Flaking and degradation of polyurethane coatings after 2 years of outdoor exposure in Lhasa

• 来源期刊: 科学通报(英文版)
• 学科: 工学
• 关键词: 聚氨酯涂料 拉萨 X射线光电子能谱 扫描电子显微镜 XPS分析 户外 退化 剥落
• 年，卷（期）: 2010,（7）
• 所属期刊栏目: ARTICLES
• 页码范围: 650-655
• 页数: 6页
• 分类号: TQ633 O484.1
• 语种: 英文

摘要

The exposure of a high gloss polyurethane aircraft topcoat system with polyurethane intermediate coating and epoxy primer to strong ultraviolet radiation in Lhasa,Tibet was studied by using scanning electron microscopy(SEM) ,atomic force microscopy(AFM) ,attenuated total reflectance Fourier-transform infrared(ATR-FTIR) ,and X-ray photoelectron spectroscopy(XPS) .Micro-flakes were found to form on the topcoat surface after exposure and the size and quantity of the flakes increased with the increase of the ex...