High viscosity asphalt modifier and preparation method thereof

A high-viscosity asphalt and modifier technology, applied in the field of asphalt modifiers, can solve the problems of increasing the decomposition and dissolution of elastomers, poor dispersion of elastomers, and high viscosity of petroleum resins, so as to improve high temperature performance and adhesion performance, Effect of improving solubility and decomposability

Inactive Publication Date: 2010-12-29
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] According to the analysis, the existing technologies have not yet fully solved the problems of poor dispersion and difficult dissolution of elastomers in asphalt. On the one hand, these technologies mainly use SBS, an elastomer that is poorly dispersed with asphalt and difficult to dissolve; in addition The petroleum resin used is also relatively viscous, which also increases the difficulty of the decomposition and dissolution of the elastomer in asphalt; finally, no other substances that degrade the viscosity of the system are added to improve the dissolution and decomposition effect of the entire system in asphalt

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5 and comparative example 1-4

[0021] Prepare high-viscosity asphalt modifier by the formula of table 1 weight part:

[0022] Raw material source:

[0023] SIS: produced by Kraton Company, model Kraton D-1161, the product specifications are as follows:

[0024] Specification

D-1161

proportion

0.92

Melt index (a)

g / 10min

12

hardness

Shoe A

37

300% modulus

psi

130

Tensile Strength

psi

3100

Elongation

％

1300

Solution viscosity (b)

cps

1200

oil content

％

0

Styrene content

％

15

Diblock content

％

19

[0025] Coumarone resin: produced by Henan Anyang Jinmaoxiang Company, with a softening point of 100°C

[0026] Oleic acid amide: produced by Jiangxi Weike Oleochemical Co., Ltd., the main indicators are as follows:

[0027] acid value

mgKOH / g

melting point

℃

iodine value

gl2 / 100g

Chroma

Haze...

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PUM

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Abstract

The invention discloses a high-viscosity asphalt modifier and preparation thereof, wherein, the mass proportion of the material composition and components of the high-viscosity asphalt modifier refers to that 100 proportion of SIS, 60-100 proportion of coumarone resin and 40-60 proportion of oleamide. The high-viscosity asphalt modifier of the invention modifies basic asphalt and has excellent dispersion and solubility, and moreover, modified asphalt being correspondingly prepared has better adhesion and high temperature property.

Description

technical field [0001] The invention relates to an asphalt modifier, in particular to a high-viscosity asphalt modifier. Background technique [0002] High-viscosity asphalt is currently mainly prepared by adding polymers to petroleum asphalt. Adding polymers to modify petroleum asphalt can significantly improve the high and low temperature performance of asphalt, and improve the high temperature anti-rutting and low temperature anti-cracking capabilities of asphalt pavement. However, due to the differences in molecular weight and viscosity between the polymer and the asphalt, it is difficult to disperse the polymer modified asphalt; in addition, due to the presence of styrene in the elastomer, it is difficult to dissolve in the asphalt, and it is difficult to disperse the polymer in the asphalt And dissolve, resulting in poor modification effect of polymer on asphalt, affecting the performance of modified asphalt. [0003] In order to solve the problems of difficult dispe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L53/02C08L45/02C08K5/20C08L95/00B29B9/00B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704B29C2948/92895
Inventor 黄卫东孙立军
Owner TONGJI UNIV
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