Environment-friendly high-adhesion building primer and preparation method thereof

Abstract

The invention provides environment-friendly high-adhesion building primer and a preparation method thereof. The primer comprises a polymer emulsion, a potassium silicate solution, a pH regulator, a freeze-thaw stabilizer, a dispersing agent, a wetting agent, a defoaming agent, pigment, a thickening agent, a coalescing agent, a base material wetting agent and water. The potassium silicate solutionand the cement in the base material belong to silicate inorganic substances and have very good compatibility, and the molecular-level potassium silicate solution can easily wet and permeate into capillary holes of the base material under low surface tension, so that the alkali efflorescence resistance of the primer is improved, the base material is reinforced, and the bonding strength of the basematerial and the primer is improved. Besides, the primer is excellent in performance, all raw materials adopted are environment-friendly and low-odor, harmful substances such as VOC, formaldehyde, heavy metals, APEO and a biocide are not added artificially, the produced product is non-toxic and odorless, and therenewable potassium silicate solution is used as a film forming substance.

Description

technical field

[0001] The application relates to the technical field of architectural coatings, in particular to a green and environment-friendly high-adhesion architectural primer and a preparation method thereof. Background technique

[0002] With the promulgation and implementation of "GB / T 35602-2017 Green Product Evaluation - Coatings", people pay more attention to the limits of harmful substances such as VOC and formaldehyde in coatings. In terms of exterior wall decoration, high-rise buildings and exterior wall insulation severely restrict the use of heavy decorative materials such as stone and wall bricks. Decorative effects such as imitation wall bricks and imitation granite are gradually recognized by the majority of owners. When decorative materials such as imitation wall bricks and imitation granite are used for exterior wall decoration, a primer needs to be applied on the surface of the base layer of the exterior wall, and the primer needs to be divided into mu...

Examples

Embodiment 1

[0039] The environment-friendly anti-masking paper tearing green environment-friendly high-adhesion architectural primer is composed of base material, pigment, auxiliary agent and water, and is specifically composed of the following components by weight:

[0040]

[0041] The embodiment of the application is prepared according to the following process steps:

[0042]a. First add 40.7kg of water and thickener (hydroxyethyl cellulose ether such as 250HBR) into the dispersion tank, stir for 5-10 minutes, then add a pH regulator (potassium methyl silicate), and stir for 10-20 minutes, The thickener is completely dissolved, and the pH value reaches 9.5-10;

[0043] b. Add dispersant (such as Dow acrylic acid sodium salt dispersant OROTAN kuaiyi), wetting agent (BD-405), freeze-thaw stabilizer (FT-893), defoamer (Dow polyether modified silicone DC 8590 ), stirring for 5 to 10 minutes;

[0044] c. Add the pigment iron oxide black, disperse at high speed at 1500-2500rpm, and grin...

Embodiment 2

[0052] The green environment-friendly high-adhesion primer for construction is composed of components such as base material, pigment, auxiliary agent and water, and it is specifically composed of the following components in parts by weight:

[0053]

[0054] The embodiment of the application is prepared according to the following process steps:

[0055] a. First add 18.4kg of water and thickener (hydroxyethyl cellulose ether such as Shin-Etsu HS30000YP2) into the dispersion tank, stir for 5 to 10 minutes, then add a pH regulator (such as Angus organic amine VOX1000), and stir for 10 to 10 minutes. After 20 minutes, the thickener is completely dissolved, and the pH value reaches 9.5-10;

[0056] b. Add dispersant (such as Dow acrylate ammonium salt dispersant OROTAN 1124), wetting agent (BD-405), freeze-thaw stabilizer (FT-893), 1 / 2 defoamer (Santa Nopco Mineral Oil NXZ ), stirring for 5 to 10 minutes;

[0057] c. Add the pigments rutile titanium dioxide and iron oxide bla...

Embodiment 3

[0065] The green environment-friendly high-adhesion primer for construction is composed of components such as base material, pigment, auxiliary agent and water, and it is specifically composed of the following components in parts by weight:

[0066]

[0067] The embodiment of the application is prepared according to the following process steps:

[0068] a. First add 37.7kg of water and thickener (hydrophobic modified hydroxyethyl cellulose ether such as HE10K) into the dispersion tank, stir for 5-10 minutes, then add a pH regulator (such as potassium hydroxide), and stir for 10-20 minutes Minutes, the thickener is completely dissolved, and the pH value reaches 9.5-10;

[0069] b. Add dispersant (such as Dow acrylate sodium salt dispersant OROTAN 731A), wetting agent (EF-406), freeze-thaw stabilizer (FT-893), defoamer (San Nopco Mineral Oil NXZ), and stir 5-10 minutes;

[0070] c. Add the pigments rutile titanium dioxide, iron oxide red and iron oxide black respectively, d...

technical field

[0001] The application relates to the technical field of architectural coatings, in particular to a green and environment-friendly high-adhesion architectural primer and a preparation method thereof. Background technique

[0002] With the promulgation and implementation of "GB / T 35602-2017 Green Product Evaluation - Coatings", people pay more attention to the limits of harmful substances such as VOC and formaldehyde in coatings. In terms of exterior wall decoration, high-rise buildings and exterior wall insulation severely restrict the use of heavy decorative materials such as stone and wall bricks. Decorative effects such as imitation wall bricks and imitation granite are gradually recognized by the majority of owners. When decorative materials such as imitation wall bricks and imitation granite are used for exterior wall decoration, a primer needs to be applied on the surface of the base layer of the exterior wall, and the primer needs to be divided into mu...

Examples

Embodiment 1

[0039] The environment-friendly anti-masking paper tearing green environment-friendly high-adhesion architectural primer is composed of base material, pigment, auxiliary agent and water, and is specifically composed of the following components by weight:

[0040]

[0041] The embodiment of the application is prepared according to the following process steps:

[0042]a. First add 40.7kg of water and thickener (hydroxyethyl cellulose ether such as 250HBR) into the dispersion tank, stir for 5-10 minutes, then add a pH regulator (potassium methyl silicate), and stir for 10-20 minutes, The thickener is completely dissolved, and the pH value reaches 9.5-10;

[0043] b. Add dispersant (such as Dow acrylic acid sodium salt dispersant OROTAN kuaiyi), wetting agent (BD-405), freeze-thaw stabilizer (FT-893), defoamer (Dow polyether modified silicone DC 8590 ), stirring for 5 to 10 minutes;

[0044] c. Add the pigment iron oxide black, disperse at high speed at 1500-2500rpm, and grin...

Embodiment 2

[0052] The green environment-friendly high-adhesion primer for construction is composed of components such as base material, pigment, auxiliary agent and water, and it is specifically composed of the following components in parts by weight:

[0053]

[0054] The embodiment of the application is prepared according to the following process steps:

[0055] a. First add 18.4kg of water and thickener (hydroxyethyl cellulose ether such as Shin-Etsu HS30000YP2) into the dispersion tank, stir for 5 to 10 minutes, then add a pH regulator (such as Angus organic amine VOX1000), and stir for 10 to 10 minutes. After 20 minutes, the thickener is completely dissolved, and the pH value reaches 9.5-10;

[0056] b. Add dispersant (such as Dow acrylate ammonium salt dispersant OROTAN 1124), wetting agent (BD-405), freeze-thaw stabilizer (FT-893), 1 / 2 defoamer (Santa Nopco Mineral Oil NXZ ), stirring for 5 to 10 minutes;

[0057] c. Add the pigments rutile titanium dioxide and iron oxide bla...

Embodiment 3

[0065] The green environment-friendly high-adhesion primer for construction is composed of components such as base material, pigment, auxiliary agent and water, and it is specifically composed of the following components in parts by weight:

[0066]

[0067] The embodiment of the application is prepared according to the following process steps:

[0068] a. First add 37.7kg of water and thickener (hydrophobic modified hydroxyethyl cellulose ether such as HE10K) into the dispersion tank, stir for 5-10 minutes, then add a pH regulator (such as potassium hydroxide), and stir for 10-20 minutes Minutes, the thickener is completely dissolved, and the pH value reaches 9.5-10;

[0069] b. Add dispersant (such as Dow acrylate sodium salt dispersant OROTAN 731A), wetting agent (EF-406), freeze-thaw stabilizer (FT-893), defoamer (San Nopco Mineral Oil NXZ), and stir 5-10 minutes;

[0070] c. Add the pigments rutile titanium dioxide, iron oxide red and iron oxide black respectively, d...

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