A kind of anti-aging soluble rubber powder modified asphalt and preparation method thereof

A modified asphalt and solubility technology, applied in building components, building thermal insulation materials, construction and other directions, can solve the problems of insufficient compatibility of rubber powder in asphalt, high cost, long time consumption, etc., to extend life, reduce contact, The effect of reducing segregation

Active Publication Date: 2021-09-03
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of soluble rubber powder modified asphalt which is resistant to thermal oxygen aging and ultraviolet aging in order to overcome the defect that the soluble rubber powder in the above-mentioned prior art is easy to age during the preparation process and thus affect its road performance. and its preparation method to solve the problems of high temperature, long time consumption and high cost during the preparation of ordinary soluble rubber powder, and at the same time improve the problem of insufficient compatibility of rubber powder in asphalt

Method used

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  • A kind of anti-aging soluble rubber powder modified asphalt and preparation method thereof
  • A kind of anti-aging soluble rubber powder modified asphalt and preparation method thereof
  • A kind of anti-aging soluble rubber powder modified asphalt and preparation method thereof

Examples

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Effect test

Embodiment 1

[0054] This embodiment is a soluble rubber powder modified asphalt with excellent anti-aging performance, specifically a new type of soluble rubber powder modified asphalt that is resistant to thermo-oxidative aging and ultraviolet aging.

[0055] The soluble rubber powder modified asphalt with excellent aging resistance is prepared from the following raw materials in parts by weight:

[0056] 16 parts of 80 mesh rubber particles, 81 parts of petroleum asphalt, 1 part of antioxidant tris(2,4-di-tert-butylphenyl) phosphite, 1 part of light stabilizer 2-hydroxy-4-methoxybenzophenone , 0.5 parts of catalyst 4-(4-chlorophenyl)-4-thiazoline-2-thione, 0.5 parts of crosslinking agent 3-phenyl-2-thione-1,3-thiazoline-4-one, Wherein, the petroleum asphalt is a straight-run asphalt, the sum of the saturated content and the aromatic content in its components is between 50%, and the saturated content is less than 18%.

[0057] Prepare soluble rubber powder modified asphalt with excellent...

Embodiment 2

[0063] This embodiment is a soluble rubber powder modified asphalt with excellent anti-aging performance, specifically a new type of soluble rubber powder modified asphalt that is resistant to thermo-oxidative aging and ultraviolet aging.

[0064] Soluble rubber powder modified asphalt with excellent anti-aging performance is prepared from the following raw materials in parts by weight: 15 parts of 80-mesh rubber particles, 82 parts of petroleum asphalt, antioxidant tris(2,4-di-tert-butylphenyl ) ester 1 part, light stabilizer 2-hydroxy-4-methoxybenzophenone 1 part, catalyst 4-(4-chlorophenyl)-4-thiazoline-2-thione 0.5 part, crosslinking agent 0.5 parts of 3-phenyl-2-thione-1,3-thiazolin-4-one.

[0065] The preparation method is the same as in Example 1.

Embodiment 3

[0067] This example is a soluble rubber powder modified asphalt with excellent anti-aging performance, specifically a new soluble rubber powder modified asphalt that is resistant to thermo-oxidative aging and ultraviolet aging.

[0068] The soluble rubber powder modified asphalt with excellent aging resistance is prepared from the following raw materials in parts by weight:

[0069] 18 parts of 80 mesh rubber particles, 79 parts of petroleum asphalt, 1 part of antioxidant tris(2,4-di-tert-butylphenyl) phosphite, 1 part of light stabilizer 2-hydroxy-4-methoxybenzophenone , 0.5 part of catalyst 4-(4-chlorophenyl)-4-thiazoline-2-thione, 0.5 part of crosslinking agent 3-phenyl-2-thione-1,3-thiazoline-4-one.

[0070] The preparation method is the same as in Example 1.

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Abstract

The invention relates to an anti-aging soluble rubber powder modified asphalt, the raw material of which comprises the following components in parts by weight: 15-18 parts of rubber particles, 77-82 parts of petroleum asphalt, antioxidant tris(2,4 1-2 parts of di-tert-butylphenyl) ester, 1-2 parts of light stabilizer 2-hydroxy-4-methoxybenzophenone, catalyst 4-(4-chlorophenyl)-4-thiazoline- 0.1-1 part of 2-thione, 0.1-1 part of cross-linking agent 3-phenyl-2-thione-1, 3-thiazoline-4-one. Compared with the prior art, the present invention can significantly reduce the aging of the soluble rubber powder during the preparation process and significantly improve the road performance of the asphalt under the condition that other main road performance technical indicators of the asphalt are not reduced or not significantly reduced. With resistance to thermal oxidative aging and UV aging performance.

Description

technical field [0001] The invention relates to a proportioning and preparation method of modified asphalt, in particular to an anti-aging soluble rubber powder modified asphalt and a preparation method thereof. Background technique [0002] Rubber modified asphalt pavement is an economical and practical new pavement to deal with the growing number of waste tires. Processing waste tires into rubber powder and using rubber powder to modify the base asphalt can effectively improve the road performance of asphalt , and can make full use of waste rubber tires. [0003] Due to the large particle size of rubber particles, the compatibility with asphalt has been one of the hot issues that people have been paying attention to for a long time. Research at home and abroad shows that the use of high temperature desulfurization technology is an effective means to solve the compatibility problem of rubber powder and asphalt. The difference between this technology and the traditional ru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L95/00C08L21/00C08K5/00C08K5/132C08K5/526C08K5/47
CPCC08K2201/014C08L95/00C08L2201/08C08L21/00C08K5/00C08K5/132C08K5/526C08K5/47
Inventor 吕泉周璐黄卫东
Owner TONGJI UNIV
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