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Microcapsule modified thermoplastic phenolic resin composite material brake pad

A technology of phenolic resin and composite materials, applied in the field of brake pads, can solve problems such as cracks on the surface of brake pads, temperature rise of brake pads, fiber pull-out and shedding, etc., to achieve large wrapping rate, enhanced bonding force, and strong adhesion Effect

Active Publication Date: 2015-01-28
NINGGUO FEIYING AUTO SPARE PARTS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the brake pads are repeatedly braked, a large temperature is generated, the temperature of the brake pads rises, the resin is partially decomposed at high temperature, the bonding force between the resin and other materials is reduced, cracks are generated on the surface of the brake pads, and the fibers are pulled out. Phenolic resin is difficult to meet the needs of friction materials at high temperatures. How to prepare a brake pad material with good toughness and excellent heat resistance has become a technical problem that needs to be solved at present.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A microcapsule modified thermoplastic phenolic resin composite brake pad, the raw materials of which include by weight:

[0019] 13 parts of modified thermoplastic phenolic resin, 20.5 parts of nylon fiber, 9 parts of pitch-based carbon fiber, 9 parts of Dutch rock wool, 12.5 parts of cellulose fiber, 20 parts of barite, 6.5 parts of fluorite, 5.8 parts of granular graphite, nitrile rubber 7.5 parts of powder, 9.2 parts of cashew nut shell oil friction powder, 4 parts of polyurea formaldehyde-coated bisphenol A epoxy resin microcapsules;

[0020] Among them, Dutch rock wool contains 56 parts of silicon oxide, 18 parts of aluminum oxide, 13 parts of calcium oxide, 11 parts of magnesium oxide, 7 parts of iron oxide by weight, and the fiber length of Dutch rock wool is 100 -150 μm, wherein the fiber length of 100-115 μm accounts for 15wt%, the fiber length of 115-130 μm accounts for 60wt%, the fiber length of 130-145 μm accounts for 20wt%, and the fiber length of 145-150 μ...

Embodiment 2

[0023] A microcapsule modified thermoplastic phenolic resin composite brake pad, the raw materials of which include by weight:

[0024] 12 parts of modified thermoplastic phenolic resin, 22 parts of nylon fiber, 10 parts of pitch-based carbon fiber, 5 parts of Dutch rock wool, 10 parts of cellulose fiber, 20 parts of barite, 5 parts of fluorite, 5 parts of granular graphite, nitrile rubber 8 parts of powder, 10 parts of cashew nut shell oil friction powder, 2 parts of polyurea formaldehyde-coated bisphenol A epoxy resin microcapsules;

[0025] Among them, Dutch rock wool contains 50 parts by weight of silicon oxide, 20 parts of aluminum oxide, 14 parts of calcium oxide, 12 parts of magnesium oxide, and 5 parts of iron oxide; the fiber length of Dutch rock wool is 100-150 μm, and the fiber length Those with a fiber length of 100-115 μm account for 20 wt%, those with a fiber length of 115-130 μm account for 40 wt%, those with a fiber length of 130-145 μm account for 30 wt%, and ...

Embodiment 3

[0028] A microcapsule modified thermoplastic phenolic resin composite brake pad, the raw materials of which include by weight:

[0029] 15 parts of modified thermoplastic phenolic resin, 15 parts of nylon fiber, 5 parts of pitch-based carbon fiber, 10 parts of Dutch rock wool, 13 parts of cellulose fiber, 15 parts of barite, 10 parts of fluorite, 6 parts of granular graphite, nitrile rubber 5 parts of powder, 8 parts of cashew nut shell oil friction powder, 4 parts of polyurea formaldehyde-coated bisphenol A epoxy resin microcapsules;

[0030] Among them, Dutch rock wool contains 58 parts by weight of silicon oxide, 15 parts of aluminum oxide, 12 parts of calcium oxide, 10 parts of magnesium oxide, and 8 parts of iron oxide; the fiber length of Dutch rock wool is 100-150 μm, and the fiber length Those with a fiber length of 100-115 μm accounted for 18 wt%, those with a fiber length of 115-130 μm accounted for 52 wt%, those with a fiber length of 130-145 μm accounted for 23 wt%...

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Abstract

The invention discloses a microcapsule modified thermoplastic phenolic resin composite material brake pad. The microcapsule modified thermoplastic phenolic resin composite material brake pad comprises the following raw materials in parts by weight: 12-15 parts of modified thermoplastic phenolic resin, 15-22 parts of nylon fiber, 5-10 parts of asphalt base carbon fiber, 5-10 parts of Dutch rock wool, 10-13 parts of cellulosic fiber, 15-20 parts of barite, 5-10 parts of fluorite, 5-6 parts of granular graphite, 5-8 parts of butadiene-acrylonitrile rubber powder, 8-10 parts of cashew nut shell oil friction powder and 2-4 parts of poly(urea-formaldehyde) coated bisphenol A-type epoxy resin microcapsule. The microcapsule modified thermoplastic phenolic resin composite material brake pad disclosed by the invention is good in toughness, moderate in hardness, wear resistant and excellent in heat resistance performance.

Description

technical field [0001] The invention relates to the technical field of brake pads, in particular to a microcapsule modified thermoplastic phenolic resin composite brake pad. Background technique [0002] When the brake pads are repeatedly braked, a large temperature is generated, the temperature of the brake pads rises, the resin is partially decomposed at high temperature, the bonding force between the resin and other materials is reduced, cracks are generated on the surface of the brake pads, and the fibers are pulled out. It is difficult for phenolic resin to meet the needs of friction materials at high temperatures. How to prepare a brake pad material with good toughness and excellent heat resistance has become a technical problem that needs to be solved at present. Contents of the invention [0003] The invention provides a microcapsule modified thermoplastic phenolic resin composite material brake pad, which has good toughness, moderate hardness, excellent wear resis...

Claims

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Application Information

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IPC IPC(8): F16D69/02C09K3/14
Inventor 孙奇春
Owner NINGGUO FEIYING AUTO SPARE PARTS
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