中国塑料 ›› 2016, Vol. 30 ›› Issue (02): 83-87 .DOI: 10.19491/j.issn.1001-9278.2016.02.017

• 助剂 • 上一篇    下一篇

聚甲基亚膦酸双酚A酯阻燃剂的合成及其应用

王小萌1,彭攀瑞1,胡权1,刘学清1,刘继延2   

  1. 1. 江汉大学化学与环境工程学院2. 江汉大学
  • 收稿日期:2015-09-17 修回日期:2016-01-18 出版日期:2016-02-26 发布日期:2016-02-26

Synthesis and Application of Poly(methylphosphite bisphenol A ester) Oligomer Flame Retardant

  • Received:2015-09-17 Revised:2016-01-18 Online:2016-02-26 Published:2016-02-26

摘要: 以甲基二氯膦和双酚A为单体,通过熔融缩聚合成了聚甲基亚膦酸双酚A酯(PMPBE)。通过傅里叶变换红外光谱(FTIR)、核磁共振谱仪、热失重分析仪(TGA)、差示扫描量热仪(DSC)、垂直燃烧仪、极限氧指数仪及微型量热仪表征了PMPBE及环氧树脂(EP)/PMPBE共混物的结构和性能。结果表明,随着PMPBE添加量的增加,复合材料的极限氧指数逐渐提高,最大放热速率和放热量逐渐降低,EP在700 ℃的残炭率明显提高。当添加20份PMPBE时,EP的极限氧指数从19.0 %提高到27.6 %,达到V-0级,最大放热速率与放热量均下降了27 %;说明该阻燃剂是良好的本征型阻燃剂。

关键词: 聚膦酸酯, 熔融缩聚, 阻燃, 环氧树脂

Abstract: Poly(methylphosphitebisphenol A ester) oligomer(PMPBE) was obtained by melt condensation polymerization of methylphosphonous dichloride and bisphenol A. The structure of PMPBE and the properties of epoxy resin(EP)/PMPBE blends were characterized with Fourier transformed infrared spectrum(FTIR), nuclear magnetic resonance spectroscope, thermogravimetric analyzer(TGA), differential scanning calorimeter(DSC), vertical burning tester,limited oxygen index tester, and micro-scale combustion calorimetry. Adding 20 phr of PMPBE, the limiting oxygen index of EP was increased from 19 % to 27.6 % and the sample passed the UL94 V-0 rating, the heat release capacity and heat release rate reduced by about 27 %.TGA results showed that the char yield at 700 ℃ increased obviously compared with the neat EP. Moreover, PMPBE had little influence on the mechanical properties of EP.

Key words: Polyphosphonate, melt condensation polymerization, flame retardant, epoxy resin