Evaluation of Self-Healing Efficiency of Microcapsule-Based Self-Healing Cementitious Composites Based on Acoustic Emission

Hao, Wenfeng; Hao, Hao; Kanwal, Humaira; Jiang, Shengjie

doi:10.32604/jrm.2022.023795

Cited by 3 publications

(2 citation statements)

References 30 publications

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“…It can effectively protect its internal substances from external interference. The microcapsules using melamine resin as the wall material were successfully synthesized and applied in coatings, demonstrating the feasibility of using microcapsules in coatings [13][14][15][16][17][18]. At the same time, the results also demonstrated that melamine resin as the wall material is prone to breakage when damaged.…”

Section: Introductionmentioning

confidence: 82%

Preparation of UV Topcoat Microcapsules and Their Effect on the Properties of UV Topcoat Paint Film

Xia,

Yan

2024

Polymers

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An orthogonal experiment was designed to prepare different UV topcoat microcapsules by adjusting the mass ratio of wall material to core material, HLB value of emulsifier, reaction temperature, and reaction time of UV topcoat microcapsule. By testing the morphology and multiple properties of UV topcoat microcapsules, it was found that the biggest factor affecting the synthesis of UV topcoat microcapsules is the emulsifier HLB value. In order to further optimize the performance of UV topcoat microcapsules, a single-factor experiment was conducted with the emulsifier HLB value as the variable, and it was found that the UV topcoat microcapsules achieved the best performance when the emulsifier HLB value was 10.04. The optimal UV topcoat microcapsules were added to the UV topcoat at different amounts to prepare UV topcoat paint films. Through testing the various properties of the UV topcoat paint film, it was determined that the performance of the UV topcoat paint film was optimal when the amount of UV topcoat microcapsules added to the UV topcoat was 4.0%. The optical properties of the UV topcoat paint film were tested, and the effect of UV topcoat microcapsules on the color difference and glossiness of the UV topcoat paint film was not significant. The tensile and self-healing performance of UV topcoat microcapsules were tested. UV topcoat microcapsules can enhance the toughness of the UV topcoat paint film to a certain extent, suppress the generation of microcracks, and have a good self-healing effect. The results provide experimental support for the preparation of microcapsules using UV coatings as core materials for the self-healing of UV coatings.

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Section: Introductionmentioning

confidence: 82%

Preparation of UV Topcoat Microcapsules and Their Effect on the Properties of UV Topcoat Paint Film

Xia,

Yan

2024

Polymers

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“…However, the waterborne coatings will be damaged by external factors during use, resulting in microcracks [1][2][3][4][5][6]. Self-healing microcapsules can have a certain inhibitory effect on microcracks in waterborne coatings [7][8][9][10][11]. A melamine resin is nontoxic and odorless, with a simple preparation process and compact material, making it a good choice for microcapsule wall materials.…”

Section: Introductionmentioning

confidence: 99%

Effect of Shellac Microcapsules Blended with Carbonyl Iron Powder and Carbon Nanotubes on the Self-Healing and Electromagnetic Wave Absorption Properties of Waterborne Coatings on Fiberboard Surface

Xia,

Li,

Yan

2023

Coatings

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An orthogonal experiment was conducted to prepare nine different coatings by changing four influencing factors of shellac microcapsule content, carbonyl iron powder (CIP) content, the content of carbon nanotubes (CNTs), and primer coating thickness. By testing the morphology and performance of the shellac microcapsules, CIP, CNT blended coatings (SCCBC), and using the elongation at tensile failure of the SCCBC as the orthogonal experimental analysis, it was determined that the biggest factor affecting the elongation at tensile failure of SCCBC was the shellac microcapsule content. With the aim of further optimizing the properties of the SCCBC, a single-factor experiment was performed using shellac microcapsule content as the sole variable, and it was determined that the SCCBC exhibited optimal performance when shellac microcapsule content reaches 4.2%. The optical properties of SCCBC were tested, showing that there were minor fluctuations in the glossiness and color difference of the SCCBC. The mechanical properties of SCCBC were tested. The presence of shellac microcapsules can contribute to an improvement of the SCCBC toughness, restraining the formation of microcracks, and have a certain self-healing effect. The electromagnetic wave absorption properties of the mixed powder of shellac microcapsules, CIP and CNTs were tested. The CIP and CNTs can enhance the electromagnetic wave absorption properties of the waterborne coating, but the electromagnetic wave absorption properties were weaker in low-frequency bands. The SCCBC on the surface of fiberboard not only have a self-healing effect, but also have a certain electromagnetic wave absorption function through the mixing of shellac microcapsules, CIP, and CNTs, expanding the application range of waterborne coatings for wood.

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A Review of Self-Healing Polymers for Lithium Batteries: from Mechanistic Insight to Application

Sun,

Wang,

Cao

et al. 2024

SEE

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Review A Review of Self-Healing Polymers for Lithium Batteries: From Mechanistic Insight to Application Qiyue Sun, Yongyin Wang, Qiaoying Cao *, Hang Hu, Mingtao Zheng, Yong Xiao, Yingliang Liu and Yeru Liang * Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China * Correspondence: caoqy@scau.edu.cn (Q.C.); liangyr@scau.edu.cn (Y.L.) Received: 11 May 2024; Revised: 19 June 2024; Accepted: 22 July 2024; Published: 14 August 2024 Abstract: Lithium batteries are crucial for powering portable electronic devices and electric vehicles, profoundly impacting our global society. However, their repeated charge and discharge cycles cause structural changes that lead to mechanical fractures in the internal components, significantly reducing cycling lifetimes of lithium batteries. Utilizing intrinsic self-healing polymers is a promising strategy to address these issues, as these materials can spontaneously repair mechanical cracks or damages, resulting in greatly enhanced electrochemical performance. In this review, we present and highlight how self-healing polymers contribute to improved electrochemical performance in lithium batteries. We first introduce the self-healing mechanisms identified in current self-healing functions, including external and intrinsic self-healing. Then, we discuss their effects on different electrolyte and binder materials. Key examples illustrating the efficacy of self-healing polymers in extending cycle life and improving battery stability are discussed. Finally, we propose some challenges and future opportunities in this evolving field to stimulate the rational design of advanced self-healing polymers for stable lithium batteries.

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Evaluation of Self-Healing Efficiency of Microcapsule-Based Self-Healing Cementitious Composites Based on Acoustic Emission

Cited by 3 publications

References 30 publications

Preparation of UV Topcoat Microcapsules and Their Effect on the Properties of UV Topcoat Paint Film

Preparation of UV Topcoat Microcapsules and Their Effect on the Properties of UV Topcoat Paint Film

Effect of Shellac Microcapsules Blended with Carbonyl Iron Powder and Carbon Nanotubes on the Self-Healing and Electromagnetic Wave Absorption Properties of Waterborne Coatings on Fiberboard Surface

A Review of Self-Healing Polymers for Lithium Batteries: from Mechanistic Insight to Application

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