Shell powder is not only a kind of natural resources but also has a very good application value. It has a strong adsorption, antibacterial and fireproof ability, which could significantly improve the performance of the coating while added to the coating. In this paper, a kind of solid shell powder coating was prepared and its effect on formaldehyde adsorption was studied. Taking formaldehyde adsorption content as the index, response surface methodology (RSM) was employed to optimize the main process parameters (shell powder dosage, gelatin dosage and lithopone dosage) and investigate the regression model. The results of variance analysis showed the regression model reflected the effect of shell powder, gelatin and lithopone on formaldehyde adsorption. The optimum conditions were obtained as follows: shell powder 60 g, lithopone 12 g, gelatin 6 g. Under these optimized conditions, the adsorption formaldehyde content of the coating was 5. 87 g / kg.

贝壳粉是一种天然的资源,具有很好的应用价值,具有较强的吸附、抗菌以及防火等能力,将其加入至涂料 中能显著提高涂料的性能。 本文主要对一种固体贝壳粉涂料进行了制备,对其吸附甲醛的效果进行研究;以甲醛吸附 含量为指标,采用响应面法对主要工艺参数(贝壳粉用量、明胶用量、立德粉用量)进行优化并得到回归模型。 方差分 析结果表明:回归模型较好地反映了甲醛吸附含量与贝壳粉用量、明胶用量、立德粉用量的关系。 最佳物料用量为:贝 壳粉 60 g,立德粉 12 g,明胶 6 g,此用量比例条件下,涂料吸附甲醛含量为 5． 87g / kg。