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材料导报  2026, Vol. 40 Issue (8): 25040078-7    https://doi.org/10.11896/cldb.25040078
  高分子与聚合物基复合材料 |
含磷低分子量聚苯醚的制备及在环氧树脂阻燃中的应用
张家傅1, 单雪影1,*, 黄其鑫1, 刁玉璇1, 李锦春2
1 常州大学安全科学与工程学院,江苏 常州 213164
2 常州大学材料科学与工程学院,江苏 常州 213164
Synthesis of Phosphorus-containing Low-molecular-weight Polyphenylene Ether and Flame-retardant Application in Epoxy Resins
ZHANG Jiafu1, SHAN Xueying1,*, HUANG Qixin1, DIAO Yuxuan1, LI Jinchun2
1 School of Safety Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
2 School of Materials Science and Engineering, Changzhou University, Changzhou 213164, Jiangsu, China
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摘要 利用不同配比的苯基磷酰二氯、低分子量聚苯醚为原料,制备一系列新型含磷聚苯醚(MPPO),并通过溶液共混法对环氧树脂(EP)进行改性。研究不同磷含量的MPPO对EP复合材料性能的影响,并探究了其阻燃机理。结果表明,MPPO含量为15%(质量分数)的EP/MPPO4的介电常数(2 MHz)从纯EP的2.77降低到1.48;同时800 ℃下的残炭率提高至21.8%;材料的垂直燃烧(UL-94)等级达到了V-0级,极限氧指数达31.3%。MPPO4的加入显著降低EP的热释放速率及烟气释放速率,有效提高了EP的火灾安全性;与此同时材料自身优良的力学性能得到保持。阻燃机理上EP/MPPO4呈现出气相和凝聚相动态协同阻燃效果,抑制了有毒烟气的释放,并促进了炭层的生成。
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张家傅
单雪影
黄其鑫
刁玉璇
李锦春
关键词:  含磷低分子量聚苯醚  介电性能  热降解性能  阻燃性能  力学性能    
Abstract: A series of novel phosphorus-containing polyphenylene oxides (MPPOs) were synthesized through a controlled co-polymerization strategy using phenylphosphonic dichloride and low-molecular-weight polyphenylene oxide with varying feed ratios. These MPPOs were subsequently employed to modify epoxy resin (EP) via a solution-blending method. The effects of phosphorus content in MPPOs on the comprehensive properties of EP composites were systematically investigated, with particular emphasis on their flame-retardant mechanisms. Experimental results de-monstrated that the EP/MPPO4 composite containing 15wt% MPPO4 exhibited remarkable performance enhancements: ⅰ) The dielectric constant decreased from 2.77 (neat EP) to 1.48 at 2 MHz; ⅱ) The residual char yield at 800 ℃ significantly increased to 21.8%; ⅲ) A UL-94 V-0 rating with a limiting oxygen index of 31.3%. Notably, the incorporation of MPPO4 reduced the peak heat release rate and smoke production rate, respectively, thereby substantially improving fire safety without compromising mechanical integrity. Mechanistic studies revealed that EP/MPPO4 exhibited a synergistic gas-phase and condensed-phase flame-retardant mechanism, which effectively suppressed toxic smoke emission and promoted the formation of a thermally stable char layer. This work provides a viable strategy for developing high-performance epoxy compo-sites with balanced dielectric, flame-retardant, and mechanical properties.
Key words:  phosphorus-containing low-molecular-weight polyphenylene oxide    dielectric property    thermal degradation performance    flame retardancy    mechanical property
出版日期:  2026-04-25      发布日期:  2026-05-06
ZTFLH:  TQ32  
基金资助: 江苏省基础研究计划(自然科学基金)(BK20230642)
通讯作者:  * 单雪影,博士,副教授,主要从事材料阻燃改性;材料火灾安全评价。xyshan@cczu.edu.cn   
作者简介:  张家傅,硕士,主要研究领域为环氧树脂火安全。
引用本文:    
张家傅, 单雪影, 黄其鑫, 刁玉璇, 李锦春. 含磷低分子量聚苯醚的制备及在环氧树脂阻燃中的应用[J]. 材料导报, 2026, 40(8): 25040078-7.
ZHANG Jiafu, SHAN Xueying, HUANG Qixin, DIAO Yuxuan, LI Jinchun. Synthesis of Phosphorus-containing Low-molecular-weight Polyphenylene Ether and Flame-retardant Application in Epoxy Resins. Materials Reports, 2026, 40(8): 25040078-7.
链接本文:  
https://www.mater-rep.com/CN/10.11896/cldb.25040078  或          https://www.mater-rep.com/CN/Y2026/V40/I8/25040078
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