| YANG Guang,DENG An-zhong.Optical Property Influence Factors of Building Energy Saving Coatings[J],46(7):144-149 |
| Optical Property Influence Factors of Building Energy Saving Coatings |
| Received:March 17, 2017 Revised:July 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.07.024 |
| KeyWord:building energy saving viscosity curing temperature reflectance infrared emissivity coating thickness |
| Author | Institution |
| YANG Guang |
Logistic Engineering University of PLA, Chongqing , China |
| DENG An-zhong |
Logistic Engineering University of PLA, Chongqing , China |
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| Abstract: |
| The work aims to improve optical property of building energy saving coatings by studying optical property influence factors of the coatings. Viscosity of paint system was adjusted by changing curing temperature, coating thickness and thickener dosage. Coating surface glossiness was changed by means of brushing painting, blade painting and spraying. Effects of curing temperature, viscosity, coating surface glossiness and coating thickness of the paint paint system on optical properties of building energy saving coatings were studied using differential scanning calormimetry (DSC), ultraviolet/visible/near infrared spectrophotometer, infrared emissivity measurement device, coating glossiness gauge and coating thickness tester. Curing temperature, viscosity, coating surface glossiness and coating thickness had slight effects on infrared emissivity in 8~14 μm band. Whereas, the factors had certain effects on total solar reflectance and near infrared reflectance. Optimum curing temperature, thickener dosage, preparation method and coating thickness should be 65 ℃, 1%, spraying and 200 μm, respectively during practical application. Changing several influence factors has significant effects on reflectance properties of the building energy saving coatings, but minor effects on infrared emissivity of building energy saving coatings. All the influence factors shall be considered comprehensively to present satisfactory optical properties during practical application. |
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