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Formula and preparation method of special high-performance concrete substrate seal primer for heat-insulating waterproof coating

A technology for concrete base material and waterproof coating, applied in the direction of primer, coating, etc., can solve the problems of troublesome construction, slow drying speed, unenvironmental protection, etc., and achieve the effect of preventing corrosion, strong permeability and prolonging service life.

Pending Publication Date: 2020-10-16
哈尔滨猎客科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional concrete sealer primers are mostly solvent-based or two-component
Not environmentally friendly, slow drying and troublesome construction

Method used

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  • Formula and preparation method of special high-performance concrete substrate seal primer for heat-insulating waterproof coating
  • Formula and preparation method of special high-performance concrete substrate seal primer for heat-insulating waterproof coating
  • Formula and preparation method of special high-performance concrete substrate seal primer for heat-insulating waterproof coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A high-performance sealing primer formula for concrete substrates specially used for heat-insulating and waterproof coatings, comprising the following components by weight:

[0044]

[0045]

[0046] The small-molecule acrylic alkali-resistant emulsion is an emulsion composed of small-molecule permeable styrene / acrylate copolymers.

[0047] The high-molecular-weight acrylic emulsion is styrene-acrylate with a molecular weight exceeding 400 million Daltons.

[0048] Both the small-molecular acrylic acid alkali-resistant emulsion and the large-molecular-weight acrylic emulsion in this embodiment contain acrylic acid, that is, the film-forming components of the primer in this embodiment are the same, that is, a single component. The molecular weight of the two single components is different. The fine particle size of the small molecular acrylic acid alkali-resistant emulsion can make the product have excellent permeability and adhesion. The large molecular weight acr...

Embodiment 2

[0065] A high-performance sealing primer formula for concrete substrates specially used for heat-insulating and waterproof coatings, comprising the following components by weight:

[0066]

[0067]

[0068] The small-molecule acrylic alkali-resistant emulsion is an emulsion composed of small-molecule permeable styrene / acrylate copolymers.

[0069] The high molecular weight acrylic acid emulsion is an acrylic acid hydrosol with a molecular weight exceeding 400 million Daltons.

[0070] The active sodium silicate solution is a component that can undergo a substitution reaction with residual calcium and magnesium ions in concrete to form a chemically bonded cement structure Si-Ca-O and / or Si-Mg-O.

[0071] The active sodium silicate solution also includes nanogel.

[0072] The antifreeze includes polyhydric alcohol.

[0073] The polyol includes ethylene glycol.

[0074] The defoamers include emulsions of aliphatic hydrocarbons and polyether organic compounds.

[0075] T...

Embodiment 3

[0084] A high-performance sealing primer formula for concrete substrates specially used for heat-insulating and waterproof coatings, comprising the following components by weight:

[0085]

[0086] The small-molecule acrylic alkali-resistant emulsion is an emulsion composed of small-molecule permeable styrene / acrylate copolymers.

[0087] The high-molecular-weight acrylic emulsion is styrene-acrylate, acrylate and acrylic acid hydrosol with a molecular weight exceeding 400 million Daltons.

[0088] The active sodium silicate solution is a component that can undergo a substitution reaction with residual calcium and magnesium ions in concrete to form a chemically bonded cement structure Si-Ca-O and / or Si-Mg-O.

[0089] The antifreeze includes polyhydric alcohol.

[0090] The polyols include ethylene glycol and propylene glycol.

[0091] The defoamers include mineral oil silicon-based mixtures, emulsions of aliphatic hydrocarbons and polyether organic compounds.

[0092] Th...

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Abstract

The invention discloses a formula of a special high-performance concrete substrate seal primer for a heat-insulating waterproof coating. The formula comprises the following components in parts by weight: 25-35 parts of deionized water; 0.1 to 0.5 part of a wetting agent; 45-55 parts of small molecular acrylic acid alkali-resistant emulsion; 15-25 parts of high molecular weight acrylic emulsion; 15to 25 parts of an active solution; 1-3 parts of an anti-freezing agent; 0.7 to 0.9 part of a defoaming agent; 1.5 to 2.0 parts of a coalescing agent; and 0.6-1.2 parts of a mildew inhibitor. The invention further discloses a preparation method of the formula. The seal primer has an excellent anti-foaming performance in a long-term soaking environment, and does not lose the sealing effect due to soaking and foaming within 3-5 years. The seal primer has good permeability to a concrete substrate, and can be easily combined with fine cracks and capillary gaps in a concrete roof to form a firm waterproof layer.

Description

technical field [0001] The invention relates to a high-performance sealing primer formula for concrete substrates specially used for heat-insulating and waterproof coatings and a preparation method thereof, belonging to the technical field of concrete primers. Background technique [0002] Now the construction base material is mostly cement mortar or concrete base material. It is characterized by multiple voids and strong alkalinity. Among them, the porous structure makes it highly water-absorbent, which makes the surface of the coating film not smooth enough, which may cause the paint film to dry too quickly and cause the topcoat to crack. Strong alkalinity can lead to chemical degradation of the resin in the coating, accelerate the aging of the paint film, and reduce the service life of the coating. Moreover, the current air pollution and environmental factors, the erosion of the substrate by acid, alkali, salt and other media with water as the carrier, will cause carbon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D125/14C09D133/04C09D7/61C09D7/63
CPCC08K2201/011C08L2205/025C09D5/002C09D125/14C09D7/61C09D7/63C08L25/14C08K13/02C08K3/34C08K5/053C08L33/04
Inventor 张鑫宇王皓丛研臧云松张波李伟良佘志强吴征
Owner 哈尔滨猎客科技有限公司
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