{"title":"面向多功能开发的 PI-PDA@PSF@TO 复合涂层:自润滑、自修复和耐热性","authors":"","doi":"10.1016/j.porgcoat.2024.108723","DOIUrl":null,"url":null,"abstract":"<div><p>To facilitate versatile application of polyimide (PI) under harsh conditions, the PI-PDA@PSF@TO coating was successfully developed. The results illustrate the successful formation of PSF@TO microcapsules by encapsulating tung oil (TO) into polysulfone (PSF). After the modification of polydopamine (PDA), PDA@PSF@TO microcapsules exhibit superior dispersion within the coating compared to PSF@TO, resulting in a 16.8 % increase in tensile strength. Moreover, upon coating damage, the released TO can shield the samples in salt environment for a duration of 8 days. In comparison to PI, PI-PDA@PSF@TO coating exhibits a noteworthy decrease of 42.7 % in wear rate. Even after thermal oxidation, there is a noticeable reduction in the friction coefficient from 0.501 to 0.377, accompanied by a decrease in the wear rate from 6.33 × 10<sup>−7</sup> mm<sup>3</sup>N<sup>−1</sup> m<sup>−1</sup> to 3.31 × 10<sup>−7</sup> mm<sup>3</sup>N<sup>−1</sup> m<sup>−1</sup>. This improvement contributes to two factors: (I) The PDA@PSF@TO microcapsules, developed by PSF and PDA, achieves the stable storage of TO in PI. (II) The release of TO forms protective layers, which compensate for defects and provide excellent tribological properties, thereby demonstrating the self-lubrication and self-healing characteristics.</p></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":null,"pages":null},"PeriodicalIF":6.5000,"publicationDate":"2024-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"PI-PDA@PSF@TO composite coating toward multifunctional development: Self-lubrication, self-healing, and heat-resistance\",\"authors\":\"\",\"doi\":\"10.1016/j.porgcoat.2024.108723\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>To facilitate versatile application of polyimide (PI) under harsh conditions, the PI-PDA@PSF@TO coating was successfully developed. The results illustrate the successful formation of PSF@TO microcapsules by encapsulating tung oil (TO) into polysulfone (PSF). After the modification of polydopamine (PDA), PDA@PSF@TO microcapsules exhibit superior dispersion within the coating compared to PSF@TO, resulting in a 16.8 % increase in tensile strength. Moreover, upon coating damage, the released TO can shield the samples in salt environment for a duration of 8 days. In comparison to PI, PI-PDA@PSF@TO coating exhibits a noteworthy decrease of 42.7 % in wear rate. Even after thermal oxidation, there is a noticeable reduction in the friction coefficient from 0.501 to 0.377, accompanied by a decrease in the wear rate from 6.33 × 10<sup>−7</sup> mm<sup>3</sup>N<sup>−1</sup> m<sup>−1</sup> to 3.31 × 10<sup>−7</sup> mm<sup>3</sup>N<sup>−1</sup> m<sup>−1</sup>. This improvement contributes to two factors: (I) The PDA@PSF@TO microcapsules, developed by PSF and PDA, achieves the stable storage of TO in PI. (II) The release of TO forms protective layers, which compensate for defects and provide excellent tribological properties, thereby demonstrating the self-lubrication and self-healing characteristics.</p></div>\",\"PeriodicalId\":20834,\"journal\":{\"name\":\"Progress in Organic Coatings\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.5000,\"publicationDate\":\"2024-08-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Progress in Organic Coatings\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0300944024005150\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, APPLIED\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Organic Coatings","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0300944024005150","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
摘要
为促进聚酰亚胺(PI)在苛刻条件下的多功能应用,成功开发了 PI-PDA@PSF@TO 涂层。研究结果表明,通过将桐油(TO)封装到聚砜(PSF)中,成功地形成了 PSF@TO 微胶囊。在对聚多巴胺(PDA)进行改性后,PDA@PSF@TO 微胶囊在涂层内的分散性比 PSF@TO 更好,从而使拉伸强度提高了 16.8%。此外,当涂层损坏时,释放出的 TO 可以在盐环境中保护样品达 8 天之久。与 PI 相比,PI-PDA@PSF@TO 涂层的磨损率显著降低了 42.7%。即使在热氧化之后,摩擦系数也明显从 0.501 降至 0.377,同时磨损率从 6.33 × 10 mmN m 降至 3.31 × 10 mmN m:(I) PSF 和 PDA 开发的 PDA@PSF@TO 微胶囊实现了 TO 在 PI 中的稳定储存。(II) TO 的释放形成了保护层,可补偿缺陷并提供优异的摩擦学特性,从而显示出自润滑性和自修复特性。
PI-PDA@PSF@TO composite coating toward multifunctional development: Self-lubrication, self-healing, and heat-resistance
To facilitate versatile application of polyimide (PI) under harsh conditions, the PI-PDA@PSF@TO coating was successfully developed. The results illustrate the successful formation of PSF@TO microcapsules by encapsulating tung oil (TO) into polysulfone (PSF). After the modification of polydopamine (PDA), PDA@PSF@TO microcapsules exhibit superior dispersion within the coating compared to PSF@TO, resulting in a 16.8 % increase in tensile strength. Moreover, upon coating damage, the released TO can shield the samples in salt environment for a duration of 8 days. In comparison to PI, PI-PDA@PSF@TO coating exhibits a noteworthy decrease of 42.7 % in wear rate. Even after thermal oxidation, there is a noticeable reduction in the friction coefficient from 0.501 to 0.377, accompanied by a decrease in the wear rate from 6.33 × 10−7 mm3N−1 m−1 to 3.31 × 10−7 mm3N−1 m−1. This improvement contributes to two factors: (I) The PDA@PSF@TO microcapsules, developed by PSF and PDA, achieves the stable storage of TO in PI. (II) The release of TO forms protective layers, which compensate for defects and provide excellent tribological properties, thereby demonstrating the self-lubrication and self-healing characteristics.
期刊介绍:
The aim of this international journal is to analyse and publicise the progress and current state of knowledge in the field of organic coatings and related materials. The Editors and the Editorial Board members will solicit both review and research papers from academic and industrial scientists who are actively engaged in research and development or, in the case of review papers, have extensive experience in the subject to be reviewed. Unsolicited manuscripts will be accepted if they meet the journal''s requirements. The journal publishes papers dealing with such subjects as:
• Chemical, physical and technological properties of organic coatings and related materials
• Problems and methods of preparation, manufacture and application of these materials
• Performance, testing and analysis.