The invention relates to the technical field of intelligent materials, and discloses a preparation method of a graphene/steel composite material and a magnetically levitated train. The method comprises the following steps: mixing steel powder with deionized water, and stirring for 25-35 minutes under magnetic force; adding a catalyst, heating to 55-65 DEG C, and continuously stirring for 4 hours; heating a mixture obtained by continuously stirring for 4 hours to 95-105 DEG C, putting the mixture into a reaction container, and preserving heat for 24 hours; removing the precipitate in the reaction container; adding a graphene oxide solution into the mixture after the precipitate is removed, and carrying out ultrasonic dispersion for 25-35 minutes to obtain a suspension; heating the suspension to 55-65 DEG C, and then adding a reducing agent; performing centrifugal operation on the suspension added with the reducing agent by using a centrifugal machine to obtain a centrifuged product; and drying the centrifuged product for 2 hours to obtain the graphene/steel composite material. Therefore, the tensile strength, the shear strength, the yield strength, the elastic modulus and the like of the stainless steel material can be improved.
本发明涉及智能材料技术领域,公开了一种石墨烯/钢复合材料制备方法及磁悬浮列车。其中,该方法包括:将钢粉末与去离子水混合,并在磁力下搅拌25‑35分钟;加入催化剂后加热至55‑65℃,并持续搅拌4小时;将持续搅拌4小时得到的混合物加热至95‑105℃后放入反应容器中保温24小时;去除反应容器中的沉淀物;在去除沉淀物后的混合物中加入氧化石墨烯溶液,并利用超声分散25‑35分钟得到悬浮液;将悬浮液加热至55‑65℃后加入还原剂;利用离心机对加入还原剂后的悬浮液进行离心操作得到离心后的产物;将离心后的产物干燥2小时,得到石墨烯/钢复合材料。由此,可以提高不锈钢材料的抗拉强度、抗剪强度、屈服强度以及弹性模量等。
Graphene/steel composite material preparation method and maglev train
石墨烯/钢复合材料制备方法及磁悬浮列车
2022-07-15
Patent
Elektronische Ressource
Chinesisch