中国塑料 ›› 2019, Vol. 33 ›› Issue (9): 83-88.DOI: 10.19491/j.issn.1001-9278.2019.09.015

• 助剂 • 上一篇    下一篇

高含磷阻燃剂的制备及阻燃应用研究

赵晗,魏思淼,马雯,杨木森,白怡晨,许博*   

  1. 北京工商大学材料与机械工程学院
  • 收稿日期:2019-05-28 修回日期:2019-05-21 出版日期:2019-09-26 发布日期:2019-10-25
  • 基金资助:
    北京市大学生科研行动计划资助(201910011003)

Preparation and Applications of High-Phosphorous-Containing Flame Retardant for Flame-Retardant Polyurethane

ZHAO Han, WEI Simiao, MA Wen,YANG Musen, BAI Yichen, XU Bo*   

  1. School of Material Science and Mechanical Engineering, Beijing Technology and Business University
  • Received:2019-05-28 Revised:2019-05-21 Online:2019-09-26 Published:2019-10-25

摘要: 制备了一种含亚磷酸酯和亚磷酰胺的高含磷阻燃剂(PCDB),利用红外光谱分析仪、核磁共振分析仪对其化学结构进行表征,并采用极限氧指数仪、锥形量热仪、热失重分析仪及扫描电子显微镜分析了阻燃型聚氨酯泡沫的阻燃性能、热性能和燃烧后残炭的微观形貌。结果表明,PCDB能有效降低聚氨酯泡沫的极限氧指数、热释放速率峰值和平均有效燃烧热,有良好的阻燃行为表现;同时,PCDB的加入提高了聚氨酯泡沫的成炭能力,使残炭具有更加致密的微观结构。

关键词: 聚氨酯硬泡, 阻燃,

Abstract: A type of high-phosphorous-containing flame retardant (PCDB) was synthesized, and its chemical structure was characterized with FTIR and 1H-NMR spectroscopy. The flame-retardant performance of the polyurethane foam flame-retarded with PCDB was evaluated by limiting oxygen index and cone calorimetry, and its thermal behavior was investigated by thermogravimetric analysis. Moreover, the morphology of the residual char obtained from flame retardant test was observed by SEM. The results indicated that PCDB could effectively reduce the limited oxygen index, peak heat release rate and average effective combustion heat of the flame-retardant polyurethane foam. PCDB was found to improve the carbonization ability of polyurethane foam and impart the carbon residue with a more compact microstructure.

Key words: rigid polyurethane foam, flame retardant, phosphorus

中图分类号: