Hello everyone, I’m from Annat. Today, let’s explore Calcium Sulfate Whisker—a high-performance additive revolutionizing Brake Pads Friction Materials.
First, what is it? Calcium Sulfate Whisker is a single-crystal fiber with a unique needle-like structure. Its core technical parameters set it apart: the aspect ratio ranges from 20:1 to 80:1, tensile strength reaches 1500-2000 MPa, and Mohs hardness is 3.0-3.5. These properties make it an ideal reinforcement for Brake Pads Formula.
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Brake Pads Calcium Sulfate Whisker
In brake pad applications, its advantages are remarkable.
1. Superior Reinforcement: Its high aspect ratio enables uniform dispersion in the matrix, boosting the brake pad’s flexural strength by 30-50% compared to traditional fillers. This reduces cracking during heavy braking.
Brake Linings Calcium Sulfate Whisker
2. Stable Friction Performance: With a stable friction coefficient of 0.35-0.45 across temperatures (200-400°C), it avoids “friction fade” at high temps and “cold bite” at low temps, ensuring consistent braking.
3. Low Wear Rate: The whisker’s hard yet tough structure lowers the pad’s wear rate to ≤0.8 cm³/(MJ), extending service life by 20-30% and cutting replacement frequency.
Car Brake Pads NAO(Non Asbestos Organic)Formula
4. Eco-Friendliness: Unlike asbestos or metal fibers, it produces minimal dust during use. Tests show particulate emissions are reduced by over 40%, aligning with global environmental standards.
For Annat, integrating Calcium Sulfate Whisker into Brake Pads Materials means delivering safer, longer-lasting, and greener products. It’s not just an additive—it’s a cornerstone of next-gen brake technology.






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