散热粉末涂料用石墨烯聚酯树脂的制备和性能研究

Synthesis and Properties of Graphene Modified Polyester Resin for Heat Radiation Powder Coatings

提出在聚酯树脂合成的过程中加入含石墨烯原材料制备石墨烯聚酯树脂复合材料。实验表明,石墨烯的引入不会对聚酯树脂合成过程和指标参数造成影响,同时,对后续制成的粉末涂料的性能如流平、弯折和反应活性等也不会产生影响,但是会轻微降低涂层的机械性能和耐候性能。通过采用自制的散热性能测试仪器发现,石墨烯的引入可以显著提高涂层的散热性能,且在一定厚度范围内,散热能力随着涂层厚度的增加而增加。

The graphene-contained materials are added during the synthesis process of polyester resin,thus a graphene modified polyester resin is prepared.It is revealed that the introduction of graphene has no effect on the synthesis process and parameters of polyester resin,in addition,has no effect on the properties of powder coatings,such as levelling property,bending property and reactivity.However,the mechanical and durability properties of powder coatings are decreased slightly.The self-made heat-radiating device is used to investigate the graphene modified powder coatings.The results show that the addition of graphene can significantly increase the heat radiation of powder coatings.Moreover,the heat radiation property increases with the increase of the film thickness in a certain range.