Preparation and application of a ternary ethylene propylene rubber material and a covered rubber sealing ring
By using EPDM rubber material and an encapsulated design, the chemical corrosion problem of the sealing ring in perchloric acid hydroxylamine fuel is solved, achieving a sealing effect that is resistant to chemical corrosion and wear, and suitable for static and dynamic sealing of fuel tanks.
CN119708709BActive Publication Date: 2026-06-23LANZHOU INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES +2
Patent Information
- Application Number
- CN202411942682.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2044-12-27
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Figure CN119708709B_ABST
Abstract
The application belongs to the technical field of fuel tank sealing, and particularly relates to a preparation and application of a three-element ethylene-propylene rubber material and a coated rubber sealing ring. The three-element ethylene-propylene rubber material comprises the following preparation raw materials in the total weight of 100 parts: three-element ethylene-propylene rubber raw rubber 20-70 parts, tackifying resin 5-10 parts, wear-resistant filler 30-45 parts, plasticizer 1-7 parts, anti-aging agent 0.1-5 parts, vulcanizing agent 0.5-3 parts, and vulcanizing accelerator 0.1-3 parts. The wear-resistant filler comprises carbon black and nano magnesium oxide, and the mass ratio of the carbon black and the nano magnesium oxide is 5:1-20:1. The carbon black and the nano magnesium oxide are used as the wear-resistant filler, so that the strength and wear resistance of the three-element ethylene-propylene rubber material are improved. Meanwhile, the mechanical strength and chemical corrosion resistance of the three-element ethylene-propylene rubber material are significantly improved by the joint addition of the carbon black and the nano magnesium oxide.
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Citation Information
Patent Citations
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