Rubber Aging Tests: Interpreting Arrhenius Plots for Service Life Prediction.
Rubber Aging Tests: Interpreting Arrhenius Plots for Service Life Prediction
Problem Statement
Rubber components degrade over time due to thermal aging, leading to compression set failure, reduced elasticity, and compromised sealing performance. Predicting service life at elevated temperatures is critical for applications like EV battery cooling seals and AI server gaskets.
Material Science Analysis
Thermal aging accelerates polymer chain scission and oxidation. FKM (Fluorocarbon Rubber) excels in high-temperature environments due to its fluorine-carbon backbone, which resists chemical attack and thermal degradation. EPDM offers good heat resistance but lacks FKM’s chemical stability. NBR degrades rapidly above 120°C due to its unsaturated carbon chain.
Technical Specs
- FKM: Shore A Hardness: 75, Tensile Strength: 15 MPa, Elongation at Break: 200%, Temperature Range: -20°C to 200°C
- EPDM: Shore A Hardness: 70, Tensile Strength: 12 MPa, Elongation at Break: 300%, Temperature Range: -40°C to 150°C
- NBR: Shore A Hardness: 65, Tensile Strength: 10 MPa, Elongation at Break: 400%, Temperature Range: -30°C to 120°C
Technical Comparison
| Parameter | FKM | EPDM | NBR |
|---|---|---|---|
| Temperature Range (°C) | -20 to 200 | -40 to 150 | -30 to 120 |
| Compression Set (%) | 15 | 25 | 35 |
| Chemical Resistance | Excellent | Good | Fair |
Standard Compliance
RubberQ adheres to IATF 16949 standards for batch-to-batch consistency. Our compounding process aligns with ASTM D2000 for material callouts and ISO 3601 for sealing performance. Arrhenius aging tests are conducted per ASTM D573 to predict service life.
For custom material compound development or IATF 16949 documentation, consult RubberQ’s engineering department.
Technische Updates abonnieren
Erhalten Sie neue Material-Insights und Engineering-Notizen per E-Mail.
Verwandte Artikel
07. Apr. 2026
Surface Blooming: Is that White Powder on your Rubber Part a Defect?
Surface Blooming: Is that White Powder on your Rubber Part a Defect? Problem Statement A white powdery residue (blooming) appears on EPDM rubber seals after 72 hours of heat aging at 150°C. The customer suspects material degradation, but the root cause is likely unreacted curing agents migrating to the surface. Material Science Analysis Primary Cause: […]
Artikel lesen07. Apr. 2026
A-Batch Mixing: How RubberQ’s Internal Compound Development Ensures Material Purity.
A-Batch Mixing: How RubberQ’s Internal Compound Development Ensures Material Purity Problem Statement Third-party rubber compounds often introduce contamination risks, inconsistent filler dispersion, and batch-to-batch variability. These issues lead to premature seal failure in high-temperature (150°C+) or chemically aggressive environments. Material Science Analysis Contaminants (e.g., residual processing oils, cross-linked agglomerates) create weak points in vulcanized rubber. […]
Artikel lesen06. Apr. 2026
Tolerance Grade M2: Understanding ISO 3302-1 for Precision Molded Parts.
Tolerance Grade M2: Understanding ISO 3302-1 for Precision Molded Parts Problem Statement Precision molded rubber parts often fail due to dimensional instability under high-temperature and high-pressure conditions. This leads to compression set failure and chemical degradation, particularly in applications like EV battery cooling seals and AI server manifold gaskets. Material Science Analysis Standard EPDM and […]
Artikel lesenBenötigen Sie technische Beratung?
Unser Ingenieurteam kann Ihnen helfen, diese Materialerkenntnisse auf Ihr spezifisches Projekt anzuwenden.
ANGEBOT ANFORDERN