{"title":"通过芯层中的环氧浓度调节环氧-丙烯酸酯芯壳纳米结构薄膜的机械性能","authors":"Eyann Lee, Zulkifli Mohamad Ariff, Mohamad Danial Shafiq, Raa Khimi Shuib, Muhamad Sharan Musa","doi":"10.1007/s11998-023-00888-y","DOIUrl":null,"url":null,"abstract":"<div><p>Epoxy-acrylate (EA) core–shell nanoparticles have gained significant attention recently due to their dual unique properties as heterogeneous materials, particularly in coating applications. However, the effect of epoxy (EP) concentration in core layer on mechanical properties is still limited, and the mechanism of how it affects the film's performance is not well understood. In this study, we investigate the effect of varying EP concentration in the core layer on the mechanical properties of nanostructured films containing EA core–shell nanoparticles. The core–shell nanoparticles were synthesized through multistage seeded emulsion polymerization. The transmission electron microscopy (TEM) images revealed similar particle morphology and size in all EA nanoparticles. Differential scanning calorimetry (DSC) analysis confirmed the successful synthesis of core–shell particle morphology with two glass transition temperature (<i>T</i><sub>g</sub>) values (~12 °C and ~ 60 °C) observed for the core and shell layers, respectively. We observed an increase in the <i>T</i><sub>g</sub> values of the shell layer with higher EP content in the core layer. The use of EP-based copolymers raised the <i>T</i><sub>g</sub> values of the shell layer, significantly affecting the film formation behavior and their mechanical properties through interlayer crosslinking. Tensile modulus values for the films ranged from 200 to 500 MPa, marking the highest modulus reported for cast films of EA nanostructured films. Our findings reveal a straightforward and versatile method for producing high-modulus EA nanostructured films with customizable mechanical properties, making the model ideal for enhancing wood coating performance.</p></div>","PeriodicalId":619,"journal":{"name":"Journal of Coatings Technology and Research","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Tuning the mechanical properties of epoxy-acrylate core–shell nanostructured film via epoxy concentration in the core layer\",\"authors\":\"Eyann Lee, Zulkifli Mohamad Ariff, Mohamad Danial Shafiq, Raa Khimi Shuib, Muhamad Sharan Musa\",\"doi\":\"10.1007/s11998-023-00888-y\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Epoxy-acrylate (EA) core–shell nanoparticles have gained significant attention recently due to their dual unique properties as heterogeneous materials, particularly in coating applications. 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The use of EP-based copolymers raised the <i>T</i><sub>g</sub> values of the shell layer, significantly affecting the film formation behavior and their mechanical properties through interlayer crosslinking. Tensile modulus values for the films ranged from 200 to 500 MPa, marking the highest modulus reported for cast films of EA nanostructured films. Our findings reveal a straightforward and versatile method for producing high-modulus EA nanostructured films with customizable mechanical properties, making the model ideal for enhancing wood coating performance.</p></div>\",\"PeriodicalId\":619,\"journal\":{\"name\":\"Journal of Coatings Technology and Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2024-02-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Coatings Technology and Research\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11998-023-00888-y\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Coatings Technology and Research","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11998-023-00888-y","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
摘要
环氧丙烯酸酯(EA)核壳纳米粒子因其作为异质材料所具有的双重独特性能,尤其是在涂层应用方面的性能,近来受到了广泛关注。然而,芯层中环氧树脂(EP)浓度对机械性能的影响仍然有限,而且对其如何影响薄膜性能的机理也不甚了解。在本研究中,我们研究了芯层中环氧树脂浓度的变化对含有 EA 核壳纳米粒子的纳米结构薄膜力学性能的影响。核壳纳米粒子是通过多级种子乳液聚合法合成的。透射电子显微镜(TEM)图像显示,所有 EA 纳米粒子的形态和尺寸相似。差示扫描量热法(DSC)分析证实了核壳粒子形态的成功合成,并观察到核层和壳层分别具有两个玻璃化转变温度(Tg)值(~12 °C和~60 °C)。我们观察到,芯层中 EP 含量越高,外壳层的 Tg 值也越高。使用 EP 共聚物提高了外壳层的 Tg 值,通过层间交联显著影响了薄膜的形成行为及其机械性能。薄膜的拉伸模量值介于 200 到 500 兆帕之间,是目前所报道的 EA 纳米结构铸膜的最高模量。我们的研究结果揭示了一种生产具有可定制机械性能的高模量 EA 纳米结构薄膜的直接而通用的方法,使该模型成为提高木质涂层性能的理想选择。
Tuning the mechanical properties of epoxy-acrylate core–shell nanostructured film via epoxy concentration in the core layer
Epoxy-acrylate (EA) core–shell nanoparticles have gained significant attention recently due to their dual unique properties as heterogeneous materials, particularly in coating applications. However, the effect of epoxy (EP) concentration in core layer on mechanical properties is still limited, and the mechanism of how it affects the film's performance is not well understood. In this study, we investigate the effect of varying EP concentration in the core layer on the mechanical properties of nanostructured films containing EA core–shell nanoparticles. The core–shell nanoparticles were synthesized through multistage seeded emulsion polymerization. The transmission electron microscopy (TEM) images revealed similar particle morphology and size in all EA nanoparticles. Differential scanning calorimetry (DSC) analysis confirmed the successful synthesis of core–shell particle morphology with two glass transition temperature (Tg) values (~12 °C and ~ 60 °C) observed for the core and shell layers, respectively. We observed an increase in the Tg values of the shell layer with higher EP content in the core layer. The use of EP-based copolymers raised the Tg values of the shell layer, significantly affecting the film formation behavior and their mechanical properties through interlayer crosslinking. Tensile modulus values for the films ranged from 200 to 500 MPa, marking the highest modulus reported for cast films of EA nanostructured films. Our findings reveal a straightforward and versatile method for producing high-modulus EA nanostructured films with customizable mechanical properties, making the model ideal for enhancing wood coating performance.
期刊介绍:
Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.