Ultra wear-resistant nanomaterial modified phenolic resin and preparation method thereof

A technology of nano-materials and phenolic resins, which is applied in the field of ultra-wear-resistant nano-materials modified phenolic resins and its preparation, can solve the problems of poor heat resistance, poor toughness, and high brittleness, and improve mechanical properties and thermal stability. , Improve the effect of modification and excellent wear resistance

Inactive Publication Date: 2015-11-18
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Friction materials based on phenolic resin (such as vehicle brake pads, clutches) need to have good wear resistance, high thermal decomposition temperature, sufficient friction coefficient and low noise, while traditional pure phenolic resin is heat-resistant and stable Poor resistance, high brittleness, poor toughness, more and more unsuitable for the development requirements of friction materials
At present, my country's high-performance friction material phenolic resin mainly relies on imports, which greatly limits the development of my country's friction material industry

Method used

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  • Ultra wear-resistant nanomaterial modified phenolic resin and preparation method thereof
  • Ultra wear-resistant nanomaterial modified phenolic resin and preparation method thereof
  • Ultra wear-resistant nanomaterial modified phenolic resin and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] A super wear-resistant nano material modified phenolic resin, prepared by the following method: adding 10 parts of organic solvent, 10 parts of silane coupling agent, 25 parts of nano ZrO 2 Put it into a stirred tank, at room temperature, after mechanical stirring for 1.5h, add it to a ball mill for ball milling (ball milling speed 300rpm, ball-to-material ratio 4:1), and finally enter an ultrasonic reactor for 0.5h (ultrasonic power is 3KW) to obtain the surface Modified Nano ZrO 2 Suspension, add 100 parts of phenolic resin to the suspension, stir well for 0.5h, then enter the ultrasonic reactor for 0.1h (ultrasonic power 3KW), vacuum dry, crush the material to 200 mesh, and obtain a super wear-resistant Nano-ZrO 2 Modified phenolic resin. The TG figure of the modified phenolic resin prepared in this embodiment is shown in figure 1 .

Embodiment 2

[0030] A super wear-resistant nano-material modified phenolic resin, prepared by the following method: adding 1000 parts by mass of organic solvent, 20 parts of titanate coupling agent, 20 parts of polyethylene glycol, 10 parts of oleic acid , 10 parts of nano-ZnO into the stirred tank, at room temperature, mechanically stirred for 0.5h, then added to the ball mill for ball milling (rotating speed 500rpm, ball-to-material ratio 3:1), and finally entered the ultrasonic reactor for 1h (ultrasonic power 2KW) , to obtain a surface-modified nano-ZnO suspension, add 100 parts of phenolic resin to the suspension, fully stir for 0.1h, enter an ultrasonic reactor for treatment for 1h (ultrasonic power is 2KW), vacuum dry, and crush the material to 200 meshes. That is to obtain a super wear-resistant nano ZnO modified phenolic resin. The TG figure of the modified phenolic resin prepared in this embodiment is shown in figure 2 .

Embodiment 3

[0032] A super wear-resistant nano-material modified phenolic resin, prepared by the following method: adding 500 parts by mass of organic solvent, 30 parts of zirconium coupling agent, 30 parts of polyethylene glycol, and 40 parts of monoolefin Butylenediamine, 12 parts of nano-SiO 2 13 parts of nano-SiC into the stirred tank, at room temperature, mechanically stirred for 3 hours, then added to the ball mill for ball milling (rotational speed 800rpm, ball-to-material ratio 2:1), and finally entered the ultrasonic reactor for 2 hours (ultrasonic power 0.5KW), Surface-modified nano-SiO 2 / SiC suspension, add 100 parts of phenolic resin to the suspension, stir well for 1 hour, then put it into an ultrasonic reactor for 2 hours (ultrasonic power 0.5KW), vacuum dry, crush the material to 200 mesh, and obtain a super-resistant Grinding nano-SiO 2 / SiC modified phenolic resin. The TG figure of the modified phenolic resin prepared in this embodiment is shown in image 3 .

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Abstract

The invention belongs to the field of modified phenolic resins, and concretely relates to an ultra wear-resistant nanomaterial modified phenolic resin and a preparation method thereof. The preparation method of the nanomaterial modified phenolic resin comprises the following steps: 1, carrying out surface modification of a nanomaterial: dissolving a surfactant in an organic solvent, adding nanoparticles, and sequentially carrying out mechanical stirring, ball milling and ultrasonic reaction treatment to obtain a surface modified nanoparticle suspension, wherein above nanoparticles are one or more of nano-ZrO2, nano-ZnO, nano-SiO2, nano-SiC, nano-TiO2 and nano-Al2O3; and 2, adding phenolic resin into the nanoparticle suspension, fully stirring, carrying out ultrasonic reaction treatment, carrying out vacuum drying, and crushing to obtain the ultra wear-resistant nanomaterial modified phenolic resin. The nanomaterial modified phenolic resin has the advantages of strong heat stability, excellent wear resistance and extremely low wear rate, and can be widely used to prepare high performance friction materials.

Description

technical field [0001] The invention belongs to the field of modified phenolic resins, and in particular relates to a super wear-resistant nano material modified phenolic resin and a preparation method thereof. Background technique [0002] As one of the three synthetic thermosetting resins, phenolic resin has good mechanical properties, weather resistance, corrosion resistance, water resistance and certain heat resistance, and is widely used in transportation, aviation industry, military equipment, electronic appliances and other industries . However, with the development of industry, especially technological innovations such as the automobile industry and high-speed trains, new requirements have been put forward for high-performance phenolic resins. Friction materials based on phenolic resin (such as vehicle brake pads, clutches) need to have good wear resistance, high thermal decomposition temperature, sufficient friction coefficient and low noise, while traditional pure...

Claims

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Application Information

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IPC IPC(8): C08L61/06C08K9/00C08K9/06C08K9/04C08K7/18C08K3/22C08K3/36C08K3/34
Inventor 夏涛刘扬黄进石晓敏车圆圆郭飞
Owner WUHAN UNIV OF TECH
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