Journal of Applied Polymer Science最新文献_第5页

Enhancement of Composite Material Properties Based on Aggregate Network Modulation

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-30 DOI: 10.1002/app.56637

Yifan Jiang, Fengli Zhou, Zhanfu Yong, Jianhui Song

{"title":"Enhancement of Composite Material Properties Based on Aggregate Network Modulation","authors":"Yifan Jiang, Fengli Zhou, Zhanfu Yong, Jianhui Song","doi":"10.1002/app.56637","DOIUrl":"https://doi.org/10.1002/app.56637","url":null,"abstract":"<div>\u0000 \u0000 <p>Compounding technology and the theory of filled polymers have progressed substantially. Valuable insight from these developments is that carbon black-filled wet rubber greatly enhances the filler's dispersion and dispersion state in the matrix. The enhanced dispersion noticeably improves the properties of the polymer. This paper systematically investigated the effects of silanization reactions on filler dispersion, interaction force, and aggregation networks. Their potential impact on polymers' properties was also evaluated. To this end, we evaluated the effects of different ratios of Si69 and silica fillers in wet and dry rubbers. For better characterization and utilization of the filler network structure, the filler–filler, filler–rubber, and rubber–rubber interactions were analyzed using the Mooney–Rivlin curve model. The results revealed that wet blending and silanization reactions primarily regulated the aggregate size and filler network strength. Increasing silica content improved the Payne effect. Notably, incorporating an appropriate filler content could effectively enhance rubber's physical and mechanical properties. This paper effectively optimized the structure and properties of filled polymers by controlling silanization reaction and applying wet mixing. This research contributes to the theoretical and experimental foundation of studies in relevant fields.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 12","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrospun Membrane of Poly(Vinyl Alcohol)/Polyvinylpyrrolidone Functionalized With Copper Nanoparticles: Evaluation of Antimicrobial Properties and Particulate Matter Filtering

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-30 DOI: 10.1002/app.56612

Diego A. Marin-Silva, John Perez-Calderon, Adriana Pinotti

{"title":"Electrospun Membrane of Poly(Vinyl Alcohol)/Polyvinylpyrrolidone Functionalized With Copper Nanoparticles: Evaluation of Antimicrobial Properties and Particulate Matter Filtering","authors":"Diego A. Marin-Silva, John Perez-Calderon, Adriana Pinotti","doi":"10.1002/app.56612","DOIUrl":"https://doi.org/10.1002/app.56612","url":null,"abstract":"<div>\u0000 \u0000 <p>Electrospun materials are widely used in filtering applications due to their excellent dynamic properties. However, their solubility and mechanical strength limit their use in humid environments. A nanostructured device based on poly(vinyl alcohol) (PVA) and polyvinylpyrrolidone (PVP), reinforced with copper nanoparticles (CuNps), was designed to impart antimicrobial properties, modify fiber diameters, and improve solution conductivity for environmental applications such as filtering devices. Morphological, tensile, thermal, and antimicrobial analyses and filtering of particulate matter were conducted to evaluate the impact of CuNps on the electrospun mat. Mechanical tests demonstrated that the addition of CuNp enhanced the ultimate tensile strength from 13 to 53 MPa. The electrical conductivity of the solution, improved by CuNps, enabled the production of fibers with adequate diameters, and as a result, the fibers became thinner and more uniform. X-ray diffraction (XRD) and ATR-FTIR analyses indicated the presence of CuNp and their interaction with the polymer mat. Antimicrobial tests revealed excellent properties against Gram-positive and Gram-negative bacteria and \u0000 <i>Candida albicans</i>\u0000 . Heat treatment of the fibrous structures improved their solubility, making them suitable for use in high-humidity environments. The application of the PVA–PVPCu mats as filters, using electrostatic precipitator TDA equipment, enabled the retention of a particulate matter of 2.5 and 10 μm, confirming that these electrospun biocompatible mats can be efficient and cost-effective air filtration devices.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 12","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanophase Structure and Performances of Proton-Exchange Membranes Based on Perfluorinated Sulfonic Acid Ionomer and Carboxylated Poly(Vinyl Alcohol)

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-30 DOI: 10.1002/app.56666

Wenshuo Wang, Shanshan Gao, Dayang Yu, Pengju Pan, Yongzhong Bao

{"title":"Nanophase Structure and Performances of Proton-Exchange Membranes Based on Perfluorinated Sulfonic Acid Ionomer and Carboxylated Poly(Vinyl Alcohol)","authors":"Wenshuo Wang, Shanshan Gao, Dayang Yu, Pengju Pan, Yongzhong Bao","doi":"10.1002/app.56666","DOIUrl":"https://doi.org/10.1002/app.56666","url":null,"abstract":"<div>\u0000 \u0000 <p>Proton-exchange membranes (PEMs) with high proton conductivity and low methanol uptake would find potential application in direct methanol fuel cells. Herein, PEMs based on perfluorinated sulfonic acid ionomer (PFSA) and carboxylated poly(vinyl alcohol) (CPVA) were prepared by in situ acetalization of poly(vinyl alcohol) with 4-carboxybenzaldehyde and casting of PFSA/CPVA dispersions. Effects of acetalization degree of CPVA on the hydrogen-bond action, phase structure, and properties of PEMs have been investigated. The water domains for proton conduction are formed mainly through the aggregation of sulfonic acid groups of PFSA, uncrosslinked remained hydroxyl, and additional carboxyl groups of CPVA, while the hydrophobic domains are formed through the aggregation of fluorocarbon chains of PFSA, PVA-PVA hydrogen bonds, and actually acetalized CPVA units. PEM containing CPVA with an acetalization degree of 30% exhibits good comprehensive performances, that is, much lower methanol uptake, similar proton conductivity (150.4 mS cm<sup>−1</sup> at 80°C and 100% relative humidity), and single-cell performance (43.0 mW cm<sup>−2</sup> at 80°C) to PFSA membrane. In addition to the competitive performances, the modified PEM exhibits reduced cost due to the incorporation of cheap PVA-based polymer.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 13","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preparation and Alkali Resistance Research of Cyclotriphosphazene Based Hexa-Imidazole Compound Functionalized Addition-Type Polynorbornene Anion Exchange Membranes 环三唑基六咪唑化合物功能化加成型聚降冰片烯阴离子交换膜的制备与耐碱性研究

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-30 DOI: 10.1002/app.56662

Wenjun Zhang, Xiaohui He, Defu Chen, Ling Feng, Quan Li, Jia Ye, Zhihui Fu, Nengquan Yu, Longming Huang

{"title":"Preparation and Alkali Resistance Research of Cyclotriphosphazene Based Hexa-Imidazole Compound Functionalized Addition-Type Polynorbornene Anion Exchange Membranes","authors":"Wenjun Zhang, Xiaohui He, Defu Chen, Ling Feng, Quan Li, Jia Ye, Zhihui Fu, Nengquan Yu, Longming Huang","doi":"10.1002/app.56662","DOIUrl":"https://doi.org/10.1002/app.56662","url":null,"abstract":"<div>\u0000 \u0000 <p>Anion exchange membranes (AEMs) are extensively utilized across various domains due to their remarkable performance. Nonetheless, AEMs continue to encounter significant challenges related to thermal stability, alkaline stability, and ion conductivity. Advanced molecular design and the precise incorporation of functional groups are pivotal for enhancing their properties. In this work, norbornene monomer was produced from 5-norbornene-2-methanol. One monomer featured an extensive alkyl side chain, while the other included a long bromine side chain. These monomers were subsequently used to synthesize a functional diblock polynorbornene copolymer. Finally, cyclotriphosphazene based hexa-imidazole compounds were designed using cyclotriphosphazene groups and crosslinked with long, flexible side chains by the Menschutkin reaction. The flexible side chain structure and block structure effectively promoted phase separation, while the high concentration of imidazole ion groups facilitated aggregation into distinct ion domains. As a result, a series of anion exchange membranes (aPNB-CTPP-2MI-x) fabricated using this approach demonstrated excellent ionic conductivity, alkaline, and heat resistance. Notably, the aPNB-CTPP-2MI-1.75 membrane achieved an ionic conductivity exceeding 100 mS cm<sup>−1</sup> at 80°C, with a swelling degree of only 11.96%. Even after 576 h of immersion in 1 M NaOH solution (80°C), the ionic conductivity remained above 86.83%.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 13","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dopamine-Assisted Polyethyleneimine Deposition Modification of Hypercrosslinked Polystyrene for Enhanced Adsorption of the Dye Congo Red

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-28 DOI: 10.1002/app.56652

Suning Huang, Zicheng Xie, Haixin Zhu, Shanshan Jiang, Sheng Lu, Yuewen Huang, Bin Wang

{"title":"Dopamine-Assisted Polyethyleneimine Deposition Modification of Hypercrosslinked Polystyrene for Enhanced Adsorption of the Dye Congo Red","authors":"Suning Huang, Zicheng Xie, Haixin Zhu, Shanshan Jiang, Sheng Lu, Yuewen Huang, Bin Wang","doi":"10.1002/app.56652","DOIUrl":"https://doi.org/10.1002/app.56652","url":null,"abstract":"<div>\u0000 \u0000 <p>Congo red dye wastewater is highly toxic and nondegradable, posing a significant threat to the environment. Hypercrosslinked porous materials (HCP) are effective candidates for the removal of dyes from wastewater. In this study, hypercrosslinked polystyrene (HCPS) with high specific area (1073.08 m<sup>2</sup>/g) was synthesized by using waste expanded polystyrene (EPS) as starting material. HCPS was then modified through a simple dopamine-assisted deposition of polyethyleneimine, resulting in the modified material HCPS@PDA/PEI, which retained a significant specific surface area of 738.36 m<sup>2</sup>/g and a porous structure with abundant functional groups. HCPS@PDA/PEI exhibits remarkable efficacy as a high-performance adsorbent for the removal of Congo red (CR) from aqueous solutions. The adsorption process of CR conforms to the pseudo-second-order kinetic model. Further fitting with the Langmuir isotherm model elucidates that the adsorption of CR occurs as a monolayer chemical adsorption, with a maximum adsorption capacity of 1030.31 mg/g, which is triple that of the unmodified HCPS (291.54 mg/g). The adsorption activation energy and thermodynamic parameters substantiate that the adsorption process is chemical in nature, spontaneous, and endothermic. Consequently, HCPS@PDA/PEI holds considerable promise for applications in the treatment of dye-contaminated wastewater.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 13","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flexible PVDF Piezoelectric Nanogenerator Embedded With B0.85Ca0.15Zr0.1Ti0.9O3 for Wearable Electronics

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-28 DOI: 10.1002/app.56673

Neha Thakur, Prakash Gopalan, Jayant Kolte

{"title":"Flexible PVDF Piezoelectric Nanogenerator Embedded With B0.85Ca0.15Zr0.1Ti0.9O3 for Wearable Electronics","authors":"Neha Thakur, Prakash Gopalan, Jayant Kolte","doi":"10.1002/app.56673","DOIUrl":"https://doi.org/10.1002/app.56673","url":null,"abstract":"<div>\u0000 \u0000 <p>Piezoelectric nanogenerators have attracted considerable attention due to their potential to provide sustainable and renewable energy for low-power electronic devices, such as sensors, wearables, and wireless sensor networks. We report a lead-free Ba<sub>0.85</sub>Ca<sub>0.15</sub>Zr<sub>0.10</sub>Ti<sub>0.90</sub>O<sub>3</sub> (BCZT) nanoparticles-embedded PVDF-based flexible piezoelectric nanogenerator (PENG). The morphology, structure, and piezoelectric performances of pristine polyvinylidene fluoride (PVDF) and BCZT–PVDF nanocomposite have been investigated. Raman spectroscopy is used to study the β-phase fraction, which is maximum (~79%) for PVDF with 30 wt% BCZT nanoparticles. The change in morphology of PVDF is co-related with the ion–dipole interactions between the dipoles of the PVDF matrix and the negative surface charge of BCZT nanoparticles (~18 mV), calculated from ζ-potential analysis. The dielectric constant of the samples also increases from 10 to 48 with an increase in the BCZT filler content. The flexible nanogenerators devised from the composite exhibits excellent performance with a high recordable piezoelectric output open circuit voltage (<i>V</i>\u0000 <sub>OC</sub>) of ~6.98 V, and output power of 86.5 μW under a very low constant vertical compressive force of 0.7 N at 1 MΩ.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 13","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabric Reinforced Polybenzoxazine Aerogel Composite With Lightweight, High Compressive Strength, and High-Temperature Resistance to 1100°C

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-28 DOI: 10.1002/app.56643

Chun Liu, Hui Ji, Jing Wang, Mingkang Wang, Yunyun Xiao, Sizhao Zhang, Feng Ding

{"title":"Fabric Reinforced Polybenzoxazine Aerogel Composite With Lightweight, High Compressive Strength, and High-Temperature Resistance to 1100°C","authors":"Chun Liu, Hui Ji, Jing Wang, Mingkang Wang, Yunyun Xiao, Sizhao Zhang, Feng Ding","doi":"10.1002/app.56643","DOIUrl":"https://doi.org/10.1002/app.56643","url":null,"abstract":"<div>\u0000 \u0000 <p>High-temperature resistance polymer composites are crucial for application in aerospace field. Polybenzoxazine (PBz) aerogel is a novel insulation material with excellent mechanical properties, low bulk density, and low thermal conductivity, which has potential application in thermal protection systems. However, the improvement of high residual char rates for shape-keeping purposes at high-temperature is still a critical challenge. Herein, a novel kind of PBz aerogel composite reinforced with mullite-fiber fabric (PBZ-MF) is prepared by sol-immersion-gel strategy. The prepared composite integrates the nanoporous structure of aerogel with the fascinating properties of mullite-fiber fabric, resulting in relatively low thermal conductivity (0.0557–0.0647 W m<sup>−1</sup> K<sup>−1</sup> at 25°C and normal pressure), lightweight (0.41–0.47 g cm<sup>−3</sup>), outstanding flame resistance (self-extinguishing time as short as 0.7 s), and high compressive modulus (20.611–32.656 MPa). Furthermore, PBz-MF demonstrates exceptional high-temperature resistance and shape-keeping properties even at 1100°C. This work provides valuable insights into the development of lightweight insulation materials and expands the potential applications of aerogel composites in thermal protection systems within the aerospace field.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 12","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Double-Network Preformed Particle Gel Based on Hydroxypropyl Methylcellulose and Hydrophobic Association for Conformance Control in Low-Permeability Fractured Reservoirs

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-28 DOI: 10.1002/app.56642

Zhe Li, Jiting Hao, Yao Lu, Bobo Zhou, Hongbin Yang, Haizhuang Jiang, Bauyrzhan Sarsenbekuly, Wanli Kang

{"title":"Double-Network Preformed Particle Gel Based on Hydroxypropyl Methylcellulose and Hydrophobic Association for Conformance Control in Low-Permeability Fractured Reservoirs","authors":"Zhe Li, Jiting Hao, Yao Lu, Bobo Zhou, Hongbin Yang, Haizhuang Jiang, Bauyrzhan Sarsenbekuly, Wanli Kang","doi":"10.1002/app.56642","DOIUrl":"https://doi.org/10.1002/app.56642","url":null,"abstract":"<div>\u0000 \u0000 <p>The conventional preformed particle gel (PPG) has certain problems of relatively poor strength and easy shear crushing after swelling during the in-depth conformance control process in low-permeability fractured reservoirs. Herein, a novel double-network PPG (DN-CPPG) based on biopolymer (hydroxypropyl methylcellulose, HPMC) and hydrophobic association (C<sub>16</sub> hydrophobic chain) was synthesized using a radical polymerization approach. The chemical structure, microscopic morphologies, and thermal tolerance were first characterized. Then, the swelling property, dynamic viscoelasticity, yield stress, and creep recovery ability of DN-CPPG were systematically investigated. The results revealed that the DN-CPPG exhibited an average diameter (d<sub>50</sub>) of approximately 27.12 μm and considerable thermal stability. Furthermore, it displayed superior viscoelastic properties, yield stress, and creep recovery behavior after the equilibrium swelling process compared to conventional PPG. This was attributed to the synergistic effects of newly developed DN and hydrophobic association, resulting in a tightly crosslinking network and strong gel strength. In addition, the DN-CPPG exhibited excellent mechanical strength, with higher fractured stress (278 kPa) and elongation strain (917%) compared to those of PPG (140 kPa and 666%) during the strain–stress sweep experiments. This newly formulated DN-CPPG serves as a promising conformance control material for low-permeability fractured reservoirs.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 12","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143404829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Infill Strategies on the Tensile Properties and Fracture Behavior of 3D-Printed Polylactic Acid

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-28 DOI: 10.1002/app.56644

Fazong Li, Yingping Ji, Fei Wang, Liangping Long, Heng Huang

引用次数: 0

Design and Development of Dual-Function Nano-CeO2-Integrated PUF/Epoxy Microcapsule Systems for Self-Healing and Corrosion-Resistant Epoxy Coatings

IF 2.7 3区化学

Journal of Applied Polymer Science Pub Date : 2024-12-28 DOI: 10.1002/app.56654

Chongwei Yin, Fengqiang Zhang, Xuena Zhang, Ting Wang, En Zeng

{"title":"Design and Development of Dual-Function Nano-CeO2-Integrated PUF/Epoxy Microcapsule Systems for Self-Healing and Corrosion-Resistant Epoxy Coatings","authors":"Chongwei Yin, Fengqiang Zhang, Xuena Zhang, Ting Wang, En Zeng","doi":"10.1002/app.56654","DOIUrl":"https://doi.org/10.1002/app.56654","url":null,"abstract":"<div>\u0000 \u0000 <p>A dual-function microcapsule system was developed to overcome the limitations of single-mechanism self-healing coatings. Nano-CeO<sub>2</sub> particles were embedded in a polyurea formaldehyde (PUF) shell, with epoxy resin encapsulated inside. SEM, FTIR, and XRD characterization confirmed the successful integration of CeO<sub>2</sub> and epoxy within the microcapsules. These microcapsules were incorporated into an epoxy resin-based coating at varying weight percentages to assess their impact on coating performance. EIS was employed to evaluate the self-healing properties of coatings with artificial scratches in simulated seawater. When the coating is damaged, CeO<sub>2</sub> is released and deposited on the metal surface, rapidly forming a passivation film that protects the substrate in advance. CeO<sub>2</sub> also releases cerium ions. A cerium hydroxide precipitate is formed by reacting with OH<sup>−</sup> produced in the cathode region. Prevents penetration of corrosive ions. Meanwhile, the microcapsules rupture, releasing epoxy resin to heal the cracks. Electrochemical Impedance Spectroscopy (EIS) results demonstrated that the optimal self-repair performance was achieved with 10 wt% microcapsules, while higher concentrations negatively affected the coating's adhesion. This dual-function microcapsule approach significantly improves both protective and self-healing capabilities, offering potential for advanced corrosion-resistant coatings.</p>\u0000 </div>","PeriodicalId":183,"journal":{"name":"Journal of Applied Polymer Science","volume":"142 13","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143466222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0