Organic montmorillonite modified epoxy asphalt material and preparation method thereof

A technology of epoxy asphalt materials and organic montmorillonite, which is applied in building insulation materials, building components, buildings, etc., can solve problems such as rutting, cracks or looseness, violent sulfur vulcanization reaction, and difficult operation, so as to improve compatibility , low price, and the effect of reducing temperature sensitivity

Inactive Publication Date: 2014-12-17
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vulcanization reaction of sulfur is violent, and it is difficult to control and operate in actual construction.
Commonly used modifiers such as SBS, SBR, WPE, etc. are thermoplastic modifiers, which are prone to rutting, cracks or looseness under long-term heavy traffic pressure

Method used

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  • Organic montmorillonite modified epoxy asphalt material and preparation method thereof
  • Organic montmorillonite modified epoxy asphalt material and preparation method thereof
  • Organic montmorillonite modified epoxy asphalt material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Add 100 parts (mass parts, 200g, the same below) of molten petroleum asphalt (Maoming Petrochemical Donghai brand 90#) at 150 °C to the reaction vessel, then lower the temperature to 120 °C, add 16 parts of tung oil anhydride and 30 parts of oxalic acid , 10 parts of epoxy asphalt compatibilizer, stirred at 500 r / min for 30 min, and finally added 0.6 parts of tertiary amine accelerator DMP-30, and continued to stir for 15 min to make epoxy asphalt A component.

[0043] Mix component A heated to 140 °C and component B epoxy resin preheated to 70 °C at a mass ratio of 4.0:1 for 15 minutes, and then place it at 140 °C for 4 hours to obtain Epoxy asphalt material, its fluorescence micrograph as image 3 As shown, asphalt does not fluoresce and shows a black phase, and the epoxy resin curing system shows a white phase under blue light irradiation, and the dispersion of epoxy resin in the main phase formed by asphalt is not uniform.

[0044]

Embodiment 2

[0046] Add 100 parts of molten petroleum pitch (US Shell 70#) at 170 °C to the reaction vessel, add 1 part of organic montmorillonite (Zhejiang Fenghong DK3 type), and start the shear emulsification mixer at 3000 r / min for 2 h. Then adjust the temperature to 130 ℃, add 16 parts of methyl tetrahydrophthalic anhydride, 36 parts of sebacic acid, 24 parts of epoxy asphalt compatibilizer, stir at 500 r / min for 30 min, and finally add 0.4 parts of tertiary amine accelerator DMP-30, continue to stir for 15 minutes to make epoxy asphalt A component.

[0047] Mix component A heated to 150 °C and component B epoxy resin preheated to 75 °C at a mass ratio of 4.4:1 for 30 min, and then place it at 150 °C for 4 h to obtain Organic montmorillonite modified epoxy asphalt material, its fluorescence micrograph is as follows Figure 4 As shown, the distribution of epoxy resin is relatively uniform and the size becomes larger, indicating that the addition of organic montmorillonite improves the...

Embodiment 3

[0050] Add 100 parts of molten coal tar pitch (Shanxi Hengde Chemical Co., Ltd. 70#) at 140 °C to the reaction vessel, add 2 parts of organic montmorillonite (Zhejiang Fenghong DK1N type), and start the shear emulsification mixer at 3000 r / min. Cut for 2 h. Then adjust the temperature to 120 °C, add 12 parts of methyl hexahydrophthalic anhydride, 25 parts of adipic acid, 20 parts of epoxy asphalt compatibilizer, stir at 500 r / min for 30 min, and finally add 0.3 parts of imidazole accelerator 2 -Ethyl-4-methylimidazole, and continue to stir for 15 min to make epoxy asphalt A component.

[0051] Mix component A heated to 130 °C and component B epoxy resin preheated to 80 °C at a mass ratio of 5.3:1 for 20 min, and then place it at 130 °C for 4 h to obtain Organic montmorillonite modified epoxy asphalt material, its fluorescence micrograph is as follows Figure 5 As shown, the material has obvious phase inversion phenomenon, and the black asphalt is dispersed in the cross-linke...

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Abstract

The invention discloses an organic montmorillonite modified epoxy asphalt material and a preparation method thereof. The epoxy asphalt material comprises components A and B in a mass ratio of (3.6-6.0) to 1, wherein the component A comprises the following substances in parts by mass: 100 parts of matrix asphalt, 10-20 parts of an anhydride curing agent, 25-42 parts of aliphatic dicarboxylic acid, 10-30 parts of an epoxy asphalt compatilizer, 0.3-1.0 part of a curing accelerator and 0-6 parts of organic montmorillonite; the component B is epoxy resin. The material disclosed by the invention has a good high-low temperature mechanical performance, and organic montmorillonite can be used for enhancing the strength of the epoxy asphalt material and improving the high-temperature stability and anti-aging performance of the epoxy asphalt material. The material disclosed by the invention can be used for paving materials of roads and bridges and used for steel bridge panels, expressways and airfield runways and the like.

Description

technical field [0001] The invention relates to a modified asphalt material and a preparation method thereof, in particular to an organic montmorillonite modified epoxy asphalt material and a preparation method thereof. [0002] Background technique [0003] Petroleum asphalt is a thermoplastic material with abundant resources and low price. It is a heavy product obtained by processing natural crude oil through various refining processes. It is widely used in pavement of roads and bridges because of its excellent road performance. However, because the mechanical properties of matrix asphalt are highly sensitive to temperature, it is easy to become brittle at low temperature, easy to flow at high temperature, and its elasticity and aging resistance are also poor. It is difficult to meet the growing huge traffic pressure by direct use. Therefore, people often add various modifiers with excellent performance and moderate price to asphalt to improve the performance of asphalt a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/02C08L63/00C08K9/04C08K3/34C08G59/42C08G59/40C08G59/14
Inventor 肖新颜晏英
Owner SOUTH CHINA UNIV OF TECH
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