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A rubber-modified multi-component resin material for disc brake pads and its application

A multi-component resin and rubber modification technology, used in the field of auto parts, can solve the problems of high braking noise of brake pads, short brake disc life, poor heat resistance, etc. Improve the effect of effective absorption

Active Publication Date: 2019-09-10
SHANDONG GOLD PHOENIX
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a rubber-modified multi-component resin material for disc brake pads and its application, which overcomes the problems of large braking noise, Problems of poor heat resistance and short brake disc life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Raw material composition and mass percentage of disc brake pads:

[0051]Benzoxazine resin 4%, cashew nut shell oil modified phenolic resin 4%, epoxy resin 4%, fully cross-linked nitrile rubber 3%, semi-cross-linked nitrile rubber 2%, slightly cross-linked nitrile rubber 2% , 2% aramid pulp, 15% mineral fiber, 2% copper fiber, 3% alumina, 5% calcium hydroxide, 5% synthetic graphite, 5% granular coke, 3% antimony sulfide, 10% potassium titanate, Barite 31%.

[0052] The disc brake pad preparation method comprises the following steps:

[0053] (1) Two-step mixing: the first step mixing: first put benzoxazine resin, cashew nut shell oil modified phenolic resin, epoxy resin, powdered nitrile rubber in a high-speed mixer, and stir for 5 minutes; Step mixing: Then put aramid pulp, mineral fiber, copper fiber, aluminum oxide, calcium hydroxide, synthetic graphite, granular coke, antimony sulfide, potassium titanate, barite into the plow-type high-speed mixer, and stir 420 s...

Embodiment 2

[0061] Raw material composition and mass percentage of disc brake pads:

[0062] Benzoxazine resin 3%, cashew shell oil modified phenolic resin 3%, epoxy resin 3%, fully cross-linked nitrile rubber 3%, semi-cross-linked nitrile rubber 2%, aramid pulp 2%, mineral Fiber 15%, copper fiber 2%, alumina 3%, calcium hydroxide 5%, synthetic graphite 5%, granular coke 5%, antimony sulfide 3%, potassium titanate 10%, barite 36%.

[0063] The preparation method of the disc brake pad is the same as in Example 1.

Embodiment 3

[0065] Raw material composition and mass percentage of disc brake pads:

[0066] Benzoxazine Resin 4%, Cashew Shell Oil Modified Phenolic Resin 4%, Epoxy Resin 4%, Semi-Crosslinked Nitrile Rubber 2%, Microcrosslinked Nitrile Rubber 3%, Aramid Pulp 2%, Mineral Fiber 15%, copper fiber 2%, alumina 3%, calcium hydroxide 5%, synthetic graphite 5%, granular coke 5%, antimony sulfide 3%, potassium titanate 10%, barite 33%.

[0067] The preparation method of the disc brake pad is the same as in Example 1.

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Abstract

The invention discloses a rubber modified multielement resin material for disc brake pad and purposes. With the total mass of raw material components of the rubber modified multielement resin material as reference, the rubber modified multielement resin material comprises the following raw material components in percentage by mass: 1-5% of benzoxazine resin, 1-5% of cashew nut shell oil modified phenolic resin, 1-5% of epoxy resin, 1-15% of powder nitrile rubber, 0.5-3% of aramid fiber pulp, 5-20% of mineral fiber, 2-5% of red copper fiber, 1-7% of aluminum oxide, 1-5% of calcium hydroxide, 3-9% of synthesized graphite, 3-9% of granular coke, 2-9% of antimony sulfide, 5-15% of potassium titanate, and 15-45% of barite. The material is applied to the disc brake pad, reduces the wear of the brake pad, reduces the generation frequency of braking noise, and shows better performances on such aspects as friction loss, noise and heat stability.

Description

technical field [0001] The invention relates to the technical field of auto parts, in particular to a rubber-modified multi-component resin material for disc brake pads and its application. Background technique [0002] Disc brake pads for automobiles refer to the disc brakes installed on the wheels of automobiles. They are the most critical safety parts in the automobile braking system. The brake pads play a decisive role in the braking effect of automobiles. [0003] Due to the inherent properties of phenolic resin, the currently widely used single phenolic resin-based disc brake pads often have problems such as high resin brittleness, poor noise, poor heat resistance, and poor friendliness to the counterpart brake disc. At present, the commonly used modification method is a single modification method, such as rubber modification to improve noise performance, boron modification to improve heat resistance, but single modification is difficult to comprehensively improve the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16D69/02C08L61/34C08L61/14C08L63/00C08L9/02C08L77/06C08K7/06C08K3/04C08K3/22
Inventor 甄明晖种详远
Owner SHANDONG GOLD PHOENIX
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