ACS Applied Nano Materials
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2025
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IF 5.5
Meng Tao,Wei Guo,Jixiang Zhang,Cui Liu,Nian Li,Min Xi,Shudong Zhang,Zhenyang Wang
Composite fabrics with integrated photothermal conversion, heat collection, and antibacterial properties are urgently needed to enhance personal thermal management in northern cold regions. Herein, a designed sandwich-like structure, in which PEG@SiO2 microcapsules were intercalated into the MXene interlayers (PEG@SiO2/MXene), was proposed to achieve the fast solar-thermal conversion and the surplus solar-generated heat storage and release and even further corresponding fabrics with antibacterial properties for the personal thermal management. Remarkably, the prepared PEG@SiO2/MXene (PSM) exhibited fast solar-to-heat conversion, followed-on heat storage ability, with an average temperature rising rate of 8.1 °C/min under one-sunlight irradiation and a phase change enthalpy of 155.7 J/g. Furthermore, under one-sunlight irradiation, the designed antibacterial composite fabrics with PSM coatings could greatly increase the local working temperature from 1 °C to 27.3 °C compared with the reference traditional cotton fabrics (from only 1 °C to 6.5 °C). This work provides a potential multifunctional composite material/fabric for the development of personal thermal management in outdoor sunlight applications.
研究领域:
材料科学
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纺织工程
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能源技术
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
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IF 5.1
Xinzi Zhong,Liyun Cao,Tian Ji,Jianfeng Huang,Yijun Liu,Xuetao Shen,Yong Zhao,Zhiwen Cheng,Ting Liu
Hierarchical design was applied to core-shell B 2 O 3 @SiO 2 microcapsule, followed by fabrication of the SiC–B 2 O 3 @SiO 2 coating by a combination of entrapping and hot dip processes. Among the C/C-SiC-BS2, C/C-SiC-BS4 and C/C-SiC-BS6 samples, the C/C-SiC-BS4 composite exhibits long-term antioxidant capabilities, with only a 2.30 % mass loss as oxidized at 973 K for 1500 h, and 2.35 % at 1073 K for 2600 h. Furthermore, after enduring 150 thermal shocks between 293 K and 1173 K, its mass loss is only 2.07 %. The XRD patterns detected the existence of B 2 O 3 and SiO 2 phases, and the SEM and EDS analysis proved the borosilicate glass , indicating the excellent performances came from the synergistic self-healing effects of the B 2 O 3 , SiO 2 phases, and borosilicate glass . Thus, within the temperature ranges from 873 K to 1273 K, the oxygen penetration shifts from osmotic state to defect diffusion in coating. This research emphasizes the significance of hierarchical designs for core-shell sacrificial phase in silicate coatings, thereby enhancing their long-term applicability.
研究领域:
材料科学
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表面工程
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
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2025
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IF 7.3
Hongxin Luo,Xin Li,Nanqi Shi,Feng Guo,Han Yin,Zhike Li,Haiyan Li
In this work, self-reporting corrosion inhibition coatings with long-term corrosion protection was prepared by different process means. The two-dimensional (2D) materials ZrP-NH 2 and Tannin@SiO 2 (TA@SiO 2 ) microcapsules were introduced into the epoxy resin (EP) coatings, and the Layered EP coatings (TA@SiO 2 layer coatings and ZrP-NH 2 layer coatings) and the Mixed EP coatings were prepared by layered spraying and mix spraying, respectively. In the pre-corrosion stage, the excellent barrier performance of the ZrP-NH 2 layer coating hinders the diffusion of corrosive media. In the later stages of corrosion, the TA@SiO 2 microcapsules in the TA@SiO 2 layer coating releases TA, which forms a TA-Fe 3+ passivation film with the metal substrate and confers the coating with a blue-violet self-reporting function. Furthermore, the synergistic corrosion inhibition mechanism of TA@SiO 2 layer coatings was investigated by DFT theoretical calculations and experiment. Meanwhile, the Layered EP coatings provide the triple functions of excellent physical barrier action, corrosion inhibition and self-reporting under high temperature and high salt conditions.
研究领域:
材料科学
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腐蚀与防护
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表面工程
✓ 已验证
产品关联
DOI
高影响因子
CONSTRUCTION AND BUILDING MATERIALS
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2025
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IF 8
Chang Chen,Bao Xu,Huan Wang,Shaowu Jiu,Yanxin Chen,Yan Liu
Phase change materials offer potential for improving building energy efficiency through heat absorption/release during phase transition. This study develops novel inorganic hydrated salt@SiO 2 phase change microcapsules using modified eutectic hydrated salt as the core and a dual-component silica/nanosilica shell via the Pickering emulsion method. These microcapsules were incorporated into gypsum for forming functional composites. Comprehensive investigations were conducted to evaluate the thermal properties of the modified eutectic hydrated salts and the microcapsules, alongside the mechanical properties and thermal management capabilities of the composites. Optimized microcapsule properties: The optimized microcapsules exhibited a rough surface, an average size of 6.3 μm, a phase-change temperature of 21.31°C, and an enthalpy of 286.8 J/g. Remarkably, the enthalpy loss was limited to 0.4 % after 120 heating-cooling cycles. Composite performance: In the gypsum composites, 7-day compressive and flexural strengths peaked at 10.8 MPa and 5.3 MPa (2.0 wt% microcapsules), declining to 6.6 MPa and 3.5 MPa at 4.0 wt%. Infrared thermography confirmed effective thermal buffering: incorporating 4.0 wt% microcapsules reduced surface temperature by 4°C versus the control specimen after 480 s heating. Concurrently, thermal conductivity decreased by 32.8 % (measured at 4.0 wt% content), further enhancing potential for building thermal regulation. By delaying heat transfer through diurnal phase-change cycles, they directly reduce cooling loads in hot climates, enabling significant annual energy savings in air-conditioned buildings and advancing sustainable construction.
研究领域:
材料科学
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化学工程
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建筑材料
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热能工程
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纳米技术
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）