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阻燃SBS改性沥青的制备及性能

, PP. 35-39

Keywords: 道路工程,阻燃SBS改性沥青,试验研究,阻燃机理,氧指数,车辙因子

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Abstract:

?研究了SBS对沥青的燃烧性能及复合阻燃剂对SBS改性沥青的阻燃性能与物理性能的影响,并通过动态剪切流变仪和DSC-TG试验对阻燃SBS改性沥青的流变性能和阻燃机理进行了分析。试验结果表明:SBS的加入使基质沥青的氧指数降低;复合阻燃剂可显著提高SBS改性沥青的阻燃性能,并可提高改性沥青的车辙因子和热储存稳定性;当添加的阻燃剂与基质沥青的质量比为10%时,改性沥青可成为自熄性材料,并具有较好的物理性能;复合阻燃剂的加入可提高改性沥青的热分解温度和开始燃烧温度。

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