Refrigerator door seal of sg3 type pvc modified by cpe / eea alloy and manufacturing method thereof
By modifying SG3 PVC with CPE/EEA alloy, the problems of insufficient low-temperature flexibility and resilience of refrigerator door seals have been solved, improving the overall performance and processing adaptability of the material, and realizing efficient and low-cost manufacturing of refrigerator door seals.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG SHUNDE ANHE MAGNETIC PROD
- Filing Date
- 2026-05-13
- Publication Date
- 2026-07-17
AI Technical Summary
In the existing technology, SG3 type PVC refrigerator door seals have problems such as poor low-temperature flexibility, insufficient resilience, poor compatibility, and unbalanced overall material performance after modification. The processing technology is complicated, and the matching degree between the preparation process parameters and the extrusion molding of the refrigerator door seal is low, resulting in poor sealing effect and short service life.
Refrigerator door seals made of CPE/EEA alloy modified SG3 type PVC are produced by combining CPE and EEA alloys, adding environmentally friendly plasticizers, calcium-zinc composite heat stabilizers, lubricants, inorganic fillers and compatibilizers, and using premixing, intensive mixing and granulation and extrusion molding processes to form a synergistic modification effect, improve the low-temperature flexibility and compatibility of the material, and simplify the processing technology.
This technology improves the low-temperature flexibility and resilience of modified PVC materials, enhances welding strength, prevents adhesion and corrosion between the material and refrigerator PCM sheets, and produces products with smooth, defect-free surfaces, making them suitable for industrial production and reducing raw material costs and production complexity.
Smart Images
Figure CN122404871A_ABST