Environment-friendly normal-temperature thermosetting modified adhesive material for rapid repair

An adhesive material and environmentally friendly technology, applied in the field of environmental protection and energy saving, can solve the problems of long maintenance time, poor weather resistance and water stability, and use, and achieve the effect of short closed traffic time, durable use performance, and excellent use performance.

Active Publication Date: 2021-02-26
南京励米青新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among the commonly used road surface maintenance technologies, the traditional asphalt pavement maintenance method is to re-pave the asphalt surface layer after milling, which will cause long maintenance time (up to several days), easy to cause traffic congestion, waste materials and other problems
Although cold-mix asphalt mixture with emulsified asphalt as binder can be used for quick repair of pavement (closed to traffic for several hours), the performance of this cold-mix asphalt mixture is poor, and it is only suitable for temporary repair or road surface Functional layer (such as micro surface), cannot be used as pavement structure layer
At present, relevant engineers and technicians have used resin-modified asphalt materials, which can make the asphalt mixture based on the adhesive material have better performance, but these thermosetting resin-modified asphalt mixtures need to be constructed within 1-2 days. The traffic can only be opened in the rear, which will greatly interfere with the traffic on the operating road
In addition, the direct use of polyurethane resin as the adhesive material for pavement has been applied in recent years, but poor weather resistance and water stability are the major defects of this type of material
Therefore, the use of the above-mentioned adhesive materials has been difficult to meet the market demand, and new modified adhesive materials with environmental protection, convenient construction, excellent performance and good weather resistance are needed

Method used

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  • Environment-friendly normal-temperature thermosetting modified adhesive material for rapid repair
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  • Environment-friendly normal-temperature thermosetting modified adhesive material for rapid repair

Examples

Experimental program
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Effect test

preparation example Construction

[0028] 1. The preparation of environment-friendly normal temperature thermosetting modified asphalt, which consists of the following steps:

[0029] Step 1: Take 40-80 parts by mass of epoxy resin, 5-10 parts by mass of epoxy resin diluent, 2-10 parts by mass of amine curing agent and 45%-95% of 5-75 parts by mass of pitch In the reactor, heat up to 50-95°C, react for 1-2 hours, then add the remaining asphalt, stir for 30-60 minutes, and obtain component C;

[0030] Step 2: Take 40-80 parts by mass of amine curing agent, 1-5 parts by mass of curing accelerator, and 2-10 parts by mass of epoxy resin into the reaction kettle, heat up to 55-95°C, react for 30-60 minutes, and then Add 1 to 10 parts by mass of polybutadiene maleic anhydride adduct, 1 to 3 parts by mass of styrene, 2 to 10 parts by mass of epoxy reactive diluent, and 5 to 75 parts by mass of asphalt into the reactor, and heat up to 60-85°C, mix and stir for 30-60 minutes, and react the above materials for 1-6 hours...

Embodiment 1

[0038] 1. Preparation of environment-friendly thermosetting modified asphalt at room temperature: take 60 parts by mass of epoxy resin (U.S. Huntsman MY790-1) in component C, epoxy resin diluent (Dehong New Material Co., Ltd. epoxy diluent UR -8748) 9 parts by mass, 5 parts by mass of amine curing agent (U.S. Huntsman D-400), 20 parts by mass of Shell 70# common asphalt. Add them together into the reactor, raise the temperature to 60°C, react for 2 hours, then add the remaining 25 parts by mass of asphalt, and mix and stir for 35 minutes to obtain component C;

[0039] Take the amine curing agent in the D component (U.S. Huntsman 3229) 56 parts by mass, amine curing agent (U.S. Huntsman ARADUR-350) 8 parts by mass, curing accelerator (Hunsman Accelerator 960-1) 4 parts by mass, polybutadiene maleic anhydride adduct ( Evonik Degussa MA-75) 4 parts by mass, styrene (TSI (Shanghai) Chemical Industry Development Co., Ltd.) 1 part by mass, epoxy resin (U.S. Huntsman MY 790-1) 5...

Embodiment 2

[0042]1. Preparation of environment-friendly thermosetting modified asphalt at room temperature: take 65 parts by mass of epoxy resin (Hunsman PY 306 from the United States) in component C, epoxy resin diluent (Hunsman epoxy diluent DY-F from the United States) 9 parts by mass, amine curing agent (U.S. Huntsman 3225) 4 parts by mass, Shell 90# ordinary asphalt 10 parts by mass. Add them together into the reactor, raise the temperature to 70°C, react for 1 hour, then add the remaining 10 parts by mass of asphalt, and mix and stir for 40 minutes to obtain component C;

[0043] Take the amine curing agent in the D component (U.S. Huntsman 3440) 75 parts by mass, curing accelerator (Hunsman Accelerator 960-1) 3 parts by mass, polybutadiene maleic anhydride adduct (Evonik Degussa MA-75) 5 parts by mass, styrene (TSI (Shanghai) Chemical Industry Development Co., Ltd.) 1 part by mass, epoxy resin (U.S. Huntsman GY 257) 8 parts by mass, epoxy reactive diluent (Henry, USA) Add 8 ...

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PUM

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Abstract

The invention discloses an environment-friendly normal-temperature thermosetting modified adhesive material for rapid repair, and belongs to road engineering maintenance in the field of environmentalprotection and energy conservation. For solving the problems of pollution, inconvenient construction and the like exist in the prior art, the modified adhesive material provided by the invention comprises aggregate and environment-friendly normal-temperature thermosetting modified asphalt, wherein the environment-friendly normal-temperature thermosetting modified adhesive material is composed of acomponent C and a component D. The product has the advantages of environmental protection and convenient construction.

Description

technical field [0001] The invention relates to an environment-friendly and energy-saving material, which belongs to the field of environment-protection and energy-saving, in particular to an environment-friendly, room-temperature thermosetting modified adhesive material that can be quickly repaired. Background technique [0002] With the rapid and healthy development of my country's economy, my country's highway mileage has reached more than 5 million kilometers. Among them, asphalt pavement is the dominant pavement type. With the increase of service life, many asphalt pavements have gradually entered the maintenance stage. Among the commonly used road surface maintenance technologies, the traditional asphalt pavement maintenance method is to re-pave the asphalt surface layer after milling, which will cause long maintenance time (up to several days), easy to cause traffic congestion, waste materials and other problems. Although cold-mix asphalt mixture with emulsified asp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/26C04B111/72
CPCC04B26/26C04B2111/72C04B24/281C04B24/023C04B24/08C04B24/121C04B24/2664C04B24/00C04B14/00
Inventor 朱吉鹏杨若冲杨德喜
Owner 南京励米青新材料科技有限公司
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