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Carbonnano-tube reinforced epoxy asphalt composite material and preparation method of material

A carbon nanotube and epoxy asphalt technology, which is used in building thermal insulation materials, building components, buildings, etc., can solve the problems of poor slip resistance, easy aging, and reduced epoxy asphalt durability of epoxy asphalt pavement layers. To achieve the effect of improving thermal stability and anti-ultraviolet aging ability, improving dispersion and enhancing force

Inactive Publication Date: 2017-03-08
CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, in the application of bridge deck pavement, in order to improve the anti-seepage performance of the pavement layer, it is often easy to cause poor skid resistance of the epoxy asphalt pavement layer, which is difficult to meet the requirements of the steel bridge deck pavement layer for road performance , and epoxy resin is a high-molecular polymer. As a road pavement material, it needs to be exposed to sunlight for a long time, and it is easy to age, thereby reducing the durability of epoxy asphalt

Method used

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  • Carbonnano-tube reinforced epoxy asphalt composite material and preparation method of material
  • Carbonnano-tube reinforced epoxy asphalt composite material and preparation method of material
  • Carbonnano-tube reinforced epoxy asphalt composite material and preparation method of material

Examples

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Effect test

Embodiment 1

[0027] (1) Add 1 g of multi-walled carbon nanotubes prepared by chemical vapor catalytic cracking to 300 mL of concentrated sulfuric acid and concentrated nitric acid mixed acid prepared at a ratio of 3:1, stir with a magnetic stirrer for 15 min, and then use an ultrasonic instrument to Ultrasonic disperse for 30 min, then heat and reflux with microwave for 0.2 h, filter and rinse with deionized water after natural cooling, make the pH of the filtrate to neutral, dry and grind for later use;

[0028] (2) Add 1 g of the multi-walled carbon nanotubes obtained in step (1) into 200 mL of absolute ethanol, magnetically stir for 15 min, then ultrasonically oscillate for 15 min, then add 40 g of E128 epoxy resin under mechanical stirring, After heating and stirring in a constant temperature water bath at 50 °C and ultrasonically dispersing for 0.5 h, the composite of carbon nanotubes and epoxy resin was obtained after evaporating absolute ethanol;

[0029] (3) Heat 500 g of base asph...

Embodiment 2

[0033] (1) Add 3 g of single-walled carbon nanotubes prepared by chemical vapor catalytic cracking to 400 mL of concentrated sulfuric acid and concentrated nitric acid mixed acid prepared at a ratio of 3:1, stir with a magnetic stirrer for 30 min, and then use an ultrasonic instrument to Ultrasonic disperse for 20 min, then heat and reflux with microwave for 0.3 h, filter and rinse with deionized water after natural cooling, make the pH value of the filtrate to neutral, dry and grind for later use;

[0034] (2) Add 3 g of single-walled carbon nanotubes obtained in step (1) into 400 mL of absolute ethanol, magnetically stir for 30 min, then ultrasonically oscillate for 20 min, then add 120 g of E51 epoxy resin under mechanical stirring, After heating and stirring in a constant temperature water bath at 40 °C and ultrasonically dispersing for 0.8 h, the composite of carbon nanotubes and epoxy resin was obtained after evaporating absolute ethanol;

[0035] (3) Heat 800 g of base ...

Embodiment 3

[0040] (1) Add 5 g of multi-walled carbon nanotubes prepared by chemical vapor catalytic cracking to 500 mL of concentrated sulfuric acid and concentrated nitric acid mixed acid prepared at a ratio of 3:1, stir with a magnetic stirrer for 30 min, and then use an ultrasonic instrument to Ultrasonic disperse for 30 min, then heat and reflux with microwave for 0.5 h, filter and rinse with deionized water after natural cooling, make the pH value of the filtrate to neutral, dry and grind for later use;

[0041] (2) Add 5 g of the carbon nanotubes obtained in step (1) into 500 mL of absolute ethanol, stir magnetically for 20 min, then oscillate ultrasonically for 30 min, then add 200 g of E51 epoxy resin under mechanical stirring, and stir at 60 After heating and stirring in a constant temperature water bath at ℃ and ultrasonically dispersing for 0.5 h, the composite of carbon nanotubes and epoxy resin was obtained after evaporating absolute ethanol;

[0042] (3) Heat 1000 g of base...

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Abstract

The invention discloses a carbonnano-tube reinforced epoxy asphalt composite material and a preparation method of the material. The preparation method comprises the steps of using concentrated acid solution to modify the carbonnano-tube under the condition of microwave heating and reflux, conducting ultrasonic combination of the modified carbon nano-tube and epoxy resin in ethanol, after drying the ethanol by distillation, adding the combined carbon nano-tube and epoxy resin into melted asphalt substrate, adding curing agent, stirring to acquire the carbon nano-tube / epoxy resin composite material. The method not only is beneficial to overcome the bottleneck problems such as easy agglomeration of carbon nano-tube and inferior compatibility, and enhance the strengthening effect of the carbon nano-tube, but also uses no additive, has simple preparation process and low cost, therefore being beneficial for industrial production. The method provides an effective preparation method for the preparation of high performance road surface material.

Description

technical field [0001] The invention relates to a carbon nanotube reinforced epoxy asphalt composite material and a preparation method thereof, belonging to the field of pavement materials. Background technique [0002] Epoxy asphalt has excellent mechanical properties, high temperature stability and fatigue resistance, and has better performance than other asphalts currently used, and is widely used in long-span steel bridge deck pavement. At present, most of the bridge deck pavement materials used in my country are imported epoxy asphalt, and the cost of bridge deck pavement is relatively high. In addition, epoxy resin is a polar substance, while asphalt is a non-polar substance, the compatibility between the two is poor, and the brittleness of epoxy resin is high after curing, resulting in a decrease in ductility, thereby reducing the road use of epoxy asphalt materials. Performance, this problem has not been well resolved internationally. It is of great significance to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/00C08K9/02C08K9/00C08K7/24
CPCC08K2201/011C08L95/00C08L2201/08C08L63/00C08K9/02C08K9/00C08K7/24
Inventor 陈传盛钱国平张博文刘其城枚伟
Owner CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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