Progress in Organic Coatings最新文献_第3页

Research progress on photodiscoloration mechanism and functional regulation in wood 木材光变色机理及功能调控研究进展

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-22 DOI: 10.1016/j.porgcoat.2025.109532

Wenwen Liu , Lili Li , Zhiying Luo , De Liu , Ximing Wang

{"title":"Research progress on photodiscoloration mechanism and functional regulation in wood","authors":"Wenwen Liu , Lili Li , Zhiying Luo , De Liu , Ximing Wang","doi":"10.1016/j.porgcoat.2025.109532","DOIUrl":"10.1016/j.porgcoat.2025.109532","url":null,"abstract":"<div><div>Wood, as a naturally renewable material, possesses unique attributes such as distinctive grain patterns, a warm texture, and excellent workability. These features render indispensable in fields like construction, furniture making, and the creation of art objects. However, wood is susceptible to chemical degradation when exposed to sunlight, leading to surface discoloration, yellowing, and even structural damage. These issues not only severely affect its appearance but also significantly shorten its lifespan. Therefore, this paper investigates the mechanisms behind wood photodiscoloration, systematically analyzes internal factors such as species differences, types and content of extractives, moisture content, as well as external environmental factors including light intensity, temperature, and oxygen exposure. Furthermore, the paper reviews current functional improvement technologies, surface coating treatments, and surface modification of biomass photoprotective film. This work provides a theoretical basis for enhancing wood light resistance and developing efficient protective technologies.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109532"},"PeriodicalIF":6.5,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144678834","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}

引用次数: 0

High ethanol tolerance and Ca2+ stability polyacrylate latex binder for universal water-based inks constructed by active emulsifier and low acid value alkali soluble resin 以活性乳化剂和低酸值碱溶性树脂配制的通用水性油墨用高乙醇耐受性和高Ca2+稳定性聚丙烯酸酯胶乳粘合剂

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-22 DOI: 10.1016/j.porgcoat.2025.109524

Junchao Zhang, Xiyao Tian, Yuning Ma, Yang Yu, Jiajun Li, Shirui Lv, Liangyun Yu, Xintong Liu, Xiulan Xin

{"title":"High ethanol tolerance and Ca2+ stability polyacrylate latex binder for universal water-based inks constructed by active emulsifier and low acid value alkali soluble resin","authors":"Junchao Zhang, Xiyao Tian, Yuning Ma, Yang Yu, Jiajun Li, Shirui Lv, Liangyun Yu, Xintong Liu, Xiulan Xin","doi":"10.1016/j.porgcoat.2025.109524","DOIUrl":"10.1016/j.porgcoat.2025.109524","url":null,"abstract":"<div><div>With the increasingly strict requirements for water-based ink printing quality and the expansion of application scenarios, dryness, adhesion, and levelling property have gradually become the printing industry's focus. This paper successfully synthesized a self-crosslinking polyacrylate latex stabilized by low acid value alkali soluble resins (ASR) and reactive emulsifier by pre-emulsification semi-continuous seed emulsion polymerization. Moreover, polyaryl polyoxyethylene sulfate ammonium salt (MORS-10) was used as an anionic reactive emulsifier, and crosslinking structure was constructed by diacetone acrylamide (DAAM) and adipic acid dihydrazide (ADH). The influence of reactive emulsifiers and low acid value ASR on the properties of polyacrylate latex was studied in detail. Compared to latex stabilized by ASR alone, and latex co-stabilized by ASR and sodium dodecyl sulfate (SDS), the latex stabilized by ASR and MORS-10 has better ethanol and Ca<sup>2+</sup> stability, in particular, when MORS-10 accounts for 3 % of the monomer and ASR solids, there is no coagulum generated when diluted with anhydrous ethanol at the mass ratio of 1:1, and the resulting coagulum after mixed with 2 % CaCl<sub>2</sub> to 40 % of the latex mass is negligible. Meanwhile, the adhesion of inks made of it all achieves 100 % on biaxially oriented polypropylene (BOPP), polyethylene terephthalate (PET), and aluminum foil. In addition, with the introduction of small molecule emulsifier, the redissolution of the ink is slightly improved, and SDS has a greater impact than MORS-10. The above findings provide a creative design idea and inspiration for the design of water-based ink binders with high stability and strong versatility.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109524"},"PeriodicalIF":6.5,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144678833","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}

引用次数: 0

Designing of smart epoxy nanocomposites on Mg alloy that synergistically combine the barrier enhancement of ZIF-8 with pH-triggered release of a green inhibitor 基于镁合金的智能环氧纳米复合材料的设计，该复合材料将ZIF-8的屏障增强与ph触发的绿色抑制剂释放协同结合

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-21 DOI: 10.1016/j.porgcoat.2025.109531

Dan Xu , Peichun Tang , Yuejun Ouyang , Hongjie Bi , Gaoyuan Ye , Hongquan Fu , Yao Xiao , Dongmei Pu , Qiwen Yong , Zhi-Hui Xie

{"title":"Designing of smart epoxy nanocomposites on Mg alloy that synergistically combine the barrier enhancement of ZIF-8 with pH-triggered release of a green inhibitor","authors":"Dan Xu , Peichun Tang , Yuejun Ouyang , Hongjie Bi , Gaoyuan Ye , Hongquan Fu , Yao Xiao , Dongmei Pu , Qiwen Yong , Zhi-Hui Xie","doi":"10.1016/j.porgcoat.2025.109531","DOIUrl":"10.1016/j.porgcoat.2025.109531","url":null,"abstract":"<div><div>The incorporation of functional nanomaterials into organic coatings offers an effective route to bolster metal corrosion resistance. Here, we report a sustainable and green isatin–Schiff base inhibitor (PHIO), synthesized via condensation of isatin and 3,4-difluorobenzenamine (DFBH), and its one-pot encapsulation within ZIF-8 to yield PHIO@ZIF-8 smart nanomaterials. These nanomaterials were dispersed into an epoxy matrix to fabricate corrosion-resistant epoxy nanocomposites on Mg alloy. The chemical identity of PHIO was confirmed by FTIR, <sup>1</sup>H NMR and <sup>13</sup>C NMR, while both electrochemical tests and DFT calculations verified its strong inhibitory effect on Mg alloy. The morphology, crystallinity, loading and release kinetics of PHIO@ZIF-8 were characterized by SEM, XRD, FTIR, XPS, TGA and UV–Vis spectroscopy. EIS and salt-spray tests revealed that the coating containing 2 wt% PHIO@ZIF-8 retained a low-frequency impedance modulus of 5.43 × 10<sup>7</sup> Ω·cm<sup>2</sup> after 28 days, which was 55-fold higher than pure epoxy, signifying exceptional long-term protection. These findings offer a sustainable strategy for synthesizing high-performance and green inhibitor for Mg alloy, and demonstrate the markedly enhanced the corrosion resistance of the epoxy incorporated with the PHIO@ZIF-8 nanomaterials.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109531"},"PeriodicalIF":6.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672217","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}

引用次数: 0

Microstructure, properties and synergistic effect of GO/CNTs hybrid reinforced polypyrrole coatings prepared by a one-step electropolymerization for 304 stainless steel bipolar plates in PEMF cells 304不锈钢双极板一步电聚合制备氧化石墨烯/碳纳米管杂化增强聚吡咯涂层的微观结构、性能及协同效应

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-21 DOI: 10.1016/j.porgcoat.2025.109535

Ruiqing Ding , Yimeng Li , Ziliang Liu , Zhen Ma , Xiaohui Jiang , Jiaming Cao , Bin Zhao , Ke Zhan

{"title":"Microstructure, properties and synergistic effect of GO/CNTs hybrid reinforced polypyrrole coatings prepared by a one-step electropolymerization for 304 stainless steel bipolar plates in PEMF cells","authors":"Ruiqing Ding , Yimeng Li , Ziliang Liu , Zhen Ma , Xiaohui Jiang , Jiaming Cao , Bin Zhao , Ke Zhan","doi":"10.1016/j.porgcoat.2025.109535","DOIUrl":"10.1016/j.porgcoat.2025.109535","url":null,"abstract":"<div><div>The good electrical conductivity and excellent corrosion resistance of conductive polymer coatings are two important factors for protecting metallic bipolar plates of proton exchange membrane fuel cells (PEMFCs). Here, GO/CNTs hybrid reinforced polypyrrole (PPY) coatings were prepared on 304 stainless steel (304SS) samples to protect them against corrosion in PEMFCs corrosive operating environments by a one-step electropolymerization. The microstructure, corrosion resistance and electrical conductivity of GO/CNTs hybrid reinforced PPY composite coatings were investigated. Electrochemical testing results demonstrated that the GO/CNTs/PPY coatings achieved optimal corrosion resistance and electrical conductivity when the GO/CNTs hybrid reinforcement with a low CNTs content. The polarized current density of 304SS covered with optimized GO/CNTs hybrid reinforced PPY composite coating was significantly reduced to 8.62 μA/cm<sup>2</sup>, while the interfacial contact resistance was 130.5 mΩ cm<sup>2</sup>. The enhanced corrosion protection and good electrical conductivity of the GO/CNTs/PPY composite coating can be ascribed to the conductive network formed by the GO/CNTs hybrid reinforcement and the microscopic interaction between the carbon reinforcement and the polypyrrole.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109535"},"PeriodicalIF":6.5,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144678893","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}

引用次数: 0

Synthesis of dicarboxylic acid compound structurally analogous to bisphenol A: for development of stable waterborne epoxy coatings 结构类似双酚A的二羧酸类化合物的合成：用于研制稳定水性环氧涂料

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-18 DOI: 10.1016/j.porgcoat.2025.109525

Mengtong Wang , Ying Miao , Rikun Liu , Liang Shen , Yingying Du , Changqing Fu

{"title":"Synthesis of dicarboxylic acid compound structurally analogous to bisphenol A: for development of stable waterborne epoxy coatings","authors":"Mengtong Wang , Ying Miao , Rikun Liu , Liang Shen , Yingying Du , Changqing Fu","doi":"10.1016/j.porgcoat.2025.109525","DOIUrl":"10.1016/j.porgcoat.2025.109525","url":null,"abstract":"<div><div>The use of bisphenol A (BPA) in traditional waterborne epoxy coating formulations is harmful to human health, and the low toughness of the cured film severely limits its application in many areas. Most BPA alternatives enhance the toughness of the epoxy cured film but compromise the coating's properties to varying degrees. Therefore, developing a BPA alternative that toughens epoxy resins without sacrificing modulus and mechanical strength remains a significant challenge. In this study, we synthesized dicarboxylic acid compound (PNP) with a structure similar to BPA, using phthalic anhydride and neopentyl glycol. This compound serves as a substitute for BPA. We systematically explored the influence of different PNP contents on the performance of waterborne epoxy resins and coatings. The results showed that PNP is more conducive to preparing waterborne epoxy resins with smaller particle sizes and stable heat storage. Compared with BPA-modified epoxy resin, PNP significantly increases the elongation at break and tensile strength of the cured film. Moreover, different PNP contents can significantly improve the coating's impact resistance, pull-off adhesion, water resistance, salt spray resistance, and acid resistance without affecting other mechanical properties and alkali resistance. This study provides a new perspective for preparing environmentally friendly, high-performance, tough, and stable waterborne epoxy coatings.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109525"},"PeriodicalIF":6.5,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662859","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}

引用次数: 0

A resilient superhydrophobic photothermal SiC/carbon coating for enhanced anti-icing and deicing performance under extreme environmental conditions 一种弹性超疏水光热SiC/碳涂层，可在极端环境条件下增强抗冰和除冰性能

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-18 DOI: 10.1016/j.porgcoat.2025.109523

Sumit Barthwal , Daehee Kang , Si-Hyung Lim

{"title":"A resilient superhydrophobic photothermal SiC/carbon coating for enhanced anti-icing and deicing performance under extreme environmental conditions","authors":"Sumit Barthwal , Daehee Kang , Si-Hyung Lim","doi":"10.1016/j.porgcoat.2025.109523","DOIUrl":"10.1016/j.porgcoat.2025.109523","url":null,"abstract":"<div><div>Icing poses significant economic and safety challenges. While superhydrophobic surfaces offer excellent water repellency and reduced ice adhesion, their limited durability in cold conditions restricts practical use. To address this, photothermal superhydrophobic surfaces have been developed, but achieving high photothermal efficiency, exceptional anti-icing performance, and durability remains a challenge. In this study, a durable superhydrophobic photothermal anti-icing (SPAI) surface was fabricated on aluminum (Al) using SiC and carbon particles (CS) via a two-step spraying process. The SPAI surface was fabricated by applying an epoxy resin layer on aluminum surface, followed by spraying a mixture of modified SiC, and CS with polydimethylsiloxane (PDMS). The resulting surface demonstrated (i) excellent water repellency, with a water contact angle of 161° and a rolling angle of 5°, (ii) outstanding photothermal performance, achieving a 72.3 °C temperature increase under 1 sun illumination for 300 s, and (iii) superior mechanical stability and long-term durability. The SPAI coating demonstrated excellent anti-icing, deicing, and defrosting performance at −25 °C, with a freezing delay of 492 s and deicing/defrosting times of 130 and 141 s, respectively, under 1 sun exposure. It exhibited low ice adhesion strength (45 ± 10 kPa at −20 °C) and maintained durability, with ice adhesion remaining ~99 kPa after 13 icing/deicing cycles. Durability was validated through abrasion, cross-cut tape adhesion, and freeze-thaw tests. The surface also exhibited non-wetting properties when exposed to various food liquids and demonstrated excellent long-term stability in ambient conditions. The proposed surface offers a scalable, durable solution for anti-icing and deicing.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109523"},"PeriodicalIF":6.5,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654597","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}

引用次数: 0

A phosphorus-imidazole-based ionic liquid curing agent with high fire resistance and rapid curing capability, endowing epoxy resins with ultra-high toughness 一种磷基咪唑离子液体固化剂，具有高耐火性和快速固化能力，使环氧树脂具有超高韧性

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-17 DOI: 10.1016/j.porgcoat.2025.109522

Yijing Chen , Han Feng , RanRan Li , Chunhong Zhang , Yuhui Ao , Lei Shang

{"title":"A phosphorus-imidazole-based ionic liquid curing agent with high fire resistance and rapid curing capability, endowing epoxy resins with ultra-high toughness","authors":"Yijing Chen , Han Feng , RanRan Li , Chunhong Zhang , Yuhui Ao , Lei Shang","doi":"10.1016/j.porgcoat.2025.109522","DOIUrl":"10.1016/j.porgcoat.2025.109522","url":null,"abstract":"<div><div>In this work, the synthesis of simple and convenient flame retardant curing agents for epoxy resin (EP) was investigated to solve the problems of existing flame retardant curing agents due to their complicated preparation process and poor mechanical properties. In this paper, a new type of ionic liquid curing agent (ZIM) was successfully synthesized by introducing a one-step reaction between n-octylphosphoric acid (OPA), which contains a flexible chain, and imidazole (IM) at room temperature. The results showed that the curing agent had a gel time of only 3.5 min at 120 °C, and could achieve UL94 V-0 rating with an ultimate oxygen index of 32 % or more at any additive amount of 15 phr or more. The peak exothermic rate and total exothermic rate are reduced by 55.45 % and 33.45 %, which can meet the requirements of fire safety standards in the industrial field. In addition, the incorporation of flexible chain segments and the absorption of energy dissipation by ionic bonding resulted in a 118.33 % increase in elongation at break and 127.44 % increase in impact strength of EP/ZIM-15, which greatly improved the mechanical properties. This work provides an efficient and simple method for preparing high performing EP curing agents.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109522"},"PeriodicalIF":6.5,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654665","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}

引用次数: 0

Bio-based waterproof and oil-repellent coatings for paper packaging: Synergistic effect of oleyl alcohol and chitosan on performance enhancement 纸包装用生物基防水拒油涂料：油醇和壳聚糖对性能增强的协同作用

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-17 DOI: 10.1016/j.porgcoat.2025.109526

Jingting Fang, Jing Wang, Yingying Han, Dongming Qi, Tao Chen

{"title":"Bio-based waterproof and oil-repellent coatings for paper packaging: Synergistic effect of oleyl alcohol and chitosan on performance enhancement","authors":"Jingting Fang, Jing Wang, Yingying Han, Dongming Qi, Tao Chen","doi":"10.1016/j.porgcoat.2025.109526","DOIUrl":"10.1016/j.porgcoat.2025.109526","url":null,"abstract":"<div><div>Compared to petroleum-based plastics, paper-based materials are biodegradable and renewable, effectively easing resource overconsumption and environmental pollution issues. However, their poor water and oil repellency restricts applications in food packaging. Adding water and oil repellents can enhance paper's barrier properties, but traditional fluorine-containing coatings pose health risks like biotoxicity, accumulation, and migration, leading to global regulatory restrictions. Thus, developing green, biodegradable, bio-based water and oil repellent coatings is the future trend. In this study, taking advantage of the high reactivity of cyanuric chloride (TCT), a chitosan-derived coating (CHI-g-OA<sub>2</sub>) with a double hydrophobic chain structure was successfully constructed. The formula for the preparation was optimized by the response surface method. This “molecular modification” strategy, which grafts hydrophobic oleyl alcohol chains onto chitosan molecular chains to successfully construct a hydrophobic barrier, effectively solves the problem where competitive hydrogen bonding disrupts the dense hydrogen bond network formed within and between chitosan molecules, leading to significant attenuation of barrier performance. It also achieves the synergistic improvement of the material's waterproof and oil-repellent properties while retaining the original oil and gas barrier function, which meets the standard for food packaging materials. In addition, the tensile strength of the coated paper has been increased, showing good mechanical and thermal stability.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109526"},"PeriodicalIF":6.5,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654666","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}

引用次数: 0

Epoxy-functionalized coatings via free radical polymerization: Spray-drying enabled interfacial engineering for high-performance SBR/Kaolin composites 自由基聚合的环氧功能化涂层：用于高性能SBR/高岭土复合材料的喷雾干燥界面工程

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-17 DOI: 10.1016/j.porgcoat.2025.109529

Yuxin Wu , Guangyang He , Mengyue Liu , Lei Huang , Yixin Xiang

{"title":"Epoxy-functionalized coatings via free radical polymerization: Spray-drying enabled interfacial engineering for high-performance SBR/Kaolin composites","authors":"Yuxin Wu , Guangyang He , Mengyue Liu , Lei Huang , Yixin Xiang","doi":"10.1016/j.porgcoat.2025.109529","DOIUrl":"10.1016/j.porgcoat.2025.109529","url":null,"abstract":"<div><div>In this study, an epoxy-functionalized copolymer, poly(isoprene-<em>co</em>-glycidyl methacrylate) (PIPGMA), was synthesized via free radical polymerization. The influence of monomer molar ratios (GMA/IP = 10–20 %) and number-average molecular weights (<em>M</em><sub>n</sub> = 3–15 kDa) on the surface modification of kaolin and the resulting reinforcement behavior in styrene-butadiene rubber (SBR) composites was systematically evaluated. Based on performance optimization results, the epoxy-functionalized copolymer with a glycidyl methacrylate (GMA)-to-isoprene (IP) molar feed ratio of 15 % and the <em>M</em><sub>n</sub> of 6 kDa was selected for subsequent studies. The epoxy-functionalized copolymer was employed as an interfacial coating, spray-coated onto kaolin surfaces, and dried to prepare modified kaolin (GMA-Kaolin). The modified GMA-Kaolin filler exhibited excellent dispersion and interfacial compatibility in SBR composites. At a loading of 20 phr, the tensile strength of SBR/GMA-Kaolin composites attained 6.57 MPa, representing a 54 % enhancement compared to unmodified kaolin. Additionally, the compression set of SBR/GMA-Kaolin composites was reduced by up to 36.39 % relative to SBR/Kaolin composites. Furthermore, significant improvements in stress relaxation and stress softening properties were observed.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109529"},"PeriodicalIF":6.5,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654662","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}

引用次数: 0

Lysine-based curing agents: A green synthesis strategy for photoluminescent epoxy resins with novel lactam side groups 赖氨酸固化剂：具有新型内酰胺侧基的光致发光环氧树脂绿色合成策略

IF 6.5 2区材料科学

Progress in Organic Coatings Pub Date : 2025-07-17 DOI: 10.1016/j.porgcoat.2025.109530

Zhi Qiao , Weiwei Liu , Meng Yang , Shan Mei , Wei Liu , Aiguo Zheng , Sa Wang , Hui Yuan , Liying He , Xiaoxin Zhang , Baoning Zong

{"title":"Lysine-based curing agents: A green synthesis strategy for photoluminescent epoxy resins with novel lactam side groups","authors":"Zhi Qiao , Weiwei Liu , Meng Yang , Shan Mei , Wei Liu , Aiguo Zheng , Sa Wang , Hui Yuan , Liying He , Xiaoxin Zhang , Baoning Zong","doi":"10.1016/j.porgcoat.2025.109530","DOIUrl":"10.1016/j.porgcoat.2025.109530","url":null,"abstract":"<div><div>The performance of polymer materials is largely determined by the structures of their side groups, such as alkyl, aromatic, or ester ring groups. Therefore, the development of polymers with novel side groups is of great significance in the field of new functional polymers. To date, polymers containing lactam ring side groups have not been reported. In this study, a bio-based amino-caprolactam epoxy curing agent was successfully used to prepare polyether amine epoxy resin with lactam side groups. The results showed that the addition of the amino-caprolactam curing agent increased the glass transition temperature, char residue, tensile strength, and hardness of the polyether amine epoxy resins. Additionally, this epoxy resin possessed good photoluminescence properties due to the lactam side groups, and its application in coatings and adhesives was investigated. It was found that this epoxy resin can serve as a protective barrier against harmful short-wavelength ultraviolet and high-energy blue-violet light (380–500 nm). Furthermore, due to the unique lactam bond structures, this polymer is expected to have tremendous potential for preparing new functional materials through the ring-opening reaction of lactam groups, such as polyelectrolyte materials and chain extenders for polyamides and polyesters.</div></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":"208 ","pages":"Article 109530"},"PeriodicalIF":6.5,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144654596","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}

引用次数: 0