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High-thermosetting epoxy asphalt material and preparation method thereof

A technology of epoxy asphalt material and modified asphalt, which is used in building thermal insulation materials, chemically processing tar asphalt/petroleum asphalt/natural asphalt, building components, etc., which can solve traffic restrictions and affect the normal use of epoxy asphalt materials, etc. problems, to achieve the effect of small traffic impact, high strength and good flexibility

Inactive Publication Date: 2011-02-16
JURONG NINGWU CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the long-term maintenance has caused restrictions on traffic, affecting the normal use of this epoxy asphalt material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Add 57 parts (mass, the same below) of petroleum pitch (origin: Shanjiasi) heated to 90-140°C into the reactor, add 1.14 parts of maleic anhydride, and heat up to 150-155°C. After the pressure stabilizes, pass N 2 , Keep the total pressure at 0.20MPa, after 4 hours of reaction, slowly release the pressure to 0.1MPa. Obtain modified asphalt with carboxyl group or acid anhydride group;

[0020] The obtained modified asphalt with carboxyl group or acid anhydride group is gradually cooled to 100~110℃, and ethylenediamine is added to neutralize it so that the pH is 7, after completion, the temperature is raised to 130~140℃ for reaction for 1~3 hours; then vacuum 10 ~60 minutes, and then disperse by colloid mill high-speed dispersing machine to obtain part A;

[0021] The part A and part B heated to 105-170°C are mixed uniformly in a mass ratio of 3:1, and part B is epoxy resin (E-51, Wuxi Resin Factory) to obtain high thermosetting epoxy asphalt material.

[0022] This material ca...

Embodiment 2

[0024] Put 57.3 parts of petroleum pitch (American Shell) heated to 90-140°C into the reactor, add 11.4 parts of maleic anhydride, and heat up to 155-160°C. After the pressure is stable, pass N 2 , Keep the total pressure at 0.45MPa, after 5 hours of reaction, slowly release the pressure to 0.1MPa. Obtain modified asphalt with carboxyl group or acid anhydride group;

[0025] The obtained modified asphalt with carboxyl groups or acid anhydride groups is gradually cooled to 100-110°C, and diethylenetriamine is added to neutralize it so that the pH is 8. After completion, the temperature is raised to 130-140°C for reaction for 1 to 3 hours; Vacuum for 10-60 minutes, and then disperse by colloid mill high-speed dispersion machine to obtain Part A;

[0026] Part A and Part B heated to 105-170°C are mixed uniformly in a mass ratio of 3:8, and part B is epoxy resin (E-51, Wuxi Resin Factory), which is a high thermosetting epoxy asphalt material.

[0027] This material can be used as a bond...

Embodiment 3

[0029] Put 59.8 parts of coal tar pitch (Shanxi Hengde Chemical Co., Ltd.) heated to 90-140℃ into the reactor, add 6 parts of maleic anhydride, heat up to 155-160℃, keep for 30 minutes, when the pressure stabilizes, pass N 2 , Keep the total pressure at 0.45MPa; after 5 hours of reaction, slowly release the pressure to 0.1MPa. Obtain modified asphalt with carboxyl group or acid anhydride group;

[0030] The obtained modified asphalt with carboxyl group or acid anhydride group 30~76 parts is gradually cooled to 100~110℃, and triethylenetetramine is added for neutralization, so that the pH is 9, after completion, the temperature is raised to 130~140℃ for reaction 1~3 Hours; vacuum for 10-60 minutes, and then disperse by colloid mill high-speed dispersing machine to obtain part A;

[0031] Mix the parts A and B heated to 105~170℃ according to the mass ratio of 3:5, and the part B is epoxy resin (E-51, Wuxi Resin Factory), which is a high thermosetting epoxy asphalt material. Carry ou...

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Abstract

The invention discloses a high-thermosetting epoxy asphalt material and a preparation method thereof. The epoxy asphalt material comprises a part A and a part B, wherein, the mass ratio of the part A to the part B is 3:1-9:1; the mass of the part A is composed of modified asphalt with carboxyl or anhydride base; and the part B is the epoxy resin. The preparation method comprises the following steps: preparing the asphalt into the modified asphalt with carboxyl or anhydride base; adding amine organic matters into the obtained modified asphalt with carboxyl or anhydride base for neutralizing to obtain the part A; evenly mixing the part A and the part B according to the mass ratio of 3:1-9:1 to obtain the high-thermosetting epoxy asphalt material, wherein the part B is the epoxy resin. The material of the invention can be solidified at the condition of normal temperature, does not need high-temperature maintenance or long-time maintenance after paving, has small influence to the traffic, and can be used for the occasions with higher requirements, such as bridges and expressways and the like.

Description

Technical field [0001] The invention relates to a chemically modified asphalt, specifically a high-thermosetting epoxy asphalt material with excellent low-temperature performance and high-temperature performance, and a preparation method thereof. Background technique [0002] Asphalt has good adhesion and water resistance, simple use process, low cost, and has a wide range of applications in road paving, roof waterproofing, sealing and gluing, shock absorption and noise reduction. It is essentially a thermoplastic substance. This characteristic is often manifested on asphalt pavement. In the summer high temperature season, the road surface is prone to rutting under heavy load, and in the winter cold season, temperature shrinkage cracks are prone to appear. With the improvement of road grades and large-span steel boxes The widespread use of beam structure bridges puts forward high requirements on the strength, deformation stability and fatigue durability of the paving materials, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/58C08L95/00C10C3/02C08L63/00
Inventor 应珏翟洪金应军
Owner JURONG NINGWU CHEM
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