采用响应曲面法优化并建立了溶胶凝胶法合成二氧化硅微球的粒径的模型.研究并探讨了单因素的变化对粒径的影响.以单因素实验筛选出的实验条件为基础,根据响应曲面法设计了实验.通过计算机对数据进行二次回归拟合以及方差分析,删减不显著项并重新拟合,使得模型能够较好的反映实际情况.根据拟合后的模型,分析了交互作用的影响,预测溶胶凝胶法的适用范围及特定粒径的合成条件.与实际对比,发现误差值在100 nm以内,能够为后来的研究者提供较好的参考.
The particle size of silica microspheres synthesized by sol-gel method was optimized by response surface method.The effect of single factor on particle size was studied and discussed.Based on the experimental conditions selected by the single factor experiment, the experiment was designed according to the response surface method.The data were analyzed by quadratic regression and variance analysis and the insignificant terms are deleted and refitted to make the model reflect the actual situation better.Based on the fitted model, the influence of the interaction was analyzed.The suitable range of sol-gel method and the synthesis conditions of specific particle size were predicted.It is found that the error value is within 100 nm, which can provide a good reference for the later researchers.
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