Asphalt with high-temperature stability

A high-temperature stability, asphalt technology, applied in building insulation materials, building components, buildings, etc., can solve the problems of poor compatibility and high cost, and achieve the effect of excellent aging resistance

Inactive Publication Date: 2018-09-14
广东诚泰投资集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The third is to chemically modify SBS in advance to improve the compatibility between SBS and asphalt, but the cost of this process is generally high
The quality of SBS modified asphalt mainly depends on the compatibility of SBS and asphalt, but the asphalt produced by the prior art generally has poor compatibility. Therefore, there is an urgent need for a kind of asphalt, which is compatible with SBS Better, the obtained SBS modified asphalt has excellent high and low temperature performance and aging resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of high temperature stable bitumen, comprises the raw material of following mass fraction:

[0033] Base bitumen: 91 parts, SBS thermoplastic elastomer: 5 parts, triethylamine: 1 part, isooctyl stearate: 1 part, β-cyclodextrin: 1.2 parts, dicumyl peroxide: 0.6 parts, 2,3-Dimethyl-2,3-diphenylbutane: 0.2 parts.

Embodiment 2

[0035] A kind of high temperature stable bitumen, comprises the raw material of following mass fraction:

[0036] Base bitumen: 93 parts, SBS thermoplastic elastomer: 4 parts, triethylamine: 0.5 parts, isooctyl stearate: 0.7 parts, β-cyclodextrin: 1 part, dicumyl peroxide: 0.6 parts, 2,3-Dimethyl-2,3-diphenylbutane: 0.2 parts.

Embodiment 3

[0038] A kind of high temperature stable bitumen, comprises the raw material of following mass fraction:

[0039] Base bitumen: 95 parts, SBS thermoplastic elastomer: 2 parts, triethylamine: 0.6 parts, isooctyl stearate: 0.8 parts, β-cyclodextrin: 0.8 parts, dicumyl peroxide: 0.6 parts, 2,3-Dimethyl-2,3-diphenylbutane: 0.2 parts.

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PUM

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Abstract

The invention provides asphalt with high-temperature stability. The asphalt comprises, by weight, 91-96 parts of matrix asphalt, 2-5 parts of SBS (styrene-butadiene-styrene) thermoplastic elastomers,1-2 parts of dispersing auxiliaries, 0.5-1.2 parts of cyclodextrin, 0.4-0.8 part of oxidation-reduction initiators and 0.1-0.3 part of graft catalysts. The dispersing auxiliaries comprise alkaline organic matters and ester organic matters. The asphalt has the advantages that the added cyclodextrin is used as a graft material/cross-linking agent, accordingly, the compatibility of SBS and the matrixasphalt can be improved, and the produced asphalt is excellent in high and low-temperature stability and aging resistance.

Description

technical field [0001] The invention relates to the technical field of asphalt processing, in particular to high-temperature stable asphalt. Background technique [0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is liquid with a black surface and is soluble in carbon disulfide. Asphalt can be divided into coal tar pitch, petroleum pitch and natural pitch. Among them, coal tar pitch is a by-product of coking, petroleum pitch is the residue after crude oil distillation, and natural pitch is stored underground, and some form ore layers or accumulate on the surface of the earth's crust. Asphalt is mainly used in coatings, plastics, rubber and other industries as well as paving roads. [0003] A single asphalt material has poor stability, and it is generally necessary to add styrene-butadiene-styrene triblock copolymer (SBS thermoplastic e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08L5/16C08K5/101C08K5/103C08K5/17C08J3/24
CPCC08J3/246C08J2395/00C08J2453/02C08L95/00C08L2201/08C08L2205/03C08L2205/08C08L2312/00C08L53/02C08L5/16C08K5/101C08K5/103C08K5/17
Inventor 邓德鑫邓志明
Owner 广东诚泰投资集团有限公司
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