文章摘要
磷酸锆与磷酸三苯酯复配阻燃聚碳酸酯/丙烯腈-丁二烯-苯乙烯合金
Compounding Flame Retardancy of Triphenyl Phosphate and Alpha Zirconium Phosphate for Polycarbonate/Acrylonitrile-Butadiene-Styrene Blends
  
DOI:10.16865/j.cnki.1000-7555.2017.11.017
中文关键词: 聚碳酸酯/丙烯腈-丁二烯-苯乙烯合金  磷酸三苯酯  α-磷酸锆  热稳定性  无卤阻燃
英文关键词: polycarbonate/acrylonitrile-butadiene-styrene blend  triphenyl phosphate  alpha zirconium phosphate  thermal stability  non-halogen flame retardant
基金项目:浙江省自然科学基金资助项目(LY15E03000008)
作者单位
郭正虹, 邵佳丽, 方征平 浙江大学宁波理工学院 高分子材料与工程研究所浙江 宁波 315100 
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中文摘要:
      聚碳酸酯/丙烯腈-丁二烯-苯乙烯(PC/ABS)合金兼有PC和ABS的优点,但ABS的加入使PC/ABS合金阻燃性能降低,很多场合都需要对其进行阻燃改性。在环境保护越来越受重视的今天,芳基磷酸酯是卤系阻燃剂的良好替代品,并已在PC/ABS无卤阻燃领域获得广泛应用。文中结合市场及环保的要求,采用芳基磷酸酯(TPP)与磷酸锆(α-ZrP)复配阻燃PC/ABS合金,研究其阻燃性能及热稳定性。热失重分析发现,在氮气氛围中,TPP与α-ZrP复配阻燃PC/ABS合金的热稳定性提高,尤其是高温段的热稳定性;在垂直燃烧和极限氧指数测试中,TPP与α-Zr~复配阻燃并没出现良好的协同效果;而在锥形量热测试中,TPP与α-ZrP复配阻燃能够延长PC/ABS合金到达最高峰值速率的时间,并减缓燃烧过程延长燃烧时间。
英文摘要:
      Polycarbonate/acrylonitrile-butadiene-styrene (PC/ABS) blend is an important industrial plastic alloy due to its overwhelming advantages. However, the addition of ABS causes deterioration of flame retardancy for PC/ABS blend, therefore, it’s significant to improve flammability of PC/ABS blends. For the demand of environmental protection, aryl phosphate ester is an effective substitute for halogen flame retardant. In this research, aromatic phosphate ester (TPP) and alpha zirconium phosphate (α-ZrP) were used as flame retardant for PC/ABS blends, and their thermal properties and flame retardancy were studied. Thermogravimetic (TG) analysis in nitrogen atmosphere indicate that TPP and α-ZrP could markedly enhance the thermal stability, especially at high temperature. TPP and α-ZrP do not show great synergistic effect in vertical burning (UL 94) and limited oxygen index (LOI) tests. However, the cone calorimetry results indicate that TPP and α-ZrP not only enhance the flame retardancy of PC/ABS, but extend the burning time and slow down the process of combustion.
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