Preparation method of micro-texture thickness-controllable polishing film based on electrophoretic deposition technology

CN120683589APending Publication Date: 2025-09-23ZHEJIANG UNIV OF TECH
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Patent Information

Application Number
CN202510909093.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2025-09-23

AI Technical Summary

Technical Problem

Existing methods for preparing polishing films have problems such as easy shedding of abrasive particles, environmental pollution by resin binders, high texture preparation costs or complex processes, and uncontrollable abrasive distribution, which affect polishing quality and efficiency.

Method used

Electrophoretic deposition technology is used to prepare micro-textures and form an abrasive layer on the film substrate. Through micro-embossing, heat setting, corona treatment and electrophoretic deposition processes, the abrasive particles are firmly fixed and the thickness is controllable, avoiding the use of resin binders.

Benefits of technology

The uniformity and adhesion of the abrasive layer are improved, environmental pollution is reduced, polishing efficiency and quality are improved, and it is suitable for large-scale production.

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Abstract

The invention discloses a preparation method of a micro-texture thickness-controllable polishing film based on an electrophoretic deposition technology. The preparation method comprises the following steps: S1, manufacturing a micro-texture pattern on the surface of a film substrate through a micro-imprinting technology; s2, carrying out heat setting treatment on the micro-imprinted film to prevent the shape change in the electrophoretic deposition process; then corona treatment is carried out to improve the surface energy and enhance the bonding strength with the conductive adhesive; s3, spraying a conductive adhesive on the surface of the heat-set film substrate; s4, the thin film sprayed with the conductive adhesive is placed on a substrate, and then the substrate is placed in an electrophoresis tank containing deposition liquid; under the action of an electric field, the abrasive particles in the deposition liquid move towards the thin film and are deposited on the surface of the thin film through the electrophoretic deposition technology, and a uniform abrasive particle layer with the thickness controlled is formed. According to the method, the polishing film is manufactured through specific process steps, abrasive particles are not prone to falling off, the service life is long, the polishing performance is good, the problem that a resin binder adheres to the polishing surface after machining does not exist, the cleaning procedure can be avoided, and pollution to the environment can be reduced.
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