A kind of sbs modified asphalt additive and sbs modified asphalt

A technology of modified asphalt and additives, applied in the field of SBS modified asphalt additives and SBS modified asphalt, can solve the problems of stability, ductility and aging ductility not up to standard, and achieve improved storage stability and improved ductility. The effect of reducing the viscosity of asphalt

Active Publication Date: 2021-02-12
SUZHOU TOPOLINE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, judging from the current use situation, the most likely quality problems of SBS modified asphalt are that the stability, ductility and aging ductility are not up to standard.

Method used

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  • A kind of sbs modified asphalt additive and sbs modified asphalt
  • A kind of sbs modified asphalt additive and sbs modified asphalt

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preparation example Construction

[0021]The present invention also provides a preparation method of SBS modified asphalt additives. The preparation method includes: heating 50-100 parts of white oil at a temperature of 50°C to 70°C, so that the viscosity of the white oil becomes thinner, which is more beneficial to other raw materials Mixing of ingredients; adding 30-50 parts of modified sulfur, 0.5-2 parts of antioxidant, 1-5 parts of suspending aid, and 1-5 parts of plasticizer, stirring and mixing uniformly to obtain SBS modified asphalt additive. Among them, the order of addition of the raw material components of 30-50 parts of modified sulfur, 0.5-2 parts of antioxidant, 1-5 parts of suspension aid, and 1-5 parts of plasticizer is not particularly limited.

[0022]In a preferred embodiment, the modified sulfur includes the following raw material components in parts by mass: 5-10 parts aluminum hydroxide, 5-10 parts magnesium hydroxide, 50-200 parts water, 50-100 parts sulfur, 5-10 parts Polymer wax emulsion, 0.1 t...

Embodiment 1

[0031]Mix 5 parts of 2000 mesh aluminum hydroxide, 5 parts of 2000 mesh magnesium hydroxide and 100 parts of water to prepare an inorganic powder suspension; add 0.3 part of silane coupling agent, grind to 15 μm, and disperse uniformly to obtain an inorganic powder suspension; Add 5 parts of oxidized polyethylene wax emulsion to the inorganic powder suspension and stir for 30 minutes; then add 50 parts of 200 mesh industrial sulfur and stir for 60 minutes to obtain an inorganic powder / polymer wax / sulfur mixture. The above mixture is dried and dehydrated at 80°C, crushed and sieved (200 mesh) to obtain modified sulfur.

[0032]Heat 50 parts of 100# industrial white oil to 50°C, add 0.5 parts of antioxidant 1010, 2 parts of mineral oil emulsifier, 2 parts of dioctyl phthalate, 30 parts of modified sulfur prepared above, and stir for 30 minutes , Stir evenly to obtain the SBS modified asphalt additive of this embodiment.

Embodiment 2

[0034]Mix 8 parts of 3000 mesh aluminum hydroxide, 8 parts of 4000 mesh magnesium hydroxide and 200 parts of water to form an inorganic powder suspension; add 1 part of titanate coupling agent, grind to 13μm, and disperse uniformly to obtain an inorganic powder suspension Add 10 parts of oxidized polyethylene wax emulsion to the inorganic powder suspension and stir for 60 minutes; then add 100 parts of 300 mesh industrial sulfur and stir for 120 minutes to obtain an inorganic powder / polymer wax / sulfur mixture. The above mixture is dried and dehydrated at 80°C, crushed and sieved (200 mesh) to obtain modified sulfur.

[0035]Heat 100 parts of 100# industrial white oil to 60°C, add 2 parts of antioxidant 1076, 5 parts of mineral oil emulsifier, 5 parts of dioctyl maleate, and 50 parts of modified sulfur prepared above, stir for 60 minutes, Stir uniformly to obtain the SBS modified asphalt additive of this embodiment.

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Abstract

The invention relates to the technical field of asphalt materials, and specifically discloses an SBS modified asphalt additive and SBS modified asphalt. The SBS modified asphalt additive of the present invention comprises the following raw material components in parts by mass: 30-50 parts of modified sulfur, 50-100 parts of white oil, 0.5-2 parts of antioxidant, 1-5 parts of suspension aid, 1 ~5 parts plasticizer. The SBS modified asphalt additive of the present invention is added to the SBS modified asphalt, which can significantly improve the storage stability, ductility and aging ductility of the SBS modified asphalt.

Description

Technical field[0001]The invention relates to the technical field of asphalt materials, in particular to an SBS modified asphalt additive and SBS modified asphalt.Background technique[0002]With the increase in traffic volume, heavy loads and overloads continue to increase, coupled with climate change, hot weather has increased, and the performance requirements of asphalt pavements have also been continuously improved. It is required to improve the resistance to rutting at high temperatures and cracking at low temperatures to extend the service life . At present, ordinary asphalt has been difficult to meet the requirements, and asphalt needs to be modified. SBS modified asphalt is the most widely used modified asphalt.[0003]SBS modified asphalt is a colloidal mill to grind SBS (styrene-butadiene-styrene triblock copolymer) resin into very fine particles. It is a temporarily stable system that is physically mixed with asphalt and is prone to segregation. The agent can effectively impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L53/02C08L91/06C08K13/06C08K9/10C08K3/06C08K3/22
CPCC08K2003/2224C08K2003/2227C08L91/06C08L95/00C08L2205/025C08L2205/035C08K13/06C08K9/10C08K3/06C08K3/22C08L53/02
Inventor 牛艳辉陈悬
Owner SUZHOU TOPOLINE TECH
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