Rigid plastic capable of being marked by laser light with colors

The invention discloses rigid plastic capable of being marked by laser light with colors. The rigid plastic is prepared from graphene and heat conduction materials. The rigid plastic has the advantages that the graphene is used as a photo-thermal conversion material, partial light energy can be converted into heat energy by the graphene in laser light irradiation procedures, and accordingly clearmark patterns still can be generated on the rigid plastic by the laser light; heat which is highly concentrated can be uniformly distributed by the heat conduction materials, accordingly, the edges ofthe patterns marked by the laser light are neat, and the patterns are high in resolution. 本发明公开了种可激光彩色标记的硬质塑料，其制备原料中含有石墨烯和导热材料；所述石墨烯作为种光热转换材料能将激光照射过程中的部分光能转化为热能，使激光在所述硬质塑料上依然能产生清晰的标记图案；所述导热材料能使高度集中的热量分布较均匀，从而使激光标记的图案边缘整洁，分辨率高。