Tpe thermoplastic elastomer composite material for automobile weather strip and preparation method thereof
By modifying the interface and particle size of EPDM rubber and diatomaceous earth, the problems of interface debonding, insufficient low-temperature toughness and odor in traditional thermoplastic elastomer composite materials are solved, and the tensile properties, tear properties and flame retardant properties of the sealing strip are improved, ensuring the long-term reliability and safety of the sealing strip in cold regions.
Patent Information
- Application Number
- CN202610713107.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-22
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional thermoplastic elastomer composite materials used in automotive sealing strips suffer from interfacial debonding, low stress transfer efficiency, insufficient low-temperature toughness, and odor issues, affecting sealing performance and safety.
By modifying EPDM rubber and diatomaceous earth, and using stearic acid-modified diatomaceous earth and graft-modified EPDM rubber, the interfacial bonding strength is improved. The interfacial reinforcement is optimized by matching the carbon black particle size, and the low-temperature toughness and flame retardant properties are improved by graft modification.
It significantly improves the tensile properties, tear resistance, low-temperature toughness, and flame retardancy of the sealing strip, while reducing odor, ensuring the long-term reliability and safety of the sealing strip in cold regions.
Smart Images
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