高等学校化学学报 ›› 2026, Vol. 47 ›› Issue (9): 20260122.doi: 10.7503/cjcu20260122

• 高分子化学 • 上一篇    下一篇

一种阻燃型铜基金属有机框架材料的制备及在环氧树脂中的性能

万松涛1, 曹志林1, 王正洲1,2()   

  1. 1.同济大学材料科学与工程学院高分子材料系
    2.先进土木工程材料教育部重点实验室,上海 201804
  • 收稿日期:2026-03-21 出版日期:2026-09-10 发布日期:2026-05-28
  • 通讯作者: 王正洲 E-mail:zwang@tongji.edu.cn
  • 基金资助:
    国家自然科学基金(21975185)

Fabrication of a Flame-retardant Cu-based Metal Organic Framework and Its Effect on Properties of Epoxy Resin

WAN Songtao1, CAO Zhilin1, WANG Zhengzhou1,2()   

  1. 1.Department of Polymeric Materials,School of Materials Science and Engineering
    2.Key Laboratory of Advanced Civil Engineering Materials,Ministry of Education,Tongji University,Shanghai 201804,China
  • Received:2026-03-21 Online:2026-09-10 Published:2026-05-28
  • Contact: WANG Zhengzhou E-mail:zwang@tongji.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(21975185)

摘要:

采用超声辅助法与水热合成法, 利用席夫碱配体4,4'-(1,4-苯二甲亚基二次亚氨基)二苯甲酸(TBPA)制备了一种铜基金属有机框架(Cu-MOF), 再用其与9,10-二氢-9-氧杂-10-磷杂菲-10-氧化物(DOPO)反应, 制备了阻燃型Cu-MOF, 即Cu-MOF@DOPO. 通过扫描电子显微镜、 透射电子显微镜及X射线衍射等手段对其进行表征, 探讨了Cu-MOF@DOPO对环氧树脂(EP)阻燃性能、 力学性能及热性能等的影响. 研究结果表明, 与纯EP相比, 添加2%(质量分数)Cu-MOF@DOPO的EP复合材料综合性能显著提升: 极限氧指数由23.2%(纯EP)提升至29.6%, UL-94等级达到V-0级; 峰值热释放速率降低14.2%, 总热释放量降低8.1%, 且总烟释放量也有所降低. 机理分析表明, Cu-MOF@DOPO的引入可促进EP在燃烧时形成致密的炭层, 同时具有气相成分的协同阻燃作用, 显著提升了EP的阻燃性能. 此外, 与未改性Cu-MOF及阻燃改性有机配体TBPA-DOPO相比, Cu-MOF@DOPO改性EP复合材料呈现出更高的玻璃化转变温度与更优异的力学性能.

关键词: 环氧树脂, 金属-有机框架, 阻燃性能, 力学性能, 热性能

Abstract:

A copper-based metal-organic framework(Cu-MOF) with schiff base organic ligand 4,4'-[1,4-phenylenebis(methanylylidene)bis(nitrilo)]dibenzoic acid(TBPA) was first synthesized via ultrasound-assisted and hydrothermal methods. Then, a flame-retardant Cu-MOF derivative(Cu-MOF@DOPO) was prepared by reacting Cu-MOF with a reactive flame retardant 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide(DOPO). The Cu-MOF@DOPO was confirmed by multiple characterization techniques, including scanning electron microscopy(SEM), transmission electron microscopy(TEM), and X-ray diffraction(XRD). The effect of Cu-MOF@DOPO on flame retardant, mechanical and thermal properties of epoxy resin(EP) was investigated. The results indicated that EP containing 2%(mass fraction) Cu-MOF@DOPO(EP/2MD) had a limiting oxygen index(LOI) of 29.6% and achieved a UL-94 V-0 rating. Meanwhile, the peak heat release rate(pHRR) and total heat release(THR) of EP/2MD decreased by 14.2% and 8.1%, respectively, while the total smoke production(TSP) slightly deceased compared with those of pure EP. During combustion, Cu-MOF@DOPO in EP exerted its flame-retardant action both in the condensed phase and the gas phase. Compared with the EP composites filled with Cu-MOF or the flame-retardant ligand TBPA-DOPO, the EP/Cu-MOF@DOPO composites exhibited a higher glass transition temperature and enhanced mechanical properties.

Key words: Epoxy resin, Metal-organic framework, Flame retardancy, Mechanical property, Thermal property

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