Automotive brake block made from modified thermoplastic phenolic resin material
A phenolic resin and thermoplastic technology, applied in the field of automotive brake pads, can solve problems such as insufficient heat resistance, brake pad wear, and high brittleness, and achieve the effects of high bonding probability, improved friction resistance, and excellent heat resistance
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Embodiment 1
[0012] A modified thermoplastic phenolic resin material vehicle brake pad, its raw materials include by weight: 17 parts of modified thermoplastic phenolic resin, 16.2 parts of nylon fiber, 9.8 parts of pitch-based carbon fiber, 7 parts of polypropylene fiber, 9.2 parts of lignin fiber , 4 parts of expanded vermiculite, 14 parts of barite, 13.8 parts of chromite powder, 9.5 parts of fluorite, 6.5 parts of flake graphite, 7 parts of nitrile rubber powder, 8 parts of tire powder, 5.8 parts of iron powder, silicon dioxide 11.2 copies;
[0013] Among them, the bulk density of expanded vermiculite is 125kg / m3, the water content is 6.3%, and the sintering temperature is 1120°C;
[0014] The preparation process of the modified thermoplastic phenolic resin: heat the thermoplastic phenolic resin to completely melt, add expanded vermiculite, stir for 2.5 hours, then add the curing agent hexamethylenetetramine and mix evenly, put it in an oven at 176°C for 7 hours, A modified thermoplas...
Embodiment 2
[0016] A modified thermoplastic phenolic resin material vehicle brake pad, its raw materials include by weight: 15 parts of modified thermoplastic phenolic resin, 20 parts of nylon fiber, 8 parts of pitch-based carbon fiber, 10 parts of polypropylene fiber, 8 parts of lignin fiber , 5 parts of expanded vermiculite, 10 parts of barite, 12 parts of chromite powder, 8 parts of fluorite, 5 parts of flake graphite, 8 parts of nitrile rubber powder, 8 parts of tire powder, 5 parts of iron powder, silicon dioxide 13 copies;
[0017] The preparation process of the modified thermoplastic phenolic resin: heat the thermoplastic phenolic resin to completely melt, add expanded vermiculite, stir for 2.5 hours, then add the curing agent hexamethylenetetramine and mix evenly, put it in an oven at 178°C for 6 hours, A modified thermoplastic phenolic resin is obtained.
Embodiment 3
[0019] A modified thermoplastic phenolic resin material vehicle brake pad, its raw materials include by weight: 20 parts of modified thermoplastic phenolic resin, 15 parts of nylon fiber, 10 parts of pitch-based carbon fiber, 5 parts of polypropylene fiber, 10 parts of lignin fiber , 3 parts of expanded vermiculite, 17 parts of barite, 15 parts of chromite powder, 10 parts of fluorite, 7 parts of flake graphite, 6 parts of nitrile rubber powder, 5 parts of tire powder, 6 parts of iron powder, silicon dioxide 10 copies;
[0020] Among them, the bulk density of expanded vermiculite is 120kg / m3, the water content is 7%, and the sintering temperature is 1120°C;
[0021] The preparation process of the modified thermoplastic phenolic resin: heat the thermoplastic phenolic resin to completely melt, add expanded vermiculite, stir for 3 hours, then add the curing agent hexamethylenetetramine and mix evenly, put it in an oven at 175°C for 8 hours, and obtain Modified thermoplastic phen...
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Abstract
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