Preparation and performance evaluation of epoxy-based heat reflective coating for the pavement

3rd International Conference on Energy Materials and Environment Engineering

能源学;生态环境科学

Hu, B.^1 ; Liang, Y.H.^1 ; Guo, L.Y.^1 ; Jiang, T.^1

CCCC First Highway Consultants Co, Ltd, Xi'an, Shaanxi

700074, China^1

关键词: Basic characteristics;    Film-forming materials;    Functional fillers;    Functional requirement;    Heat reflective coatings;    Orthogonal experiment;    Performance evaluations;    Road performance;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/61/1/012083/pdf
DOI  :  10.1088/1755-1315/61/1/012083

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

According to the basic characteristics and composition of heat-reflective coating, combining with the functional requirements of road materials, the experiment selects the epoxy resin with good wear resistance and adhesive force as a film forming material, with TiO2, SiO2 and extinction powder as the main functional filler. The experiment gets a good formula with suitable viscosity, low glossiness and good cooling effect, optimizes by orthogonal experiment. The experiment evaluates the indoor and outdoor cooling effect of heat-reflective coating, and analyses the road performance of the coating. The results shows that the better heat-reflective coating formula included 12% of titanium dioxide, 4% of silica and 4% of extinction powder. When the dosage of coating is 0.8kg/m2, the indoor specimen of heat-reflective coating decrease the temperature of 12 ∼ 14°C, and the specimen under solar radiation can reduce the temperature of 7 ∼ 9°C. The pavement of heat-reflective coating has good wear resistance, but the road slip resistance partly declines. Therefore, it needs to add the anti-sliding particles to meet the safe driving requirements.