苯并三氮唑化合物的光老化性能研究

Study on Photoaging Property of Benzotriazole Derivatives

主要研究石油沥青路面的抗紫外性能,在石油沥青中加入不同质量分数苯并三氮唑化合物(BTA)抗紫外光老化剂进行改性。根据全年时段内江西省的紫外线的辐射量设计室内紫外线老化箱,将改性石油沥青进行模拟光老化,测试其低温抗开裂性、高温延展性以及抗剪切性,进而探究其在实际路面混合料的稳定性。

This paper mainly investigated the ultraviolet resistance of the petroleum asphalt and modified asphalt that added several different mass fractions of benzotriazole. The design of indoor ultraviolet radiation aging box was carried out according to the amount of ultraviolet radiation in Jiangxi Province during the whole year. The modified petroleum asphalt was simulated by photoaging, and the low temperature crack resistance,high temperature ductility and shear resistance were tested. Furthermore,the stability of the mixture in the actual road surface was studied.