Preparation method and application of antibacterial coating based on polyvinyl chloride plastic
A photocatalytic antibacterial coating material was prepared by catalytically cracking waste polyvinyl chloride plastic and compounding it with polyelectrolytes. This solved the problem of waste plastic utilization and achieved low-cost, high-efficiency photocatalytic and antibacterial properties, making it suitable for various environmental applications.
CN121851802APending Publication Date: 2026-04-14JILIN UNIVERSITY
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Patent Information
- Application Number
- CN202610131802.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-30
- Publication Date
- 2026-04-14
AI Technical Summary
Technical Problem
Existing technologies are difficult to effectively utilize waste polyvinyl chloride plastics, and the preparation of existing photocatalytic materials is complex and costly, which limits their application in functional coatings.
Method used
By mixing waste polyvinyl chloride plastic with a catalyst, performing catalytic cracking, and then combining it with a polyelectrolyte, a coating material with photocatalytic activity and antibacterial properties is prepared.
Benefits of technology
It enables the high-value utilization of waste polyvinyl chloride plastics, reduces preparation costs, possesses stable photocatalytic performance and antibacterial effects, is suitable for various environmental conditions, and has good prospects for industrial application.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention belongs to the technical field of functional polymer materials and photocatalysis, and particularly relates to a preparation method and application of an antibacterial coating based on polyvinyl chloride plastics. Comprising the following steps: S1, pretreatment; s2, carrying out a reaction; s3, post-processing is carried out; s4, compounding with polyelectrolyte; and S5, preparing the coating. Through a specific catalytic cracking process, the waste PVC is converted into a functional photocatalytic antibacterial coating material, so that resource utilization and functional utilization of the waste chlorine-containing plastic are realized; a catalytic cracking process under a solvent-free condition is adopted, so that the use of an organic solvent is avoided; the coating material has relatively good photochemical stability, and can realize a relatively lasting antibacterial effect; the method has relatively low requirements on equipment, reaction conditions are easy to control, and the method is not only suitable for laboratory research, but also convenient for engineering and industrial amplification. And by combining the processing performance of the obtained coating, the technology has popularization and application potential.
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