{"title":"用新型超支化氨基聚硅氧烷同时增强环氧树脂涂料的耐腐蚀性和耐磨性","authors":"","doi":"10.1016/j.porgcoat.2024.108680","DOIUrl":null,"url":null,"abstract":"<div><p>Hyperbranched and linear amino-polysiloxanes with different functional groups were synthesized from trifunctional, difunctional and amino siloxanes and characterized. The amino-polysiloxanes as curing agents were used for hydrogenated diglycidyl ether of bisphenol A coatings. The effects of amino-polysiloxanes with different functional groups and different branching degrees on the surface properties, mechanical properties, corrosion resistance and thermal properties of the epoxy resin coatings were investigated. The epoxy coatings with hyperbranched amino-polysiloxanes exhibit better reactivity, higher hardness, better wear and corrosion resistance, and higher thermal properties as compared to that with the linear amino-polysiloxane. The coatings with the hyperbranching polysiloxanes can maintain lowest-frequency impedance (|Z|<sub>f=0.01Hz</sub>) above 10<sup>8</sup> Ω·cm<sup>2</sup> after 30 days of the corrosion test, while coating with the linear polysiloxane only 10<sup>7</sup> Ω·cm<sup>2</sup>. Moreover, due to the introduction of trifluoropropyl, the fluorinated hyperbranched polysiloxane/epoxy resin coating (HBPSi-2Ph2F/EP coating) has the highest |Z|<sub>f=0.01Hz</sub>, up to 4.26 × 10<sup>9</sup> Ω·cm<sup>2</sup>. The hyperbranched amino-polysiloxanes as curing agents for epoxy resins would be expected to find wide applications in high performance coatings.</p></div>","PeriodicalId":20834,"journal":{"name":"Progress in Organic Coatings","volume":null,"pages":null},"PeriodicalIF":6.5000,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Enhancing corrosion and abrasion resistances simultaneously of epoxy resin coatings by novel hyperbranched amino-polysiloxanes\",\"authors\":\"\",\"doi\":\"10.1016/j.porgcoat.2024.108680\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Hyperbranched and linear amino-polysiloxanes with different functional groups were synthesized from trifunctional, difunctional and amino siloxanes and characterized. The amino-polysiloxanes as curing agents were used for hydrogenated diglycidyl ether of bisphenol A coatings. The effects of amino-polysiloxanes with different functional groups and different branching degrees on the surface properties, mechanical properties, corrosion resistance and thermal properties of the epoxy resin coatings were investigated. The epoxy coatings with hyperbranched amino-polysiloxanes exhibit better reactivity, higher hardness, better wear and corrosion resistance, and higher thermal properties as compared to that with the linear amino-polysiloxane. The coatings with the hyperbranching polysiloxanes can maintain lowest-frequency impedance (|Z|<sub>f=0.01Hz</sub>) above 10<sup>8</sup> Ω·cm<sup>2</sup> after 30 days of the corrosion test, while coating with the linear polysiloxane only 10<sup>7</sup> Ω·cm<sup>2</sup>. Moreover, due to the introduction of trifluoropropyl, the fluorinated hyperbranched polysiloxane/epoxy resin coating (HBPSi-2Ph2F/EP coating) has the highest |Z|<sub>f=0.01Hz</sub>, up to 4.26 × 10<sup>9</sup> Ω·cm<sup>2</sup>. The hyperbranched amino-polysiloxanes as curing agents for epoxy resins would be expected to find wide applications in high performance coatings.</p></div>\",\"PeriodicalId\":20834,\"journal\":{\"name\":\"Progress in Organic Coatings\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.5000,\"publicationDate\":\"2024-07-26\",\"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/S0300944024004727\",\"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/S0300944024004727","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}
Enhancing corrosion and abrasion resistances simultaneously of epoxy resin coatings by novel hyperbranched amino-polysiloxanes
Hyperbranched and linear amino-polysiloxanes with different functional groups were synthesized from trifunctional, difunctional and amino siloxanes and characterized. The amino-polysiloxanes as curing agents were used for hydrogenated diglycidyl ether of bisphenol A coatings. The effects of amino-polysiloxanes with different functional groups and different branching degrees on the surface properties, mechanical properties, corrosion resistance and thermal properties of the epoxy resin coatings were investigated. The epoxy coatings with hyperbranched amino-polysiloxanes exhibit better reactivity, higher hardness, better wear and corrosion resistance, and higher thermal properties as compared to that with the linear amino-polysiloxane. The coatings with the hyperbranching polysiloxanes can maintain lowest-frequency impedance (|Z|f=0.01Hz) above 108 Ω·cm2 after 30 days of the corrosion test, while coating with the linear polysiloxane only 107 Ω·cm2. Moreover, due to the introduction of trifluoropropyl, the fluorinated hyperbranched polysiloxane/epoxy resin coating (HBPSi-2Ph2F/EP coating) has the highest |Z|f=0.01Hz, up to 4.26 × 109 Ω·cm2. The hyperbranched amino-polysiloxanes as curing agents for epoxy resins would be expected to find wide applications in high performance coatings.
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.
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