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首页> 外文期刊>Journal of Applied Polymer Science >Mastic of polymer-modified bitumen and poly(vinyl chloride) wastes
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Mastic of polymer-modified bitumen and poly(vinyl chloride) wastes

机译：聚合物改性沥青和聚氯乙烯废物的乳胶

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Micronized poly(vinyl chloride) (PVC) pipe waste has been employed as a soft filler in making bituminous products. The binder used in this study consists of styrene-butadiene-styrene-modified bitumen, isocyanate production waste, and an antioxiclant. The time-dependent properties of these binders were assessed by constructing a master curve using frequency multiplexing. A plateau at intermediate and low frequencies in the storage modulus curves of modified bitumen implies the existence of molecular association among the constituents compared to neat bitumen. The enhanced adhesion between the PVC particles activated by H2O2 and the bitumen was verified in terms of bitumen anchorage onto particles after washing in hot toluene. Confirmation of these effects can also be seen by increased stiffness of the bituminous mix with the activated particles over that with nonactivated particles. Consequently, a suitable mastic composition consisting of these activated coarse and micronized particles, limestone dust, and polymeric bituminous binder has been achieved. The results indicate that the optimized mix can be used as waterproof roof mastic as an alternative to conventional bituminous mastic. (C) 2003 Wiley Periodicals, Inc. [References: 23]
机译：微粉化的聚氯乙烯（PVC）管废料已被用作制造沥青产品的软填料。本研究中使用的粘合剂包括苯乙烯-丁二烯-苯乙烯改性的沥青，异氰酸酯生产废料和抗氧剂。这些粘合剂的时变特性通过使用频率复用构建主曲线来评估。改性沥青的储能模量曲线在中低频处处于平稳状态，这表明与纯沥青相比，各组分之间存在分子缔合。在热甲苯中洗涤后，通过将沥青固定在颗粒上，证实了H2O2活化的PVC颗粒与沥青之间增强的粘附力。这些作用的确认还可以通过与活化颗粒相比与未活化颗粒相比增加的沥青混合物的刚度来看到。因此，已经获得了由这些活化的粗糙和微粉化的颗粒，石灰石粉尘和聚合物沥青粘合剂组成的合适的胶泥组合物。结果表明，经优化的混合料可作为防水沥青胶泥替代常规沥青胶泥。 （C）2003 Wiley Periodicals，Inc. [参考：23]

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