CN113265181A - Reflective heat-insulation primer-topcoat exterior wall coating and preparation method thereof - Google Patents
Reflective heat-insulation primer-topcoat exterior wall coating and preparation method thereof Download PDFInfo
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- CN113265181A CN113265181A CN202110544826.4A CN202110544826A CN113265181A CN 113265181 A CN113265181 A CN 113265181A CN 202110544826 A CN202110544826 A CN 202110544826A CN 113265181 A CN113265181 A CN 113265181A
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- topcoat
- primer
- exterior wall
- wall coating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a reflective heat-insulation primer-topcoat exterior wall coating and a preparation method thereof, wherein the coating is prepared from the following raw materials: water, a pH regulator, hydroxyethyl cellulose, a primer emulsion, a finish emulsion, a preservative, a wetting dispersant, a defoaming agent, titanium dioxide, mica powder, reflective heat-insulating titanium dioxide, an antifreeze agent and a thickening agent. According to the reflective heat-insulation primer-topcoat combined exterior wall coating, various emulsions and additives are screened and the dosage ratio is researched, so that the reflective heat-insulation primer-topcoat combined exterior wall coating is developed, and the reflective heat-insulation primer-topcoat combined exterior wall coating has the primer sealing property, the aging resistance of the topcoat and the reflective heat-insulation effect.
Description
Technical Field
The invention relates to the field of coatings, in particular to a reflective heat-insulating primer-topcoat exterior wall coating and a preparation method thereof.
Background
Because the traditional coating needs to paint the base layer with the primer and then the required finish coat, the coating not only consumes time and money, but also does not have the effects of energy conservation and emission reduction.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a reflective heat-insulation primer-topcoat exterior wall coating and a preparation method thereof.
In order to achieve the purpose, the invention adopts the main technical scheme that:
the reflective heat-insulation primer-topcoat exterior wall coating is prepared from the following raw materials in parts by weight:
further, the pH regulator is 2-amino-2-methyl-1-propanol.
Further, the hydroxyethyl cellulose is a non-ionic water-soluble cellulose ether.
Further, the primer emulsion is an anionic styrene acrylic polymer (model number is Badford RS308, pH value is 7-9, Brookfield viscosity is 1000-; the finishing paint emulsion is an anionic acrylic polymer (the type is Dow AC818, the pH value is 7-9, the Brookfield viscosity is 500-2000ps, and the solid content (%) is 49 +/-1).
Further, the preservative is 5-chloro-2-methyl-4-isothiazolin-3-one or a mixture of the two in any proportion; the wetting dispersant is polyacrylic acid ammonium salt or sodium polyacrylate salt; the defoaming agent is mineral oil or organic silicon defoaming agent.
Further, the titanium dioxide is rutile type titanium dioxide.
Further, the calcium carbonate is heavy calcium carbonate; the reflective heat-insulation titanium dioxide is near-infrared reflective nano titanium dioxide.
Further, the antifreeze is a glycerol ethoxylate antifreeze.
Further, the thickener is an associative polyurethane thickener.
A preparation method for preparing the reflective insulation primer-topcoat exterior wall coating comprises the following steps:
firstly, adding water into a dispersion cylinder, then adding a pH regulator and hydroxyethyl cellulose, and then dispersing for 7-10min at a stirring speed of 400-450 r/min;
then adding a preservative, a wetting dispersant and a defoaming agent, and then dispersing for 4-8min at the stirring speed of 350-450 r/min;
then adding titanium dioxide, mica powder, reflective heat-insulating titanium dioxide and heavy calcium carbonate, and dispersing for 15-20min at the stirring speed of 1200-1500 r/min;
then adding the primer emulsion and the finish emulsion at the stirring speed of 500-650r/min and continuously dispersing for 3-5 min;
and finally, adding the antifreeze agent and the thickening agent at the stirring speed of 450-500r/min, and continuously dispersing for 10-20min until the system is uniform and has no particles, thus obtaining the water-based organic fertilizer.
The invention has the beneficial effects that: the invention has the advantages of primer sealing property, aging resistance of finish paint and reflective heat insulation effect.
The coating disclosed by the invention not only reduces the construction of the primer, but also has the effect of reflecting sunlight and infrared rays, so that the purposes of saving time and labor, saving energy and reducing emission are achieved, the requirements of sealing a base material and resisting aging are met by mutually matching the primer and the finish emulsion, and the effect of saving energy and reducing emission is achieved by introducing near-infrared reflection nano titanium dioxide. Therefore, the invention is a product which is urgently needed by the market.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention by way of specific embodiments thereof.
The reflective heat-insulation primer-topcoat exterior wall coating is prepared from the following raw materials in parts by weight:
in this embodiment, the water is deionized water, which serves as a dispersion for dispersing the pigment and filler, and also serves as a carrier for thickening the thickener.
Further, the pH regulator is 2-amino-2-methyl-1-propanol which mainly plays a role in maintaining and regulating the pH value of the whole system.
Further, the hydroxyethyl cellulose is a non-ionic water-soluble cellulose ether, which provides primarily its initial viscosity while providing storage stability for later periods of the coating.
Furthermore, the primer and finish emulsion is modified styrene-acrylic or pure acrylic emulsion, is a main film forming substance of the coating, and provides sealing property, aging resistance and the like.
Furthermore, the preservative is a mixture of 5-chloro-2-methyl-4-isothiazoline-3-ketone and 2-methyl-4-isothiazoline-3-ketone in any proportion, and mainly plays a role in corrosion prevention and sterilization on the coating, so that the long-term storage stability of the coating is ensured; the wetting dispersant is ammonium polyacrylate or sodium polyacrylate, is mainly used for quickly wetting a coating system and is beneficial to uniformly dispersing pigment and filler into the system; the defoaming agent is mineral oil or organic silicon defoaming agent, the generation of bubbles in the proofing process is inhibited, the surface tension of the system is changed, the generated bubbles are eliminated, and the compactness of the product system is improved.
Furthermore, the titanium dioxide is rutile titanium dioxide which is mainly used as a pigment filler to fill the coating and improve the glossiness of the coating; the mica powder and the ground limestone are used as pigments and fillers, and play roles in filling and reducing cost. The reflective heat-insulation titanium dioxide is specially treated near-infrared reflective nano titanium dioxide and mainly plays a role in reflecting sunlight.
Furthermore, the antifreeze agent is a glycerol ethoxylate antifreeze agent, so that the storage property of the coating at low temperature is ensured; the thickening agent is an associated polyurethane thickening agent, provides certain leveling property for the coating, and simultaneously changes the viscosity of the product, so that the coating has good application property.
A preparation method of a reflective heat-insulation primer-topcoat exterior wall coating comprises the following steps:
s1, adding 16.2-19.3 parts of water into a dispersion cylinder, sequentially adding 0.1-0.15 part of PH regulator and 0.3-0.4 part of hydroxyethyl cellulose, controlling the rotation speed of the dispersion cylinder at 450r/min, and continuously dispersing for 7-10 min;
s2, slowly adding 0.15-0.2 part of preservative, 0.8-1 part of wetting dispersant and 0.4-0.6 part of defoaming agent, adjusting the rotating speed of a dispersion cylinder to 350-450r/min, and continuously dispersing for 4-8 min;
s3, adding 16-20 parts of titanium dioxide, 2-4 parts of mica powder, 3-6 parts of reflective heat-insulating titanium dioxide and 10-15 parts of heavy calcium carbonate in sequence, adjusting the rotating speed of a dispersion cylinder to 1200-1500r/min, and continuously dispersing for 15-20 min;
s4, keeping the rotating speed of the dispersion cylinder at 650r/min and slowly adding 15-20 parts of primer emulsion and 21-26 parts of finish emulsion for continuous dispersion for 3-5 min;
and S5, reducing the rotating speed of the dispersion cylinder to below 450-one and 500r/min, adding 0.8-01 parts of antifreeze agent and 0.2-0.35 parts of thickening agent, and continuously dispersing for 10-20min by the dispersion cylinder until the system is a uniform white mixture without particles.
The raw material brands and models for the following examples are as follows:
pH regulators: adopts the modesty AMP-95 which is sold on the market;
hydroxyethyl cellulose: adopts Suanqiang 250HBR which is commercially available;
primer emulsion: adopting Badfu RS-308 primer emulsion which is commercially available;
finishing paint emulsion: adopts Dow AC-818 pure acrylic emulsion which is commercially available;
preservative: KSG 103ST, a product of Guangdong Dimei biotechnology Co., Ltd, commercially available;
wetting and dispersing agent: rohm and Hass CA-2500, commercially available;
defoaming agent: basf FoamStar ST 2410, commercially available;
titanium dioxide: rutile type R-996 titanium dioxide of the Tetrapython group is commercially available;
mica powder: GA-6 mica powder sold in Chuzhou Gerui mining company Limited is adopted;
calcium carbonate: adopting Guangfu Jian material refinement Co., Ltd CC-1000, which is available on the market;
reflection heat insulation titanium dioxide: modified near-infrared reflection nano titanium dioxide prepared by Hensman company
Is sold on the market;
an antifreeze agent: FT100 high-boiling antifreeze agent of Rodiya company is adopted and is commercially available;
thickening agent: the Rohm and Hass RM2020 polyurethane thickening agent is adopted and is commercially available.
Example 1
The reflective heat-insulation primer-topcoat exterior wall coating comprises the following specific raw materials in parts by weight:
the manufacturing process comprises the following steps:
(1) adding 16.2 parts of water into a dispersion tank, sequentially adding 0.1 part of pH regulator and 0.3 part of hydroxyethyl cellulose, and continuously dispersing for 7min at the rotating speed of 400 r/min;
(2) slowly adding 0.2 part of preservative, 0.8 part of wetting dispersant and 0.4 part of defoaming agent, adjusting the rotating speed to 350r/min, and continuously dispersing for 4 min;
(3) sequentially adding 20 parts of titanium dioxide, 3 parts of reflective heat-insulating titanium dioxide, 2 parts of mica powder and 15 parts of calcium carbonate, adjusting the rotating speed to 1200r/min, and continuously dispersing for 15 min;
(4) keeping the rotating speed at 500r/min, sequentially adding 15 parts of primer emulsion and 26 parts of finish emulsion, and continuously dispersing for 3 min;
(5) and reducing the rotating speed to 450r/min, adding 0.8 part of antifreeze agent and 0.2 part of thickening agent, and continuously dispersing for 10min until the system is a uniform and particle-free white mixture.
Example 2
The reflective heat-insulation primer-topcoat exterior wall coating comprises the following specific raw materials in parts by weight:
the manufacturing process comprises the following steps:
(1) adding 17.65 parts of water into a dispersion cylinder, sequentially adding 0.15 part of PH regulator and 0.35 part of hydroxyethyl cellulose, and continuously dispersing for 10min at the rotating speed of 450 r/min;
(2) slowly adding 0.15 part of preservative, 0.9 part of wetting dispersant and 0.5 part of defoaming agent, adjusting the rotating speed to 450r/min, and continuously dispersing for 8 min;
(3) sequentially adding 18 parts of titanium dioxide, 4 parts of reflective heat-insulating titanium dioxide, 3 parts of mica powder and 13 parts of calcium carbonate, adjusting the rotating speed to 1500r/min, and continuously dispersing for 20 min;
(4) keeping the rotating speed of 650r/min, sequentially adding 17 parts of primer emulsion and 24 parts of finish emulsion, and continuously dispersing for 5 min;
(5) and reducing the rotating speed to 500r/min, adding 1 part of antifreeze agent and 0.3 part of thickening agent, and continuously dispersing for 20min until the system is a uniform white mixture without particles.
Example 3
The reflective heat-insulation primer-topcoat exterior wall coating comprises the following specific raw materials in parts by weight:
the manufacturing process comprises the following steps:
(1) adding 18.35 parts of water into a dispersion tank, sequentially adding 0.15 part of PH regulator and 0.4 part of hydroxyethyl cellulose, and continuously dispersing for 8min at the rotating speed of 420 r/min;
(2) slowly adding 0.2 part of preservative, 1 part of wetting dispersant and 0.6 part of defoaming agent, adjusting the rotating speed to 400r/min, and continuously dispersing for 5 min;
(3) sequentially adding 16 parts of titanium dioxide, 5 parts of reflective heat-insulating titanium dioxide, 4 parts of mica powder and 12 parts of calcium carbonate, adjusting the rotating speed to 1300r/min, and continuously dispersing for 18 min;
(4) keeping the rotation speed of 550r/min, sequentially adding 18 parts of primer emulsion and 23 parts of finish emulsion, and continuously dispersing for 4 min;
(5) and reducing the rotating speed to 460r/min, adding 1 part of antifreeze agent and 0.3 part of thickening agent, and continuously dispersing for 15min until the system is a uniform white mixture without particles.
Example 4
The reflective heat-insulation primer-topcoat exterior wall coating comprises the following specific raw materials in parts by weight:
the manufacturing process comprises the following steps:
(1) adding 19.3 parts of water into a dispersion cylinder, sequentially adding 0.15 part of PH regulator and 0.4 part of hydroxyethyl cellulose, and continuously dispersing for 7-10min at the rotating speed of 420 r/min;
(2) slowly adding 0.2 part of preservative, 1 part of wetting dispersant and 0.6 part of defoaming agent, adjusting the rotating speed to 400r/min, and continuously dispersing for 5 min;
(3) sequentially adding 16 parts of titanium dioxide, 6 parts of reflective heat-insulating titanium dioxide, 4 parts of mica powder and 10 parts of calcium carbonate, adjusting the rotating speed to 1300r/min, and continuously dispersing for 16 min;
(4) keeping the rotation speed of 550r/min, sequentially adding 20 parts of primer emulsion and 21 parts of finish emulsion, and continuously dispersing for 4 min;
(5) and reducing the rotating speed to 460r/min, adding 1 part of antifreeze agent and 0.35 part of thickening agent, and continuously dispersing for 15min until the system is a uniform white mixture without particles.
The paint product belongs to the field of building paints, and has primer, finish and reflective heat insulation effects, so that paint films are tested according to the related performances of GB/T9755 synthetic resin emulsion exterior wall paints, JG/T210-2018 building interior and exterior wall primers and GB/T25261-2018 building reflective heat insulation paints, and the test results are shown in the following tables 1 and 1
As can be seen from Table 1, the reflective insulation and primer-topcoat combined exterior wall coating provided by the invention is tested according to the relevant performances of GB/T9755 synthetic resin emulsion exterior wall coatings, JG/T210-2018 primers for interior and exterior walls of buildings and GB/T25261-2018 reflective insulation coatings for buildings, wherein the best performance is obtained in example 3.
In conclusion, in the embodiments 1 to 4 of the reflective-thermal-insulation-primer-topcoat exterior wall coating, the key performances of the standards according to GB/T9755 synthetic resin emulsion exterior wall coating, JG/T210-2018 primer for building interior and exterior walls, GB/T25261-2018 reflective-thermal-insulation coating for building and the like are all in accordance, and the other performances are not abnormal according to the above standard tests.
The reflective heat-insulation bottom-surface integrated exterior wall coating has the performances of the primer and the finish, can reduce the working procedures of coating construction, achieves the effects of high efficiency and saving, and simultaneously introduces the near-infrared reflective nano titanium dioxide which can well reflect sunlight, thereby achieving the effects of energy conservation and emission reduction.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (10)
1. The reflective heat-insulation primer-topcoat exterior wall coating is characterized by being prepared from the following components in parts by weight:
2. the reflective insulation primer-topcoat exterior wall coating of claim 1, wherein the PH modifier is 2-amino-2-methyl-1-propanol.
3. The reflective insulation primer-topcoat exterior wall coating of claim 1, wherein the hydroxyethyl cellulose is a non-ionic water-soluble cellulose ether.
4. The reflective thermal insulation primer-topcoat exterior wall coating of claim 1, wherein the primer emulsion is an anionic styrene acrylic polymer; the finishing paint emulsion is an anionic acrylic polymer.
5. The reflective insulation primer-topcoat exterior wall coating of claim 1, wherein the preservative is 5-chloro-2-methyl-4-isothiazolin-3-one or a mixture of the two in any ratio; the wetting dispersant is polyacrylic acid ammonium salt or sodium polyacrylate salt; the defoaming agent is mineral oil or organic silicon defoaming agent.
6. The reflective thermal insulation primer-topcoat exterior wall coating of claim 1, wherein the titanium dioxide is rutile titanium dioxide.
7. The reflective thermal insulation primer-topcoat exterior wall coating of claim 1, wherein the calcium carbonate is ground calcium carbonate; the reflective heat-insulation titanium dioxide is near-infrared reflective nano titanium dioxide.
8. The reflective insulation primer-topcoat exterior wall coating of claim 1, wherein the antifreeze agent is a glycerol ethoxylate antifreeze agent.
9. The reflective insulation primer-topcoat exterior wall coating of claim 1, wherein the thickener is an associative polyurethane thickener.
10. A method for preparing the reflective insulation primer-topcoat exterior wall coating of any one of claims 1 to 9, comprising the steps of:
firstly, adding water into a dispersion cylinder, then adding a pH regulator and hydroxyethyl cellulose, and then dispersing for 7-10min at a stirring speed of 400-450 r/min;
then adding a preservative, a wetting dispersant and a defoaming agent, and then dispersing for 4-8min at the stirring speed of 350-450 r/min;
then adding titanium dioxide, mica powder, reflective heat-insulating titanium dioxide and calcium carbonate, and dispersing for 15-20min at the stirring speed of 1200-1500 r/min;
then adding the primer emulsion and the finish emulsion at the stirring speed of 500-650r/min and continuously dispersing for 3-5 min;
and finally, adding the antifreeze agent and the thickening agent at the stirring speed of 450-500r/min, and continuously dispersing for 10-20min until the system is uniform and has no particles, thus obtaining the water-based organic fertilizer.
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Application publication date: 20210817 |