Ceramic fiber reinforced ceramic matrix automotive brake friction material and preparation method thereof

Abstract

The invention discloses a ceramic fiber reinforced ceramic matrix automotive brake friction material and a preparation method thereof. According to a formula, the material comprises the following components in percentage by weight: 15 to 30 percent of bonding matrix, 25 to 40 percent of reinforced fiber, 10 to 20 percent of friction performance regulator, 15 to 30 percent of anti-friction lubricant, 5 to 10 percent of elasticity toughening agent and 10 to 30 percent of space filler. The ceramic fiber reinforced ceramic matrix automotive brake friction material has the advantages of long service life, high manufacturing performance and high cost performance; and the preparation method is simple and feasible.

Description

technical field The invention relates to an automobile brake friction material, in particular to a ceramic fiber reinforced ceramic matrix composite friction material used in an automobile brake system, and also relates to a preparation method of the composite friction material. Background technique Automobile brake pads are the key components of Class A of the automobile braking system, and their performance is directly related to the safety and reliability of automobile operation. At present, the mainstream automobile brake pads on the market all use metal or metal-less resin-based friction materials. Compared with asbestos sheets, metal fiber reinforced resin-based friction materials are more environmentally friendly and reduce the dust pollution of brake pads, but they have defects such as easy corrosion, loud braking noise, easy damage to the dual disc, and serious dust fall. In addition, since the matrix is ​​made of resin, there are problems such as large thermal dec...

AI Technical Summary

Problems solved by technology

Compared with asbestos sheets, metal fiber reinforced resin-based friction materials are more environmentally friendly and reduce the dust pollution of brake pads, but they have defects such as easy rust, high braking noise, easy damage to the dual disc, and serious dust fall.

In addition, since the matrix is ​​made of resin, there are problems such as large thermal decay and poor wear resistance at high temperatures.

Although carbon fiber, aramid fiber and ceramic whisker have excellent performance, they are expensive and not suitable for a large number of applications in automobile friction plates.

Glass fiber is cheap, but it is more irritating to the production operators, adding too much can lead to increased wear of the brake pads, and it is easy to generate braking noise

Images