摘要
在紫外线老化前后,利用光电子能谱(XPS)研究了分别添加金红石型和锐钛型纳米TiO2的氯醚树脂。研究发现,氯醚树脂中氯、氧元素具有表面富积现象——趋肤效应,而钛和碳元素在内层聚集;添加颜料粒子越小,在表面含量越大;金红石型纳米二氧化钛紫外屏蔽性好,减缓树脂老化;而锐钛型纳米二氧化钛具有显著的光催化活性,加速树脂老化。因此,金红石型纳米二氧化钛将是一种有前途的紫外线吸收剂。
Poly （Vinyl Chloride-Co-lsobutyl Vinyl Ether） （PVCCIVE） with ruffle and anatase nano-TiO2 was investigated with XPS before and after UV light exposure respectively. The results indicate that the elements such as Chlorine and Oxygen in the PVCCIVE resin are rich in the surface, namely skin effect, in contrast, Titanium and Carbon are rich in the inner. Meanwhile, the smaller the pigment panicles, the higher the content in the surface. The results also show that the rutile nano-TiO： is excellent in UV screening and reduces the ageing of resin, while the anatase nano-TiO2 is highly active in photo catalysis and accelerates the ageing of resin. Hence then, ruffle nano-TiO2 is a kind of promising UV absorber.
出处
《海洋科学》
CAS
CSCD
北大核心
2006年第1期63-67,共5页
Marine Sciences
基金
青岛市重点实验室创新基金项目(JXM-0109)
关键词
纳米TIO2
氯醚树脂
光电子能谱(XPS)
紫外吸收
Nano- TiO2
Poly （Vinyl Chloride-Co-lsobutyl Vinyl Ether）
X-ray photoelectron spectroscopy （XPS）
UV absorption
