Development of Electromagnetic Wave Absorber Pavement Material Basedon Synthetic Resin with Advanced Nanocarbon Materials as Filler

本研究的目的是制备含碳纳米管的复合材料，并阐明碳纳米管分散合成树脂复合材料的特性。在本研究中，使用几种类型的沥青乳液作为粘结剂来制备这种复合材料。结果表明，与所制备的碳纳米管复合后，非离子和阴离子乳液均保持分散状态。然而，阳离子乳液不能保持分散状态。通过几次系统的实验发现，用酸性溶液处理碳纳米管，然后逐步加入经过处理的碳纳米管，阳离子乳液成功地保持了足够的分散状态。当碳材料的质量分数相同时，三种碳纳米管-沥青复合材料的针入度和吸波性能均优于含碳黑粉的沥青复合材料。

The purpose of this study is to prepare composite materials containing CNTs and to elucidate the characteristic properties of CNTs-dispersed synthetic resin composites. In the present study, such composites were prepared using several types of asphalt emulsions as a binder. As a result, both nonionic and anionic emulsions kept dispersed state, when combined with as-prepared CNTs. However, cationic emulsions failed to keep dispersed state. After several additional systematic experiments, it was found that cationic emulsion successfully retained an adequate dispersion state, when as-prepared CNTs were treated with acid solution and the following incremental addition of the pretreated CNTs. The three types of CNTs-asphalt composites demonstrated higher performances in both penetration and microwave-absorption tests than asphalt composites including carbon black powder instead of CNTs, when the mass percentage of all carbon materials was the same.