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Second-order hot-mixing epoxy adhesive layer oil special for steel bridge deck pavement as well as preparation method and application of special second-order hot-mixing epoxy adhesive layer oil

A technology of epoxy adhesive layer oil and steel bridge deck, which is applied in the direction of epoxy resin coatings, coatings, bridges, etc., can solve the problems of insufficient bonding strength, insufficient durability, and insufficient waterproof performance of epoxy adhesive layers, and achieve Improve epoxy flexibility, excellent shear resistance, and controllable working time

Pending Publication Date: 2021-11-26
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a special second-order hot-mixed epoxy adhesive layer oil for steel bridge deck pavement and its preparation method and application, which overcomes the insufficient bonding strength and insufficient waterproof performance of the steel bridge deck pavement epoxy adhesive layer. The problem of insufficient durability

Method used

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  • Second-order hot-mixing epoxy adhesive layer oil special for steel bridge deck pavement as well as preparation method and application of special second-order hot-mixing epoxy adhesive layer oil
  • Second-order hot-mixing epoxy adhesive layer oil special for steel bridge deck pavement as well as preparation method and application of special second-order hot-mixing epoxy adhesive layer oil
  • Second-order hot-mixing epoxy adhesive layer oil special for steel bridge deck pavement as well as preparation method and application of special second-order hot-mixing epoxy adhesive layer oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Preparation of high temperature epoxy curing agent:

[0033] 1mol of dodecyl primary amine, 1.2mol of 2-chloroethylamine and 50ml of ethanol constitute a reaction system, react at 50°C for 7.5h under the catalysis of sodium ethoxide, and obtain a second-stage hot-mix epoxy high-temperature curing agent;

[0034] Hot mix epoxy resin preparation:

[0035] Described epoxy resin A proportioning:

[0036]

[0037] Described resin B component comprises following weight components:

[0038] 45 parts of self-made high temperature curing agent

[0039] T-99 strong elastic toughness epoxy curing agent 30 parts

[0040] Mix epoxy resin component A and resin component B according to the above ratio at a weight ratio of 2:1, and form a test piece after mixing. The test piece is kept in an oven at 60°C for 4 days and then placed at 23°C for 1 day to test the heat. The basic performance of mixing epoxy resin, the coating amount of epoxy resin is 0.46kg / m 2 .

[0041] Comparat...

Embodiment 2

[0046] Preparation of high temperature epoxy curing agent:

[0047] 1 mol of tetradecyl primary amine, 50 ml of cyclohexane and 2 mol of 3-chloropropylamine constitute a reaction system, and react for 6 hours under the catalysis of sodium ethoxide at 40°C to prepare a second-stage hot-mix epoxy high-temperature curing agent.

[0048] Hot mix epoxy resin preparation:

[0049] Described epoxy resin A proportioning:

[0050]

[0051] Described resin B component comprises following weight components:

[0052] 60 parts of self-made high temperature curing agent

[0053] Polyetheramine D-230 40 parts

[0054] Mix the epoxy resin component A and the resin component B according to the weight ratio of 1:1, and form the test piece after mixing. After the test piece is kept in a 60°C oven for 4 days, it is placed at 23°C for 1 day to test the hot mix epoxy resin. The basic properties of the resin, the coating amount of epoxy resin is 0.7kg / m 2 .

[0055] Comparative example experi...

Embodiment 3

[0060] Preparation of high temperature epoxy curing agent:

[0061] 1 mol of hexadecyl primary amine, 50 ml of tetrahydrofuran and 1 mol of 2-chloromethylethylamine constitute a reaction system, and react for 8 hours under the catalysis of sodium ethoxide at 65°C. Prepare a second-order hot-mix epoxy high-temperature curing agent;

[0062] Hot mix epoxy resin preparation:

[0063] Described epoxy resin A proportioning:

[0064]

[0065] Described resin B component comprises following weight components:

[0066] 63 parts of self-made high temperature curing agent

[0067] Polyetheramine D-400 27 parts

[0068] Mix the epoxy resin component A and the resin B component according to the weight ratio of 3:1, and form the test piece after mixing. After the test piece is cured in the oven at 60 ℃ for 4 days, the temperature is 23 ℃ for 1 day to test the hot mix epoxy The basic properties of the resin, the coating amount of epoxy resin is 0.8kg / m 2 .

[0069] Comparative exa...

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Abstract

The invention discloses a second-order hot-mixing epoxy adhesive layer oil special for steel bridge deck pavement and a preparation method and application of the oil. The second-order hot-mixing epoxy adhesive layer oil comprises an epoxy resin component A and a resin component B. The epoxy resin component A comprises, by weight, 100 parts of bisphenol A epoxy resin, 0-10 parts of a rubber flexibilizer, 3-15 parts of a diluent and 1-5 parts of a coupling agent; the resin component B comprises the following components in parts by weight: 20-70 parts of a second-order hot-mixed epoxy high-temperature curing agent and 20-50 parts of a normal-temperature curing agent; wherein the second-order hot mixing epoxy high-temperature curing agent is prepared by dissolving aliphatic amine and alkyl halide in a solvent to form a reaction system, and reacting for 5-8 hours at 40-90 DEG C under the catalytic action of sodium ethoxide. The preparation method of the second-order hot-mixing epoxy adhesive layeroil special for steel bridge deck pavement is simple, and the oil is high in bonding strength, excellent in flexibility and high in waterproof performance and can be widely applied to large-span steel bridge deck pavement, tunnel pavement and cement bridge deck pavement.

Description

technical field [0001] The invention belongs to the technical field of second-order hot-mix epoxy resins, and in particular relates to a special second-order hot-mix epoxy adhesive layer oil for steel bridge deck pavement and its preparation method and application. Background technique [0002] With the rapid development of my country's transportation construction, bridge construction has also developed rapidly. The wide application of new materials and new structures has made great progress in the construction technology of long-span bridges such as suspension bridges and cable-stayed bridges. However, steel bridge deck pavement technology is still a problem that has not been well resolved. [0003] Epoxy asphalt mixture is an ideal road construction material for steel bridge deck pavement, pavement wear course, and super-heavy traffic roads, and has broad application prospects. Foreign countries began to study and promote the use of epoxy asphalt mixture in the 1960s. Co...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D7/65E01D19/08
Inventor 马涛时爽陈香
Owner SOUTHEAST UNIV
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