Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Inorganic nano modified phenolic resin brake pad and preparation process thereof

A phenolic resin, inorganic nanotechnology, applied in the field of brake pads, can solve the problems of insufficient wear resistance, low friction stability, heat resistance and other problems, to improve the stability of friction coefficient, high strength, improve The effect of abrasion resistance

Inactive Publication Date: 2014-12-10
NINGGUO FEIYING AUTO SPARE PARTS
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The polycondensation products of phenols and aldehydes are collectively called phenolic resins, which have excellent mechanical properties, heat resistance, cold resistance, electrical insulation, dimensional stability, molding processing and flame retardancy, and have a wide range of uses. The structure of phenolic resins The weak link is that the phenolic hydroxyl group and methylene group are easily oxidized, and the heat resistance is affected. With the continuous development of industry, especially the development of various automobile use conditions, higher requirements are put forward for high-performance wear-resistant materials. As a friction material, pure phenolic resin has insufficient heat resistance, low friction stability, and wear resistance that cannot meet special requirements. As a base material for automobile brake pads, it cannot meet the requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Inorganic nano modified phenolic resin brake pad and preparation process thereof
  • Inorganic nano modified phenolic resin brake pad and preparation process thereof
  • Inorganic nano modified phenolic resin brake pad and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] An inorganic nano-modified phenolic resin brake pad, its raw materials include by weight:

[0030]

[0031]

[0032] Wherein, the inorganic nano-modified phenolic resin is obtained by modifying the phenolic resin with modified nano-vermiculite, the water content is 0.5 wt%, and the free phenol content is 2 wt%.

[0033] Among them, the modified nano-vermiculite is prepared by the following process:

[0034] Put 8 parts of expanded vermiculite and 5 parts of sodium chloride into the mixer in parts by weight, and add hydrochloric acid, wherein the weight-to-volume ratio of vermiculite to hydrochloric acid g:ml is 10:15, and the concentration of hydrochloric acid is 4.5mol / L. Stirring at 65°C for 15 hours, centrifuging, filtering, and washing to obtain modified vermiculite;

[0035]Weigh the obtained modified vermiculite, add deionized water and mix evenly, the weight-to-volume ratio of modified vermiculite to deionized water g:ml is 10:100, add 35wt% cetyl trimethy...

Embodiment 2

[0041] An inorganic nano-modified phenolic resin brake pad, its raw materials include by weight:

[0042]

[0043] Wherein, the inorganic nano-modified phenolic resin is obtained by modifying the phenolic resin with modified nano-vermiculite, its water content is 0.8wt%, and the free phenol content is 1.5wt%.

[0044] Among them, the modified nano-vermiculite is prepared by the following process:

[0045] Put 13 parts of expanded vermiculite and 3 parts of sodium chloride into the mixer in parts by weight, add hydrochloric acid, wherein the weight-to-volume ratio of vermiculite to hydrochloric acid g:ml is 10:15, and the concentration of hydrochloric acid is 5.3mol / L, Stirring at 70°C for 10 hours, centrifuging, filtering, and washing to obtain modified vermiculite;

[0046] Weigh the obtained modified vermiculite, add deionized water and mix evenly, the weight-to-volume ratio of modified vermiculite to deionized water g:ml is 10:150, add 45wt% cetyl trimethyl on the basis...

Embodiment 3

[0052] An inorganic nano-modified phenolic resin brake pad, its raw materials include by weight:

[0053]

[0054] Wherein, the inorganic nano-modified phenolic resin is obtained by modifying the phenolic resin with modified nano-vermiculite, its water content is 0.65wt%, and the free phenol content is 1.8wt%.

[0055] Among them, the modified nano-vermiculite is prepared by the following process:

[0056] Put 12 parts of expanded vermiculite and 3.5 parts of sodium chloride in parts by weight in a mixer, add hydrochloric acid, wherein the weight-to-volume ratio of vermiculite to hydrochloric acid g:ml is 10:15, and the concentration of hydrochloric acid is 5mol / L, 68 Stirring at ℃ for 13 hours, centrifuging, filtering and washing to obtain modified vermiculite;

[0057] Weigh the obtained modified vermiculite, add deionized water and mix evenly, the weight-to-volume ratio of modified vermiculite to deionized water g:ml is 10:130, add 42.5wt% hexadecyl trimethylmethanol ba...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Densityaaaaaaaaaa
Densityaaaaaaaaaa
Densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an inorganic nano modified phenolic resin brake pad which is prepared from the following raw materials in parts by weight: 10-15 parts of inorganic nano modified phenolic resin, 15-20 parts of steel fibers, 5-6 parts of glass fibers, 20-30 parts of barite, 15-25 parts of calcium carbonate, 20-30 parts of bentonite, 8-12 parts of granular graphite, 7-8 parts of cashew nut shell oil frictional powder, 3-5 parts of spongy iron powder, 4-6 parts of magnesium oxide and 7-10 parts of garnet, wherein the inorganic nano modified phenolic resin is obtained by adopting modified nano vermiculite to modify phenolic resin, the water content is 0.5-0.8wt% and the content of free phenol is 1.5-2wt%. The invention further discloses a preparation method of the inorganic nano modified phenolic resin brake pad. According to the invention, the inorganic nano modified phenolic resin brake pad is high in thermal stability, excellent in heat resistance, good in frictional stability and wear resistance, simple in preparation process and convenient for actual operation.

Description

technical field [0001] The invention relates to the technical field of brake pads, in particular to an inorganic nano-modified phenolic resin brake pad and a preparation process thereof. Background technique [0002] Friction material is a material used for vehicle and winter mechanical braking and transmission. Its quality directly affects the reliability of mechanical equipment and the safety of operators. It mainly includes brake pads and clutch surfaces. Brake pads are used for For braking, the clutch face is used for transmission, the clutch face transmits force, and the brake pad absorbs kinetic energy to ensure the safe operation of the car. Friction materials are very critical materials. [0003] The polycondensation products of phenols and aldehydes are collectively called phenolic resins, which have excellent mechanical properties, heat resistance, cold resistance, electrical insulation, dimensional stability, molding processing and flame retardancy, and have a wid...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L61/14C08K13/04C08K7/14C08K3/34C08K3/26C08K3/04C08K3/22C08J5/14F16D69/02B29C70/34
Inventor 孙奇春
Owner NINGGUO FEIYING AUTO SPARE PARTS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com