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Synthesis of novel high-performance waterborne epoxy resin and application thereof in waterproof adhesive layer

A water-based epoxy resin and epoxy resin technology, used in coatings, asphalt coatings, etc., can solve the problems of low high temperature tensile strength, easy separation of water-based epoxy resin and emulsified asphalt, etc., and achieve enhanced tensile and shear resistance. The effect of cutting strength and prolonging service life

Active Publication Date: 2017-06-20
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to overcome the defects of existing water-based epoxy asphalt, and provide a preparation method and application of a novel high-performance water-based epoxy resin, to solve the problem of easy separation of water-based epoxy resin and emulsified asphalt, high temperature drawing The problem of low pull-out strength is more suitable for practical use and has industrial utilization value

Method used

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  • Synthesis of novel high-performance waterborne epoxy resin and application thereof in waterproof adhesive layer
  • Synthesis of novel high-performance waterborne epoxy resin and application thereof in waterproof adhesive layer
  • Synthesis of novel high-performance waterborne epoxy resin and application thereof in waterproof adhesive layer

Examples

Experimental program
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Effect test

Embodiment 1

[0036] 20g bisphenol A epoxy resin E51 of Jining Huakai Resin Co., Ltd., 0.3g AlCl 3 Add 4g of 1-chloro-n-nonane into 50ml of N,N-dimethylformamide, raise the temperature to 85°C, and react for 4h to obtain an epoxy intermediate. The intermediate is then cooled to room temperature (25 ± 5°C), added 16g of polyethylene glycol 2000, then heated up to 90°C for 7h to obtain the target product, and the conversion rate of bisphenol A epoxy resin is 91.2% by liquid chromatography. %.

[0037] Preparation and spraying of water-soluble epoxy asphalt:

[0038] Get 4g of new waterborne epoxy resin and join in 100g of 50% anionic emulsified asphalt, and pass through a colloid mill to grind once to obtain the waterborne epoxy asphalt emulsion. The spraying amount of emulsion is 0.3Kg / m 2 .

[0039] Preparation of Dow Waterborne Epoxy Asphalt:

[0040] Get 4g of Dow's water-based epoxy resin, add it into 100g of 50% anionic emulsified asphalt, and pass through a colloid mill to grind o...

Embodiment 2

[0045]40g bisphenol A epoxy resin E51 of Jining Huakai Resin Co., Ltd., 0.3g FeCl 3 Add 4g of 1-chloro-n-octane into 50ml of ethyl acetate, raise the temperature to 80°C, and react for 3.5h to obtain an epoxy intermediate. Then cool the intermediate to room temperature, add 40g of methallyl alcohol polyether 2400, and then raise the temperature to 110° C. for 5 hours to obtain the target product. The conversion rate of bisphenol A epoxy resin is 87.6% as measured by liquid chromatography.

[0046] Preparation and spraying of water-soluble epoxy asphalt:

[0047] Get 2g of new water-based epoxy resin and add it to 100g of 50% anionic emulsified asphalt, and pass through the colloid mill once to obtain the water-based epoxy asphalt emulsion. The spraying amount of the emulsion is 0.44Kg / m 2 .

[0048] Preparation of Dow Waterborne Epoxy Asphalt:

[0049] Take 2g of Dow's water-based epoxy resin, add it to 100g of 50% anionic emulsified asphalt, and pass through a colloid mil...

Embodiment 3

[0054] 30g bisphenol A epoxy resin E51 from Jining Huakai Resin Co., Ltd., 0.35g H 2 SO 4 Add 15g of 1-chloro-n-dodecane into 50ml of ethanol, raise the temperature to 80°C, and react for 7h to obtain an epoxy intermediate. Then cool the intermediate to room temperature, add 45g of methyl vinyl alcohol polyether 2400, and then raise the temperature to 78 ° C for 12 hours to obtain the target product, and the conversion rate of bisphenol A epoxy resin is 75.2% as measured by liquid chromatography.

[0055] Preparation and spraying of water-soluble epoxy asphalt:

[0056] Get 5g new waterborne epoxy resin and join in the 50% anionic emulsified asphalt of 100g, pass through colloid mill and grind once, promptly obtain waterborne epoxy asphalt emulsion. The spraying amount of emulsion is 0.42Kg / m 2 .

[0057] Preparation of Dow Waterborne Epoxy Asphalt:

[0058] Take 5g of Dow's water-based epoxy resin, add it into 100g of 50% anionic emulsified asphalt, and pass through a co...

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Abstract

The invention discloses synthesis of novel high-performance waterborne epoxy resin and application thereof in a waterproof adhesive layer. A preparation method of the high-performance waterborne epoxy resin comprises the following steps: (1) adding chlorinated alkane and bisphenol A epoxy resin to an organic solvent, and conducting a temperature-rise reaction under the catalysis of a catalyst to obtain an intermediate product, wherein the mass of the chlorinated alkane is from 10% to 50% of the mass of the bisphenol A epoxy resin, and the mass of the catalyst is 0.2%-0.5% of the total mass of the reaction system; and (2) adding polyethylene glycol or a polyethylene glycol derivative into the cooled intermediate product, and conducting a temperature-rise reaction to obtain a target product. According to the invention, a linear-chain lipophilic agent is attached to the bisphenol A to promote the fusion of the novel bisphenol A epoxy resin and asphalt. The problem that the ordinary bisphenol A epoxy resin is easy to separate from the asphalt is solved. According to the invention, the tensile strength and shear strength of the waterproof adhesive layer are enhanced, and the service life of an asphalt pavement is prolonged.

Description

technical field [0001] The invention relates to a preparation method of a novel high-performance water-based epoxy resin, in particular to a preparation method and application of a novel high-performance water-based epoxy resin for a waterproof adhesive layer. Background technique [0002] In the 21st century, with the rapid development of my country's economy, roads and bridges, as an important part of public infrastructure, have been paid special attention. The road and bridge deck pavement built in the early 1990s in China basically does not have a waterproof layer. Soon after it is put into use, the asphalt concrete pavement layer of the bridge deck will suffer early damage such as serious damage, cracking, pits, and swelling. This phenomenon seriously affects the service life of the bridge and the comfort and safety of driving. The main causes of bridge concrete diseases are freeze-thaw damage, corrosion of steel bars, alkali-aggregate reaction, and carbonation of conc...

Claims

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Application Information

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IPC IPC(8): C08G81/00C08G59/14C09D195/00C09D187/00
CPCC08G59/1433C08G81/00C09D195/005C08L87/005
Inventor 陈香陈李峰关永胜李经纬刘杰潘友强张建
Owner JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD