers or reducing the crystallinity of PEO often compromises its mechanical strength . Here, an amorphous PEO-based composite solid-state electrolyte is obtained by ultraviolet (UV) polymerizing PEO and methacryloyloxypropyltrimethoxy silane (KH570)-modified SiO 2 which demonstrates both satisfactory mechanical performance and high ionic conductivity at room (3.37 × 10 −4 S cm −1 ) and low temperatures (1.73 × 10 −4 S cm −1 at 0 °C). In this electrolyte, the crystallinity of PEO is reduced through cross-linking, and therefore provides a fast Li + ions transfer area. Moreover, the KH570-modified SiO 2 inorganic particles promote the dissociation of lithium salts by Lewis acid centers to increase the ionic conductivity. Importantly, this kind of cross-linking networks endows the final electrolyte much higher mechanical strength than the pure PEO polymer electrolyte or PEO-inorganic filler blended systems. The solid-state LiFePO 4 /Li cell assembled with this electrolyte exhibits excellent cycling performance and high capacity at room and low temperatures.
研究领域:
材料科学
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电化学
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电池技术
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聚合物化学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）