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分别采用滑石粉、粉煤灰作为填料,制备了LDHs(层状双羟基复合金属氢氧化物)/SBS改性沥青涂盖料,研究了填料对LDHs/SBS改性沥青涂盖料物理性能和老化性能的影响。结果表明:以滑石粉为填料的LDHs/SBS改性沥青涂盖料具有更高的软化点,表现出较好的耐热性;而以粉煤灰为填料的LDHs/SBS改性沥青涂盖料具有更好的低温柔性,且经过紫外老化和热氧老化后,其软化点增量和低温柔度降低量均小于以滑石粉为填料的LDHs/SBS改性沥青涂盖料,表现出更好的耐低温性能和耐紫外光、热氧老化性能。
LDHs (layered double hydroxy compound metal hydroxide) / SBS modified asphalt coating were prepared by using talc and fly ash as filler, respectively. The effects of filler on physical properties of LDHs / SBS modified asphalt coating and Effect of aging properties. The results show that LDHs / SBS modified asphalt coating with talc as filler has a higher softening point, showing better heat resistance; and fly ash as a filler of LDHs / SBS modified asphalt coating The material has better low temperature flexibility, and after UV aging and thermal aging, the softening point increment and the low temperature flexibility decrease are less than the LDHs / SBS modified asphalt coating with talcum powder, showing more Good low temperature resistance and UV resistance, thermal aging properties.