The ingredients of friction material
The friction material ingredients of the friction plate are generally composed of binders, reinforcing fibers, friction performance modifiers, and process performance modifiers. These ingredients are combined through technical processes to maximize their respective functions.
The binder is generally selected from thermosetting resin and rubber, and its function is to bond the components in the formula together to form a solid with sufficient strength, appropriate hardness, high temperature resistance and wear resistance.
Reinforcing fibers must have sufficient strength and good heat and abrasion resistance, and must not scratch the counterpart. The multi-dimensional composite reinforcement system composed of glass fibers, mineral fibers, aramid fibers and sheet vermiculite has "micro and nano" scale, "one-dimensional (fiber) and two-dimensional (sheet)" morphology, "inorganic and organic" material and other characteristics.
Friction performance modifiers can improve and stabilize the friction coefficient, such as non-metallic minerals iron, iron ink, clay, etc. Their main function is to make the brake have a sufficient friction coefficient, not only in the normal temperature section, but also in the high temperature section. required braking force. For graphite, mica, talc, etc., its hardness is very low, which plays the role of lubricating the friction surface and stabilizing the friction coefficient.
Process performance regulators include release agents and special additives. The release agent enables the product to be released smoothly during the production process; the special filler improves the adhesive properties and improves the material properties.
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