Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of anti-ultraviolet aging asphalt and preparation method thereof

An anti-ultraviolet aging and asphalt technology, which is applied in building components, building insulation materials, buildings, etc., can solve the problems of physical migration of light stabilizers, segregation and delamination of nanopowder and asphalt, and easy volatilization, so as to prevent physical migration Or volatilization loss, improve the anti-ultraviolet aging performance, and facilitate storage and transportation

Active Publication Date: 2019-03-19
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The UV absorber used in this method is prone to loss problems such as volatilization when mixed at high temperature, and the CeO 2 The compatibility between nanomaterials and asphalt is very poor, and segregation and stratification are prone to occur, which affects the performance of its anti-ultraviolet performance, and there is a limit to improving the anti-ultraviolet aging performance of asphalt mixture.
[0006] In summary, the prior art simply adds nanopowders or light stabilizers to asphalt, which will lead to segregation and delamination of nanopowders and asphalt, as well as physical migration and volatilization of light stabilizers, resulting in UV-resistant limited aging performance

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
  • A kind of anti-ultraviolet aging asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Dissolve 29.14 parts by weight of polyvinyl ether-polypropylene ether-polyvinyl ether triblock copolymer (P123) and 168.40 parts by weight of concentrated hydrochloric acid (12mol / L) in 1000 parts by weight of water, stirring continuously until completely dissolved, Measure 35 parts by weight of ethyl orthosilicate and 50 parts by weight of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6 Add (1H,3H,5H)-triketone to the above solution, while stirring continuously at 40°C for 24h, then put it into a reaction kettle, and let it stand in an oven at 100°C for 48h to complete the co-hydrolysis and polycondensation reactions, filter and water Wash, dry at 100°C for 12 hours, add to a mixed solution of 600 parts by weight of absolute ethanol and 10 parts by weight of concentrated hydrochloric acid (12mol / L), heat and reflux at 80°C for 8 hours, then wash with water until neutral, and wash with ethanol at 100°C After drying for 8 hours, about 37.4 parts by weight ...

Embodiment 2

[0038] (1) Dissolve 29.14 parts by weight of polyvinyl ether-polypropylene ether-polyvinyl ether triblock copolymer (P123) and 168.40 parts by weight of concentrated hydrochloric acid (12mol / L) in 1000 parts by weight of water, stirring continuously until completely dissolved, Measure 45 parts by weight of ethyl orthosilicate and 40 parts by weight of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6 Add (1H,3H,5H)-triketone to the above solution, while stirring continuously at 40°C for 20h, then put it into a reaction kettle, let it stand in an oven at 100°C for 48h, suction filter after cooling, wash with water, and dry at 100°C After 12 hours, add it to a mixed solution of 540 parts by weight of absolute ethanol and 9 parts by weight of concentrated hydrochloric acid (12mol / L), heat and reflux at 80°C for 8h, then wash with water until neutral, wash with ethanol, and dry at 100°C for 8h to obtain About 34.8 parts by weight organic-inorganic composite material.

[...

Embodiment 3

[0041](1) Dissolve 31 parts by weight of polyvinyl ether-polypropylene ether-polyvinyl ether triblock copolymer (P123) and 160 parts by weight of concentrated hydrochloric acid (12mol / L) in 1000 parts by weight of water, and keep stirring until completely dissolved, Measure 55 parts by weight of ethyl orthosilicate and 30 parts by weight of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6 Add (1H,3H,5H)-triketone to the above solution, while stirring continuously at 40°C for 18h, then put it into a reaction kettle, put it in an oven at 100°C for 36h, suction filter after cooling, wash with water, and dry at 100°C After 12 hours, add it to a mixed solution of 480 parts by weight of absolute ethanol and 8 parts by weight of concentrated hydrochloric acid (12mol / L), heat and reflux at 80°C for 8h, then wash with water until neutral, wash with ethanol, and dry at 100°C for 8h to obtain About 32.2 parts by weight organic-inorganic composite material.

[0042] (2) Add 1.5...

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
penetrationaaaaaaaaaa
UV radiationaaaaaaaaaa
Login to View More

Abstract

The invention discloses anti-ultraviolet aging asphalt and a preparation method thereof. The modified asphalt comprises the following raw materials by weight: 100 parts of matrix asphalt, and 1.0-5.0 parts of an organic-inorganic composite material, wherein the organic-inorganic composite material is formed by the cohydrolysis and polycondensation of tetraethoxysilane and organosilane containing a triazinetrione group. The used organic-inorganic composite material has the characters of both the organic group and the inorganic nano-material, and has the good compatibility with the asphalt. The preparation method is capable of introducing the organic group reaction to the organic-inorganic composite material, preventing the physical migration or volatilization loss of the organic-inorganic composite material. The inorganic monox part of the organic-inorganic composite material has the stronger shielding effect to the ultraviolet ray, and the organic group part has the functions, such as ultraviolet ray absorption and free radical capture. Both functions are mutually coordinated, and affected, so the anti-ultraviolet aging performance of the asphalt is greatly improved.

Description

technical field [0001] The invention relates to a modified asphalt and a preparation method thereof, in particular to an anti-ultraviolet aging asphalt for roads and a preparation method thereof. Background technique [0002] Asphalt pavement has excellent road performance and comfortable driving performance, and is the main pavement structure form of highway construction. However, under ultraviolet radiation, asphalt will undergo a series of physical and chemical changes, resulting in hardening and brittleness, smaller failure strain, easy cracking, and gradual aging, which seriously affects the performance of asphalt. Especially in areas with strong ultraviolet rays, the service life of asphalt pavement is greatly shortened. [0003] In order to solve the UV aging problem of asphalt pavement, nano powders such as titanium dioxide powder, CeO 2 Powder, etc.; light absorbers, such as benzophenones and hindered amine derivatives, can also be added. [0004] CN103880336A di...

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): C08L95/00C08L83/08C08K3/36C08G77/26
CPCC08G77/26C08K2201/011C08L95/00C08L2201/08C08L83/08C08K3/36
Inventor 宋乐春宁爱民李志军陈保莲范思远张静程国香
Owner CHINA PETROLEUM & CHEM CORP