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研究了石墨烯包覆对于三聚氰胺-尿素-甲醛树脂(MUF)微胶囊红外发射率以及热性能的影响。研究表明,MUF@石墨烯复合材料粒径分布均匀,石墨烯成功包覆在了微胶囊表面,MUF@石墨烯复合材料的微胶囊化效率为80.4%。在1~14μm波段,MUF微胶囊的红外发射率为0.95,MUF@石墨烯复合材料的红外发射率为0.69,下降27.3%。MUF@石墨烯复合材料的热导率为0.5037W/(m·K),相对于MUF微胶囊提高159%。
The effects of graphene coating on infrared emissivity and thermal properties of melamine-urea-formaldehyde resin (MUF) microcapsules were investigated. The results showed that the particle size distribution of MUF @ graphene composites was uniform and graphene was successfully coated on the surface of microcapsules. The microencapsulation efficiency of MUF @ graphene composites was 80.4%. In the band of 1 ~ 14μm, the infrared emissivity of MUF microcapsules was 0.95, and the infrared emissivity of MUF @ graphene composites was 0.69, dropping by 27.3%. The thermal conductivity of MUF @ graphene composites was 0.5037 W / (m · K), which was 159% higher than that of MUF microcapsules.