| 有机磷/硼杂化小分子阻燃改性环氧树脂 |
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| 引用本文： | 纪荣彬,陈婷,彭超华,夏龙,陈国荣,罗伟昂,曾碧榕,许一婷,袁丛辉,戴李宗. 有机磷/硼杂化小分子阻燃改性环氧树脂[J]. 化工学报, 2021, 72(7): 3856-3868. DOI: 10.11949/0438-1157.20201832 |
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| 作者姓名： | 纪荣彬 陈婷 彭超华 夏龙 陈国荣 罗伟昂 曾碧榕 许一婷 袁丛辉 戴李宗 |
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| 作者单位： | 厦门大学材料学院,福建省防火阻燃材料重点实验室,福建厦门361005 |
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| 基金项目： | 国家自然科学基金项目(U1805253);厦门市科技计划项目(3502Z20183001);厦门市公共技术服务平台定向项目(YDZX20193502000004) |
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| 摘 要： | 从二苯基次膦酰氯和苯基磷酰二氯出发，分别合成了含单个苯硼酸基团和含两个苯硼酸基团的两种有机磷/硼杂化小分子（缩写为：DPC-1B和PDS-2B）。两种杂化小分子与环氧树脂有着良好的相容性并可参与环氧固化，在比较低的添加量下便有较高的机械强度和优异的阻燃性能，且保持环氧的透明度。DPC-1B和PDS-2B添加量为2%（质量）时，复合材料氧指数从25.7%分别提高到了31.8%和31.5%，热释放速率峰值分别降低了26.5%与21.8%，UL-94阻燃等级均达到了V-0级。改性环氧树脂燃烧后的残炭分析表明，炭层外部连续紧密，内部多蓬松，硼磷共同作用形成致密炭层，隔绝热质传递，从而达到阻燃效果。
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| 关 键 词： | 有机化合物 聚合物 阻燃 力学性能 透明度 |
| 收稿时间： | 2020-12-16 |
Flame retardant epoxy resin composites modified with organophosphorus and boron hybrid molecules |
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| JI Rongbin,CHEN Ting,PENG Chaohua,XIA Long,CHEN Guorong,LUO Wei'ang,ZENG Birong,XU Yiting,YUAN Conghui,DAI Lizong. Flame retardant epoxy resin composites modified with organophosphorus and boron hybrid molecules[J]. Journal of Chemical Industry and Engineering(China), 2021, 72(7): 3856-3868. DOI: 10.11949/0438-1157.20201832 |
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| Authors: | JI Rongbin CHEN Ting PENG Chaohua XIA Long CHEN Guorong LUO Wei'ang ZENG Birong XU Yiting YUAN Conghui DAI Lizong |
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| Affiliation: | Fujian Provincial Key Laboratory of Fire Retardant Materials, College of Materials, Xiamen University, Xiamen 361005, Fujian, China |
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| Abstract: | As a common polymer material, epoxy resin (EP) is flammable. Traditional EP usually loses its transparency after flame retardant incorporated. Besides, it is hard to obtain the satisfying flame-retardant efficiency with low loading amount. In this work, two kinds of flame retardant with organophosphorus/boron hybrid were successfully synthesized (abbreviated as: DPC-1B and PDS-2B) by simple reaction between diphenylphosphinyl chloride/phenylphosphoryl dichloride and 4-hydroxyphenylboric acid. After introduced 2.0%(mass) of DPC- 1B or PDS-2B, the EP composite reached V-0 rating in the UL-94 vertical burning test and the limited oxygen index (LOI) values increased from 25.7% to 31.8% and 31.5% respectively. Interestingly, the EP composite still presented excellent transparency. Furthermore, the peak heat release rate of the flame retardant EP decreased 26.5% and 21.8%. Due to the combination of boron and phosphorus, a dense carbon layer was formed, which insulated the heat and achieves the flame retardant effect. Accordingly, the two novel flame retardant demonstrate promising applications in the flame retardant of EP without sacrifice of transparency. |
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| Keywords: | organic compounds polymers flame retardant mechanical properties transparency |
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