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Epoxy resin type wheel-sticking-free emulsified asphalt and preparation method thereof

A technology of epoxy resin and emulsified asphalt, which is applied in climate change adaptation, building components, building insulation materials, etc., can solve the problems of insufficient low-temperature ductility, insufficient low-temperature performance, peeling, and separation of two layers, etc., to improve low-temperature fatigue performance , Improve the PG level, improve the effect of bonding strength

Active Publication Date: 2021-06-25
河北交投资源开发利用有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Non-stick wheel sticky emulsified asphalt is a new product proposed in recent years. There are few relevant technical materials published at home and abroad about the non-stick wheel sticky emulsified asphalt. To sum up: At present, the existing technology mainly adopts two methods to prepare non-sticky Wheel emulsified asphalt, option 1: use hard asphalt to prepare non-stick wheel emulsified asphalt (US Patent: 7357594), but the evaporation residue of non-stick wheel emulsified asphalt prepared by this method is relatively brittle, and the low temperature ductility is insufficient. After a period of use, the asphalt Peeling occurs on the road surface, and the two layers are separated. Therefore, the method of preparing non-stick wheel emulsified asphalt is gradually eliminated in the United States.
Scheme 2: Use SBS modified low-grade asphalt compound warm mix agent to prepare modified asphalt, and then use special emulsifier to emulsify the modified asphalt to prepare non-stick emulsified asphalt (US Patent: 20130104776), but this method prepares non-stick Although wheel emulsified asphalt has improved the low temperature performance of asphalt, the low temperature performance of non-stick wheel emulsified asphalt still cannot reach the low temperature performance of sticky layer emulsified asphalt currently used in my country.
Research in China mainly focuses on the preparation of non-stick wheel emulsified asphalt by emulsifying modified hard asphalt (CN201410671423), which has problems such as poor asphalt adhesion and insufficient low temperature performance

Method used

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  • Epoxy resin type wheel-sticking-free emulsified asphalt and preparation method thereof

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Effect test

Embodiment 1

[0020] The preparation method of the non-stick wheel emulsified asphalt for the epoxy resin type adhesive layer of the present invention, the steps are as follows:

[0021] 1) Heat 100 parts of Ssangyong 70# asphalt to 175°C, turn on the mixer, and then respectively add 3 parts of bisphenol A epoxy resin E51, 20 parts of sulfonated asphalt powder, and 4 parts of Polyethylene wax and 4 parts of polyether polyols with a relative molecular weight of 3000 were added to Ssangyong 70# asphalt and stirred for 30 minutes to obtain the matrix asphalt, in which n hydroxyl group / n epoxy group was 0.45.

[0022] 2) Add 1 part of Meide LA, 0.04 part of boron trifluoride complex and 0.01 part of sodium carboxymethylcellulose to 100 parts of water and stir until completely dissolved, then use 0.3 part of 40% NaOH solution The pH of the solution was adjusted to 10-10.5 to prepare a soap solution.

[0023] 3) Heat the soap solution to 55°C and the modified asphalt to 180°C, turn on the Dovey ...

Embodiment 2

[0029] The preparation method of the non-stick wheel emulsified asphalt for the epoxy resin type adhesive layer of the present invention, the steps are as follows:

[0030] 1) Heat 100 parts of SK70# asphalt to 175°C, turn on the agitator, and then add 4.5 parts of bisphenol A epoxy resin NPEL128, 18 parts of oxidized asphalt powder, and 3 parts of polyethylene with a melting point of 115°C Wax and 7 parts of polyether polyols with a relative molecular weight of 4500 were added to SK70# asphalt and stirred for 30 minutes to obtain matrix asphalt, wherein the n hydroxyl group / n epoxy group was 0.53.

[0031] 2) Add 2 parts of anionic asphalt emulsifier BH-Y, 0.06 parts of triphenylphosphine and 0.02 parts of hydroxypropyl methylcellulose to 100 parts of water and stir until completely dissolved, then use 0.3 parts of 40 % NaOH solution to adjust the pH to 10-10.5 to prepare soap.

[0032] 3) Heat the soap solution to 58°C and the modified asphalt to 180°C, turn on the Dovey co...

Embodiment 3

[0038] The preparation method of the non-stick wheel emulsified asphalt for the epoxy resin type adhesive layer of the present invention, the steps are as follows:

[0039] 1) Heat 100 parts of Xitai 70# asphalt to 180°C, turn on the mixer, and then respectively mix 2.7 parts of bisphenol A epoxy resin E51, 22 parts of Butonite asphalt powder, and 1 part of Polyethylene wax at 123°C and 15 parts of polyether polyols with a relative molecular weight of 6000 were added to Xitai 70# asphalt and stirred for 30 minutes to obtain a matrix asphalt, in which n hydroxyl group / n epoxy group was 0.6.

[0040] 2) Add 1.5 parts of SM-LY-102 anionic asphalt emulsifier, 0.015 parts of hydroxypropyl cellulose sodium and 0.06 parts of triethanolamine to 100 parts of water and stir until completely dissolved, then use 0.4 parts of 40% The NaOH solution adjusts the pH to 10-10.5 to prepare soap.

[0041] 3) Heat the soap solution to 55°C and the modified asphalt to 180°C, turn on the Dovey coll...

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Abstract

The invention discloses epoxy resin type wheel-sticking-free emulsified asphalt and a preparation method thereof, and the asphalt comprises the following raw materials in parts by weight: 100 parts of matrix asphalt, 1-8 parts of bisphenol A epoxy resin, 0-5 parts of polyethylene wax, 0-30 parts of special asphalt, 0-10 parts of polyether polyol, 0-1 part of an emulsifier, 0-0.3 part of a thickener, 0-0.5 part of hydrochloric acid, 0-0.3 part of an auxiliary agent and 100 parts of water. The viscosity of the epoxy modified asphalt is reduced to 0-0.3 Mpa by adopting the polyethylene wax, so that the PG grade and the cohesive force at 60 DEG C of the emulsified asphalt evaporation residue are remarkably improved, and the industrial utilization value is increased.

Description

technical field [0001] The invention relates to asphalt and a preparation method thereof, in particular to an epoxy resin type non-stick wheel emulsified asphalt and a preparation method thereof. Background technique [0002] Emulsified asphalt has been widely used in highway engineering as a waterproof adhesive layer. However, after a layer of emulsified asphalt is sprayed, when the asphalt is being paved, the wheels and paver are rolled on a thin layer of emulsified asphalt. Under the action of gravity, the asphalt adheres to the wheels, causing damage to the waterproofing The damage of the adhesive layer will not achieve the ideal waterproof effect, especially for the highly demanding waterproof adhesive layer of the bridge deck, which will affect the construction quality and further affect the durability of the road surface. In order to solve the above problems, the development of non-stick wheel emulsified asphalt with high bond strength to the pavement and resistance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L95/00C08L63/00C08L63/02C08L23/06C08L71/00
CPCC08L95/00C08L2205/025C08L2205/035C08L63/00C08L23/06C08L71/00Y02A30/30
Inventor 李彦伟耿磊王小虎
Owner 河北交投资源开发利用有限公司