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Waterborne epoxy resin modifier for emulsified asphalt and preparation method and application method thereof

A technology of water-based epoxy resin and emulsified asphalt, which is applied in building components, building insulation materials, construction, etc., can solve the problems of poor compatibility between water-based epoxy resin and emulsified asphalt, slow demulsification speed, and low high-temperature drawing strength , to improve storage stability, prevent gelation, enhance tensile and shear strength

Active Publication Date: 2019-04-19
JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a water-based epoxy resin modifier for emulsified asphalt and its preparation method and application method to solve the problems of poor compatibility between water-based epoxy resin and emulsified asphalt, slow demulsification speed, and low high-temperature drawing strength , so that it is more suitable for practical use and has industrial utilization value

Method used

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  • Waterborne epoxy resin modifier for emulsified asphalt and preparation method and application method thereof
  • Waterborne epoxy resin modifier for emulsified asphalt and preparation method and application method thereof
  • Waterborne epoxy resin modifier for emulsified asphalt and preparation method and application method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] S1. 15g ethylene glycol butyl ether is joined in 30g bisphenol A epoxy resin, then adds 0.3g lauroyl peroxide to reaction system;

[0038] S2. Add 6g of methacrylic acid to the reaction system, raise the temperature to 108°C, and react for 3h to obtain the graft copolymer intermediate;

[0039] S3. Then cool the intermediate to 60°C, add 1.5g of ammonia water and 30g of deionized water and stir for 1h;

[0040] S4. After returning to room temperature, add 0.006 g of di-tert-butyl dicarbonate to introduce tert-butoxycarbonyl to obtain the target product.

[0041] The grafting rate of the intermediate was measured by the methanol hot-melt cold analysis separation method to be 41.3%, and the median particle diameter of the water-based epoxy resin emulsion was measured by a laser particle size analyzer to be 955nm.

[0042] Preparation and spraying of water-soluble epoxy asphalt:

[0043] Take 5g of new water-based epoxy resin, compound 0.005g of dicyandiamide, add it to ...

Embodiment 2

[0050] S1. 20g n-butanol is joined in 30g bisphenol A epoxy resin, then add 0.3g lauroyl peroxide to reaction system;

[0051] S2. Add 7.5g of methyl methacrylate into the reaction system, raise the temperature to 115°C, and react for 4h to obtain the graft copolymer intermediate;

[0052]S3. The temperature of the intermediate was lowered to 70°C, and 4.2g of N-N dimethylethanolamine and 60g of deionized water were stirred and reacted for 1.5h;

[0053] S4. After returning to room temperature, add 0.011 g of benzyl chloroformate to introduce benzyloxycarbonyl to obtain the target product.

[0054] The grafting rate of the intermediate was measured by the methanol hot-melt cold analysis separation method to be 49.3%, and the median particle diameter of the water-based epoxy resin emulsion was measured by a laser particle size analyzer to be 220nm.

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

[0056] Take 20g of new water-based epoxy resin, compound 0.08...

Embodiment 3

[0063] S1. 18g isopropanol is joined in 30g bisphenol A epoxy resin, then adds 0.4g tert-butyl hydroperoxide to reaction system;

[0064] S2. Add 8.0 g of butyl acrylate to the reaction system, raise the temperature to 110° C., and react for 5 hours to obtain a graft copolymer intermediate;

[0065] S3. Then cool the intermediate to 50°C, add 4.0g N-N dimethylethanolamine and 50g deionized water and stir for 1h;

[0066] S4. After returning to room temperature, add 0.042 g of methoxycarbonyl chloride to introduce the methoxycarbonyl group to obtain the target product.

[0067] The grafting rate of the intermediate was measured by the methanol hot-melt cold analysis separation method to be 44.3%, and the median particle size of the water-based epoxy resin emulsion was measured by a laser particle size analyzer to be 320nm.

[0068] Preparation and spraying of water-soluble epoxy asphalt:

[0069] Take 10g of new water-based epoxy resin, compound with 0.03g of triphenylphosphi...

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Abstract

The invention discloses a waterborne epoxy resin modifier for emulsified asphalt and a preparation method and an application method thereof, and belongs to the technical field of road materials. The waterborne epoxy resin modifier for emulsified asphalt is prepared from the following ingredients: liquid epoxy resin, a solvent, an initiator, an acrylic monomer, a neutralizer and an amino protectant. The amino protectant is used for reducing activity of secondary amine of the liquid epoxy resin. The invention aims to provide a waterborne epoxy resin modifier for emulsified asphalt and a preparation method and an application method thereof to solve the problem that suitability between waterborne epoxy resin and emulsified asphalt is poor, demulsification is slow and high-temperature pull strength is low. Thereby, the product is more practical and has industrial utilization value.

Description

technical field [0001] The invention relates to the technical field of road materials, in particular to a water-based epoxy resin modifier for emulsified asphalt, a preparation method and an application method thereof. Background technique [0002] The waterproof bonding course is a structure that connects the two surface courses of the road, and can connect the upper and lower layers of asphalt concrete into one. It has good bonding force with base concrete and surface asphalt mixture, and has a certain high temperature stability, which can reduce the problems of slipping and falling off between layers under large traffic loads; at the same time, waterproof bonding The layer also has a certain waterproof function, which can protect the concrete road bridge from damage, prolong the service life of the road bridge, and improve the durability of the superstructure of the road bridge. At present, emulsified asphalt or polymer emulsion modified emulsified asphalt is mostly used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/10C08F220/06C08F220/14C08F220/18C08L95/00C08L51/08C08G59/50C08G59/40
CPCC08F283/10C08G59/4071C08G59/5033C08G59/504C08G59/5093C08L95/00C08L51/08C08F220/1804
Inventor 臧冬冬关永胜陈香陈李峰张志祥崔传炜徐德根詹从明黄麒庞一朋刘杰
Owner JIANGSU SINOROAD TRANSPORTATION SCI & TECH CO LTD
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