多层共挤膜废料对SBS改性沥青性能的影响
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福建省科技厅项目(2013H6007)


Effects of Recycled Multilayer Co extrusion Film Scraps on Properties of Styrene Butadiene Styrene(SBS) Modified Asphalt
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    摘要:

    以合新70号沥青为基质沥青、多层共挤膜废料(rMCEFS)和SBS为改性剂、POEgGMA为相容剂,通过熔融共混法制备rMCEFS/SBS复合改性沥青,并探讨rMCEFS外掺量对复合改性沥青的常规性能、流变性能和微观结构的影响.结果表明:随着rMCEFS外掺量的增加,复合改性沥青的车辙因子逐渐增加;当rMCEFS外掺量为基质沥青质量的3%时,rMCEFS/SBS复合改性沥青的针入度和软化点指标达到聚合物改性沥青SBS类(Ⅰ类)的ID级别,且体系弹性回复能力最优.

    Abstract:

    Taking the Hexin No.70 asphalt as matrix, recycled multilayer co extrusion film scraps(r MCEFS) and styrene butadiene styrene(SBS) as modifier, POE g GMA as a compatibilizer, r MCEFS/SBS modified asphalt composites were prepared by melt blending. The classical performance, rheological properties and microscopic structure of r MCEFS/SBS modified asphalt composites with different contents of r MCEFS were investigated. The results show that the rutting factor of r MCEFS/SBS modified asphalt composites increases with the increase of r MCEFS contents. With the addition of 3% of r MCEFS(by mass of asphalt matrix), r MCEFS/SBS modified asphalt composites achieve the SBS polymer modified asphalt types(type Ⅰ) I D level in the penetration and softening point index, and show the optimal elastic recovery ability.

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肖荔人,叶海华,郑赟,黄宝铨,钟韬,陈庆华.多层共挤膜废料对SBS改性沥青性能的影响[J].建筑材料学报,2016,19(6):1097-1101

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  • 收稿日期:2015-09-08
  • 最后修改日期:2015-10-15
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  • 在线发布日期: 2016-12-29
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