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A kind of low-viscosity and high-permeability building concrete reinforcement and plugging epoxy waterproof material and preparation method thereof

A technology of concrete reinforcement and waterproof material, which is applied in the field of low-viscosity and high-permeability building concrete reinforcement and plugging epoxy waterproof material and its preparation field, can solve the problems of concrete leakage, waterproof failure, plastic shrinkage cracks, etc. Good corrosion performance, stable structure and moderate pot life

Active Publication Date: 2022-04-15
HUNAN SHENLI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice has proved that most waterproofing agents can improve the impermeability of concrete, but in the actual application process, there are often phenomena of concrete shrinkage and cracking that cause leakage, and plastic shrinkage cracks are prone to occur, resulting in failure of waterproofing

Method used

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  • A kind of low-viscosity and high-permeability building concrete reinforcement and plugging epoxy waterproof material and preparation method thereof
  • A kind of low-viscosity and high-permeability building concrete reinforcement and plugging epoxy waterproof material and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0030] The preparation method of the modified cycloaliphatic amine curing agent adopted in each of the following embodiments comprises: adding cycloaliphatic amine curing agent PACM in the reaction vessel, adjusting the temperature to be 47~52 DEG C, dripping epoxy resin E-54 benzyl alcohol solution ( 20wt.% E-54, 80wt.% benzyl alcohol), complete in 2.0-2.5 hours, adjust the temperature to 51-56°C and continue the reaction for 1.5-2.5 hours, then filter and discharge to obtain the product;

[0031] The weight ratio of PACM to epoxy resin E-54 benzyl alcohol solution (17wt.%-23wt.% E-54, 77wt.%-83wt.% benzyl alcohol) is 6-7:1.

[0032] The preparation method of the flexible modifying agent that adopts comprises: adding 1,4-butanediol diglycidyl ether in reaction vessel, adjusting temperature is 50~55 ℃, dripping gamma-aminopropyltriethoxysilane, 1.5 ~ 2.0 hours to complete, adjust the temperature to 55 ~ 60 ° C and continue to react for 1 hour, then filter and discharge;

[00...

Embodiment 1

[0036] A low-viscosity and high-permeability building concrete reinforcement plugging epoxy waterproof material, including A component and B component;

[0037] The raw materials of component A are as follows: 45.0g bisphenol A epoxy resin E-54, 32.0g 1,4-butanediol diglycidyl ether, 14.0g flexible modifier, 3.0g KH560 and 6.0g benzyl alcohol;

[0038] The raw materials of component B are as follows: 21.0g 1,3-BAC, 40.0g modified alicyclic amine curing agent, 29.0g polyetheramine D220 and 10.0g benzyl alcohol.

[0039] A method for preparing a low-viscosity high-permeability building concrete reinforcement plugging epoxy waterproof material, comprising the steps of:

[0040] (1) Heat 45.0g of bisphenol A epoxy resin E-54 to 65-70°C, add it into the reaction flask, start stirring, add 32.0g of 1,4-butanediol diglycidyl ether, 14.0g of flexible modified agent, 3.0g KH560 and 6.0g benzyl alcohol, and stirred for 70 minutes to obtain component A.

[0041](2) Add 21.0g of 1,3-BAC...

Embodiment 2

[0053] A low-viscosity and high-permeability building concrete reinforcement plugging epoxy waterproof material, including A component and B component;

[0054] The raw materials of component A are as follows: 51.0g bisphenol A epoxy resin E-54, 20.0g 1,4-butanediol diglycidyl ether, 11.0g flexible modifier, 6.0g KH560 and 12.0g benzyl alcohol;

[0055] The raw materials of component B are as follows: 28.0g 1,3-BAC, 36.0g modified alicyclic amine curing agent, 21.0g polyetheramine D220 and 15.0g benzyl alcohol.

[0056] A method for preparing a low-viscosity high-permeability building concrete reinforcement plugging epoxy waterproof material, comprising the steps of:

[0057] (1) Heat 51.0g of bisphenol A epoxy resin E-54 to 65-70°C, add it into the reaction flask, start stirring, add 20.0g of 1,4-butanediol diglycidyl ether, 11.0g of flexible modified agent, 6.0g KH560 and 12.0g benzyl alcohol, and stirred for 70 minutes to obtain component A.

[0058] (2) Add 28.0g of 1,3-...

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Abstract

The invention discloses a low-viscosity and high-permeability building concrete reinforcement plugging epoxy waterproof material, which includes A component and B component. The raw materials of A component include: 45-51% bisphenol A type epoxy resin, 18-32% Reactive diluent, 10-15% flexible modifier, 3-6% coupling agent and 6-12% auxiliary; B component raw materials include: 20-28% alicyclic amine curing agent, 36-41% modified Alicyclic amine curing agent, 20-30% polyetheramine curing agent and 10-15% auxiliary agent. The epoxy waterproof material of the present invention is environmentally friendly, has low viscosity, strong permeability, good aging resistance, can be cured at low temperature and normal temperature, has a moderate application period, is convenient for construction, and can easily penetrate into the small cracks and capillary pores of building concrete. After curing, it will form a consolidated body with concrete to strengthen and strengthen, and the formed consolidated body has a stable structure, good waterproof and impervious effects.

Description

technical field [0001] The invention belongs to the technical field of preparation of building concrete reinforcement and plugging waterproof materials, and relates to a low-viscosity and high-permeability building concrete reinforcement and plugging epoxy waterproof material and a preparation method thereof. Background technique [0002] Waterproof engineering of buildings has a very important position. Waterproof quality accidents caused by unreasonable design, improper material selection, and rough construction occur from time to time. Leakage of houses and nodes, underground engineering, and underground garages are flooded or flooded all year round. If it is dry, it will cause damage to the building and require repairs, and it will cause the collapse of the building in severe cases, causing losses to the state and personal property, and even endangering life. [0003] All cement concrete is permeable to water. When the strength decreases after water infiltration, it wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B26/14C04B111/27
CPCC04B26/14C04B2111/27C04B2201/10C04B2201/50C04B24/32C04B24/121C04B24/023C04B24/026C04B2103/0068
Inventor 袁宏伟袁祖德李广琦
Owner HUNAN SHENLI IND
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