| Bio-based layered double hydroxide nanocarrier toward fire-retardant epoxy resin with efficiently improved smoke suppression | |
Li, Zhi; Liu, Zhiqi ; Zhang, Jing; Fu, Can; Wagenknecht, Udo; Wang, De-Yi
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| 2019-10-15 | |
| 发表期刊 | CHEMICAL ENGINEERING JOURNAL
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| ISSN | 1385-8947 |
| 卷号 | 378页码:122046 |
| 摘要 | Aiming to alleviate the low-temperature sublimation of ferrocene toward efficiently smoke-suppression epoxy resin (EP), the ferrocene molecule was inserted into the nanocavity of sulfonated cyclodextrin intercalated layered double hydroxide (LDH-CD) via host-guest chemistry. Adequate characterizations verified the targeted structure with one ferrocene molecule included into one cyclodextrin cavity. The resulting LDH-CD-Ferr formed a more uniform dispersion in EP matrix than LDH-CD. The comparative experiments demonstrated that 6 wt% LDH-CD-Ferr reduced the peak smoke production rate and total smoke production of EP matrix by 43% and 42% respectively due to the effectively shifted working temperature of ferrocene. The insightful mechanism investigation unveiled the condensed-phase behavior associated with higher-quality chars from catalytic charring reaction by retained ferrocene and the dominant vapor-phase behavior involved in the promoted combustion of smoke intermediate (soot). Additionally, 6 wt% LDH-CD-Ferr imparted EP matrix with increased limiting oxygen index (LOI) and reduced peak heat release rate by 5% and 36%. EP/6LDH-CD-Ferr was able to pass V-1 in UL-94 test relative to no rating of its counterparts. Also, in comparison to the simple mixture of LDH-CD and ferrocene, LDH-CD-Ferr presented the superiority in weakening the impact of ferrocene on the thermal stability of EP. In prospective, the host-guest chemistry offered an efficient approach to industrially utilizing ferrocene. |
| DOI | 10.1016/j.cej.2019.122046 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.isl.ac.cn/handle/363002/34080 |
| 专题 | 盐湖资源综合利用工程技术中心 中国科学院青海盐湖研究所 |
| 推荐引用方式 GB/T 7714 | Li, Zhi,Liu, Zhiqi,Zhang, Jing,et al. Bio-based layered double hydroxide nanocarrier toward fire-retardant epoxy resin with efficiently improved smoke suppression[J]. CHEMICAL ENGINEERING JOURNAL,2019,378:122046. |
| APA | Li, Zhi,Liu, Zhiqi,Zhang, Jing,Fu, Can,Wagenknecht, Udo,&Wang, De-Yi.(2019).Bio-based layered double hydroxide nanocarrier toward fire-retardant epoxy resin with efficiently improved smoke suppression.CHEMICAL ENGINEERING JOURNAL,378,122046. |
| MLA | Li, Zhi,et al."Bio-based layered double hydroxide nanocarrier toward fire-retardant epoxy resin with efficiently improved smoke suppression".CHEMICAL ENGINEERING JOURNAL 378(2019):122046. |
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| Bio-based layered do（6322KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 浏览 请求全文 | |
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