改性沥青温度稳定性因素的研究

采用热分析等方法测试了改性沥青在温度改变过程中微观及宏观性能指标，通过对聚合物在沥青中的使用进行研究及对测试结果的分析讨论，发现在用聚合物对沥青进行改性过程中，沥青自身性质的调整改善及改性剂对沥青分子的约束使用是改性沥青温度稳定性得到提高的两个主要原因．文中对沥青与聚合物的相互作用机理进行了分析与讨论．

FactorsInfluencing the Tem perature Stability of Modified Asphalf

The m acroscopic and m icroscopic characteristic param eters ofm odified asphaltin the process of tem perature changing are m easured by therm alanalysis m ethod. The analyses of the m easured results and the interaction of asphalt and polym er show that the adjustm ent and im provem ent of asphalt itself characteristics and the constrainteffectofpolym eron asphaltm olecule are the tw o m ain reasons thatthe tem perature stability ofasphaltis increased. The interactive m echanism is discussed in the paper.