Introduction to CNSL Friction Dust in Brake Linings Formulas
CNSL (Cashew Nut Shell Liquid) Friction Dust is a pivotal organic additive in brake linings mixtures, derived from renewable cashew nut shells. It serves as a stabilizer and friction modifier in Brake Linings Friction Materials, offering a balance of resilience, thermal resistance, and noise suppression. Widely used in asbestos-free and semi-metallic formulations, it enhances the performance and sustainability of Brake Linings Mixes.
Technical Parameters of CNSL Friction Dust in Brake Linings Formula
| Property | Specification | Test Method |
|---|---|---|
| Particle Size | 20-40 mesh (adjustable for grade) | Sieve Analysis |
| Decomposition Temperature | 250-300°C | TGA Analysis |
| Bulk Density (g/cm³) | 0.6-0.9 | ASTM B212 |
| Carbon Content | ≥85% | ASTM D5373 |
| pH Value | 6.5-7.5 | ASTM E70 |
| Content in Formula | 5-15% (by weight) | Custom formulation |
Advantages of CNSL Friction Dust in Brake Linings Ingredients
- Impact Absorption and Stabilization:
Acts as a cushioning agent in brake linings mixtures, absorbing heavy mechanical shocks during braking and stabilizing friction behavior. - Thermal Resistance:
Withstands temperatures up to 300°C, preventing premature decomposition and maintaining friction consistency in brake linings friction materials. - Noise and Vibration Damping:
Reduces squealing and vibrations by dampening dynamic interactions between the lining and rotor. - Eco-Friendly Compatibility:
As a bio-based material, it supports copper-free and non-asbestos brake linings formula, aligning with environmental regulations. - Enhanced Adhesion:
Improves bonding with phenolic resins and other brake linings ingredients, ensuring homogeneous mix distribution and structural integrity.
Storage and Packaging Guidelines
To preserve the performance of CNSL Friction Dust in brake linings mixes:
- Packaging: Use airtight, moisture-proof bags (e.g., laminated polyethylene) with desiccants to prevent oxidation and clumping.
- Storage Conditions:
- Temperature: <30°C
- Humidity: <55% RH
- Avoid exposure to acids, alkalis, or direct sunlight.
- Shelf Life: 12-18 months in unopened packaging.
Key Applications in Brake Linings Mixtures
CNSL Friction Dust is blended with:
- Binders: Phenolic resins or polyurethane.
- Reinforcements: Aramid fibers, steel wool.
- Abrasives: Alumina, silicon carbide.
This combination creates a robust brake linings formula that meets OEM standards for durability, safety, and eco-compliance.