| 刘羽熙,刘宇艳,王长国,谭惠丰.减缓Vectran纤维光辐照降解的涂层防护研究[J].装备环境工程,2020,17(1):20-24. LIU Yu-xi,LIU Yu-yan,WANG Chang-guo,TAN Hui-feng.Coating Protection Against Photodegradation of Vectran Fibers[J].Equipment Environmental Engineering,2020,17(1):20-24. |
| 减缓Vectran纤维光辐照降解的涂层防护研究 |
| Coating Protection Against Photodegradation of Vectran Fibers |
| 投稿时间：2019-08-05 修订日期：2019-08-31 |
| DOI：10.7643/issn.1672-9242.2020.01.004 |
| 中文关键词: Vectran纤维 光辐照降解 涂层防护 |
| 英文关键词:Vectran fiber photoirradiation degradation coating protection |
| 基金项目: |
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| Author | Institution |
| LIU Yu-xi | a.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, b.National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China;Chuzhou University, Chuzhou 239000, China |
| LIU Yu-yan | a.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, b.National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China |
| WANG Chang-guo | a.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, b.National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China |
| TAN Hui-feng | a.MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, b.National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China |
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| 中文摘要: |
| 目的 研究有效涂层防护措施，以减缓Vectran纤维在强光辐照下的老化降解。方法 采用苯并三唑类紫外吸收剂、三嗪类紫外吸收剂和受阻胺类光稳定剂，与端羟基超支化聚酯改性TiO2进行复合，并通过超声浸渍法制备纤维涂层。通过扫描电镜、透射电镜、单丝拉伸实验、紫外透射光谱和涂层附着力测试等表征手段对复合涂层进行研究。结果 超声浸渍法有效改善了复合涂层与纤维的附着力，复合涂层能够保证200~380 nm波长范围紫外线零透过率，涂层后纤维经336 h光辐照后，保有强度比纯纤维增加了49%。结论 无机/有机复合涂层极大地减轻了光辐照对纤维本体的损伤，有效地减缓了Vectran纤维的降解，可提高Vectran纤维在平流层环境的紫外防护能力，延长其作为平流层飞艇蒙皮增强材料的服役寿命。 |
| 英文摘要: |
| To study on effective protective coating measures and retard aging of Vectran fibers under high photoirradiation, the benzotriazole absorber, triazine absorber, and hindered amine light stabilizer were used to mix with the OH terminated hyperbranched polyester-modified TiO2 to prepare coatings on fibers by ultrasonic impregnation. The complex coatings were studied by scanning electron microscope, transmission electron microscope, filament tensile test, ultraviolet transmission spectrum and adhesion test. The ultrasonic impregnation method could effectively improve the adhesion between the complex coating and the fiber. The complex coating could guarantee the zero ultraviolet transmittance in 200-380 nm. The retention strength of complex coating fiber after 336 h of light irradiation increased by 49% compared with the uncoated fiber.The inorganic/organic complex coating greatly reduces the damage of fiber under photoirradiation, and slows degradation of Vectran fibers effectively. It can improve the UV resistance of Vectran fiber in the stratosphere and extend its service life as the reinforced material of stratospheric airship envelope. |
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