Water-resistant curing agent, method for preparing the same, and use thereof

Abstract

The application discloses a water-resistant curing agent and a preparation method and application thereof. The curing agent comprises the following components in parts by mass: polyacrylate resin 45-55 parts; dispersant 40-50 parts; tackifier 3-5 parts; filler 2-3 parts; and initiator 0.5-1.0 parts. The curing agent has excellent curing performance and water resistance, and is suitable for a wide range of applications. As a soil curing agent, the curing agent can make the instant contact angle of the cured soil / water interface reach 150 degrees or more after remolding soil, has super-hydrophobicity, significantly improves the water resistance of the soil, and enhances the strength of the remolded soil. The preparation method of the curing agent is simple, the cost is low, the curing agent can meet the requirements of soft soil repair and canal repair, and has good popularization and application effects.

Claims

1. A water-resistant curing agent, characterized in that: Includes the following components by weight: 45-55 parts of polyacrylate resin; 40-50 parts of dispersant; 3-5 parts of tackifier; 2-3 parts of filler; Initiator 0.5~1.0 parts; The tackifier is at least one of hydroxyl silicone oil, epoxy silicone oil, trimethylsilane, and γ-(2,3-epoxypropoxy)propyltrimethoxysilane; The dispersant is a composite emulsion containing sodium dodecyl sulfate and alkylphenol polyoxyethylene ether; The filler includes calcium aluminate and calcium silicate; The initiator is at least one of ammonium persulfate, potassium persulfate, azobisisobutyronitrile, and benzoyl peroxide.

2. The water-resistant curing agent according to claim 1, characterized in that: The polyacrylate resin is at least one of polymethyl acrylate, polymethyl methacrylate, polyethyl acrylate, polybutyl acrylate, polyisobutyl acrylate, polytert-butyl acrylate, and polyhydroxyethyl acrylate.

3. The water-resistant curing agent according to claim 1, characterized in that: The total mass concentration of sodium dodecyl sulfate and alkylphenol polyoxyethylene ether in the dispersant is 0.5-3%; The mass ratio of sodium dodecyl sulfate to alkylphenol polyoxyethylene ether is 0.5~2:

1.

4. A water-resistant curing agent according to claim 1, characterized in that: The mass ratio of calcium aluminate to calcium silicate is 0.5~2:

1.

5. A method for preparing a water-resistant curing agent according to any one of claims 1 to 4, characterized in that: The product is obtained by mixing polyacrylate resin, dispersant, thickener, filler and initiator.

6. The application of the water-resistant curing agent according to claim 1, characterized in that: As a soil stabilizer.

7. The application of the water-resistant curing agent according to claim 6, characterized in that: The water-resistant curing agent is added to the soil at a rate of 0.1~1.0 L / m³. 3 .

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