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A kind of sbs modified asphalt stabilizer

A technology of modified asphalt and stabilizer, which is applied in building components, building insulation materials, buildings, etc. It can solve the problems of insignificant effect of SBS modified asphalt and large amount of addition, so as to improve thermal storage stability, promote dispersion, Promote compatibility effect

Inactive Publication Date: 2019-02-22
WUXI HUATONG ASPHALT NEW TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to overcome the defects of existing asphalt stabilizers that the effect on SBS modified asphalt is not obvious, and the addition amount is relatively large, and provide a kind of SBS modified asphalt stabilizer

Method used

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  • A kind of sbs modified asphalt stabilizer
  • A kind of sbs modified asphalt stabilizer
  • A kind of sbs modified asphalt stabilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of SBS modified asphalt stabilizer, comprises each component of following parts by weight:

[0022]

[0023] Mix Yueyang 791SBS with SK70# base asphalt, grind it under the action of a shear colloid mill, add 0.40% of the SBS modified asphalt stabilizer of this example, and stir at 175°C for 2 hours; the results are shown in Table 1

[0024] The use effect of table 1 embodiment 1

[0025]

[0026]

Embodiment 2

[0028] A kind of SBS modified asphalt stabilizer, comprises each component of following parts by weight:

[0029]

[0030] Mix Yueyang 791SBS with SK70# base asphalt, grind it under the action of a shear colloid mill, add 0.2% of the SBS modified asphalt stabilizer of this example, and stir at 185°C for 1.5 hours; the results are shown in Table 2

[0031] The use effect of table 2 embodiment 2

[0032]

[0033]

Embodiment 3

[0035] A kind of SBS modified asphalt stabilizer, comprises each component of following parts by weight:

[0036]

[0037] Mix Yueyang 791SBS with SK70# matrix asphalt, grind it under the action of a shear colloid mill, add 0.3% of the SBS modified asphalt stabilizer of this example, and stir at 180°C for 1.8 hours; the results are shown in Table 3

[0038] The use effect of table 3 embodiment 3

[0039]

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Abstract

The invention discloses a SBS modified asphalt stabilizer, which comprises the following components in parts by weight: 20-30 parts of vulcanization accelerator TMTD, 10-15 parts of stearic acid 1801, 10-20 parts of antioxidant 2246, 20-30 parts of sulfur, 10-15 parts of heat stabilizer, and 10-15 parts of light stabilizer. After the SBS and asphalt are mixed and ground under the action of a shear colloid mill, the SBS modified asphalt stabilizer is added and stirred at 175°C to 185°C for 1.5 to 2 hours. The SBS modified asphalt stabilizer of the present invention can promote the compatibility of SBS and base asphalt, reduce the amount of SBS added; can improve the thermal storage stability of SBS modified asphalt, prevent the occurrence of segregation; can increase the content of aromatic components, Improve the compatibility of base asphalt and SBS.

Description

technical field [0001] The invention relates to a modified asphalt additive, in particular to a SBS modified asphalt stabilizer. Background technique [0002] With the development of my country's highway transportation, especially the rapid development of high-grade highways, the number of asphalt pavements is increasing and the grade is constantly improving. Judging from the use of expressways at home and abroad, SBS modified asphalt is generally used to auxiliary pavement. SBS (this ethylene-butadiene-styrene block copolymer) is a high molecular polymer, which has both rubber It has high elasticity and has the thermoplastic properties of resin. Under the action of high-speed shear colloid mill, SBS and asphalt can be mixed in asphalt evenly with micron particle size through physical mosaic mixing and mutual infiltration and adsorption, which becomes a kind of modified asphalt. [0003] Since SBS and asphalt are a physical reaction process, the modified asphalt finished t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L53/02C08K13/02C08K5/09C08K3/06
CPCC08K3/06C08K5/09C08K13/02C08L95/00C08L2201/08C08L53/02
Inventor 黄裕沪
Owner WUXI HUATONG ASPHALT NEW TECH DEV
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