Vehicle composite friction material containing potassium titanate whisker and preparation method thereof
A composite friction material and potassium titanate whisker technology, which is applied in the field of composite friction materials, can solve the problems of reduced friction plate strength, poor friction coefficient stability, and increased wear, and achieve reduced noise pollution, stable chemical properties, and reduced friction. The effect of slow energy transfer
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[0045] Example 1: Take the front wheel brake pads of Jetta as an example
[0046] In terms of mass percentage, the basic formula of the composite friction material containing potassium titanate is: cashew nut oil modified phenolic resin 20%; nitrile rubber 5%; crystalline potassium titanate 15%, with a diameter of 0.5 ~ 1.0um; scaly titanic acid Potassium 5%; Vermiculite 5%; Aramid fiber (Kevlar fiber) 1%; Sepiolite fiber 4%, Alumina 6%; Talc 6%; Molybdenum disulfide 5%; Barium sulfate 20%; Calcium hydroxide 8%. Mix the above materials uniformly, weigh and pour into the mold for compression molding, the temperature is 145C°; the pressure is 12Mpa; the holding time is 7 minutes (holding time 0.5-1 min / mm) and venting 2 times; the height after pressing It is 12mm. Put the pressed material in a constant temperature box, and after 20 hours of heat preservation treatment at a temperature of 150C°, then mechanical processing, painting and packaging are carried out to prepare a composite...
Example Embodiment
[0051] Example 2: Take the front wheel brake pads of Jetta as an example
[0052] Basic formula (calculated by mass fraction): cashew nut oil modified phenolic resin 15%; nitrile rubber 3%; crystal potassium titanate 20%; scaly potassium titanate 3%; vermiculite 3%; Kevlar fiber 1%; Sepiolite fiber 5%, alumina 12%; talc powder 10%; molybdenum disulfide 3%; barium sulfate 15%; calcium hydroxide 10%. Mix the above materials uniformly, weigh and pour into the mold for compression molding, the temperature is 150C°; the pressure is 10Mpa; the holding time is 8 minutes (holding time 0.5-1 min / mm) and venting 3 times; the height after pressing is 12mm, put the pressed material in a thermostat, temperature 155C ° after 24 hours of heat preservation treatment, and then mechanical processing, painting, packaging, to obtain the potassium titanate whisker-containing composite friction material for vehicles.
[0053] According to the national standard (GB5763-1998), the friction and wear test ...
Example Embodiment
[0056] Example 3: Take the front wheel brake pads of Jetta as an example
[0057] Basic formula (calculated by mass fraction): cashew nut oil modified phenolic resin 25%; nitrile rubber 6%; crystal potassium titanate 10%; scaly potassium titanate 6%; vermiculite 8%; Kevlar fiber 2%; Sepiolite fiber 3%, alumina 9%; talc 12%; molybdenum disulfide 4%; barium sulfate 10%; calcium hydroxide 5%. Mix the above materials uniformly, weigh and pour into the mold for compression molding, the temperature is 155C°; the pressure is 14Mpa; the holding time is 6 minutes (holding time 0.5-1 min / mm) and venting 2 times; the height after pressing is 12mm, put the pressed material in a constant temperature box, temperature 160C ° after 12 hours of heat preservation treatment, and then mechanical processing, painting, packaging, to obtain the potassium titanate whisker-containing composite friction material for vehicles.
[0058] According to the national standard (GB5763-1998), the friction and wear ...
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