高等学校化学学报 ›› 2018, Vol. 39 ›› Issue (12): 2789-2796.doi: 10.7503/cjcu20180339

• 高分子化学 • 上一篇    下一篇

星型绿色磷腈阻燃剂的制备及阻燃环氧树脂性能

卢林刚(), 程哲, 丘新铭, 王会娅(), 杨守生, 钱小东, 王学宝   

  1. 中国人民武装警察部队学院, 廊坊 065000
  • 收稿日期:2018-05-02 出版日期:2018-11-09 发布日期:2018-11-09
  • 作者简介:

    联系人简介: 卢林刚, 男, 博士, 教授, 主要从事有机合成及阻燃材料方面的研究. E-mail: llg@iccas.ac.cn;王会娅, 女, 副教授, 主要从事消防材料方面的研究. E-mail: wjxywanghuiya@sohu.com

  • 基金资助:
    国家自然科学基金(批准号: 21704111, 21472241)、 河北省自然科学基金(批准号: E2016507032, E2016507027)和河北省科技厅项目(批准号: 17271221, 16211248)资助.

Preparation of Green Star-topology Phosphazene Flame Retardant and Properties of Flame-retardant Epoxy Resin

LU Lingang*(), CHENG Zhe, QIU Xinming, WANG Huiya*(), YANG Shousheng, QIAN Xiaodong, WANG Xuebao   

  1. Chinese People’s Armed Police Force Academy, Langfang 065000, China
  • Received:2018-05-02 Online:2018-11-09 Published:2018-11-09
  • Contact: LU Lingang,WANG Huiya E-mail:llg@iccas.ac.cn;wjxywanghuiya@sohu.com
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos. 21704111, 21472241), the Natural Science Foundation of Hebei Province, China(Nos. E2016507032, E2016507027), the Scientific Research Projects of Hebei Provincial Science and Technology Department, China(Nos. 17271221, 16211248).

摘要:

从分子结构设计出发, 以六氯环三磷腈、 对羟基苯甲醛、 三氯氧磷及新戊二醇等为原料, 制备了一种新型阻燃剂六[4-(5,5-二甲基-1,3,2-二氧杂己内磷酰基)苯氧基]环三磷腈(HDDCPPCP), 并将其与聚磷酸铵(APP)和多壁碳纳米管(MWCNT)复配, 应用于环氧树脂(EP)中, 制备了HDDCPPCP/APP/MWCNT/EP阻燃复合材料. 利用极限氧指数(LOI)、 水平燃烧(UL-94)、 锥形量热(CONE)、 拉伸、 弯曲和冲击等方法研究该阻燃复合材料的燃烧性能、 热性能及力学性能. 实验结果表明, 保持阻燃体系总质量分数为30%, 当MWCNT质量分数为2%时, EP2(HDDCPPCP/APP/MWCNT/EP)的各项燃烧参数综合表现较好, 其LOI值达到42.8%, 热释放速率峰值(pk-HRR)、 热释放速率平均值(av-HRR)、 有效燃烧热平均值(av-EHC)及一氧化碳释放率平均值(av-CO)相对EP0分别降低92.5%, 93.0%, 65.2%和66.6%, 呈现出良好的阻燃、 抑烟和抑毒性能; EP2的拉伸强度、 断裂伸长率、 弯曲强度和弯曲模量较好, 分别为110.46 MPa, 6.24%, 1259.99 MPa, 377.72 MPa.

关键词: 环磷腈阻燃剂, 环氧树脂, 阻燃性能, 力学性能, 多壁碳纳米管

Abstract:

Based on the molecular structure design, a new type of flame retardant named six[4-(5,5-methyl-1,3,2-dioxanone endophosphoryl) phenoxy] cyclotriphosphazene(HDDCPPCP) was prepared by hexachloro-cyclotriphosphazene, p-hydroxybenzaldehyde, phosphorus oxychloride and neopentyl glycol. This new flame retardant, ammonium polyphosphate(APP) and multi walled carbon nanotubes(MWCNT) were added to epoxy resin(EP). After that, the HDDCPPCP/APP/MWCNT/EP flame-retardant composites were prepared. Limiting oxygen index(LOI), horizontal burning(UL-94), cone calorimetry(CONE), tensile, bending and impact methods were used to study the combustion, thermal and mechanical properties of the flame-retardant composites. The experimental results show that the combustion parameters of EP2(HDDCPPCP/APP/MWCNT/EP) composites perform better when the total mass of fraction of flame retardant system is 30% and the mass fraction of MWCNT is 2%. The LOI of EP2 is 42.8%, it shows good flame retardancy, smoke suppression and anti-poisoning properties. The peak heat release rate(pk-HRR), average heat release rate(av-HRR), average effective heat combustion(av-EHC), and average CO release rate(av-CO) of EP2 are respectively reduced by 92.5%, 93.0%, 65.2%, and 66.6% compared with EP0. EP2 have good tensile strength, break elongation, bending strength and bending modulus, which are respectively 110.46 MPa, 6.24%, 1259.99 MPa and 377.72 MPa.

Key words: Cyclophosphazene flame retardant, Epoxy resin, Flame retardancy, Mechanical property, Multi walled carbon nanotubes

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