| 微波活化胶粉的低温橡胶沥青及其性能研究 |
| Research on Low-Temperature Rubber Asphalt with Microwave Activated Rubber Powder and Its Properties |
| 投稿时间：2025-06-25 修订日期：2025-06-25 |
| DOI：10.12136/j.issn.1000-890X.2025.12.0928 |
| 中文关键词: 橡胶沥青 胶粉 微波活化 旋转粘度 储存稳定性 |
| 英文关键词: rubber asphalt rubber powder microwave activation rotational viscosity storage stability |
| 基金项目: |
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| 中文摘要: |
| 采用微波活化仪，通过调整活化工艺参数制备不同活化程度的胶粉，以其在165 ℃下制备低温橡胶沥青，并与185 ℃下制备的传统橡胶沥青进行对比。结果表明：胶粉经微波活化处理后可有效改善胶粉的微观结构，显著提高胶粉的活性，降低胶粉改性沥青的加工难度；当活化胶粉的门尼粘度[ML（1＋4）100 ℃]为45～75、溶解度为20%～30%时，所制备的低温橡胶沥青的综合性能最佳；低温橡胶沥青的旋转粘度、针入度和延度等与传统橡胶沥青基本持平，且储存稳定性和薄膜老化性能相当；低温橡胶沥青混合料与传统橡胶沥青混合料的性能接近，且耐水性能更好。 |
| 英文摘要: |
| Using a microwave activator，the rubber powder with different degrees of activation was prepared by adjusting the activation process parameters. It was then used to produce the low-temperature rubber asphalt at 165 ℃ ，and compared with the traditional rubber asphalt prepared at 185 ℃.The results
showed that，microwave activation treatment of the rubber powder could effectively improve its microstructure，significantly enhance its activity，and reduce the process difficulty of the rubber powder modified asphalt.When the Mooney viscosity [ML（1＋4）100 ℃] of the activated rubber powder was 45～75 and the solubility was 20%～30%，the comprehensive performance of the low-temperature rubber asphalt prepared was the best.The rotational viscosity，penetration and ductility of the low-temperature rubber asphalt were basically the same as the traditional rubber asphalt，and the storage stability and film aging performance were comparable.The performance of the low-temperature rubber asphalt mixture was similar to that of the traditional rubber asphalt mixture，and the water resistance was better. |
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