Flexible epoxy ester leaking stoppage material as well as preparation method and application thereof

A technology of flexible epoxy resin and plugging materials, applied in the direction of epoxy resin glue, adhesive type, adhesive additives, etc., can solve the problem of less activity of epoxy resin and curing agent, longer operating time of slurry, It is difficult to meet the problems of fast plugging and other problems, and achieve the effects of fast curing speed, increased adhesion, and improved hydrophilicity

Active Publication Date: 2015-06-03
XIAN METRO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yang Xia and others from Shanghai Academy of Building Research Co., Ltd. prepared a solvent-free flexible epoxy grouting material by using modified resin, active diluent, and flexible curing agent. Adjusted to 110mPa.s, the operating time is 90min, the cured product has good flexibility, the elongation at break is 9.8%, and the compressive strength is 70MPa. It is used in the leakage control of tunnels and underground stations on Shanghai Metro Line 9. The effect is obvious, but there is a disadvantage that due to the flexible modification, the activity of epoxy resin and curing agent becomes smaller, and the operating time of the slurry becomes longer, which makes it difficult to meet the requirements of rapid plugging

Method used

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  • Flexible epoxy ester leaking stoppage material as well as preparation method and application thereof
  • Flexible epoxy ester leaking stoppage material as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] A preparation method of flexible epoxy grease plugging material, comprising the following steps:

[0038] 1) Synthesis of polyether glycol modified bisphenol F epoxy resin

[0039] Add 189g of bisphenol F epoxy resin 830S, 10g of polyethylene glycol 200 and 1g of benzyltriethylammonium chloride into a four-neck flask, stir evenly, and heat the oil bath to 90±10°C for 3 to 4 hours , promptly obtain polyether glycol modified bisphenol F type epoxy resin 200g after cooling;

[0040] 2) Preparation of Component A

[0041] Mix 70g of polyether diol-modified bisphenol F epoxy resin and 20g of flexible epoxy resin 6350, then add 10g of reactive diluent 692, stir evenly, and obtain component A;

[0042] 3) Synthesis and preparation of component B

[0043] Add 102g of cardanol and 10g of diethanolamine into a reactor with a reflux condenser, stir and mix evenly, raise the temperature to 80±5°C, add 3g of paraformaldehyde powder, reflux for 1 hour, and then add 18g of polyethe...

Embodiment 2

[0047] A preparation method of flexible epoxy grease plugging material, comprising the following steps:

[0048] 1) Synthesis of polyether glycol modified bisphenol F epoxy resin

[0049] Add 189g of bisphenol F-type epoxy resin 830S, 10g of polyethylene glycol 400 and 1g of N,N-dimethylaniline into a four-necked flask, stir evenly, and heat the oil bath to 90±10°C for 3-4 hours , promptly obtain polyether glycol modified bisphenol F type epoxy resin 200g after cooling;

[0050] 2) Preparation of Component A

[0051] Mix 75g of polyether diol-modified bisphenol F epoxy resin and 10g of flexible epoxy resin at 6350, then add 15g of reactive diluent AGE, stir evenly, and obtain component A;

[0052] 3) Synthesis and preparation of component B

[0053] Add 102g of cardanol and 13g of diethanolamine into a reactor with a reflux condenser, stir and mix evenly, raise the temperature to 80±5°C, add 3g of paraformaldehyde powder, reflux for 1 hour, and then add 21g of polyetheramin...

Embodiment 3

[0057] A preparation method of flexible epoxy grease plugging material, comprising the following steps:

[0058] 1) Synthesis of polyether glycol modified bisphenol F epoxy resin

[0059] Add 179.2g of bisphenol F epoxy resin 830S, 20g of polyethylene glycol 200 and 0.8g of benzyltriethylammonium chloride into a four-neck flask, stir evenly, and heat the oil bath to 90±10°C to react 3- After 4 hours, obtain polyether glycol modified bisphenol F type epoxy resin 200g after cooling;

[0060] 2) Preparation of Component A

[0061] Mix 75g of polyether diol-modified bisphenol F epoxy resin and 15g of flexible epoxy resin at 6350, then add 10g of reactive diluent AGE, stir evenly, and obtain component A;

[0062] 3) Synthesis and preparation of component B

[0063] Add 102g of cardanol and 16g of diethanolamine into a reactor with a reflux condenser, stir and mix evenly, raise the temperature to 80±5°C, add 3g of paraformaldehyde powder, reflux for 1 hour, and then add 22g of po...

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Abstract

The invention discloses a flexible epoxy ester leaking stoppage material, as well as a preparation method and an application thereof. The flexible epoxy ester leaking stoppage material is composed of a component A and a component B at a weight ratio of 100: (30-50), wherein the component A comprises the following components by weight percentage: 70-80% of polyether glycol modified bisphenol F epoxy resin, 5-20% of flexible epoxy resin and 10-20% of reactive diluents; and the component B comprises the following components by weight percentage: 51% of anacardol, 5% of paraformaldehyde powder, 24-30% of triethylene tetramine, 9-15% of polyether amine D-230, 5-8% of diethanol amine. The flexible epoxy ester leaking stoppage material provided by the invention can be rapidly cured, has high bonding strength with the moist concrete and can be applied to the rapid leaking stoppage projects of the metro, the high-speed rail and the highway tunnel, and particularly is suitable for the concrete crack position under a vibration disturbance influence.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a flexible epoxy plugging material and its preparation method and application. Background technique [0002] After the highway and railway tunnels are put into operation, the second lining and the inverted arch of the tunnel will be affected by the vibration disturbance caused by the passage of cars and trains for a long time; There is a lot of vibration disturbance, and when the top of the subway is a municipal road, when the cars on the road pass by, there will be a certain vibration disturbance to the structure of the subway. Therefore, the subway tunnel is in the operating environment of double vibration disturbance on the ground and underground , conventional waterproof plugging materials are not suitable for the leakage control of this type of tunnel. [0003] At present, there are basically no reports on flexible epoxy resin waterproof plugging materials used for rapid p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/08C09J11/06
Inventor 杨晓强王彦臻陈千李大伟毋铁卫张维欣杨元龙
Owner XIAN METRO
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