Preparation process of anti-aging high-temperature-resistant PVC plate
By combining additives, solid adhesives, modified fibers, and anti-aging agents, a sandwich structure is formed in PVC sheets, which solves the problems of PVC sheets being prone to softening at high temperatures and having insufficient anti-aging properties, thus improving high-temperature resistance and anti-aging performance.
CN122876735APending Publication Date: 2026-10-09YINGTAN TUOXIN ELECTRICAL & MECHANICAL CO LTD
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Patent Information
- Application Number
- CN202410704003.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2026-10-09
AI Technical Summary
Technical Problem
PVC sheets are prone to softening and deformation under high temperature environments and have insufficient anti-aging properties, resulting in reduced mechanical strength and toughness, making them easy to crack or break.
Method used
By combining additives, solid adhesives, modified fibers, anti-aging agents, and outer layers, a sandwich structure for PVC sheets is formed. The heat resistance and anti-aging properties are improved by utilizing the properties of strong alkali-activated metakaolin, modified nano-TiO2, and solid adhesives.
Benefits of technology
It significantly improves the high-temperature resistance and anti-aging properties of PVC sheets, reduces deformation and aging at high temperatures, enhances mechanical properties, and reduces production costs.
✦ Generated by Eureka AI based on patent content.
Abstract
The application provides a preparation process of anti-aging high-temperature-resistant PVC plate material, and belongs to the technical field of PVC plate material preparation; the preparation process comprises the following steps: preparation of an additive; preparation of a solid adhesive; preparation of an inner layer plate of the PVC plate material; preparation of an anti-aging agent; preparation of an outer layer plate of the PVC plate material; and preparation of the PVC plate material. In the application, the additive is synthesized by the way of exciting metakaolin with strong alkali, so that most of sodium hydroxide is involved in the reaction, and sodium ions are combined in the additive; HCl released by the thermal degradation of PVC resin can be effectively absorbed by the sodium ions, thereby improving the heat resistance of the PVC plate material; the addition of the additive has an inhibiting effect on the removal of HCl from the defect structure of the PVC molecular chain, thereby improving the thermal stability; and then the PVC plate material can maintain good stability during high-temperature process, thereby improving the high-temperature resistance of the PVC plate material.
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