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采用原位聚合方法制备以聚苯乙烯为基体掺杂一定量中空玻璃微珠的复合材料。采用扫描电子显微镜(SEM),原子力显微镜(AFM),紫外可见光分光光度计(UVPC),热导率常数测试仪(TCCT)等主要对样品材料的形貌,反射率,热导率,吸水率等性能进行表征和分析,研究其隔热机理。结果表明:玻璃微珠在聚苯乙烯基体中分散均匀;添加玻璃微珠后,材料的热导率随着玻璃微珠量的增加呈先下降后上升继而又下降的趋势;材料的反射率有着明显的提高,在可见光波段基本可达90%以上,且随着玻璃微珠含量的增加总体上是先上升继而趋于平缓;由热导率和反射率的数据说明该材料的隔热机理是阻隔型和反射型的综合作用。
The in-situ polymerization method was used to prepare polystyrene-based composite materials doped with a certain amount of hollow glass beads. The morphology, reflectivity, thermal conductivity and water absorption of the samples were characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), ultraviolet visible spectrophotometer (UVPC) and thermal conductivity constant tester (TCCT) Such as performance and characterization and analysis of its insulation mechanism. The results show that the glass beads are uniformly dispersed in the polystyrene matrix. The thermal conductivity of the glass beads increases with the increase of the glass beads, and then increases and then decreases. The reflectivity of the materials Significantly increased in the visible light band of up to 90% or more, and with the increase in the content of glass beads generally first rise and then tend to be gentle; thermal conductivity and reflectance data show that the thermal insulation mechanism of the material is Barrier and reflection of the combined effect.