ZJR型涂料的制备及特性研究

利用溶胶凝胶法制备TiO2光催化剂,使用磷酸氢二钠、十水合四硼酸钠和氢氧化镁等制备了阻燃体系料,复合后制成ZJR涂料。利用热分析仪分析纳米TiO2和阻燃体系复合的防火涂料的温度与热失率关系,并得到热重与微商热重曲线。550~650℃之间,失重率约为11%,ZJR涂料在400~600℃有较好的阻燃效果。该涂料对污染气体的光催化降解研究结果表明:光照60 m in后,对二氧化硫的降解率为90.40%,紫外光照40 m in后,甲醛气体降解率为68.98%。进一步添加聚乙二醇和银离子使涂料改性,使涂料光催化甲醛的活性分别提高了11%和14%,效果显著。

Preparation of ZJR Coatings and Study on Its Characteristics

TiO_2 photocatalyst is firstly prepared by solgel method,then ZJR coatings is made by compounding NaHPO_4·H_2O,NaB_4O_7·10H_2O,Mg(OH)_2 and TiO_2.Diagram of thermogravimetry and differential quotient is gained after the relation between the temperatures and thermal loss rate of TiO_2 and ZJR coatings is analyzed by thermal analyzer.It shows that ZJR coatings have a good effect on inflaming retarding between the temperature of 400℃ and 600℃ and that loss gravimetric rate in ZJR coatings is about 11%.In addition,research on the photocatalysis degradation effect of the coatings on air pollution shows that the coatings' degradation rate for SO_2 is 90.40% after being shone by light for 60 minutes,and that for formaldehyde is 68.98% after being shone by UV-light for 40 minutes,if the coatings is added PEG and Ag+, the degradation rate is respectively improved by 11% and 14%,the effect is very remarkable.