Packaging Machinery: High-Friction Rubber Rollers for High-Speed Film Handling
Problem Statement
High-speed film handling rollers require consistent friction coefficients (>1.2) and minimal wear under continuous operation (100+ cycles/min). Standard NBR compounds degrade due to heat buildup (>120°C) and plasticizer migration, leading to surface glazing and film slippage.
Material Science Analysis
NBR fails due to its low thermal stability and polar nitrile groups attracting plasticizers. RubberQ’s HNBR compound crosslinks with peroxide curing, eliminating plasticizers. The hydrogenated backbone resists oxidative degradation at 150°C. Carboxylated HNBR (XHNBR) further enhances abrasion resistance via ionic crosslinks.
Technical Specifications
- Shore A Hardness: 70±5 (ASTM D2240)
- Tensile Strength: 22 MPa (ASTM D412)
- Elongation at Break: 350%
- Temperature Range: -40°C to +150°C (continuous)
- Compression Set (22h @ 150°C): 18% (ASTM D395)
- Chemical Resistance: Resists oils, ethylene glycol, and weak acids (ASTM D471)
Material Comparison
| Parameter | XHNBR (RubberQ-7702) | Standard NBR | Polyurethane |
|---|---|---|---|
| Friction Coefficient (vs PET film) | 1.25 | 0.9 | 1.4 |
| Abrasion Loss (mm³, DIN 53516) | 40 | 120 | 30 |
| Max Operational Speed | 150 m/min | 80 m/min | 200 m/min |
| Service Life (cycles) | 2.5M | 0.8M | 3M |
| Cost Index | 1.8 | 1.0 | 2.5 |
Standard Compliance
RubberQ’s IATF 16949-certified production ensures:
- Batch-to-batch viscosity control (±5 Mooney units, ASTM D1646)
- Dimensional tolerances of ±0.15mm on roller diameters (ISO 3601-1)
- 100% adhesion testing for metal-bonded cores (ASTM D429 Method B)
For custom material compound development or IATF 16949 documentation, consult RubberQ’s engineering department.
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