Progress in Organic Coatings最新文献

{"title":"Bioinspired coating with active-passive synergistic mechanism for enhanced fouling control","authors":"Tao Yu ,&nbsp;Qihang Zhou ,&nbsp;Jingyu Wang ,&nbsp;Jiangjiexing Wu ,&nbsp;Yu Lou ,&nbsp;Wei Qi ,&nbsp;Rongxin Su","doi":"10.1016/j.porgcoat.2025.109280","DOIUrl":"10.1016/j.porgcoat.2025.109280","url":null,"abstract":"<div><div>Marine antifouling coatings are widely used to address the common problem of biofouling in marine engineering due to their cost-effectiveness and convenience. However, designing environmentally friendly and efficient coatings that can effectively tackle the formation of biofouling remains a significant challenge. This study proposes a synergistic antifouling strategy combining both active and passive mechanisms, thereby achieving efficient and eco-friendly antifouling performance. Specifically, we designed and synthesized porous ruthenium selenide nanoparticles (P-RuSe₂ NPs) with dual enzyme-like activities (peroxidase and photoactivated oxidase), and combined them with a low-surface-energy coating to construct an antifouling system that integrates both active and passive synergistic functions. In this system, the low-surface-energy coating provides passive protection by reducing the initial attachment of biofouling organisms, while the P-RuSe₂ NPs actively kill bacteria through their excellent enzymatic catalytic activity, further enhancing the antifouling effect. After 180 days of marine immersion, the biofouling area of the coating was reduced by 86.22 % compared to the control sample, demonstrating exceptional long-term antifouling performance. This study not only verifies the significant effect of the synergistic antifouling performance of nanozymes and low-surface-energy coatings, but also provides innovative design ideas and technological directions for the development of novel, efficient, and environmentally friendly marine antifouling coatings.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109280"},"PeriodicalIF":6.5,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dopamine based effective anti-fogging coating with enhanced adhesion and durability","authors":"Xueyu Zhang,&nbsp;Xiaoyue Liang,&nbsp;Qi Zhao,&nbsp;Chunju He","doi":"10.1016/j.porgcoat.2025.109284","DOIUrl":"10.1016/j.porgcoat.2025.109284","url":null,"abstract":"<div><div>Hydrophilic coatings, an effective strategy to achieve anti-fogging performance on substrates, still face the problem of poor endurability. In this work, a hydrophilic antifogging coating consisting of poly (2-acrylamido-2-methylpropanesulfonic acid-<em>co</em>-butyl acrylate-<em>co</em>-dopamine methacrylamide) was constructed, which shows significant anti-fogging performance, notable abrasion resistance and excellent adhesion. The combination of strong interfacial adhesion and hydrophilic/hydrophobic structure is key to this approach, which avoids interfacial failure and swelling-induced wrinkles under typical fogging conditions. The adhesion strength is higher than most commercial glues and high-performance polymer adhesives in the literatures since the catechol groups endows the coating marvelous adhesion to the substrate. This study provides a promising avenue for the design and fabrication as well as practical application of anti-fogging coating with strong adhesion strength.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"205 ","pages":"Article 109284"},"PeriodicalIF":6.5,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bionic sustainable superhydrophobic coating featuring high durability, antifouling, and anticorrosion properties","authors":"Jianfu Wang,&nbsp;Wei Bing,&nbsp;Huichao Jin,&nbsp;Limei Tian","doi":"10.1016/j.porgcoat.2025.109264","DOIUrl":"10.1016/j.porgcoat.2025.109264","url":null,"abstract":"<div><div>Bionic microstructured surfaces, especially superhydrophobic surfaces, have been widely used in antifouling and anticorrosion. However, all microstructured surfaces face the common problem of poor durability, which limits the development of bionic microstructures. While the microstructures of plants and animals are also fragile, they are able to maintain their integrity through biological processes such as metabolism. Inspired by biological metabolism, this paper proposes a novel approach to constructing microstructured surfaces. By utilizing the differences in wear resistance between different materials in the coating, microstructures are continuously generated on the surface during friction, allowing for the continuous renewal of the microstructure during wear, ensuring the integrity of the surface microstructure and function. The coating formed by the combination of different materials not only achieves sustainable microstructure but also combines the superhydrophobicity of lotus leaves, the anti-adhesive properties of shark skin, and the “brick-and-mortar” structure of nacre, which effectively enhance the antifouling and anticorrosion performance of the coating. Based on this concept, an EP-PE superhydrophobic coating was developed using epoxy resin and polyethylene, exhibiting high mechanical properties as well as effective antifouling and anticorrosion capabilities. More importantly, the sustainable superhydrophobic coating can maintain the integrity of microstructure similar to living organism, which truly achieves the sustainability of the surface microstructure.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109264"},"PeriodicalIF":6.5,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrophobic and self-healing anti-corrosion coatings based on hybrid attapulgite-Ce-MOF pigment","authors":"Mustehsin Ali ,&nbsp;Hongwei Shi ,&nbsp;Bin Wu ,&nbsp;Faheem Jan ,&nbsp;Sharjeel Ahmed ,&nbsp;Nasir Ullah ,&nbsp;Yingwei Song ,&nbsp;En-Hou Han","doi":"10.1016/j.porgcoat.2025.109281","DOIUrl":"10.1016/j.porgcoat.2025.109281","url":null,"abstract":"<div><div>This study highlights the combined effect of a 2-methylimidazole cerium-based metal-organic framework (Ce-MOF) developed in situ on attapulgite (ATP) as a nano-hybrid inhibitor pigment (ACE). Hydrolytic condensation impregnated the ACE nanocomposite with a polysiloxane (POS) layer, resulting in the hydrophobic POS@ACE nanocomposite. Immersion studies on AA2024-T3 in a 3.5 wt% NaCl solution with nanocomposite demonstrated an inhibition efficiency (I.E.) of ∼99 %. The novel hydrophobic intelligent polyurethance (PU) coating (PU/POS@ACE) with varied concentrations (1, 3, 5, and 10 wt%) was formulated to examine its anti-corrosion properties. The findings show that after 45 days of electrochemical tests, PU/POS@ACE-10 % maintains the highest |Z|_0.01Hz value of 4.89 GΩ cm² and shows a 375 % increase in |Z|_0.01Hz compared to the blank PU under artificial scratch. This can be attributed to the release of Ce³⁺/Ce⁴⁺, which could generate insoluble passivation films at the alloy/coating interface. The modified coating exhibits substantial hydrophobicity, that ensures long-term anti-corrosion performance. MD-simulation shows strong binding energy (−7.054 eV) between the Ce molecule and Al (111) surface, and the charge distribution profile also shows strong chemisorptive integrity. This study proposes a new design strategy for green Ce-MOF nanocomposites for the development of intelligent protective coatings capable of tolerating distinct service environments.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109281"},"PeriodicalIF":6.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding and optimizing the activation mechanism of amide wax used as a rheological modifier in solvent-borne paint","authors":"Buğra Oğla,&nbsp;Alicia Gutierrez Garcia,&nbsp;Claus Erik Weinell,&nbsp;Kim Dam-Johansen","doi":"10.1016/j.porgcoat.2025.109278","DOIUrl":"10.1016/j.porgcoat.2025.109278","url":null,"abstract":"<div><div>Rheological modifiers adjust how paint behaves during and after application, ensuring smooth spreading, preventing drips or sagging, and maintaining uniform consistency. Some modifiers must undergo specific activation processes to achieve their full potential. Amide waxes are chemically characterized by their long-chain fatty acid structures and amide functional groups. Upon dissolving, the wax molecules align in fibrillar forms by intermolecular forces, and the consecutive network of fibrils increases viscosity. This study aims to identify the parameters influencing the activation of amide wax and propose an optimal activation method. The impact of polar solvents on amide wax's solubility and the resulting gel's structure was examined. Ethanol emerged as one of the most effective polar solvents, although optimal concentration is necessary; excessive amounts negatively affect solubility and lead to fractal gels beyond a certain concentration. Additionally, heat significantly influences activation, as higher temperatures are required for the dissolution of amide wax. Rheological curves indicate that amide wax molecules behave differently at elevated temperatures, depending on the presence of polar solvents. The study found that using an inline disperser is the most effective activation method, as it generates high shear rates to mechanically disperse the amide wax and produces heat to facilitate dissolution. Furthermore, the sagging limit of the paint film varied between 250 and 400 μm based on the activation method, despite maintaining a constant amount of amide wax. This finding suggests that optimal activation allows for achieving the desired film thickness with a reduced quantity of rheological additives.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109278"},"PeriodicalIF":6.5,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amino-functionalized MXene/cyclodextrin nanoreservoir reinforced epoxy for durable dual-function active/barrier anti-corrosion coating","authors":"Nafise Taheri ,&nbsp;Javad Mokhtari ,&nbsp;Bahram Ramezanzadeh","doi":"10.1016/j.porgcoat.2025.109279","DOIUrl":"10.1016/j.porgcoat.2025.109279","url":null,"abstract":"<div><div>A novel multifunctional nanohybrid (βSMX) was developed for the first time by decorating amino-silane-modified MXene (SMX) with an innovative nanocontainer, beta-cyclodextrin (β-CD), specifically designed for corrosion protection applications. The βSMX structures were designed to incorporate both organic (benzimidazole, B) and inorganic (Zn²⁺ cation, Z) inhibitors (βSMX@BZ), and their synergistic effects were comprehensively analyzed to develop a multifunctional intelligent anti-corrosion epoxy system. The βSMX@BZ nanohybrids were successfully synthesized, as confirmed through FTIR, Raman, XRD, TGA, FE-SEM, and EDS analysis. The pH-triggered release of corrosion inhibitors from βSMX@BZ nanoreservoirs was evaluated in NaCl solutions at three pHs. The release rates of the inhibitors from the β-CD inclusion complex, including zinc ions and benzimidazole molecules, were quantified using ICP-OES and UV–Vis spectroscopy. Electrochemical methods (polarization and EIS) combined with surface analysis were utilized to analyze the corrosion protection efficiency of functionalized MXene nanocontainers loaded with inhibitors in saline solution. Incorporating βSMX@BZ nanostructures within the scratched epoxy coatings led to a substantial rise in total resistance, up to 4.6 times. FE-SEM/EDS analysis demonstrated that a protective layer created by the released inhibitors is developed in the defected area. The existence of the βSMX@BZ nanohybrids within the coating substantially improved barrier performance, providing sustained corrosion protection for 7 weeks (|Z|_0.01Hz = 12.59 GΩ.cm²). The epoxy coating reinforced with βSMX@BZ nanocomposite demonstrated strong corrosion protection, excellent adhesion strength, and exceptional mechanical performance. According to the findings, the βSMX@BZ nanoreservoirs ensure that the organic coatings have both passive (ion-water barrier) and active (self-healing) properties.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109279"},"PeriodicalIF":6.5,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Development of lychee-like core-shell chlorophyll/epoxy@SiO2 microspheres via Pickering emulsion polymerization for enhanced photostability","authors":"Zilin Yi,&nbsp;Liang Fang,&nbsp;Xuetai Yu,&nbsp;Xiang Cheng,&nbsp;Chunhua Lu,&nbsp;Zhongzi Xu","doi":"10.1016/j.porgcoat.2025.109273","DOIUrl":"10.1016/j.porgcoat.2025.109273","url":null,"abstract":"<div><div>Chlorophyll (Chl), a natural pigment with significant applications in functional coatings, food processing and biomedical fields, suffers from poor photostability under light and oxygen exposure, limiting its practical use. Herein, a novel chlorophyll/epoxy@SiO₂ (Chl/EP@SiO₂) microsphere with a lychee-like core-shell structure was synthesized via Pickering emulsion polymerization. The modification level and amount of SiO₂ were systematically optimized, yielding microspheres with an average particle size of ∼15 μm and a shell thickness ranging from 0.9 <strong>to</strong> 1 μm. Two distinct preparation strategies were investigated: (i) incorporating Chl during emulsification step by premixing with bisphenol A diglycidyl ether (DGEBA) to produce ChlD/EP@SiO₂ microspheres, and (ii) introducing Chl during curing phase by mixing with m-xylylenediamine (MXDA) to form ChlM/EP@SiO₂ microspheres. ChlD/EP@SiO₂ microspheres exhibited uniform particle size distribution, with Chl showing no interference with the diffusion of MXDA or the curing reaction. Conversely, the diffusion of Chl in the curing process disrupted the SiO₂ adsorption equilibrium, leading to particle rearrangement, surface roughness, and non-uniform particle size distribution in ChlM/EP@SiO₂. Reflectance spectra and colorimetric analysis during photostability tests demonstrated that ChlD/EP@SiO₂ microspheres, used as fillers in polyurethane coatings, enhanced Chl photostability by 11-fold compared to unencapsulated Chl. Furthermore, encapsulating Chl within an epoxy core and SiO₂ shell improved its dispersion in waterborne polyurethane coatings. This lychee-like core-shell composite microsphere provides a promising platform for stabilizing and dispersing organic pigments in coating applications.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109273"},"PeriodicalIF":6.5,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734576","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amphiphilic fluorinated polynorbornene/silicone-based polyurea dual-network organogels with mechanical robustness, self-healing and anti-icing capability","authors":"Kai Gong,&nbsp;Xiaoxuan Liu,&nbsp;Yintan Huang,&nbsp;Shuangshuang Hu,&nbsp;Chunjie Xie,&nbsp;Lan Lei,&nbsp;Hui Li","doi":"10.1016/j.porgcoat.2025.109274","DOIUrl":"10.1016/j.porgcoat.2025.109274","url":null,"abstract":"<div><div>The development of mechanically durable ice-phobic organogels with low ice adhesion, mechanical robustness, and low-temperature self-healing capabilities has proven to be both challenging and valuable. In this study, we present organogels (ANDFG/PDUS) with varying dimethyl silicone oil contents (0–80 wt%), which are based on a dual-network structure comprising amphiphilic fluorinated polynorbornene (ANDFG) and silicone-based polyurea (PDUS). The ANDFG network was well-designed through ring-opening metathesis polymerization (ROMP), employing norbornenyl decafluoroheptyl ester (NDF) and norbornenyl pyrrolidone ester (NHP) as monomers, and norbornenyl dinorbornene isophorone diisocyanate cyanide ester (NIPDI) as the cross-linking agent. Additionally, a polyaddition process involving isophorone diisocyanate, aminopropyl-terminated polydimethylsiloxane, and 2-aminophenyl disulfide as monomers was used to produce a PDUS network characterized by dynamic disulfide bonds. The mechanical behavior, anti-icing properties, and self-healing capabilities of the ANDFG/PDUS organogels were comprehensively investigated. The tensile strength (0.66–1.91 MPa) can be effectively tuned by adjusting the mass fractions of the silicone oil, benefiting from the well-designed dual networks and the synergistic strengthening of molecular interactions, including hydrogen and disulfide bonds. Notably, all organogels demonstrated a self-healing efficiency &gt;90 % within 6 h at 30 °C, attributed to the reversible dissociation and reconnection of dynamic disulfide and hydrogen bonding interactions within the crosslinked networks. Furthermore, the ANDFG/PDUS-4 organogels, with 80 % silicone oil content, exhibited a high mechanical strength of 0.66 MPa and outstanding anti-icing performance, maintaining a low ice shear strength of 8.84 kPa at −20 °C, which remained below 15 kPa even after 25 icing-deicing cycles. This effective anti-icing behavior can be attributed to the synergistic effects of the low surface energy and hydrophobic properties of the norbornene decafluoroheptyl ester chain segments, along with the lubricating layers of silicone oil and hydration layer formed by the hydrophilic pyrrolidone chain segments that interacts with water through hydrogen bonds. This study provides a promising approach for the convenient development of low-temperature self-healing anti-icing materials with high mechanical durability.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109274"},"PeriodicalIF":6.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Critical investigation of the long-term integrity of sustainable anti-corrosion coatings in static and dynamic humid environments","authors":"Kazem Sabet-Bokati ,&nbsp;Ehsan Bakhshandeh ,&nbsp;Zhila Russell ,&nbsp;Marciel Gaier ,&nbsp;Kevin P. Plucknett","doi":"10.1016/j.porgcoat.2025.109276","DOIUrl":"10.1016/j.porgcoat.2025.109276","url":null,"abstract":"<div><div>This study evaluated the water-induced degradation of epoxy-based coatings modified with eco-friendly corrosion inhibitors in static and dynamic humid environments, designed to replicate conditions characteristic of marine exposure. Using electrochemical impedance spectroscopy, surface and interfacial analyses, and mechanical testing, degradation of coatings applied on mild steel samples was assessed under stagnant, flowing, and salt-spray conditions. The degradation trend of coatings significantly increased in salt-spray tests through elevated temperature (35 °C) and water-induced degradation of the epoxy matrix. Hydrodynamic flow also accelerated degradation through enhanced water diffusion and stresses arising from both water absorption and flow. Pure epoxy coatings lost their protective properties after 90 days in stagnant solutions, 77 days in flowing solutions, and 56 days in salt spray tests. Incorporating calcium borosilicate (CBS), zinc calcium strontium aluminum orthophosphate silicate hydrate (ZCP), and strontium phosphosilicate (SPS) into the epoxy matrix delayed water uptake and coating delamination. CBS-modified coatings extended protection more than twofold in stagnant and flowing environments, with performance in salt spray comparable to pure epoxy. ZCP-pigmented coatings preserved their integrity in stagnant conditions and doubled protection in salt spray and flowing scenarios. SPS-pigmented coatings demonstrated exceptional durability, maintaining integrity for over 210 days across all conditions. These results highlight the critical role of selecting inhibitors suited to specific environmental conditions and demonstrate that water-induced degradation of epoxy coatings is governed by multifaceted interplay of the coating's mechanical properties, interfacial electrochemical activities, and changes in the chemistry of environment at the metal-coating interface.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109276"},"PeriodicalIF":6.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143716187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of multiple mechanisms in the development of high-performance sound-insulating waterborne coatings with inorganic and organic fillers","authors":"Lei Zhou ,&nbsp;Zijuan Huang ,&nbsp;Haitong Liu ,&nbsp;Jing Wang ,&nbsp;Liang Fang ,&nbsp;Chunhua Lu ,&nbsp;Zhongzi Xu","doi":"10.1016/j.porgcoat.2025.109275","DOIUrl":"10.1016/j.porgcoat.2025.109275","url":null,"abstract":"<div><div>This study explores the sound insulation performance of various fillers in waterborne coatings, focusing on calcium carbonate and lighter organic alternatives. The sound insulation performance and mechanism of calcium carbonate were investigated, followed by the preparation of waterborne sound insulation coatings using lighter organic fillers. Two types of organic macromolecules (PVB and rubber granules) and two organic small molecules (AO-70 and AO-80) were selected. The particle size in the sound insulation equation for polymer/solid inorganic particle composites was corrected to predict and adjust the sound insulation of the composites. Impedance tube tests, scanning electron microscopy, and mechanical property analysis were utilized to systematically investigate the sound insulation performance of each filler and the relevant factors affecting STL. Compared to CaCO₃, waterborne coatings made with organic fillers demonstrated excellent sound insulation performance. At an addition level of 20 phr, the average sound insulation of PVB and rubber granules increased from 17.47 dB to 21.17 dB and 23.496 dB, respectively. The sound insulation of AO-70 reached 21.972 dB at an addition of 30 phr, while the coating with 20 phr of AO-80 achieved 23.626 dB. The sound insulation mechanism of CaCO₃ primarily relies on sound energy reflection, whereas polymer organic fillers offer better compatibility and tighter bonding with the matrix, as well as the unique viscoelasticity of polymer, resulting stronger matrix absorption and filler damping effects. Hindered phenol small molecule filler has excellent dissipation ability for sound wave due to the formation of reversible hydrogen bond and super damping element. Therefore, it shows the best sound insulation performance under the synergy of reflection, absorption and damping mechanisms.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"204 ","pages":"Article 109275"},"PeriodicalIF":6.5,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143726078","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}