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Synthesis of white pearlescent pigments using the surface response method of statistical analysis

机译：使用表面反应统计分析法合成白色珠光颜料

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摘要

White pearlescent pigments were synthesized by coating mica flakes with a thin layer of TiO_2. To this aim a chemical bath deposition method was used. Deposition was conducted through homogeneous hydrolysis of TiCl_4 solutions in a highly acidic environment (pH < 2). To control the hydrolysis process and to study the effect of influencing factors, a statistical method of design of experiment named as "response surface method" was used. Scanning electron microscopy, X-ray diffractometery and spectrophotometery were used to characterize the pigments. It was found that among the factors investigated, temperature and time had the least and the highest effects on the coating quality, respectively. The optimal solution, i.e. concentration, temperature and time for coating was found to be 122 g L~(-1) 43 deg C and 55 h.
机译：白色的珠光颜料是通过在云母片上涂覆TiO_2薄层而合成的。为此目的，使用化学浴沉积方法。通过在高酸性环境（pH <2）中对TiCl_4溶液进行均相水解来进行沉积。为了控制水解过程并研究影响因素的影响，使用了一种统计设计的实验方法，称为“响应面法”。使用扫描电子显微镜，X射线衍射仪和分光光度计表征颜料。发现在所调查的因素中，温度和时间对涂层质量的影响分别最小和最高。发现最佳溶液，即涂布的浓度，温度和时间为43℃和55小时为122g L·（-1）。

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