{"title":"不同 IFS（MWCNTs、BN 和 ZnO）对 PA6/二异丁基膦酸铝复合材料阻燃性能、热性能和机械性能的影响","authors":"Songjiang Xu, Yushu Xiang, Xuanying Huan, Qiu Xu, Shikai Ma, Dongmei Bao, Shuhao Qin, Daohai Zhang, Haijun Du","doi":"10.1002/vnl.22141","DOIUrl":null,"url":null,"abstract":"<div>\n \n \n <section>\n \n <p>In this paper, the effects of the synergistic flame retardation of aluminum diisobutyl phosphinate acid (APBA) with three inorganic fillers of different dimensions (multi-walled carbon nanotubes [MWCNTs] [1-dimensional], hexagonal boron nitride [BN] [2-dimensional], and zinc oxide [ZnO] [3-dimensional]), respectively, on the properties of nylon 6 (polyamide 6 [PA6]) materials were investigated. It was shown that under the same additive amount, with the increase of spatial dimension of inorganic fillers, the thermal stability and residual carbon capacity were improved. Which would catalyze the formation of more and denser carbon layers in the matrix material, effectively blocked the transfer of oxygen and heat, enhanced the cohesive-phase flame retardancy of synergistic flame-retardant PA6 composites, and exerted a better synergistic flame-retardant effect with APBA. So that the flame-retardant properties of PA6 composites were gradually improved, and the mechanical properties were also gradually increased. The comprehensive performance of three types of inorganic fillers gradually improves in the order of MWCNTs < BN < ZnO. When the addition amount of ZnO was 2 wt%, the vertical combustion grade (UL-94) of PA6 composite was V-0, and the limiting oxygen index (LOI) was as high as 36.5%. The tensile strain increased by 19.11% and impact strength increased by 20.26% compared with PA6, and PA6/APBA-Zn can be used as a flame retardant PA6 composite material with balanced overall performance.</p>\n </section>\n \n <section>\n \n <h3> Highlights</h3>\n \n <div>\n <ul>\n \n <li>Diisobutylaluminium hypophosphite and inorganic fillers have efficient synergistic flame retardant effects in PA6.</li>\n \n <li>With the increase of spatial dimension of inorganic fillers, the better the synergistic flame retardant effect in PA6.</li>\n \n <li>The flame retardant can degrade to release the phosphorous free radicals.</li>\n \n <li>Inorganic fillers can cross-link with the PA6 substrate and promote the charring.</li>\n </ul>\n </div>\n </section>\n </div>","PeriodicalId":17662,"journal":{"name":"Journal of Vinyl & Additive Technology","volume":"30 6","pages":"1584-1598"},"PeriodicalIF":3.8000,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of different IFS (MWCNTs, BN, and ZnO) on flame retardant, thermal and mechanical properties of PA6/aluminum diisobutyl phosphinate composites\",\"authors\":\"Songjiang Xu, Yushu Xiang, Xuanying Huan, Qiu Xu, Shikai Ma, Dongmei Bao, Shuhao Qin, Daohai Zhang, Haijun Du\",\"doi\":\"10.1002/vnl.22141\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div>\\n \\n \\n <section>\\n \\n <p>In this paper, the effects of the synergistic flame retardation of aluminum diisobutyl phosphinate acid (APBA) with three inorganic fillers of different dimensions (multi-walled carbon nanotubes [MWCNTs] [1-dimensional], hexagonal boron nitride [BN] [2-dimensional], and zinc oxide [ZnO] [3-dimensional]), respectively, on the properties of nylon 6 (polyamide 6 [PA6]) materials were investigated. It was shown that under the same additive amount, with the increase of spatial dimension of inorganic fillers, the thermal stability and residual carbon capacity were improved. Which would catalyze the formation of more and denser carbon layers in the matrix material, effectively blocked the transfer of oxygen and heat, enhanced the cohesive-phase flame retardancy of synergistic flame-retardant PA6 composites, and exerted a better synergistic flame-retardant effect with APBA. So that the flame-retardant properties of PA6 composites were gradually improved, and the mechanical properties were also gradually increased. The comprehensive performance of three types of inorganic fillers gradually improves in the order of MWCNTs < BN < ZnO. When the addition amount of ZnO was 2 wt%, the vertical combustion grade (UL-94) of PA6 composite was V-0, and the limiting oxygen index (LOI) was as high as 36.5%. The tensile strain increased by 19.11% and impact strength increased by 20.26% compared with PA6, and PA6/APBA-Zn can be used as a flame retardant PA6 composite material with balanced overall performance.</p>\\n </section>\\n \\n <section>\\n \\n <h3> Highlights</h3>\\n \\n <div>\\n <ul>\\n \\n <li>Diisobutylaluminium hypophosphite and inorganic fillers have efficient synergistic flame retardant effects in PA6.</li>\\n \\n <li>With the increase of spatial dimension of inorganic fillers, the better the synergistic flame retardant effect in PA6.</li>\\n \\n <li>The flame retardant can degrade to release the phosphorous free radicals.</li>\\n \\n <li>Inorganic fillers can cross-link with the PA6 substrate and promote the charring.</li>\\n </ul>\\n </div>\\n </section>\\n </div>\",\"PeriodicalId\":17662,\"journal\":{\"name\":\"Journal of Vinyl & Additive Technology\",\"volume\":\"30 6\",\"pages\":\"1584-1598\"},\"PeriodicalIF\":3.8000,\"publicationDate\":\"2024-08-27\",\"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.22141\",\"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.22141","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}
Effect of different IFS (MWCNTs, BN, and ZnO) on flame retardant, thermal and mechanical properties of PA6/aluminum diisobutyl phosphinate composites
In this paper, the effects of the synergistic flame retardation of aluminum diisobutyl phosphinate acid (APBA) with three inorganic fillers of different dimensions (multi-walled carbon nanotubes [MWCNTs] [1-dimensional], hexagonal boron nitride [BN] [2-dimensional], and zinc oxide [ZnO] [3-dimensional]), respectively, on the properties of nylon 6 (polyamide 6 [PA6]) materials were investigated. It was shown that under the same additive amount, with the increase of spatial dimension of inorganic fillers, the thermal stability and residual carbon capacity were improved. Which would catalyze the formation of more and denser carbon layers in the matrix material, effectively blocked the transfer of oxygen and heat, enhanced the cohesive-phase flame retardancy of synergistic flame-retardant PA6 composites, and exerted a better synergistic flame-retardant effect with APBA. So that the flame-retardant properties of PA6 composites were gradually improved, and the mechanical properties were also gradually increased. The comprehensive performance of three types of inorganic fillers gradually improves in the order of MWCNTs < BN < ZnO. When the addition amount of ZnO was 2 wt%, the vertical combustion grade (UL-94) of PA6 composite was V-0, and the limiting oxygen index (LOI) was as high as 36.5%. The tensile strain increased by 19.11% and impact strength increased by 20.26% compared with PA6, and PA6/APBA-Zn can be used as a flame retardant PA6 composite material with balanced overall performance.
Highlights
Diisobutylaluminium hypophosphite and inorganic fillers have efficient synergistic flame retardant effects in PA6.
With the increase of spatial dimension of inorganic fillers, the better the synergistic flame retardant effect in PA6.
The flame retardant can degrade to release the phosphorous free radicals.
Inorganic fillers can cross-link with the PA6 substrate and promote the charring.
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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