利用不同粒径玻璃微珠的复合构筑高效隔热反射真石漆

Preparation and Research of High-Efficiency Thermal Insulation Coatings Using Glass Beads with Different Particle Sizes

摘要: 制备了一种以不同粒径空心玻璃微珠为主要填料的水性建筑隔热反射真石漆，探究了玻璃微珠复配粒径、总体用量等参数对涂料隔热性能的影响。采用两种不同粒径空心玻璃微珠复配的方法，发现玻璃微珠粒径为60 μm和160 μm且复配比例等于1.2:1，总体用量为12%时，所得真石漆隔热性能最好，耐碱性96 h无异常，耐水性96 h无异常，耐老化600 h涂层完好不起泡、不剥落，低温稳定不变质，施工无障碍。在碘钨灯的照射下，采用控制单–变量法，测得添加了空心玻璃微珠的真石漆比未添加的普通真石漆经过1 min辐射后温度要低出4.6℃。

Abstract: A water-based architectural heat-insulating reflective real stone paint with hollow glass beads of different particle sizes as the main filler was prepared, and the influence of glass beads particle size and overall dosage on the thermal insulation performance of the coating was explored. It is found that when the particle size of the glass beads is 60 μm and 160 μm, the compounding ratio is equal to 1.2:1, the total dosage is 12%, the obtained real stone paint has the best heat insulation performance. There is no abnormality in the alkali resistance for 96 hours, and the water resistance for 96 hours. The aging resistance coating for 600 hours is intact without bubbling or peeling. It is stable at low temperature and does not deteriorate. Under the irradiation of the iodine tungsten lamp, using the controlled single variable method, the temperature of the real stone paint with hollow glass beads added is 4.6˚C lower than the ordinary real stone paint without addition after 1 min of radiation.