纳米TiO_2改性内墙乳胶漆的甲醛降解机理及制备

Formaldehyde Degradation Mechanism and Preparation of Nano TiO_2 Modified Interior Latex Coating

主要介绍了纳米TiO2改性内墙乳胶漆的抗甲醛机理和制备,重点介绍了纳米TiO2的光降解原理,以及采用锐钛型纳米TiO2复合改性纯内墙乳胶漆的实验设备、原材料选择、基本配方和工艺路线。大量测试结果表明,经纳米TiO2改性的内墙乳胶漆,24h后甲醛的降解率均可达到40%以上;纳米TiO2质量分数分别为1%和2%的乳胶漆在48h后的降解率均超过50%。

The anti-formaldehyde mechanism and preparation methods of nano TiO2 modified interior latex coating are mainly introduced. The photo-degradation principle of nano TiO2 and the experiment apparatus, raw material selection, basic formulation and process route of pure interior latex coating composite modified by anatase-based nano TiO2 are introduced in detail. Many experiment results show that the formaldehyde degration rate achieve more than 40% after 24 h by using nano TiO2 modified interior latex coating, the degradation rates of latex coatings in which nano TiO2 mass fraction are 1% and 2% respectively are all more than 50% after 48 h.