大剂量紫外光辐照下改性PE–HD浮体材料的老化性能

Ageing Properties of Modified PE–HD for High Dose UV Radiation in Floating Materials

根据历年来的气象观测数据,分析了作为国家光伏领跑者基地的山东、江苏、安徽等区域的紫外光辐射量,以此评估经过25年户外应用的高密度聚乙烯(PE–HD)浮体材料需要承受的紫外辐射总量;开发了一种能抗大剂量紫外辐射的改性PE–HD浮体材料,通过人工加速老化试验研究了其大剂量紫外辐射后的关键性能变化;并对比市场上的部分浮体材料,指出了针对PE–HD改性设立相关标准的必要性。

Based on the scattered records of the energies of sunlight over years, the total amount of UV radiation over 25 years in Shandong,Jiangsu and Anhui for the evaluation of the performance of floating materials was estimated. A modified high-density polyethylene （PE–HD） material with a potentially good capability against the UV radiation was developed. Some important properties of such materials after a high dose of exposure are examined by the artificially accelerated ageing test. It is suggested by the comparison of floating materials available in the market that establishing standards for regulating the development of new floating materials is very necessary.