Friction Dust
Friction Dust is crossed linked product obtained from the reaction of Cashew Nut Shell Liquid with different aldehyde donors like Formaldehyde/ hexamine /Para Formaldehyde to achieve the desired Friction dust properties. Basically it is a phenol formaldehyde resin, which is polymerized and reacted with any one of the aldehyde donors and made to powder form of various standard mesh sizes.
It is a granular, brown or black color, free flowing polymerized resin. It is used as a Friction Modifier which consists of cashew resin and additives and modifiers used to meet the specific requirement of the brake lining formulations.
Applications
Friction Modifiers for brake lining, brake pads, brake shoes, railway block and clutch facing to be used in metallic, semi-metallic and non asbestos brake products.
| Applications |
Characteristics |
- Friction Modifiers for brake lining, brake pads, brake shoes, railway block and clutch facing to be used in metallic, semi-metallic and non asbestos brake products
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- Improved impact properties and reduced fade considerably by dissipating heat faster than phenol-formaldehyde (PF) resins
- Decomposition on the surface of a lining takes place at various elevated temperatures which controls the wear and offers a protective device by prohibiting excessive temperature from being developed
- Improved skid resistance and low brake noise
- The best Friction modifiers out of all modified phenolic offering impact resistance, flexibility, thermal stability
- Great water repellence, required in wet condition
- Cold Weather - CF ((CNSL-Formaldehyde)) resins give rise to a softer material, which is more efficient in 'cold wear'
- Hot Weather- Modified friction dust for applications in 'hot wear' conditions can be prepared from Modified CNSL Resin or from borated CNSL resin. Borated friction dust is known to be especially used in the production on air brake pads
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