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A kind of copper-free NaO friction material and its preparation method and application

A technology of friction materials and carbon materials, which is applied in the field of auto parts, can solve the problems of low bonding strength, deterioration of mechanical properties, and low cohesive strength, so as to improve environmental protection, improve heat resistance and noise performance, and reduce density Effect

Active Publication Date: 2020-06-30
SHANDONG GOLD PHOENIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the content of carbon material is too high, the mechanical properties will be deteriorated due to low bonding strength with the matrix and low self-cohesive strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The copper-free NAO friction material includes the following raw material components and parts by weight: 6 parts of binder, 12 parts of reinforcing fiber, 8 parts of organic regulator, 16 parts of friction-increasing filler, 5 parts of metal sulfide, 15 parts of carbon material, 10 parts of titanate filler, 28 parts of space filler;

[0059] Wherein said binding agent is phenolic resin; Described reinforcing fiber comprises 2 parts of aramid fiber, 5 parts of mineral fiber, 5 parts of ceramic fiber; Described organic conditioner comprises 5 parts of friction powder, 3 parts of nitrile rubber powder; Said Friction-increasing fillers include 6 parts of zirconia, 5 parts of silicon dioxide, and 5 parts of iron oxide; the metal sulfide includes 3 parts of ferrous sulfide and 2 parts of molybdenum sulfide; the carbon material includes 4.5 parts of synthetic graphite, 6 parts Granular coke, 1.5 parts of flake graphite and 3 parts of bamboo charcoal powder; the titanate fille...

Embodiment 2

[0069] The copper-free NAO friction material includes the following raw material components and parts by weight: 8 parts of binder, 10 parts of reinforcing fiber, 4 parts of organic regulator, 13 parts of friction-enhancing filler, 8 parts of metal sulfide, 20 parts of carbon material, 5 parts of titanate filler, 32 parts of space filler;

[0070] Wherein said binder is phenolic resin; said reinforcing fiber comprises 1 part of aramid fiber, 4 parts of mineral fiber, 5 parts of ceramic fiber; said organic conditioner comprises 3 parts of friction powder, 1 part of nitrile rubber powder; said The friction-increasing filler includes 5 parts of zirconia, 2 parts of silicon dioxide, and 6 parts of iron oxide; the metal sulfide includes 5 parts of ferrous sulfide and 3 parts of molybdenum sulfide; the carbon material includes 5 parts of synthetic graphite, 10 parts Granular coke, 1 flake graphite and 4 parts of bamboo charcoal powder; the titanate filler is potassium titanate; the ...

Embodiment 3

[0075] The copper-free NAO friction material includes the following raw material components and parts by weight: 10 parts of binder, 12 parts of reinforcing fiber, 3 parts of organic regulator, 10 parts of friction-increasing filler, 3 parts of metal sulfide, 30 parts of carbon material, 5 parts of titanate filler, 27 parts of space filler;

[0076] The binding agent is phenolic resin; the reinforcing fiber includes 2 parts of aramid fiber, 5 parts of mineral fiber, and 5 parts of ceramic fiber; the organic regulator includes 2 parts of friction powder and 1 part of nitrile rubber powder; The friction filler includes 5 parts of zirconia, 2 parts of silicon dioxide, and 3 parts of iron oxide; the metal sulfide includes 2 parts of ferrous sulfide and 1 part of molybdenum sulfide; the carbon material includes 7 parts of synthetic graphite and 11 parts of particle Coke, 2 parts of flake graphite and 5 parts of bamboo charcoal powder; the titanate filler is potassium titanate; the ...

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Abstract

The invention discloses a copper-free NAO friction material and a preparing method and application thereof, and belongs to the technical field of car parts. The copper-free NAO friction material comprises following raw materials including, in parts by weight, 4 to 17 parts of a binder, 6 to 30 parts of reinforced fibers, 1 to 10 parts of an organic conditioner, 3 to 23 parts of friction increasingfiller, 2 to 18 parts of metal sulfide, 15 to 40 parts of carbon materials, 5 to 35 parts of titanate filler and 5 to 57 parts of space filler. The carbon materials are selected from composition of synthetic graphite, granular coke, crystalline flake graphite and bamboo charcoal powder; the space filler is a composition of attapulgite and barite; according to the material and the preparing methodand application thereof, the brake service life of the NAO friction material can be obviously prolonged, the whole density and the unit size cost of a brake pad are reduced, the heat resistance and the noise of the friction material are effectively improved, an attapulgite hole structure absorbs fine dust and formaldehyde generated by friction surface wear, dust falling can be effectively avoided, and environment friendliness is improved.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a copper-free NAO friction material and its preparation method and application. Background technique [0002] Brake pads are brake pads or brake pads, which are installed on the disc brakes of automobile wheels and are one of the most critical safety components in the vehicle braking system. The advantages and disadvantages of brake noise and environmental friendliness play a very important role. [0003] Common brake pad friction materials are resin-based composite materials, which mainly include three parts: binder, reinforcing fiber and filler. The filler includes functional fillers such as friction increase and lubrication, and space fillers that only play a role in filling. During the braking process of friction materials, the resin matrix often undergoes thermal decomposition and thermal degradation reactions. The matrix decomposition and degradation cause the interface...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02C08L61/06C08L77/10C08L9/02C08K13/04C08K7/04C08K3/36C08K3/04C08K7/00
CPCC08L61/06C08L2205/03F16D69/023F16D69/026F16D2200/0052F16D2200/006F16D2200/0086C08L77/10C08L9/02C08K13/04C08K7/04C08K3/36C08K3/04C08K7/00
Inventor 种祥远甄明晖仇溢
Owner SHANDONG GOLD PHOENIX
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