The photo-oxidation ageing process of polypropylene filaments was studied by artificialaccelerated ageing test using different intensities of UV irradiation.
以聚丙烯长丝为对象，采用不同紫外线辐射强度的人工加速老化试验对其光氧老化过程进行研究。
2
The ageing process and regularity of the asphalt coating have been studied with indoor artificialaccelerated ageing test.