{"title":"用有机磷装饰的天然埃洛石纳米管用于高阻燃环氧树脂复合材料","authors":"Li Ruan, Dechao Hu, Wenshi Ma","doi":"10.1002/vnl.22088","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>Highly flame-resistant epoxy composites have important application value in many industrial fields. Unfortunately, epoxy resins (EPs) are inherently flammable materials and exhibit great fire hazard. In this study, the commercially available 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) was chemically immobilized on the surface of natural halloysite nanotubes (HNTs) via the linkage of vinyltrimethoxysilane to obtain a novel flame-retardant VD@HNTs containing P/Si/Al elements. It was found that the flame-retardant VD@HNTs can effectively improve the thermal stability and flame resistance of epoxy composites. Typically, when 10% of VD@HNTs is added in EP, the limiting oxygen index of as-prepared VD@HNTs/EP composites reaches 30.3%, and it also successfully reaches V-0 classification in the UL-94 test. Besides, the ignition time of VD@HNTs/EP composites was enhanced from 42 s for pure EP to 60 s, and the maximum heat release rate was reduced from 1221 to 758 kW∙m<sup>−2</sup>. These great findings promise an innovative and efficient strategy for improving the fire safety of EP products and may also offer valuable insight toward fabricating various novel organic–inorganic flame retardants as well as highly flame-resistant polymer composites.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>A novel flame-retardant VD@HNTs containing P/Si/Al elements was prepared by the chemical decoration of HNTs with organophosphorous.</li>\n \n <li>The VD@HNT can effectively improve the thermal stability and flame resistance of epoxy composites.</li>\n \n <li>Synergistic flame-retardant mechanism of phosphorus-based flame retardants and natural HNTs was classified.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":null,"pages":null},"PeriodicalIF":3.8000,"publicationDate":"2024-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Natural halloysite nanotubes decorated with organophosphorous for highly flame-resistant epoxy composites\",\"authors\":\"Li Ruan, Dechao Hu, Wenshi Ma\",\"doi\":\"10.1002/vnl.22088\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <p>Highly flame-resistant epoxy composites have important application value in many industrial fields. Unfortunately, epoxy resins (EPs) are inherently flammable materials and exhibit great fire hazard. In this study, the commercially available 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) was chemically immobilized on the surface of natural halloysite nanotubes (HNTs) via the linkage of vinyltrimethoxysilane to obtain a novel flame-retardant VD@HNTs containing P/Si/Al elements. It was found that the flame-retardant VD@HNTs can effectively improve the thermal stability and flame resistance of epoxy composites. Typically, when 10% of VD@HNTs is added in EP, the limiting oxygen index of as-prepared VD@HNTs/EP composites reaches 30.3%, and it also successfully reaches V-0 classification in the UL-94 test. Besides, the ignition time of VD@HNTs/EP composites was enhanced from 42 s for pure EP to 60 s, and the maximum heat release rate was reduced from 1221 to 758 kW∙m<sup>−2</sup>. These great findings promise an innovative and efficient strategy for improving the fire safety of EP products and may also offer valuable insight toward fabricating various novel organic–inorganic flame retardants as well as highly flame-resistant polymer composites.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Highlights</h3>\\n \\n <div>\\n <ul>\\n \\n <li>A novel flame-retardant VD@HNTs containing P/Si/Al elements was prepared by the chemical decoration of HNTs with organophosphorous.</li>\\n \\n <li>The VD@HNT can effectively improve the thermal stability and flame resistance of epoxy composites.</li>\\n \\n <li>Synergistic flame-retardant mechanism of phosphorus-based flame retardants and natural HNTs was classified.</li>\\n </ul>\\n </div>\\n </section>\\n </div>\",\"PeriodicalId\":17662,\"journal\":{\"name\":\"Journal of Vinyl & Additive Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-01-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Vinyl & Additive Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22088\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"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 Vinyl & Additive Technology","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/vnl.22088","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
Natural halloysite nanotubes decorated with organophosphorous for highly flame-resistant epoxy composites
Highly flame-resistant epoxy composites have important application value in many industrial fields. Unfortunately, epoxy resins (EPs) are inherently flammable materials and exhibit great fire hazard. In this study, the commercially available 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) was chemically immobilized on the surface of natural halloysite nanotubes (HNTs) via the linkage of vinyltrimethoxysilane to obtain a novel flame-retardant VD@HNTs containing P/Si/Al elements. It was found that the flame-retardant VD@HNTs can effectively improve the thermal stability and flame resistance of epoxy composites. Typically, when 10% of VD@HNTs is added in EP, the limiting oxygen index of as-prepared VD@HNTs/EP composites reaches 30.3%, and it also successfully reaches V-0 classification in the UL-94 test. Besides, the ignition time of VD@HNTs/EP composites was enhanced from 42 s for pure EP to 60 s, and the maximum heat release rate was reduced from 1221 to 758 kW∙m−2. These great findings promise an innovative and efficient strategy for improving the fire safety of EP products and may also offer valuable insight toward fabricating various novel organic–inorganic flame retardants as well as highly flame-resistant polymer composites.
Highlights
A novel flame-retardant VD@HNTs containing P/Si/Al elements was prepared by the chemical decoration of HNTs with organophosphorous.
The VD@HNT can effectively improve the thermal stability and flame resistance of epoxy composites.
Synergistic flame-retardant mechanism of phosphorus-based flame retardants and natural HNTs was classified.
期刊介绍：
Journal of Vinyl and Additive Technology is a peer-reviewed technical publication for new work in the fields of polymer modifiers and additives, vinyl polymers and selected review papers. Over half of all papers in JVAT are based on technology of additives and modifiers for all classes of polymers: thermoset polymers and both condensation and addition thermoplastics. Papers on vinyl technology include PVC additives.
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