以磷钼酸为变色材料，氨基有机硅树脂为成膜物质成功制备了光致变色涂层，该光致变色涂层可用于自动划线新领域。并采用 FT-IR、ESR和 UV-Vis 等测试手段对光致变色涂层进行了表征，研究了该光致变色涂料的光致变色性及其稳定性。测试结果表明，该变色涂料由黄色变为蓝色是因为其在紫外光的照射下，磷钼酸与氨基有机硅树脂中的氨基发生光氧化还原反应生成磷钼蓝所致，且该变色为不可逆变色。
A photochromic coating was prepared from phosphomolybdic acid as photochromic material and amino silicone resin as film-forming substance,and the photochromic coating could be used in the new field of auto-marking.The photochromism and photochromic stability of the photochromic coating were studied by FT-IR, ESR and UV-Vis spectroscopy.The results show that the photochromic coating undergoes a photoredox reac-tion between phosphomolybdic acid and amino of silicone resin on irradiation with ultraviolet light to form phos-phorus molybdenum blue,accompanied by a color change from yellow to blue,and the color change was irre-versible change.
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