Preparation and characterization of chitosan/ZnO-Ag composite microcapsules and their applications in solar energy harvesting and electromagnetic interference shielding

Yuan, Zhonghua; Shi, Xuan; Chen, Kunlin

doi:10.1016/j.ijbiomac.2024.130285

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…However, drawbacks such as flammability, low thermal conductivity, and poor mechanical properties must be considered. On the other hand, inorganic shell layer materials such as titanium dioxide, silicon dioxide, and zinc oxide offer nonflammability, good mechanical properties, high thermal conductivity, and nontoxicity, making them widely utilized alternatives.…”

Section: Introductionmentioning

confidence: 99%

Leak-Proof Reversible Thermochromic Microcapsule Phase Change Materials with High Latent Thermal Storage for Thermal Management

Zhou,

Duan

2024

ACS Appl. Energy Mater.

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In this study, a range of reversible thermochromic microencapsulated phase change materials (RTPCMs) encapsulated in silica (SiO 2 ) microcapsules modified with a silane coupling agent was successfully created and produced. The structure and composition of these thermochromic microcapsules were analyzed using Fourier transform infrared (FTIR) spectroscopy and scanning electron microscopy (SEM), while their heat storage capacity was evaluated using differential scanning calorimetry (DSC). SEM images revealed that these microcapsules exhibited a spherical shape with a well-defined core−shell structure. Both DSC and thermogravimetric (TG) analyses demonstrated that microcapsules modified with MPTMS exhibited a favorable enthalpy of phase transition (98.57 J/g). Furthermore, the contact angle of the microcapsules was substantially enhanced, reducing the leakage rate from 6.2% to 1.2%, and the thermal conductivity of the RTPCMs increased by 300% after incorporating the SiO 2 shell layer. Notably, MPTMS-modified microcapsules not only exhibited high latent heat storage and release capacity but also maintained excellent shape stability, thermal stability, phase transition reliability, and durability. Additionally, these microcapsules displayed thermochromic properties during phase transition and were successfully integrated into textile applications. Hence, the dualfunctional microencapsulated phase change materials (PCMs) explored in this study hold significant promise for various thermal management applications, including energy-efficient buildings, smart material coatings, and thermal sensors.

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Section: Introductionmentioning

confidence: 99%

Leak-Proof Reversible Thermochromic Microcapsule Phase Change Materials with High Latent Thermal Storage for Thermal Management

Zhou,

Duan

2024

ACS Appl. Energy Mater.

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The Thermal Energy Storage Characteristics of Oleic Acid Modified ZnO‐Decorated Polymer Matrix‐Supported Composite Phase Change Materials: Synthesis and Characterization

MERT,

MERT

2024

Macro Materials & Eng

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In this study, modified nano zinc oxide (ZnO)‐reinforced polymer‐supported novel thermally enhanced form‐stable composite phase change materials (PCMs) are presented, which are prepared via water in oil emulsion polymerization and following impregnation process steps. First, ZnO nanoparticles are modified with oleic acid (OA) to obtain lipophilic structures for emulsion stability, which are designed to take a role as a heat transfer activator. To ensure the shape stabilization of n‐hexadecane used as organic PCM, polymeric support materials are synthesized in the presence of modified ZnO nanoparticles (ZnO@OA). The polymeric frameworks exhibit open porous morphology, and the thermal stability of the support matrix improves with the addition of ZnO nanofiller. In the second step, composite PCMs are prepared by incorporation of n‐hexadecane with the solvent‐assisted vacuum impregnation method into polymer composites. The 1.0% ZnO@OA incorporated composite PCM has the highest incorporation ratio and exhibits a thermal storage capability (η) of 100%. According to the T‐history and thermal conductivity tests, it is observed that the heat conduction rate is enhanced with the addition of ZnO@OA nanofiller. The conclusion is that the obtained ZnO@OA integrated composite PCMs have a remarkable potential for latent heat storage applications requiring low temperature in the range of 5–25 °C.

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Multi-interfacial bridging engineering of flexible MXene film for efficient electromagnetic shielding and energy conversion

Zhang,

Feng,

et al. 2024

Journal of Colloid and Interface Science

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Preparation and characterization of chitosan/ZnO-Ag composite microcapsules and their applications in solar energy harvesting and electromagnetic interference shielding

Cited by 3 publications

References 28 publications

Leak-Proof Reversible Thermochromic Microcapsule Phase Change Materials with High Latent Thermal Storage for Thermal Management

Leak-Proof Reversible Thermochromic Microcapsule Phase Change Materials with High Latent Thermal Storage for Thermal Management

The Thermal Energy Storage Characteristics of Oleic Acid Modified ZnO‐Decorated Polymer Matrix‐Supported Composite Phase Change Materials: Synthesis and Characterization

Multi-interfacial bridging engineering of flexible MXene film for efficient electromagnetic shielding and energy conversion

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