Study on Improvement of UV Aging Resistance of Thermoplastic Polyurethane After Oil Treatment
AN Shaodu1,2, SHAO Weiguang1, FAN Guiqi1, LI Wanli1, WANG Jianchao1, YANG Jianxiong1, CAI Lihai1,*
1 Institute of Systems Engineering, Academy of Military Sciences of the People’s Liberation Army, Beijing 100071, China 2 China Academy of Building Research Co., Ltd., Beijing 100013, China
Abstract: Improving the UV aging resistance of thermoplastic polyurethane elastomer (TPU) adhesive layer after oil extraction is of great significance for outdoor application of soft oil storage and transportation equipment. In this work, the inorganic anti UV aging additive rutile nano titanium dioxide (TiO2) and polymer hindered amine light stabilizer 622 (HALS-622) were used as additives to blend with TPU to prepare films. After oil extraction, the films were subjected to UV aging for 300 h. Through UV visible spectrum, qualitative and quantitative analysis of infrared spectrum, mechanical properties and color difference analysis and testing, the results show that HALS-622 would be partially extracted and dissolved under the action of oil, which affected the oil resistance and UV aging resistance of TPU. TPU/TiO2 samples have smaller color difference changes and more stable mechanical properties after UV aging. This study refined the application of TPU in petrochemical industry, and provided an experimental basis for the improvement of oil extraction and UV aging resistance of TPU.
安绍都, 邵伟光, 樊桂琪, 李万利, 王建超, 杨建雄, 蔡利海. 热塑性聚氨酯耐油抗紫外老化性能改进研究[J]. 材料导报, 2024, 38(10): 23020156-5.
AN Shaodu, SHAO Weiguang, FAN Guiqi, LI Wanli, WANG Jianchao, YANG Jianxiong, CAI Lihai. Study on Improvement of UV Aging Resistance of Thermoplastic Polyurethane After Oil Treatment. Materials Reports, 2024, 38(10): 23020156-5.
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2024, Vol. 38 
