Hyperbranched flame retardant to simultaneously improve the fire-safety, toughness and glass transition temperature of epoxy resin
文献类型：期刊论文
| 作者 | Teng, Na; Dai, Jinyue; Wang, Shuaipeng; Liu, Xiaoling; Hu, Jingyuan; Yi, Xiaosu; Liu, Xiaoqing |
| 刊名 | EUROPEAN POLYMER JOURNAL
 |
| 出版日期 | 2021 |
| 卷号 | 157 |
| 关键词 | FUNCTIONALIZED GRAPHENE OXIDE PHASE-BEHAVIOR PHOSPHORUS BLENDS FACILE PHOSPHATE MODIFIER AGENT |
| 英文摘要 | It is highly desired yet very challenging to overcome the flammability and brittleness of epoxy resin without compromising its glass transition temperature (T-g). Herein, an epoxy-terminated hyperbranched flame retardant (EHBFR) was designed and synthesized from 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO), and renewable protocatechualdehyde as well as guaiacol. When the synthesized EHBFR was taken to modify diglycidyl ether of bisphenol A (DGEBA), it is found that the incorporation of EHBFR remarkably improved its fire safety, endowing it with a UL-94 V-0 rating and a limiting oxygen index (LOI) of 33.0 vol%. Meanwhile, the notched impact strength of modified DGEBA at 25 and -196 degrees C (quenched by liquid nitrogen) exhibited significant increment by 135% (from 3.39 to 7.97 KJ/m(2)) and 114% (from 2.34 to 5.01 KJ/m(2)), respectively. Moreover, the T-g of modified epoxy resin did not show any decrease, and even increased from 172 to 194 degrees C when the content of EHBFR was 10 wt%, due to the synergistic effect of rigid DOPO-containing groups and high crosslink density. This work offers an efficient strategy for constructing high-performance epoxy thermosets with excellent flame retardancy, superior toughness and strength, as well as elevated T-g. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21651]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | Liu, XQ (corresponding author), Zhejiang Key Lab Marine Mat & Protect Technol, Ningbo 315201, Zhejiang, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Teng, Na,Dai, Jinyue,Wang, Shuaipeng,et al. Hyperbranched flame retardant to simultaneously improve the fire-safety, toughness and glass transition temperature of epoxy resin[J]. EUROPEAN POLYMER JOURNAL,2021,157. |
| APA | Teng, Na.,Dai, Jinyue.,Wang, Shuaipeng.,Liu, Xiaoling.,Hu, Jingyuan.,...&Liu, Xiaoqing.(2021).Hyperbranched flame retardant to simultaneously improve the fire-safety, toughness and glass transition temperature of epoxy resin.EUROPEAN POLYMER JOURNAL,157. |
| MLA | Teng, Na,et al."Hyperbranched flame retardant to simultaneously improve the fire-safety, toughness and glass transition temperature of epoxy resin".EUROPEAN POLYMER JOURNAL 157(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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