Product Overview
Graphite-modified phenolic molding compound is a high-performance thermosetting material, formulated by blending modified phenol-formaldehyde resin with high-purity graphite filler and reinforced fibers. It integrates the intrinsic heat resistance (≥260°C) and electrical insulation of phenolic resin with the self-lubricating, low-friction, and wear-resistant properties of graphite. Designed for moving parts and harsh friction environments, it offers excellent dimensional stability, chemical resistance, and reduced maintenance requirements, complying with ISO, ASTM, and RoHS standards.
Key Technical Parameters
| Property | Specification | Test Standard |
| Density | 1.75-1.95 g/cm³ | ISO 14526-2 |
| Martens Heat Resistance | ≥260°C | ASTM D648 |
| Flexural Strength | ≥90 MPa | ISO 14526-2 |
| Impact Strength (Unnotched) | ≥30 kJ/m² | ISO 14526-2 |
| Friction Coefficient | ≤0.15 (dry sliding) | ASTM G99 |
| Wear Rate | ≤5×10⁻⁶ mm³/(N·m) | ASTM G99 |
| Volume Resistivity | ≥1.0×10⁹ Ω•m | IEC 60093 |
| Mold Shrinkage | ≤0.2% | Customer Agreement |
Application Fields
- Automotive: Gear bushings, thrust washers, brake pads, and transmission components (reduces friction and extends service life) .
- Mechanical Engineering: Sliding blocks, valve seats, pump sleeves, and bearing retainers (self-lubricating without additional oiling) .
- Electrical & Industrial: High-temperature insulation parts, motor commutators, and industrial equipment wear-resistant components (adapts to dry/harsh environments) .
Molding & Compliance
- Processing: Suitable for compression molding (160-175°C, 30-40 MPa) and transfer molding; curing time 1-3 min/mm thickness .
- Storage: Store in sealed dry environment (RH ≤60%), shelf life 6 months. Avoid direct sunlight and high humidity .
- Certifications: RoHS compliant, UL 94 V-0 flame retardant, and meets industrial wear-resistance and insulation standards .