Butadiene Pyridine Rubber
Butadiene Pyridine Rubber: High-Performance Elastomer for Demanding Applications
Butadiene Pyridine Rubber (BPR) is a specialized synthetic rubber offering exceptional resistance to oils, chemicals, and extreme temperatures. With its unique molecular structure, this high-performance elastomer delivers superior durability in challenging industrial environments.
Key Product Features
- Excellent resistance to oils, fuels, and chemicals
- Outstanding temperature stability (-40°C to +150°C)
- Superior mechanical strength and abrasion resistance
- Good compression set characteristics
- Excellent ozone and weather resistance
Technical Specifications
| Property | Value | Test Method |
|---|---|---|
| Density | 1.10 g/cm³ | ASTM D297 |
| Tensile Strength | 18-22 MPa | ASTM D412 |
| Elongation at Break | 350-450% | ASTM D412 |
| Hardness (Shore A) | 60-80 | ASTM D2240 |
| Volume Swell in IRM 903 Oil | +5% max (70hrs @100°C) | ASTM D471 |
Standard Grades Available
| Grade | Color | Hardness (Shore A) | Temperature Range | Key Applications |
|---|---|---|---|---|
| BPR-70 | Black | 70±5 | -40°C to +140°C | Fuel hoses, gaskets |
| BPR-75 | Black/Red | 75±5 | -35°C to +150°C | Chemical seals, O-rings |
| BPR-80 | Black | 80±5 | -30°C to +150°C | Industrial rollers, diaphragms |
Butadiene Pyridine Rubber FAQ
Q: What makes Butadiene Pyridine Rubber different from other synthetic rubbers?
A: Butadiene Pyridine Rubber offers a unique combination of oil resistance comparable to fluorocarbon rubbers at a more economical price point. The pyridine groups in the polymer chain provide exceptional chemical resistance while maintaining good low-temperature flexibility. Unlike many oil-resistant rubbers, Butadiene Pyridine Rubber maintains its mechanical properties over a wide temperature range.
Q: What are the primary applications for Butadiene Pyridine Rubber?
A: Butadiene Pyridine Rubber is widely used in automotive, aerospace, and industrial applications where resistance to harsh chemicals and extreme temperatures is required. Common applications include fuel system components, chemical-resistant hoses, gaskets and seals for oil and gas equipment, industrial rollers exposed to chemical environments, and vibration dampers in machinery.
Q: How does Butadiene Pyridine Rubber perform in comparison to NBR?
A: Butadiene Pyridine Rubber shows significantly better resistance to oils, fuels and chemicals than standard NBR (Nitrile Rubber), especially at elevated temperatures. While NBR typically shows good oil resistance up to about 100°C, Butadiene Pyridine Rubber maintains its properties up to 150°C. Additionally, BPR has better ozone resistance and improved mechanical properties at both high and low temperature extremes compared to NBR.
Processing Guidelines
Butadiene Pyridine Rubber can be processed using standard rubber manufacturing techniques:
- Mixing: Use internal mixers or two-roll mills at 40-70°C
- Extrusion: Recommended die temperature 80-100°C
- Molding: Compression or injection molding at 150-170°C
- Cure Time: Typically 5-15 minutes depending on thickness
- Post Cure: Recommended for optimal properties (2-4 hours at 150°C)
Storage and Handling
To maintain optimal properties of Butadiene Pyridine Rubber products:
- Store in cool, dry conditions away from direct sunlight
- Maintain temperature between 10°C and 30°C
- Keep away from ozone sources and strong oxidizing agents
- Recommended shelf life: 5 years from production date in proper storage
Butadiene Pyridine Rubber Safety Information
Butadiene Pyridine Rubber is generally safe for most industrial applications. However:
- Avoid prolonged skin contact with uncured compounds
- Use proper ventilation when processing at elevated temperatures
- Complies with FDA 21 CFR 177.2600 for certain food contact applications
- Consult MSDS for specific handling guidelines
Industry Certifications
Our Butadiene Pyridine Rubber materials meet or exceed:
- ASTM D2000 classifications
- SAE J200 specifications
- ISO 1629 standards
- REACH and RoHS compliance
Custom Formulation Services
We offer custom formulation services for Butadiene Pyridine Rubber to meet specific application requirements. Our technical team can adjust:
- Hardness (50-90 Shore A)
- Temperature resistance range
- Compression set characteristics
- Color options
- Processing characteristics