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A kind of self-closing resin waterproof coating and preparation method and application thereof

A technology of waterproof coating and waterproof coating film, applied in the direction of coating, can solve the problems of poor application effect and discount of waterproof effect, and achieve the effect of good weather resistance and stability, good waterproof acid and alkali resistance, and improved ductility.

Active Publication Date: 2020-03-27
BEIJING AOTAILI NEW TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These polymer cement waterproof coatings are applied to actual projects. Due to various reasons, there may be some small cracks in the coating film of polymer cement waterproof coatings, and the waterproof effect will be discounted, and the application effect will be poor.

Method used

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  • A kind of self-closing resin waterproof coating and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A self-closing resin waterproof coating, made of A component and B component; wherein A component is composed of the following components in mass percentage: polyvinyl acetate resin 70%, dibutyl ester 8%, hydroxypropyl Methyl cellulose ether 10%, the balance is water; component B is composed of the following components in mass percentage: low calcium aluminate cement 30%, quartz sand 68%, melamine superplasticizer 1%; Silicone powder defoamer 1%.

[0039] The preparation method of above-mentioned self-closing resin waterproof coating comprises the following steps:

[0040] 1) Prepare component A:

[0041] A: Take each component according to the mass percentage, then add the polyvinyl acetate resin into the water, mix and stir evenly, add 1 / 2 thickener, stir evenly, and let it stand for 18 hours to obtain the mixed material 1;

[0042] B: Add dibutyl ester to the mixed material 1 processed in step A, mix and stir evenly, then add the remaining 1 / 2 thickener, stir evenl...

Embodiment 2

[0049] A self-closing resin waterproof coating, made of A component and B component; wherein A component is composed of the following components in mass percentage: polyvinyl acetate resin 60%, dibutyl ester 10%, hydroxypropyl Methyl cellulose ether 8%, the balance is water; component B is composed of the following components in mass percentage: 25% low-calcium aluminate cement, 70% quartz sand, 2% melamine superplasticizer; Silicone powder defoamer 3%.

[0050] The preparation method of above-mentioned self-closing resin waterproof coating comprises the following steps:

[0051] 1) Prepare component A:

[0052] A: Take each component according to the mass percentage, then add the polyvinyl acetate resin into the water, mix and stir evenly, add 1 / 2 thickener, stir evenly, and let it stand for 15 hours to obtain the mixed material 1;

[0053] B: Add dibutyl ester to the mixed material 1 processed in step A, mix and stir evenly, then add the remaining 1 / 2 thickener, stir evenl...

Embodiment 3

[0060] A self-closing resin waterproof coating, made of A component and B component; wherein A component is composed of the following components in mass percentage: polyvinyl acetate resin 80%, dibutyl ester 6%, hydroxypropyl Methyl cellulose ether 12%, the balance is water; component B is composed of the following components in mass percentage: low calcium aluminate cement 39%, quartz sand 60%, melamine superplasticizer 0.5%; Silicone powder defoamer 0.5%.

[0061] The preparation method of above-mentioned self-closing resin waterproof coating comprises the following steps:

[0062] 1) Prepare component A:

[0063] A: Take each component according to the mass percentage, then add the polyvinyl acetate resin into the water, mix and stir evenly, add 1 / 2 thickener, stir evenly, and let it stand for 20 hours to obtain the mixed material 1;

[0064] B: Add dibutyl ester to the mixed material 1 processed in step A, mix and stir evenly, then add the remaining 1 / 2 thickener, stir e...

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Abstract

The invention relates to the technical field of waterproof coatings and particularly relates to a self-closing resin waterproof coating and a preparation method thereof. The self-closing resin waterproof coating has the beneficial effects that polyvinyl acetate resin and dibutyl ester in a component A generates hydration and crystallization reaction with low-calcium aluminate cement and quartz sand in a component B to form a coating film with good waterproof effect; the waterproof coating film generates cracks in the use process, and after being broken, the waterproof coating film can generateettringite again when meeting water, and then the cracks can be closed by self in the form of insoluble-matter crystallization; when a waterproof layer is pulled apart and the crack is less than 1mm,the waterproof coating film can repair the cracked part by self within 8-24 hours; simultaneously, the self-closing resin waterproof coating has good cohesiveness, ductility, stability, safety and constructability; by the preparation method of the creative waterproof coating, the ductility of the water coating film is further improved and the use property of the waterproof coating is enhanced.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to a self-closing resin waterproof coating and a preparation method thereof. Background technique [0002] With the development of industrialization, more and more buildings are constructed of reinforced concrete, which has higher performance requirements for anti-seepage and anti-corrosion. However, reinforced concrete is a heterogeneous porous material, and leakage and other phenomena often occur due to various reasons such as stress and temperature difference during the pouring process. This problem can be solved by brushing the surface with waterproof material. [0003] With the strengthening of environmental awareness, water-based environmentally friendly polymer cement waterproof coatings are widely used in the field of building waterproofing. At present, there are mainly three types of polymer cement waterproof coatings on the market, and their elongation at bre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D131/04C09D7/61C09D7/65C09D7/63
CPCC09D131/04C08L1/284C08K3/34C08K3/24C08K5/34922
Inventor 赵士棒
Owner BEIJING AOTAILI NEW TECH CO LTD
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