填料对反射隔热涂料性能的改性分析

Analysis on Filler's Modification to the Property of Reflective Thermal Insulation Coating

制备了一种含碱土金属碳酸盐的丙烯酸涂料和单双组分的聚氨酯涂料.系统研究了玻璃微珠、陶瓷微珠和钛白粉三种功能性填料对两种乳液涂料反射隔热性能的改性效果.结果表明:当玻璃微珠、陶瓷微珠掺量分别为8%和10%时,对丙烯酸乳液涂料的反射隔热性能改善效果最佳;三种微珠复配可使聚氨酯乳液涂料的吸收率降低约38%.功能性填料对聚氨酯乳液涂料反射隔热性能的改性效果明显优于丙烯酸乳液涂料.

Acrylic coating containing alkaline earth metallic carbonates material and single, two-component polyurethane coating are made out. Three functional fillers glass microbead, ceramic microbead and titanium dioxide＂ s modification effect on the above two emulsion coatings＇ properties of reflective heat-insulation is systematically studied. The results of experiments indicate that the modification effect on acrylic coating is optimal when the dosage of glass microbead and ceramic microbead is respectively 8% and 10%. In addition, the absorptivity of polyurethane coating can be reduced about 38% through compounding three kinds of microbeads. Functional filler＇s modification effect on polyurethane coating is obviously better than that of acrylic coating.