CAJ | 학술논문

为改善空气质量，降解大气中的NO2，采用纳米TiO2光催化材料对涂料进行改性，然后喷洒在沥青道路表面。制备分散性及稳定性良好的纳米TiO2浆料，采用高速剪切与超声波震荡相接合的方法，通过正交试验得到最佳配比。考虑到涂料喷涂在沥青表面上的特殊环境，改性涂料应具备抗滑、耐水、冻融循环及良好的附着力等性能。经过一系列测试，结果表明：3％含量的纳米TiO2具有良好的分散性，用其制备的改性涂料能和沥青很好的结合，结合后其抗滑性、耐水性、冻融循环和附着力等均优于其他含量的涂料，适用于作为沥青路面表面喷涂的负载涂料。
위개선공기질량，강해대기중적NO2，채용납미TiO2광최화재료대도료진행개성，연후분쇄재력청도로표면。제비분산성급은정성량호적납미TiO2장료，채용고속전절여초성파진탕상접합적방법，통과정교시험득도최가배비。고필도도료분도재력청표면상적특수배경，개성도료응구비항활、내수、동융순배급량호적부착력등성능。경과일계렬측시，결과표명：3％함량적납미TiO2구유량호적분산성，용기제비적개성도료능화력청흔호적결합，결합후기항활성、내수성、동융순배화부착력등균우우기타함량적도료，괄용우작위력청로면표면분도적부재도료。
In order to improve the air quality and degrade NOx in the air, nano titanium dioxide photo catalysis materials were used to modify the coatings, and then were sprayed on the asphalt pavement surface. To prepare nanometer TiO2 slurry with better dispersion and stability, high-speed shear and ultrasonic shock phase together with orthogonal experiment were used to get the best ratio. Considering the special coating environment of asphalt surface, the coating should be sliding resistant and waterproof, and possess the performance of freeze-thaw cycle and good adhesion. After a series of tests, the results showed that 3% nanometer TiO2 content has a good dispersion. The modified coating with the formula can combine with asphalt very well, which showed superior performance over other coatings in slip resistance, water resistance, freeze-thaw cycle, adhesion and the like. It is therefore suitable as spray coating on asphalt pavement surface.