Regulation and control method for friction force of graphene
By treating graphene sheets with plasma and folding their edges, the strength of the pseudo-magnetic field is modulated, solving the problem of difficult-to-control friction in two-dimensional materials. This enables precise control of graphene friction, which is suitable for friction control and braking in micro- and nano-devices.
CN121342011APending Publication Date: 2026-01-16LANZHOU INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES
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Patent Information
- Application Number
- CN202511616367.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-06
- Publication Date
- 2026-01-16
AI Technical Summary
Technical Problem
Existing technologies cannot effectively control friction in different application scenarios, especially since the edge structure of two-dimensional materials makes friction difficult to regulate.
Method used
By introducing structural defects through plasma treatment of graphene sheets and using nanomanipulation with atomic force microscopy to fold the edges of the graphene sheets to form a folded structure, the strength of the pseudo-magnetic field is controlled to reduce friction.
Benefits of technology
It achieves precise control of the frictional force of graphene, enabling stable frictional force in different application scenarios, and is suitable for frictional control and precise manipulation of micro and nano devices.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of two-dimensional material lubrication, and particularly relates to a regulation and control method for graphene friction force. The preparation method comprises the following steps: performing plasma treatment on a graphene sheet on the surface of a substrate to introduce structural defects to obtain a pretreated graphene sheet; and folding the exposed edge of the pretreated graphene sheet on the surface of the substrate by adopting nano manipulation of an atomic force microscope to obtain a folded pretreated graphene sheet. According to the method, defect structures with different densities are introduced through plasma treatment to weaken and damage a pseudo magnetic field, and effective regulation and control on friction of the edge of the folded graphene are realized. The method provided by the invention is simple to operate, has high regulation and control precision on the friction force of the graphene, and can be widely applied to friction regulation and control of micro-nano devices.
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