SBS modified asphalt stabilizer and SBS modified asphalt

A technology of modified asphalt and stabilizer, applied in the field of SBS modified asphalt stabilizer and SBS modified asphalt, can solve the problems of low production efficiency, long product development time, low asphalt ductility, etc.

Pending Publication Date: 2021-02-02
SHANDONG JINGBO PETROCHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing SBS modified asphalt has low ductility after aging, and the development time of the product is long, and the production efficiency is low

Method used

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  • SBS modified asphalt stabilizer and SBS modified asphalt
  • SBS modified asphalt stabilizer and SBS modified asphalt
  • SBS modified asphalt stabilizer and SBS modified asphalt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The base asphalt (Haiyun No. 70 asphalt) was heated to 170°C, aromatic oil and YH-791HSBS were added, and the shearing machine was used for high-speed shearing at a speed of 4000rpm for 30min, then the compound stabilizer was added, and the mixture was stirred at 300rpm for 4h.

Embodiment 2

[0053] Heat the base asphalt (Haiyun No. 70 asphalt) to 170°C, add three-line reduced wax oil, YH-791HSBS, use a shearing machine, shear at a high speed of 4000rpm for 30min, then add the compound stabilizer, stir at 300rpm for 4h .

Embodiment 3

[0055] The base asphalt (Haiyun No. 70 asphalt) was heated to 170°C, aromatic oil and 4303SBS were added, and the shearing machine was used for high-speed shearing at 4000rpm for 30min, then the compound stabilizer was added, and the mixture was stirred at 300rpm for 4h.

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PUM

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Abstract

The invention provides an SBS modified asphalt stabilizer. The SBS modified asphalt stabilizer comprises the following components in parts by weight: 60 to 80 parts of sulfur, 5 to 10 parts of an accelerant, 5 to 10 parts of zinc oxide, 0 to 10 parts of an antioxidant, and 10 to 40 parts of a filling dispersant, wherein the sulfur is a sulfur byproduct obtained by treating catalytic cracking acidgas in a refinery plant, the content of S in the sulfur is greater than 99.0%, the balance is impurities of a desulfurization solution, and the impurities of the desulfurization solution are one or more of sodium sulfate, sodium sulfite, sodium carbonate and sodium bicarbonate. According to the invention, the ductility index and the anti-aging ability of the SBS modified asphalt after aging can beimproved, the development time of the product can be shortened, and the attenuation of the ductility index along with time can be effectively inhibited. In addition, the stabilizer can effectively improve the mechanical properties of the SBS modified asphalt.The invention also provides the SBS modified asphalt.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and particularly relates to an SBS modified asphalt stabilizer and SBS modified asphalt. Background technique [0002] SBS modified asphalt takes base asphalt as raw material, adds a certain proportion of SBS modifier, and uniformly disperses SBS in the asphalt by shearing, stirring and other methods, and at the same time, adds a certain proportion of exclusive stabilizer to form SBS blending Material, using the good physical properties of SBS to modify the asphalt. [0003] SBS belongs to styrene thermoplastic elastomer, which is a styrene-butadiene-styrene triblock copolymer. It is a continuous phase, and polystyrene is a dispersed phase, so that it has two glass transition temperatures, the first glass transition temperature (Tg1) is -88 ~ -83 ℃, and the second glass transition temperature (Tg2) is At 90°C, between Tg1 and Tg2, the end groups of polystyrene gather together to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L53/02C08K3/06C08K5/40C08K3/22C08K3/04C08K5/134C08K13/02
CPCC08L95/00C08K2003/2296C08K2201/014C08L2201/08C08L53/02C08K3/06C08K5/40C08K3/22C08K3/04C08K5/1345C08K13/02
Inventor 金萍祁聪栾波刘建伟张红娟张文慧
Owner SHANDONG JINGBO PETROCHEM
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