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A calcium carbonate whisker reinforced resin-rubber-based friction material and preparation method thereof

A calcium carbonate whisker and friction material technology, applied in chemical instruments and methods, and other chemical processes, can solve problems such as unstable friction coefficient, low heat resistance, and high cost, and achieve improved stability, strength, and toughness , cost-effective effect

Inactive Publication Date: 2018-04-24
广西碳酸钙产业化工程院有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a calcium carbonate whisker reinforced resin-rubber-based friction material and a preparation method thereof. A new type of calcium carbonate whisker reinforced resin-rubber is prepared by mixing materials with an internal mixer, and undergoing process routes such as pressing molding, curing heat treatment, etc. Base friction material can partially or completely replace the position of organic or inorganic fibers in friction materials, and solve the problems of low heat resistance, thermal cracks, unstable friction coefficient and high cost of automobile brake friction materials

Method used

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  • A calcium carbonate whisker reinforced resin-rubber-based friction material and preparation method thereof
  • A calcium carbonate whisker reinforced resin-rubber-based friction material and preparation method thereof
  • A calcium carbonate whisker reinforced resin-rubber-based friction material and preparation method thereof

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Comparison scheme
Effect test

Embodiment 1

[0028] The content of each component of a calcium carbonate whisker reinforced rubber-based friction material:

[0029] Liquid nitrile rubber modified phenolic resin 12kg, styrene-butadiene rubber 6kg, calcium carbonate whisker 5kg, steel fiber 15kg, sepiolite fiber 8kg, mineral fiber 1kg, barium sulfate 8kg, magnesium oxide 5kg, aluminum oxide 3kg, flake graphite 8kg , carbon black 3kg, petroleum coke 6kg and Cardolite cashew nut shell oil friction powder 5kg.

[0030] Preparation:

[0031] (1) Ingredients: weigh various raw materials with an electronic scale in strict accordance with the above formula requirements;

[0032] (2) Internal mixing: choose a powerful pressurized flip-type internal mixer, put the ingredients into it, discharge the material from the discharge port, and mix for 15 minutes at a speed of 30r / min and a temperature of 80°C, and discharge the material from the discharge port. The discharged material is cooled at room temperature to obtain dry material,...

Embodiment 2

[0041] The content of each component of a calcium carbonate whisker reinforced rubber-based friction material:

[0042] Liquid nitrile rubber modified phenolic resin 10kg, styrene-butadiene rubber 8kg, calcium carbonate whisker 10kg, steel fiber 10kg, sepiolite fiber 5kg, barium sulfate 5kg, magnesium oxide 8kg, aluminum oxide 2kg, flake graphite 5kg, carbon black 5kg , Petroleum coke 8kg and Cardolite cashew nut shell oil friction powder 3kg.

[0043] Preparation:

[0044] (1) Ingredients: weigh various raw materials with an electronic scale in strict accordance with the above formula requirements;

[0045] (2) Internal mixing: use a powerful pressurized flip-type internal mixer, put the ingredients into it, and discharge from the discharge port. Mix for 15 minutes at a speed of 30r / min and a temperature of 80°C, and discharge from the discharge port. , the discharged material is cooled at room temperature to obtain dry material, which is stored in the storage barrel;

[0...

Embodiment 3

[0055] The content of each component of a calcium carbonate whisker reinforced rubber-based friction material:

[0056] Liquid nitrile rubber modified phenolic resin 15kg, styrene-butadiene rubber 8kg, calcium carbonate whisker 15kg, steel fiber 20kg, mineral fiber 8kg, aramid fiber 3kg, barium sulfate 8kg, magnesium oxide 8kg, aluminum oxide 3kg, flake graphite 10kg, Carbon black 1kg, petroleum coke 5kg and Cardolite cashew nut shell oil friction powder 6kg.

[0057] Preparation:

[0058] (1) Ingredients: weigh various raw materials with an electronic scale in strict accordance with the above formula requirements;

[0059] (2) Internal mixing: choose a powerful pressurized flip-type internal mixer, put the ingredients into it, discharge the material from the discharge port, and mix for 15 minutes at a speed of 30r / min and a temperature of 80°C, and discharge the material from the discharge port. The discharged material is cooled at room temperature to obtain dry material, w...

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Abstract

The invention discloses a calcium carbonate whisker-reinforced resin-rubber-based friction material and a preparation method thereof, comprising 10-15 parts of liquid nitrile rubber modified phenolic resin, 5-10 parts of styrene-butadiene rubber, and 0-25 parts of calcium carbonate whisker 10-20 parts of steel fiber, 0-8 parts of sepiolite fiber, 0-8 parts of mineral fiber, 0-3 parts of aramid fiber, 5-8 parts of barium sulfate, 5-10 parts of magnesium oxide, 2 parts of aluminum oxide ~3 parts, flake graphite 5~10 parts, carbon black 1~5 parts, petroleum coke 5~10 parts and friction powder 3~7 parts. The preparation method of calcium carbonate whisker reinforced resin-rubber-based friction material includes batching, banburying, crushing, hot pressing, immobilization treatment, cooling, and packaging steps. The brake pad prepared by the present invention has passed the MM1000-III type friction and wear test Machine test, excellent friction and wear performance, stable braking performance, safety, environmental protection, also has the advantages of good stability of friction coefficient, low wear rate, high heat resistance, etc.

Description

technical field [0001] The invention relates to the technical field of traffic materials, in particular to a calcium carbonate whisker reinforced resin-rubber-based friction material and a preparation method thereof. Background technique [0002] Friction materials are functional accessories used in many sports machinery and equipment for transmission, braking, deceleration, steering, parking, etc. Friction materials are widely used in various means of transportation, such as brake pads and clutch pads of automobiles, trains, airplanes, ships, etc., and various machinery and equipment. Converted to heat and other forms of energy to brake the transmission. Cars are the main means of transportation for people to travel, and the braking materials in the car braking system directly affect the safety performance of the car. The main problems of the automobile brake pads currently used in the market are poor stability of friction coefficient, low heat resistance, and a series of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/14C08L9/06C08L77/10C08K13/04C08K7/08C08K7/04C08K7/10C08K3/30C08K3/22C08K3/04C09K3/14C08J5/14C08J5/04B29C71/02B29C43/58
Inventor 廖森尹彩流黄映恒龙琦苇王秀飞朱仁俊文国富
Owner 广西碳酸钙产业化工程院有限公司
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