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Anti-aging soluble rubber powder modified asphalt and preparation method thereof

A modified asphalt, solubility technology, applied in building components, building insulation materials, construction, etc., can solve the problems of rubber powder in asphalt compatibility, high temperature, high cost, shorten the preparation time, prevent segregation, Excellent anti-aging effect

Active Publication Date: 2020-03-24
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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  • Anti-aging soluble rubber powder modified asphalt and preparation method thereof
  • Anti-aging soluble rubber powder modified asphalt and preparation method thereof
  • Anti-aging soluble rubber powder modified asphalt and preparation method thereof

Examples

Experimental program
Comparison scheme
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 with resistance to thermal oxidative aging and ultraviolet aging.

[0055] The soluble rubber powder modified asphalt with excellent anti-aging performance 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 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, Wherein, the petroleum asphalt is straight-run asphalt, the total content of saturated and aromatic components in its composition 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 with resistance to thermal oxidative aging and ultraviolet aging.

[0064] The 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 phosphite) ) 1 part of ester, 1 part of light stabilizer 2-hydroxy-4-methoxybenzophenone, 0.5 part of catalyst 4-(4-chlorophenyl)-4-thiazoline-2-thione, crosslinking agent 0.5 part of 3-phenyl-2-thione-1,3-thiazolin-4-one.

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

Embodiment 3

[0067] This embodiment is a kind of soluble rubber powder modified asphalt with excellent anti-aging performance, specifically a new type of soluble rubber powder modified asphalt with resistance to thermal oxidative aging and ultraviolet aging.

[0068] The soluble rubber powder modified asphalt with excellent anti-aging performance 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, and 0.5 part of crosslinking agent 3-phenyl-2-thione-1,3-thiazolin-4-one.

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

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Abstract

The invention relates to anti-aging soluble rubber powder modified asphalt which comprises the following components in parts by weight: 15-18 parts of rubber particles, 77-82 parts of petroleum asphalt, 1-2 parts of antioxidant tri (2, 4-di-tert-butylphenyl) phosphite, 1-2 parts of light stabilizer 2-hydroxy-4-methoxybenzophenone, 0.1-1 part of catalyst 4-(4-chlorphenyl)-4-thiazoline-2-thioketoneand 0.1-1 part of cross-linking agent 3-phenyl-2-thioketone-1, 3-thiazoline-4-ketone. Compared with the prior art, under the condition of ensuring that other main pavement performance technical indexes of the asphalt are not reduced or not remarkably reduced, the aging of the soluble rubber powder in the preparation process can be remarkably reduced, and the thermo-oxidative aging resistance and the ultraviolet aging resistance of the asphalt for pavements are remarkably improved.

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 cope with the increasing number of waste tires. The waste tires are processed into rubber powder, and the rubber powder is used to modify the base asphalt, which can effectively improve the road performance of the asphalt. , and can make full use of waste rubber tires. [0003] Due to the large particle size of rubber particles, the compatibility with asphalt is one of the hot issues that people have been concerned about. Research at home and abroad shows that the use of high temperature desulfurization technology is an effective means to solve the problem of compatibility between rubber powder and asphalt. The difference between this technology and the tra...

Claims

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Application Information

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Patent Type & Authority Applications(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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