Graphene composite rubber asphalt modifier and its preparation method and application

A graphene composite, rubber asphalt technology, applied in the field of asphalt modifier, can solve problems such as unfavorable popularization and use, increase the cost of graphene modified asphalt, etc. Avoid insufficiently dispersed effects

Active Publication Date: 2021-01-05
GUANGXI UNIV +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This greatly increases the cost of graphene-modified asphalt, which is not conducive to popularization and use

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
  • Graphene composite rubber asphalt modifier and its preparation method and application
  • Graphene composite rubber asphalt modifier and its preparation method and application
  • Graphene composite rubber asphalt modifier and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Component and preparation method of embodiment 1 graphene composite rubber asphalt modifier

[0029] Graphene composite rubber asphalt modifier component is as follows (by weight)

[0030]

[0031] The specific surface area of ​​the above three-dimensional structure graphene is 500m 2 / g, the powder particle size of the rubber powder is 60 mesh.

[0032] The preparation method of above-mentioned graphene composite rubber asphalt modifier is as follows:

[0033] (1) Mix three-dimensional structure graphene and naphthenic rubber oil in a mass ratio of 0.003:13, mechanically stir, and disperse for 35 minutes with a high-speed shearing machine at 90° C., and obtain a graphene dispersion after cooling;

[0034] (2) Add the above prepared graphene dispersion, rubber powder and acrylonitrile-butadiene-styrene copolymer into the internal mixer at a mass ratio of 13:85:2.5, and carry out high-temperature internal mixing at 230°C for 35 minutes , after cooling, a graphene c...

Embodiment 2

[0035] Component and preparation method of embodiment 2 graphene composite rubber asphalt modifier

[0036] Graphene composite rubber asphalt modifier component is as follows (by weight)

[0037]

[0038] The specific surface area of ​​the above-mentioned reduced graphene oxide is 400m 2 / g, the powder particle size of the rubber powder is 40 mesh.

[0039] The preparation method of above-mentioned graphene composite rubber asphalt modifier is as follows:

[0040] (1) Mix the reduced graphene oxide and aromatic rubber oil at a mass ratio of 0.0001:5, stir mechanically, and disperse for 20 minutes with a high-speed shearing machine at 60°C, and obtain a graphene dispersion after cooling;

[0041] (2) Add the above prepared graphene dispersion, rubber powder and polyethylene into the internal mixer at a mass ratio of 5:80:0.1, carry out high-temperature internal mixing and kneading at 220°C for 20 minutes, and after cooling, make a graphene composite Rubber asphalt modifie...

Embodiment 3

[0042] Component and preparation method of embodiment 3 graphene composite rubber asphalt modifier

[0043] Graphene composite rubber asphalt modifier component is as follows (by weight)

[0044]

[0045] The specific surface area of ​​the above-mentioned graphene microsheets is 600m 2 / g, the powder particle size of the rubber powder is 80 mesh.

[0046] The preparation method of above-mentioned graphene composite rubber asphalt modifier is as follows:

[0047] (1) Mix graphene microflakes and paraffin rubber oil at a mass ratio of 0.005:20, stir mechanically, and disperse using a high-speed shearing machine at 120°C for 50 minutes, and obtain a graphene dispersion after cooling.

[0048] (2) Add the above prepared graphene dispersion, rubber powder and ethylene bis stearic acid amide in the internal mixer at a mass ratio of 20:90:5, carry out high-temperature internal mixing at 240° C. and knead for 50 minutes. After cooling, Made graphene composite rubber asphalt modi...

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
specific surface areaaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to view more

Abstract

Disclosed are a graphene composite rubber asphalt modifier and a preparation method therefor and the use thereof, wherein the graphene composite rubber asphalt modifier comprises the following components in parts by weight: 0.00005-0.01 part of a graphene powder, 3-23 parts of a dispersion medium, 78-92 parts of a rubber powder, and 0.05-6 parts of an additive. The preparation method comprises the following steps: (1) mixing the graphene powder and the dispersion medium and mechanically stirring same, and then dispersing same at a high speed so as to obtain a graphene dispersion solution; and (2) banburying the graphene dispersion solution with the rubber powder and the additive, to prepare the graphene composite rubber asphalt modifier.

Description

technical field [0001] The invention relates to the field of asphalt modifiers, in particular to a graphene composite rubber asphalt modifier and its preparation method and application. Background technique [0002] Asphalt pavement has the characteristics of comfortable driving, quietness, and convenient maintenance. At present, more than 95% of the roads in the world are paved with asphalt pavement. The important material composition of asphalt pavement ranges from the initial residual oil, experienced ordinary asphalt, and heavy traffic asphalt to the current usage. More than 50% of the modified asphalt, with the rapid economic development and the rapid increase of the traffic load, various problems have appeared in the asphalt pavement built with ordinary asphalt or heavy traffic asphalt, such as cracks, rutting, and deformation due to insufficient high-temperature performance. Insufficient low-temperature performance leads to many problems such as cracking of the road s...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L91/00C08L21/00C08L55/02C08L23/06C08K3/04C08K7/00
CPCC08L95/00C08L2201/08C08L2205/03C08L2205/035C08L91/00C08L21/00C08L55/02C08L23/06C08K3/042C08K7/00
Inventor 田植群沈培康翁晓娜归立发梁立喆李卫庆尹诗斌
Owner GUANGXI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap