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A kind of asphalt modifier with low temperature resistance and modified asphalt

A technology of modified asphalt and anti-low temperature, which is applied in the direction of building insulation materials, building components, buildings, etc. It can solve the problem of no composite material listed performance control indicators and physical properties, production material performance stability control air crash, low marketing value, etc. problems, to achieve the effect of large market promotion value, strong market promotion value, improvement of modification performance and flexibility

Active Publication Date: 2016-02-10
SILVER AGE ENG PLASTICS DONGGUAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition of the formula material is complex, and it is difficult to control the performance stability of the actual production material. At the same time, no specific performance control indicators and physical properties are listed for the composite material.
And the basic materials used are new materials, the product cost is high, and the marketing value is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Utilize following preparation method to prepare asphalt modifier:

[0064] Step 1: Mix 40 parts of polyethylene, 45 parts of waste rubber tire powder, 11 parts of bio-based filler, 0.1 part of ethylene bis stearic acid amide, 0.4 part of aromatic hydrocarbon, 0.1 part of tris(2,4-ditert-tert Butylphenyl) ester, 0.1 part of tetrakis [β-(3.5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and 0.4 part of toner were put into the powder tank and stirred evenly for 3 minutes. The stirring speed is 700r / min; it is conducive to the full mixing of materials and the subsequent processing and molding.

[0065] Step 2: The uniformly stirred material in step 1 is formed into a homogeneous melt through the plasticization, shearing, melting and other processes of the twin-screw extruder. The molding temperature is 150°C, and the vacuum degree during extrusion and granulation is -0.08~ -0.04MPa, screw speed is 380r / min; parameters such as temperature, speed and vacuu...

Embodiment 2

[0074] Utilize following preparation method to prepare asphalt modifier:

[0075] Step 1: Mix 10 parts of polyethylene, 75 parts of waste rubber tire powder, 10 parts of bio-based filler, 1.4 parts of ethylene bis stearic acid amide, 3 parts of waste engine oil, 0.1 part of tris(2,4-ditert- Butylphenyl) ester, 0.2 part of tetrakis [β-(3.5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and 0.3 part of toner were put into the powder tank and stirred evenly for 5 minutes. The stirring speed is 1000r / min; it is conducive to the full mixing of materials and is conducive to subsequent processing and molding.

[0076] Step 2: The uniformly stirred material in step 1 is formed into a homogeneous melt through the plasticization, shearing, melting and other processes of the twin-screw extruder. The molding temperature is 200°C, and the vacuum degree during extrusion and granulation is -0.08~ -0.04MPa, the screw speed is 450r / min; the temperature, speed and vacuum degr...

Embodiment 3

[0085] Utilize following preparation method to prepare asphalt modifier:

[0086] Step 1: 12 parts of polyethylene, 65 parts of waste rubber tire powder, 13 parts of bio-based filler, 2.2 parts of ethylene bis stearic acid amide, a mixture of 7 parts of waste engine oil and aromatic hydrocarbons, 0.3 parts of tris(2 , 4-di-tert-butylphenyl) ester, 0.2 parts of tetrakis [β-(3.5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester and 0.3 parts of toner were put into the powder tank in turn for uniform stirring, The stirring time is 7min, and the stirring speed is 600r / min; it is conducive to the full mixing of materials and the subsequent processing and molding.

[0087] Step 2: The uniformly stirred material in step 1 is formed into a homogeneous melt through the plasticization, shearing, melting and other processes of the twin-screw extruder. The molding temperature is 180°C, and the vacuum degree during extrusion and granulation is -0.08~ -0.04MPa, screw speed i...

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Abstract

The invention relates to the technical field of asphalt modification and in particular relates to an asphalt modifier with low-temperature resistance and modified asphalt. The asphalt modifier with low-temperature resistance comprises the following components in percentage by weight: 10-40 percent of polyethylene, 45-75 percent of waste rubber powder, 10-30 percent of biological base filler, 0.1-0.6 percent of antioxidant, 3.4-9.2 percent of lubricating agent and the balance of toner, wherein the biological base filler is dried filler powder consisting of lignin organic matters and silicate inorganic matters. The asphalt modifier has the capacity of improving the low-temperature resistance of asphalt and has independent physical indexes, the performance of the modifier is easily controlled, a single modifier finished product is prepared for market selection, the modification performance of the asphalt is improved, and the asphalt modifier is flexibly utilized; the prepared modified asphalt has the characteristics of cold resistance, high low-temperature resistance, high stability and low cost.

Description

technical field [0001] The invention relates to the technical field of asphalt modification, in particular to an asphalt modifier with low temperature resistance and modified asphalt. Background technique [0002] Asphalt roads are various types of road surfaces paved by mixing road asphalt materials into mineral materials. The asphalt binder improves the ability of paving aggregates to resist damage to the road surface caused by traffic and natural factors, making the road surface smooth, less dusty, impermeable and durable. Therefore, asphalt pavement is the most widely used high-grade pavement in road construction. However, pure asphalt pavement has poor high-temperature anti-rutting performance and poor low-temperature stability. Therefore, since the introduction of Austrian SBS modified asphalt technology in my country in 2000, 99% of expressway construction has adopted this asphalt modified technology. Asphalt modifier is a natural or synthetic organic or inorganic m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L53/02C08L21/00C08L23/06C08L97/00C08K13/02C08K3/34C08K5/526C08K5/103C08K5/20C08K5/01C08K3/06
Inventor 王海民彭志宏郑怀宇
Owner SILVER AGE ENG PLASTICS DONGGUAN
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