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Preparation method of zinc oxide nanowire/carbon clothfriction material

A zinc oxide nanowire and friction material technology, applied in the field of friction materials, can solve problems such as weak interface bonding, and achieve the effects of small fiber strength damage, simple equipment and controllable process.

Active Publication Date: 2017-06-20
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Effectively improve the problem of weak interface bonding of friction materials, greatly improve the uniformity and stability of friction and wear, and prolong the service life of friction materials

Method used

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  • Preparation method of zinc oxide nanowire/carbon clothfriction material
  • Preparation method of zinc oxide nanowire/carbon clothfriction material
  • Preparation method of zinc oxide nanowire/carbon clothfriction material

Examples

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preparation example Construction

[0033] The invention provides a kind of preparation method of zinc oxide nanowire / carbon cloth friction material, at first adopt acetone, hydrogen peroxide (H 2 o 2 ) and so on to soak the carbon cloth, the former removes the organic impurities on the surface of the carbon cloth, increases the oxygen-containing functional groups on the surface of the carbon cloth, and then inoculates a layer of zinc oxide seed crystal layer on the surface of the carbon cloth, and then uses the hydrothermal method in a certain growth environment. Zinc oxide nanowires are evenly grown on the surface of the carbon cloth, and the treated carbon cloth is soaked in a modified phenolic resin solution, taken out and air-dried naturally, and hot-pressed with a vulcanizer to obtain the friction material. In the present invention, hydrogen peroxide or formic acid carbon cloth is used to increase the oxygen-containing functional groups on the surface of the carbon cloth, and impregnating the seed layer is...

Embodiment 1

[0045] Step 1: Soak a 5cm*8cm carbon cloth in acetone for 24 hours, then wash it with absolute ethanol and deionized water for 3 times, and then dry it to obtain sample A.

[0046] Step 2: Soak the carbon cloth in analytically pure hydrogen peroxide for 12 hours. Sample B was washed 3 times with deionized water and dried in an oven at 70 °C.

[0047] Step 3: Configuration of zinc source seed layer sol. Dissolve 1mmol of zinc acetate dihydrate and 2mmol of sodium hydroxide in 80ml and 100ml of absolute ethanol respectively, stir at 60°C and 500r / min to obtain solutions B and C, then cool solutions B and C to room temperature, and take from solution B Add 40ml of the solution to 320ml of absolute ethanol to obtain solution D, take 40ml from solution C and add it to 100ml of absolute ethanol to obtain solution E, slowly add solution E to solution D at 65°C, and stir at 500r / min for 10min Mix evenly and let stand for 24h to obtain Sol F.

[0048] Step 4: Sample B impregnated th...

Embodiment 2

[0054] Step 1: Soak a 5cm*8cm carbon cloth in acetone for 24 hours, then wash it with absolute ethanol and deionized water for 3 times, and then dry it to obtain sample A.

[0055] Step 2: Soak the carbon cloth in analytically pure hydrogen peroxide for 12 hours. Sample B was washed 3 times with deionized water and dried in an oven at 70 °C.

[0056] Step 3: Configuration of zinc source seed layer sol. Dissolve 1mmol of zinc acetate dihydrate and 2mmol of sodium hydroxide in 80ml and 100ml of absolute ethanol respectively, stir at 60°C and 500r / min to obtain solutions B and C, then cool solutions B and C to room temperature, and take from solution B Add 40ml of the solution to 320ml of absolute ethanol to obtain solution D, take 40ml from solution C and add it to 100ml of absolute ethanol to obtain solution E, slowly add solution E to solution D at 65°C, and stir at 500r / min for 10min Mix evenly and let stand for 24h to obtain Sol F.

[0057] Step 4: Sample B impregnated th...

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Abstract

The invention discloses a preparation method of a zinc oxide nanowire / carbon clothfriction material. The preparation method comprises the steps of firstly soaking carbon cloth cleaned by acetone in hydrogen peroxide, then carrying out crystal seed layerimpregnation on the processed carbon cloth, then adjusting pH of a growth solution to range from 8 to 10, putting the carbon cloth in a hydrothermal reaction liner for hydrothermal growth, and finally successfully growing a zinc oxide nanowire on the carbon cloth; impregnating prepared the zinc oxide nanowire / carbon cloth multi-scale enhanceosome in a resin solution, taking out for naturally drying, and hot pressing through a vulcanizing machine to obtain the friction material. According to the preparation method of the zinc oxide nanowire / carbon clothfriction material provided by the invention, the carbon cloth is processed, so that surface oxygenic functional groups are increased; a crystal seed layer is impregnated, so that the zinc oxide nanowire grows uniformly in a certain hydrothermal environment. The zinc oxide is significant in activity, moderate in hardness, and suitable for building the multi-scale enhanceosome of the friction material so as to improve a frictional wear performance of the friction material.

Description

[0001] 【Technical field】 [0002] The invention belongs to the field of friction materials and relates to a preparation method for growing zinc oxide nanowires / carbon cloth friction materials on carbon cloth. [0003] 【Background technique】 [0004] The performance requirements of the friction material: it has a good friction coefficient and wear resistance, and has a certain heat resistance and mechanical strength, which can meet the transmission and braking performance of vehicles or machinery. At present, the commonly used friction materials mainly include organic friction materials and powder metallurgy friction materials. Organic friction material is a ternary composite material, which is composed of polymer binder, fiber reinforcement and friction auxiliary agent, and is made by hot pressing and mechanical processing. Carbon fiber has the advantages of high specific strength, high specific modulus, high temperature resistance, corrosion resistance, and wear resistance. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/14C08L61/06C08K9/02C08K9/04C08K7/06C08K3/04D06M11/44D06M11/50D06M13/188D06M101/40
CPCC08K3/04C08K7/06C08K9/02C08K9/04C08K2201/011C09K3/14D06M11/44D06M11/50D06M13/188D06M2101/40C08L61/06
Inventor 费杰罗丹李盟刘鑫李星张帆胡韩伟陈俊生雒玉欣韩瑞雪
Owner SHAANXI UNIV OF SCI & TECH
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