Two-component high-penetrability epoxy resin waterproof reinforcing coating, and preparation method and application thereof

A technology of epoxy resin and reinforcing coating, which is applied in the field of material engineering, can solve the problems of high viscosity, long curing time, and lack of permeability, etc., and achieve the effect of high cost performance and excellent permeability

Inactive Publication Date: 2012-05-02
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese invention patent 01107590.2 discloses a high-permeability carbonyl-epoxy waterproof reinforcing material. This material has the characteristics of low viscosity, strong affinity, and excellent mechanical properties, but it has problems such as long curing time and insufficient toughness.
In addition, the patent does not reflect the data of important indicators of waterproof coating performance such as surface dry time and bond strength
Chinese invention patent 201010130165.2 discloses a room temperature curing epoxy waterproof adhesive for bridge decks. This material has relatively strong bonding ability, but its viscosity is relatively high and it does not have excellent permeability

Method used

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  • Two-component high-penetrability epoxy resin waterproof reinforcing coating, and preparation method and application thereof
  • Two-component high-penetrability epoxy resin waterproof reinforcing coating, and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0046] A preparation method for a two-component high-permeability epoxy resin waterproof reinforcing coating, comprising the following steps:

[0047] (1) Add 10 parts by weight of methionine and 0.5 parts by weight of ethylenediamine to 20 parts by weight of absolute ethanol, stir and mix to prepare an intermediate active agent.

[0048] (2) 50 parts by weight of E-44 bisphenol A type epoxy resin, 20 parts by weight of furfural, 20 parts by weight of acetone, 10 parts by weight of butanone, 10 parts by weight of butyl glycidyl ether, 5 parts by weight of 1,4- Add butanediol diglycidyl ether, 2 parts by weight of ethylene glycol, and 2 parts by weight of polyoxyethylene pentylphenol ether into the reactor and stir for 20 minutes to obtain the main agent A liquid after being uniform.

[0049] (3) 10 parts by weight of diethylenetriamine, 7 parts by weight of the intermediate active agent of step (1), 3 parts by weight of γ-aminopropyl triethoxysilane, 1 part by weight of N, N-d...

Embodiment 2

[0052] A preparation method for a two-component high-permeability epoxy resin waterproof reinforcing coating, comprising the following steps:

[0053] (1) Add 5 parts by weight of methionine and 2 parts by weight of hexamethylenediamine to 10 parts by weight of absolute ethanol, stir and mix to prepare the intermediate active agent.

[0054] (2) with 75 parts by weight of F-51 phenolic epoxy resin, 30 parts by weight of furfural, 40 parts by weight of cyclohexanone, 5 parts by weight of butanone, 20 parts by weight of ethylene glycol diglycidyl ether, 5 parts by weight of glycerol, Add 4 parts by weight of polyoxyethylene hexylphenol ether into the reactor and stir for 20 minutes to obtain the main agent A liquid after being uniform.

[0055] (3) 15 parts by weight of triethylenetetramine, 2 parts by weight of the intermediate active agent of step (1), 5 parts by weight of N-β-(aminoethyl)-γ-aminopropylmethyldimethoxysilane , 3 parts by weight of 2,4,6-tris(dimethylamino)phen...

Embodiment 3

[0058] A preparation method for a two-component high-permeability epoxy resin waterproof reinforcing coating, comprising the following steps:

[0059] (1) In 30 parts by weight of absolute ethanol, add 20 parts by weight of methionine, 2 parts by weight of hexamethylenediamine and 2 parts by weight of butanediamine, stir and mix to prepare the intermediate active agent.

[0060] (2) 45 parts by weight of DER-354 bisphenol F type epoxy resin, 15 parts by weight of furfural, 50 parts by weight of acetone, 20 parts by weight of bianyl glycidyl ether, 10 parts of neopentyl glycol diglycidyl ether, 3 parts by weight 1 part sorbitol and 8 parts by weight of polyoxyethylene nonylphenol ether were added into the reactor and stirred for 20 minutes to obtain the main agent A liquid after being uniform.

[0061] (3) 20 parts by weight of isophorone diamine, 3 parts by weight of the intermediate active agent of step (1), 5 parts by weight of aniline triethoxysilane, and 4.5 parts by weigh...

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Abstract

The invention belongs to the engineering field of materials and discloses a two-component high-penetrability epoxy resin waterproof reinforcing coating, and a preparation method and application thereof. The coating consists of a main ingredient A solution and a main ingredient B solution. The main ingredient A solution contains epoxy resin, activated thinner, carbonyl compound, plasticizer and polyoxyethylene surfactant. The main ingredient B solution contains polyamine, intermediate activating agent, silane coupling agent and accelerating agent. The coating disclosed by the invention can be directly coated, the curing time is short, the penetrability is good, the coating can infiltrate into a treated surface, pretreatment and a protection layer are not required, the dual effects of waterprevention and reinforcing can be taken, the adhesive force is more excellent, the toughness is good, the requirement on the performance of waterproof coatings can be satisfied, the coating additionally has the characteristics of corrosion resistance, high temperature resistance, aging resistance and the like, and the defects of long curing time, insufficient toughness, poor penetrability and thelike of the existing like products are overcome.

Description

technical field [0001] The invention belongs to the field of material engineering, and specifically relates to a waterproof reinforcing material, in particular to a two-component high-permeability epoxy resin waterproof reinforcing coating and its preparation method and application. Background technique [0002] The main purpose of using waterproof materials in buildings is to prevent seepage and leakage. The consolidation process of cement is usually achieved by its hydration reaction. Due to the existence of free water, there will inevitably be capillary channels. If these capillary channels are continuous, water seepage channels will be formed, and the possibility of leakage is very high. This is the internal reason why many cement concrete products need to be "waterproof". [0003] At present, the waterproof materials sold on the market mainly include asphalt waterproof membranes, polyurethane waterproof coatings, etc., all of which have problems such as low mechanical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D163/02C09D163/04C09D7/12
Inventor 史珺梁利岩何泳生
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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