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Epoxy asphalt material for road-bridge and environment-friendly preparation method thereof

An epoxy asphalt material, road and bridge technology, applied in building insulation materials, roads, roads, etc., can solve the problems of methacrylic acid volatilization and sublimation, and achieve environmental friendliness, good flexibility, and excellent fatigue resistance Effect

Inactive Publication Date: 2008-09-03
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, in the production of domestic epoxy asphalt, small molecular compounds aimed at functional modification of the asphalt itself were introduced, which inevitably caused some environmental problems
For example, maleic anhydride is easy to sublimate, methacrylic acid is easy to volatilize, etc.

Method used

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  • Epoxy asphalt material for road-bridge and environment-friendly preparation method thereof
  • Epoxy asphalt material for road-bridge and environment-friendly preparation method thereof
  • Epoxy asphalt material for road-bridge and environment-friendly preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Example 1: Add 57 parts (mass, the same below) of petroleum asphalt (origin: Shanjiasi) heated to 90-120°C into the reactor, add 1.14 parts of maleic anhydride, heat up to 120-155°C, and wait for the pressure to stabilize , into N 2 , keep the total pressure at 0.25MPa, and after 4 hours of reaction, slowly release the pressure to 0.1MPa. Then gradually lower the temperature to 100-110°C, add 10 parts of polyethylene glycol (DC-4110, Ningwu Chemical Plant, Jurong City, Jiangsu Province; calculated based on the neutralization of completely residual functionalized asphalt modified small molecular compounds parts by mass; the same below), 1.2 parts of liquid hydroxyl-terminated polysiloxane (107 silicone rubber, 3000 cP, Shanghai Silicon Mountain Polymer Material Co., Ltd.), and then the temperature was programmed to 130-140 ° C for 1-3 hours. Then add 17.16 parts of oxalic acid, 5 parts of polyisobutylene succinic anhydride (average molecular weight: 5100, Changzhou Guan...

Embodiment 2

[0045] Example 2: Add 57.3 parts of petroleum asphalt (US Shell) heated to 90-120 ° C into the reactor, add 11.4 parts of maleic anhydride, heat up to 120-160 ° C, and after the pressure is stable, feed N 2 , keep the total pressure at 0.45MPa, and after 5 hours of reaction, slowly release the pressure to 0.1MPa. Then gradually lower the temperature to 100-110° C., add 2 parts of polypropylene glycol (DC-403, Ningwu Chemical Factory, Jurong City, Jiangsu Province), and program the temperature to 130-140° C. to react for 1-3 hours. Then add 15.13 parts of dimer acid (Zhejiang Yongzai Chemical Factory), 10 parts of adipic acid, 3 parts of polyisobutylene succinic anhydride (average molecular weight 2400, Changzhou Guanghui High-tech Chemical Co., Ltd.) that have been heated to 90-140 ° C in advance, 10 parts of polyazelaic anhydride (average molecular weight 1200, Changzhou Guanghui High-tech Chemical Co., Ltd.) and 0.57 parts of triethylamine were pre-mixed for 30 minutes and d...

Embodiment 3

[0046] Example 3: Add 68 parts of petroleum asphalt (US Shell) heated to 90-140°C into the reactor, add 8.2 parts of maleic anhydride, heat up to 230°C for reaction, and reflux with 80°C warm water at the same time, after reacting for 6 hours, then gradually Cool down to 100-110°C, add 3.2 parts of liquid hydroxyl-terminated polysiloxane (107 silicone rubber, 3000cP, Shanghai Silicon Mountain Polymer Material Co., Ltd.), program temperature rise to 130-140°C and react for 1-3 hours. Alkyd resin (brand 3370A, Jiangsu Sanmu Group Co., Ltd.) 14.4 parts, methyl nadic anhydride (Changzhou Guanghui High-Tech Chemical Co., Ltd.) 5 parts, polyglutaric anhydride (average molecular weight 1200, Changzhou Guanghui High-Tech Chemical Co., Ltd.) ) 7 parts, and 0.6 parts of diethylenetriamine were added to the reactor, stirred and mixed for 1 hour, and finally dispersed at high speed in the colloid mill to obtain part A; when in use, part A and part B (epoxy resin E -44) Raise the temperatu...

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Abstract

The invention provides an epoxy asphalt material for bridge and green preparation method, comprising A part and B part, wherein the weight constitute of the A part is: modified asphaltum with carboxyl or anhydride group 60-76 parts, monohydric alcohol or polyhydric alcohol 2-20 parts, aliphatic diprotic acid, dimer acid or alkyd resin 11-25 parts, fatty acid anhydride 10-25 parts, solidified promoter 0.05-0.65 parts; and the constitute of the B part is epoxy resin. The mass ratio of A and B part is 2.2:1-10:1. The epoxy resin modified asphalt material has excellent property with high intensity and good flexibility; provides corresponding operation time according to different requirement and adjust the operation time to satisfy the different performance requirement at will with good storage stability. The corresponding epoxy asphalt concrete has excellent high, low temperature performance and fatigue endurance, and the environment is friendly, suitable for occasion with higher requirement such as autoroute and bridge, and arterial street, bus stop and airfield path. The invention also provides a preparation method thereof.

Description

technical field [0001] The invention relates to a chemically modified asphalt, specifically a two-component thermosetting asphalt, which belongs to the technical field of new chemical materials for roads and bridges. Background technique [0002] Asphalt is commonly used as a paving and waterproofing material and is essentially a thermoplastic. This characteristic is manifested in the pavement paved with asphalt. Rutting is easy to appear on the pavement under heavy load in summer high temperature season, and temperature shrinkage cracks are easy to appear in winter cold season. With the improvement of road grade and the popularity of long-span steel box girder bridge The use of paving materials puts forward high requirements on the strength, deformation stability and fatigue durability of paving materials, and at the same time puts forward special requirements such as high cohesion and impermeability in terms of performance. As an important part of the bridge vehicle syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/00C08K5/05C08K5/09C08K5/17E01C7/00
Inventor 黄卫陈志明焦真亢阳贾辉邵利
Owner SOUTHEAST UNIV
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