Application of polysilsesquioxane with organic function groups to asphalt modifier

A polysilsesquioxane and organic functional group technology, applied in building components, building insulation materials, buildings, etc., can solve the problems of unsatisfactory improvement of asphalt performance, limitation of asphalt performance, difficulty in dispersion modification, etc., and achieve the modification effect. Obvious, small dosage, good effect of change

Inactive Publication Date: 2017-02-15
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There have been many studies on nanomaterial modified asphalt, and the most researched is inorganic nanopowder materials, mainly focusing on inorganic oxide nanopowder materials, including silicon oxide, aluminum oxide, zinc oxide, titanium dioxide and ferroferric oxide, etc. Its particle size is above 20 nanometers, and it is difficult to disperse and modify, which is unsatisfactory for the improvement of asphalt performance; the use of organic layered silicate intercalation to obtain two-dimensional sheet nanomaterial modified asphalt has low cost, and the asphalt The effect of performance improvement is good, but due to the large size of the flake plane, the further improvement of asphalt performance is limited

Method used

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  • Application of polysilsesquioxane with organic function groups to asphalt modifier
  • Application of polysilsesquioxane with organic function groups to asphalt modifier
  • Application of polysilsesquioxane with organic function groups to asphalt modifier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Add 1 gram of vinyl POSS into 10 grams of trichlorethylene, fully dissolve, add 0.02 grams of KH550, and 0.05 grams of benzoyl peroxide, 99 grams of asphalt, stir well, and carry out polymerization and solvent volatilization at 110 ° C to obtain POSS modified asphalt, the dynamic shear modulus of the POSS modified asphalt is shown in Table 2:

[0026] Table 2

[0027]

[0028] From the above results, it can be seen that the anti-rutting factor of POSS modified asphalt is greatly improved, and the elastic modulus is also increased, but lower than the increase in the anti-rutting factor, and the asphalt performance has been significantly modified.

Embodiment 2

[0030] Add 2.5 grams of vinyl POSS into 10 grams of trichlorethylene, fully dissolve, add 0.03 grams of KH550, and 0.07 grams of benzoyl peroxide, 97 grams of asphalt, stir well, and carry out polymerization and solvent volatilization at 120 ° C to obtain POSS modified asphalt, the dynamic shear modulus of the POSS modified asphalt is shown in Table 3:

[0031] table 3

[0032]

[0033] From the above results, it can be seen that the anti-rutting factor of POSS modified asphalt is greatly improved, and the elastic modulus is also increased, but lower than the increase in the anti-rutting factor, and the asphalt performance has been significantly modified.

Embodiment 3

[0035] Add 5 grams of vinyl POSS into 25 grams of trichlorethylene, fully dissolve, add 0.05 grams of KH550, and 0.07 grams of benzoyl peroxide, 97 grams of asphalt, stir well, and carry out polymerization and solvent volatilization at 120 ° C to obtain POSS modified asphalt, the dynamic shear modulus of the POSS modified asphalt is shown in Table 4:

[0036] Table 4

[0037]

[0038] From the above results, it can be seen that the anti-rutting factor of POSS modified asphalt is greatly improved, and the elastic modulus is also increased, but lower than the increase in the anti-rutting factor, and the asphalt performance has been significantly modified.

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Abstract

The invention relates to an application of polysilsesquioxane with organic function groups to an asphalt modifier. POSS with organic function groups is used as the asphalt modifier, usage amount of the modifier is small during modification of asphalt, and modification effects are obvious; the modification principle is simple, and different function groups can be added into POSS for modification according to different requirements of asphalt performances with flexibility.

Description

technical field [0001] The invention relates to the technical field of road engineering, in particular to a method for preparing a road asphalt nano-modified material. Background technique [0002] There have been many studies on nanomaterial modified asphalt, and the most researched is inorganic nanopowder materials, mainly focusing on inorganic oxide nanopowder materials, including silicon oxide, aluminum oxide, zinc oxide, titanium dioxide and ferroferric oxide, etc. Its particle size is above 20 nanometers, and it is difficult to disperse and modify, which is unsatisfactory for the improvement of asphalt performance; the use of organic layered silicate intercalation to obtain two-dimensional sheet nanomaterial modified asphalt has low cost, and the asphalt The effect of performance improvement is good, but due to the large size of the flake plane, the further improvement of asphalt performance is limited. Contents of the invention [0003] For the defects or deficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L83/07C08L83/04C08K5/544
CPCC08L95/00
Inventor 赵鹏冯雷白帆艾涛阎鑫徐鸥明王振军
Owner CHANGAN UNIV
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