Basalt fiber friction material and preparation method thereof
A basalt fiber and friction material technology, applied in the field of friction materials, can solve the problems of reduced friction performance, insufficient high temperature resistance and high temperature stability of plied yarn, and achieve stable friction braking torque, improved temperature deformation performance, and overall bonding. Good results
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[0026] Example: The preparation method of basalt fiber friction material includes the following steps:
[0027] (1) Preparation of the mixed fiber skeleton: take basalt fiber, aramid fiber, carbon fiber and potassium titanate fiber according to the weight ratio of 3:2:2:1, and take an appropriate amount of nitrile modified phenolic resin and nitrile rubber powder. The binder is put into a high-speed mixer and stirred for 5-7 minutes, and the speed of the high-speed mixer is 3300 revolutions / min. After being evenly mixed, it is sent into the mold cavity of the hot press molding machine, and it is hot pressed at a temperature of 160 degrees Celsius and a pressure of 35 MPa. 200 seconds to prepare a mixed fiber skeleton;
[0028] (2) Ingredients and mixing: according to the weight ratio of 1:1, take 1.2-2 times the weight of the reinforced fiber and filler of the mixed fiber skeleton weight, put it into a high-speed mixer, and add an appropriate amount of binder to stir for 5 minutes....
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