Preparation method of graphene composite ion exchange resin for membrane-free electrodeionization system

The invention belongs to the field of ion exchange resin preparation, and relates to a preparation method of graphene composite ion exchange resin for a membrane-free electrodeionization system. Graphene composite copolymerization white balls and a sulfonating agent are mixed for reaction at the temperature of 60-150 DEG C, the temperature is reduced to 30-50 DEG C after the reaction is completed,the ion exchange resin prepared through aftertreatment is suitable for wastewater treatment and high-purity water preparation of the membrane-free electrodeionization system, and compared with conventional resin, the exchange capacity and the conductivity are greatly improved; and moreover, the membrane-free electrodeionization performance is improved, and the regeneration voltage and energy consumption of the membrane-free electrodeionization system can be reduced. 本发明属于离子交换树脂制备领域，涉及用于无膜电去离子系统的石墨烯复合离子交换树脂的制备方法。本发明通过石墨烯复合共聚白球和磺化剂在60-150℃下混合反应，反应完成后降温至30-50℃，再经后处理制得的离子交换树脂制适用于无膜电去离子系统进行废水处理及高纯水制备，其较常规树脂交换容量、导电性得到大幅提高，