排序方式: 共有6条查询结果,搜索用时 15 毫秒
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纳米紫外屏蔽透明涂料 总被引:20,自引:0,他引:20
本文对纳米ZnO和SiO2 在紫外屏蔽涂料中的应用进行了综述。阐述了有关纳米材料在紫外屏蔽涂料中应用的一些初步研究结果。通过对涂料的紫外屏蔽率测定 ,发现纳米ZnO和SiO2能够明显提高涂料的抗紫外老化性 ,并制备了具有紫外屏蔽作用的纳米透明涂料 相似文献
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无机纳米涂料因其良好的抗腐蚀、抗擦伤和紫外线屏蔽性,已成为抗紫外涂料研究的热点,其中纳米TiO2、ZnO因良好的紫外吸收能力、稳定的化学性质和无毒副作用等特点,而被广泛地研究和应用。着重对纳米TiO2、ZnO等无机抗紫外涂料的研究进展、作用机理、制备方法进行了综述,并对其应用前景进行了展望。 相似文献
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等离子喷涂液相溶胶制备纳米ZrO2涂层的结构 总被引:1,自引:0,他引:1
采用等离子喷涂液相溶胶制备了氧化锆纳米结构涂层。用X射线衍射仪、扫描电镜观察了溶胶干燥粉末和涂层的物相组成及显微结构。结果表明,溶胶自然干燥后为非晶态,通过加热可以得到晶体结构,等离子喷涂形成的涂层为单斜相与立方相的混合晶体结构。涂层由致密的熔化较好的颗粒和微裂纹组成。该方法能够得到晶粒很细的纳米结构涂层。 相似文献
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A study on the N-, S- and Cl-modified nano-TiO2 coatings for corrosion protection of stainless steel
Hong Yun 《Electrochimica acta》2007,52(24):6679-6685
Nano-titania coatings doped with anions of nitrogen, sulfur and chlorine have been supplied on the surface of 316L stainless steel by a sol-gel process and dip-coating technique. The measurements of XRD, SEM, ATR-IR, Raman and XPS were carried out to characterize the chemical composition and structure for the prepared samples. The corrosion performances of the coating in 0.5 M NaCl were evaluated by electrochemical impedance spectroscopy (EIS) and polarization measurements. According to the measurements of EIS and electrochemical polarization, the N-modified TiO2 nano-coatings show a highest corrosion resistance among the prepared coatings. It is revealed, from the SEM, XRD and Raman characterizations, that the surface of N-modified TiO2 nano-coatings are more compact and uniform, relatively well-crystallized and able to act as an optimal barrier layer to metallic substrates. The XPS analysis confirms the presence of low concentration of N element in two forms, atomic β-N (interstitial state) and chemisorbed γ-N2 on the surface of TiO2 nano-coatings. It is suggested that the addition of nitrogen is beneficial to improve the compact structure and enhance the hydrophobic property. 相似文献
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