一种耐压缩变形的橡胶密封件及其制备方法
By combining graphene-modified and aldehyde-terminated polybutadiene rubber with piperazine to form an imine-bonded elastomer, and then using gradient temperature vulcanization treatment, the problem of deformation of rubber seals under high stress and high temperature is solved, improving their compression resistance and tensile strength, and ensuring the stability of the sealing function.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XUZHOU BAOXIN SEAL CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
Rubber seals are prone to slippage or fracture under high stress and high temperature conditions, resulting in permanent deformation, loss of cushioning and self-adaptive capabilities, reduced fatigue resistance, and impaired sealing function.
Polybutadiene rubber with graphene-modified pretreatment and aldehyde-terminated ends is reacted with piperazine to form an elastomer containing imine bonds. Combined with gradient temperature vulcanization treatment, the crosslinking density and dynamic crosslinking characteristics of the rubber seal are increased. The thermal conductivity of graphene is used to improve the uniformity of vulcanization and annealing.
It improves the resistance of rubber seals to compression set, enhances tensile strength and thermal conductivity, and ensures the stability and durability of the sealing function.
Smart Images
Figure CN120757888B_ABST