In Bull Chemicals’ brake pads friction materials , mica chips are key functional fillers in formulations, crucial for enhancing product performance, durability, and safety. Their layered silicate structure is the core foundation for achieving these advantages.
Table of Contents
First, thermal stability
brake pads Mica chips maintains structural integrity at temperatures up to 700°C, far exceeding the typical operating temperature range of brake pads (200-450°C). This property resists thermal degradation, prevents pad hardening or cracking, and is key to achieving stable braking under heavy loads.
Second, lubrication regulation
Mica has a low friction coefficient (0.1-0.2), which can adjust the contact interface between the brake pads mixture, and rotor. Compared with formulations without mica, it can reduce wear rates by 15%-20%, while minimizing rotor scratches and lowering maintenance costs.
Third, structural reinforcement
The platelet shape of mica improves material cohesion. When incorporated into the formulation at a weight ratio of 5%-8%, it boosts the flexural strength of the brake pad to 8-10 MPa, enhancing the material’s resistance to mechanical stress during abrupt stops.
Fourth, noise and vibration damping
The layered structure absorbs vibrations, reducing brake squeal by 30%-40% in standard tests and improving driving comfort.
Bull Chemicals’ mica chips meet strict technical standards: particle size 100-300 mesh, moisture content ≤0.5%, and whiteness ≥85%. These parameters ensure optimal dispersion in brake pad composites, maximizing their functional value and contributing to the creation of reliable, high-performance braking systems.
