High-performance modified asphalt and preparation method thereof

A modified asphalt, high-performance technology, applied in the direction of building components, building insulation materials, construction, etc., can solve problems such as difficult to meet, and achieve the effect of improved performance, uniform dispersion, and good stability

Inactive Publication Date: 2017-05-31
漳州新立基沥青有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional modified asphalt effect performance

Method used

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  • High-performance modified asphalt and preparation method thereof
  • High-performance modified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0018] Example 1

[0019] A high-performance modified asphalt has the following components by weight: 82 parts by weight of asphalt, 3.5 parts of styrene-butadiene-styrene copolymer (SBS), vinyl bis-stearin Amide (EBS) 1.8 parts, vulcanizing agent 0.6 parts, antioxidant 1.2 parts, methyl ethyl ketone 3 parts, antioxidant 2.4 parts, methyl phenol phenolic resin 1.7 parts, epoxy vegetable oil 0.7 parts, Propionic acid 2.8 parts , 1.5 parts of nickel acetylacetonate, 1.2 parts of dibutyl ester; 2.7 parts of pentaerythritol stearate.

[0020] A preparation method of high-performance modified asphalt, which comprises the following steps:

[0021] (1) Select the above-mentioned raw materials and their parts by weight for subsequent use;

[0022] (2) Put the base asphalt into an asphalt tank with a stirring device and heat it to 175°C, turn on the stirring device and add 1.8 parts of EBS;

[0023] (3) 2.7 parts of SBS and pentaerythritol stearate were added to the heated base as...

Example Embodiment

[0028] Example 2

[0029] A high-performance modified asphalt has the following components by weight: 70 parts of asphalt, 3 parts of styrene-butadiene-styrene copolymer (SBS), vinyl bis-stearin 0.01 part of amide (EBS), 0.2 part of vulcanizing agent, 0.1 part of antioxidant, 2 parts of methyl ethyl ketone, 2 parts of antioxidant, 1.2 parts of methyl phenolic phenolic resin, 0.5 part of epoxy vegetable oil, 3.2 parts of propionic acid , 1 part of nickel acetylacetonate, 1 part of dibutyl ester; 1.5 part of pentaerythritol stearate.

[0030] A preparation method of high-performance modified asphalt, which comprises the following steps:

[0031] (1) Select the above-mentioned raw materials and their parts by weight for subsequent use;

[0032] (2) Put the base asphalt into an asphalt tank with a stirring device and heat it to 165°C, turn on the stirring device and add 0.01 part of EBS;

[0033] (3) 1.5 parts of SBS and pentaerythritol stearate were added to the heated base ...

Example Embodiment

[0038] Example 3

[0039] A high-performance modified asphalt has the following components by weight: 100 parts of asphalt, 7 parts of styrene-butadiene-styrene copolymer (SBS), vinyl bis-stearin 2 parts of amide (EBS), 1 part of vulcanizing agent, 1.5 parts of antioxidant, 4 parts of methyl ethyl ketone, 3 parts of antioxidant, 2.5 parts of methyl phenol type phenolic resin, 1 part of epoxy vegetable oil, 4 parts of propionic acid , 3 parts of nickel acetylacetonate, 3 parts of dibutyl ester; 3 parts of pentaerythritol stearate.

[0040] A preparation method of high-performance modified asphalt, which comprises the following steps:

[0041] (1) Select the above-mentioned raw materials and their parts by weight for subsequent use;

[0042] (2) Put the base asphalt into an asphalt tank with a stirring device and heat it to 180°C, turn on the stirring device and add 2 parts of EBS;

[0043] (3) 3 parts of SBS and pentaerythritol stearate were added to the heated base asphal...

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Abstract

The invention provides high-performance modified asphalt, consisting of the following raw materials in parts by weight: 70-100 parts of asphalt, 3-7 parts of a styrene-butadiene-styrene copolymer (SBS), 0.01-2 parts of ethylene bis-stearamide (EBS), 0.1-1 part of a vulcanizing agent, 0.1-1.5 parts of an antioxidant, 2-4 parts of methyl ethyl ketone, 2-3 parts of an anti-aging agent, 1-2.5 parts of methyl phenol type phenolic resin, 0.5-1 part of epoxidized vegetable oil, 2-4 parts of propyl acetic acid, 1-3 parts of nickel acetylacetonate, 1-3 parts of dibutyl ester, and 1-3 parts of pentaerythritol tetrastearate. The high-performance modified asphalt provided by the invention has excellent high-temperature stability, salt fog resistance and ageing resistance, and the high-temperature viscosity of the modified asphalt can be reduced; and the modified asphalt meets a high-viscosity modification index requirement, and can be applied to special occasions including OGFC (Open Graded Friction Course) drainage asphalt pavements, heavy-loaded traffic road asphalt pavements and the like.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a high-performance modified asphalt. Background technique [0002] It is well known that asphalt pavement is prone to high-temperature rutting, fatigue and low-temperature cracking. At present, high-molecular polymers such as SBS are usually added to ordinary asphalt to improve the high-temperature and anti-aging properties of asphalt products. However, with global warming, especially the increase in high temperature weather in the southern region, many engineering projects use low-grade asphalt and require the penetration of base asphalt to be no more than 70 (0.1mm), and the amount of SBS is required to be above 5% after modification. Control below 55 (0.1mm). The viscosity of SBS modified asphalt increases at 135°C and the viscosity often exceeds or approaches the specification and is not more than 3.0Pa.s. The addition of a large amount of SBS polymer makes the dispersion an...

Claims

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Application Information

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IPC IPC(8): C08L95/00C08L53/02C08L61/08C08L91/00C08K5/00C08K5/20C08K5/103C08K5/09C08K5/07
CPCC08L95/00C08K2201/014C08L2201/08C08L2205/035C08L53/02C08L61/06C08L91/00C08K5/00C08K5/20C08K5/103C08K5/09C08K5/07
Inventor 朱勇进
Owner 漳州新立基沥青有限公司
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