CN113956738A - Weather-resistant environment-friendly coating and preparation method thereof - Google Patents
Weather-resistant environment-friendly coating and preparation method thereof Download PDFInfo
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- CN113956738A CN113956738A CN202111362309.1A CN202111362309A CN113956738A CN 113956738 A CN113956738 A CN 113956738A CN 202111362309 A CN202111362309 A CN 202111362309A CN 113956738 A CN113956738 A CN 113956738A
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- silane coupling
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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
-
- 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
- C09D125/00—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 an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
- C09D125/02—Homopolymers or copolymers of hydrocarbons
- C09D125/04—Homopolymers or copolymers of styrene
- C09D125/08—Copolymers of styrene
- C09D125/14—Copolymers of styrene with unsaturated esters
-
- 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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- 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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
Abstract
The invention relates to a weather-resistant environment-friendly coating which comprises the following components: the composite material is prepared from compound silane coupling agent modified shell powder, pure acrylic emulsion, styrene-acrylic emulsion, hydroxypropyl methyl cellulose, polyethylene glycol, turpentine, triethylene tetramine, chitosan, propylene glycol, polyoxyethylene lauryl ether and deionized water. On the basis of the prior art, the invention successfully solves the technical problem that the shell powder has poor adhesive force although having the air purifying effect when being applied to a coating system in the prior art through the compound screening of the coupling agent and the optimization of the type of the shell powder.
Description
Technical Field
The invention belongs to the technical field of coatings.
Background
The architectural coating industry was still in the infancy in the last 60 th century. The exterior wall coating is prepared by mixing mortar prepared by mixing cement, clay and lime with pigment and stirring. In the 80 s, functional coatings such as waterproof coatings, fireproof coatings, heat-insulating coatings and the like are rapidly developed. The production line of the acrylic building coating in the 90 s accelerates to improve the production and scientific research level of the building coating industry. Wall coating, waterproof coating, terrace coating, functional coating and the like belong to the category of building coating. Architectural coatings can be classified by differences in film-forming materials, dispersion, morphology, color, and decorative function. (1) Variability of film-forming material: architectural coatings can be classified as organic coatings, inorganic coatings, and hybrid coatings; (2) dispersoid variability: the building coating can be divided into solvent type coating, water-based coating and solvent-free type coating; (3) site-of-use variability: the building coating can be divided into functional coatings such as wall coating, waterproof coating, floor coating and the like; they can be classified into varnishes and paints according to their color, and also into architectural coatings according to their decorative function.
The air purifying material is a combination of a carrier material and a photocatalyst, and is a substance with adsorption and degradation effects, such as: the prepared diatomite coating can absorb and remove odor gas so as to achieve the aim of purifying indoor air, but the diatomite belongs to rare non-renewable resources; the shell powder is used as a base material of an air purification material to prepare the shell powder wall coating, wherein the shell powder with a porous structure can absorb organic gases such as formaldehyde, toluene and the like, and can effectively purify air.
Although the shell powder has the effect of purifying air, the poor adhesion is still a technical problem to be solved urgently.
Patent document cn201610209420.x discloses an environment-friendly exterior wall coating containing shell powder, which mainly has the following problems: (1) the inorganic filler comprises aluminum hydroxide, calcium oxide, magnesium silicate, zeolite powder, nano calcium carbonate, titanium dioxide and the like besides the shell powder, so that the poor adhesion effect of the coating is avoided, but the inorganic fillers also prevent the shell powder from exerting the effect and cannot fully exert the purification effect of the shell powder; (2) the components are complex and various, and the manufacturing cost is high; (3) the adhesion effect still needs to be further improved.
Based on the technical problems, the invention provides a weather-resistant environment-friendly coating.
Disclosure of Invention
In order to solve the technical problems, the invention provides a weather-resistant environment-friendly coating which comprises the following components in parts by weight:
40-50 parts of compound silane coupling agent modified shell powder;
30-40 parts of pure acrylic emulsion;
30-40 parts of styrene-acrylic emulsion;
10-20 parts of hydroxypropyl methyl cellulose;
1-3 parts of polyethylene glycol;
4-6 parts of triethylene tetramine;
1-3 parts of turpentine;
6-8 parts of chitosan;
4-6 parts of propylene glycol;
7-9 parts of polyoxyethylene lauryl ether;
35-45 parts of deionized water.
Preferably, the compound silane coupling agent modified shell powder is prepared by the following method:
(1) pulverizing shell to 0.5-1.5mm to obtain product A;
(2) calcining the product A at 1200 ℃ for 60min, and cooling to obtain a product B;
(3) carrying out nano crushing treatment on the product B to obtain a product C;
(4) mixing the compound silane coupling agent and absolute ethyl alcohol, and performing ultrasonic dispersion in a water bath to obtain a product D;
(5) and adding the product C into the product D, stirring for 60min in an oil bath kettle at 110 ℃, and filtering, washing and drying to obtain the compound silane coupling agent modified shell powder.
Preferably, the amount of the composite silane coupling agent accounts for 5-10 wt% of the product C.
Preferably, the shell powder is marine clam shell.
Preferably, the compound silane coupling agent is obtained by compounding beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane and a silane coupling agent with a formula (1) according to the mass ratio of 1: 1;
the invention also provides a preparation process of the weather-resistant environment-friendly coating, which comprises the following steps:
mixing and stirring deionized water, hydroxypropyl methyl cellulose, polyethylene glycol and chitosan, adding the compound silane coupling agent modified shell powder after uniformly stirring, continuously stirring, adding turpentine, polyoxyethylene lauryl ether, propylene glycol, pure acrylic emulsion, styrene-acrylic emulsion and triethylenetetramine after uniformly stirring, and obtaining the weather-resistant environment-friendly coating after uniformly stirring.
The invention has the following beneficial effects:
compared with unmodified shell powder, the modified shell powder can effectively improve the adhesive force of a coating system; under the condition of the same total dosage, compared with the use of a single silane coupling agent, the compound coupling agent used in the invention has the technical effect of synergistic effect (1+1> 2); the synergistic technical effect does not occur in the compounding of any two different silane coupling agents, which shows that the maximum synergistic effect can be exerted only by using the compounded silane coupling agent defined in the invention; this modification effect is very dependent on the kind of shell powder, i.e., marine clam shell, and when the marine clam shell is replaced with other shell powder commonly used in the art, a desired adhesion effect cannot be obtained.
Detailed Description
The following examples further describe embodiments of the present invention in detail. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
A weather-resistant environment-friendly coating comprises the following components in parts by weight:
40 parts of compound silane coupling agent modified shell powder;
30 parts of pure acrylic emulsion;
30 parts of styrene-acrylic emulsion;
10 parts of hydroxypropyl methyl cellulose;
1 part of polyethylene glycol;
4 parts of triethylene tetramine;
1 part of turpentine;
6 parts of chitosan;
4 parts of propylene glycol;
7 parts of polyoxyethylene lauryl ether;
and 35 parts of deionized water.
The compound silane coupling agent modified shell powder is prepared by the following method:
(1) pulverizing shell to 0.5-1.5mm to obtain product A;
(2) calcining the product A at 1200 ℃ for 60min, and cooling to obtain a product B;
(3) carrying out nano crushing treatment on the product B to obtain a product C;
(4) mixing the compound silane coupling agent and absolute ethyl alcohol, and performing ultrasonic dispersion in a water bath to obtain a product D;
(5) and adding the product C into the product D, stirring for 60min in an oil bath kettle at 110 ℃, and filtering, washing and drying to obtain the compound silane coupling agent modified shell powder.
The amount of the composite silane coupling agent accounts for 5 wt% of the product C.
The shell powder is marine clam shell.
The compound silane coupling agent is obtained by compounding beta- (3, 4-epoxy cyclohexyl) ethyl trimethoxy silane and a silane coupling agent with a formula (1) according to a mass ratio of 1: 1;
the preparation process of the weather-resistant environment-friendly coating comprises the following steps:
mixing and stirring deionized water, hydroxypropyl methyl cellulose, polyethylene glycol and chitosan, adding the compound silane coupling agent modified shell powder after uniformly stirring, continuously stirring, adding turpentine, polyoxyethylene lauryl ether, propylene glycol, pure acrylic emulsion, styrene-acrylic emulsion and triethylenetetramine after uniformly stirring, and obtaining the weather-resistant environment-friendly coating after uniformly stirring.
Example 2
A weather-resistant environment-friendly coating comprises the following components in parts by weight:
45 parts of compound silane coupling agent modified shell powder;
35 parts of pure acrylic emulsion;
35 parts of styrene-acrylic emulsion;
15 parts of hydroxypropyl methyl cellulose;
2 parts of polyethylene glycol;
5 parts of triethylene tetramine;
2 parts of turpentine;
7 parts of chitosan;
5 parts of propylene glycol;
8 parts of polyoxyethylene lauryl ether;
40 parts of deionized water.
The amount of the composite silane coupling agent accounts for 7.5 wt% of the product C.
Otherwise, the same procedure as in example 1 was repeated.
Example 3
A weather-resistant environment-friendly coating comprises the following components in parts by weight:
50 parts of compound silane coupling agent modified shell powder;
40 parts of pure acrylic emulsion;
40 parts of styrene-acrylic emulsion;
20 parts of hydroxypropyl methyl cellulose;
3 parts of polyethylene glycol;
6 parts of triethylene tetramine;
3 parts of turpentine;
8 parts of chitosan;
6 parts of propylene glycol;
9 parts of lauryl alcohol polyoxyethylene ether;
45 parts of deionized water.
The amount of the composite silane coupling agent accounts for 10 wt% of the product C.
Otherwise, the same procedure as in example 1 was repeated.
Comparative example 1
The modified shell powder of the compound silane coupling agent is replaced by unmodified shell powder, and the rest is the same as that in the example 2.
Comparative example 2
Beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane was replaced with the silane coupling agent KH560, and the other procedure was the same as in example 2.
Comparative example 3
The silane coupling agent having formula (1) was replaced with KH550, and the other was the same as in example 2.
Comparative example 4
The compound silane coupling agent is replaced by only beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane, and the rest is the same as that in the example 2.
Comparative example 5
The compound silane coupling agent is replaced by only selecting the silane coupling agent with the formula (1), and the rest is the same as the example 2.
Comparative example 6
The mussel shells were replaced with mussel shells, and the rest was the same as in example 2.
Comparative example 7
The clam shells were replaced with the flower shells, and the rest was the same as in example 2.
Effect characterization
Under the unified experimental standard and experimental condition, the adhesion detection is carried out on the example 2 and the comparative examples 1 to 7 according to GB/T5210-2006, and the results are as follows:
analyzing the above results, the following conclusions can be drawn: (1) compared with the effect data of the example 2 and the comparative example 1, the modified shell powder can effectively improve the adhesion of a coating system compared with the unmodified shell powder; (2) from the comparison of the effect data of example 2 and comparative examples 4-5, the compound coupling agent used in the present invention produces synergistic (1+1>2) technical effect compared to the use of a single silane coupling agent under the same total usage; (3) from the comparison of the effect data of example 2 and comparative examples 2-3, the characteristic synergistic technical effect does not occur in the compounding of any two different silane coupling agents, which shows that the maximum synergistic effect can be exerted only by using the compounded silane coupling agent defined in the invention; (4) from the comparison of the effect data of example 2 and comparative examples 6 to 7, the modification effect is very dependent on the kind of shell powder, i.e., sea clam, and the desired adhesion effect cannot be obtained when sea clam is replaced with other shell powders commonly used in the art.
Claims (6)
1. The weather-resistant environment-friendly coating is characterized by comprising the following components in parts by weight:
40-50 parts of compound silane coupling agent modified shell powder;
30-40 parts of pure acrylic emulsion;
30-40 parts of styrene-acrylic emulsion;
10-20 parts of hydroxypropyl methyl cellulose;
1-3 parts of polyethylene glycol;
1-3 parts of turpentine;
4-6 parts of triethylene tetramine;
6-8 parts of chitosan;
4-6 parts of propylene glycol;
7-9 parts of polyoxyethylene lauryl ether;
35-45 parts of deionized water.
2. The weather-resistant environment-friendly coating material as claimed in claim 1, wherein the compound silane coupling agent modified shell powder is prepared by the following method:
(1) pulverizing shell to 0.5-1.5mm to obtain product A;
(2) calcining the product A at 1200 ℃ for 60min, and cooling to obtain a product B;
(3) carrying out nano crushing treatment on the product B to obtain a product C;
(4) mixing the compound silane coupling agent and absolute ethyl alcohol, and performing ultrasonic dispersion in a water bath to obtain a product D;
(5) and adding the product C into the product D, stirring for 60min in an oil bath kettle at 110 ℃, and filtering, washing and drying to obtain the compound silane coupling agent modified shell powder.
3. The weather-resistant environment-friendly coating as claimed in claim 2, wherein the composite silane coupling agent is used in an amount of 5 to 10 wt% based on the product C.
4. The weather-resistant type environmental protection coating material according to claim 2, wherein the shell powder is a marine clam shell.
5. The weather-resistant environment-friendly coating as claimed in claim 4, wherein the compound silane coupling agent is prepared by compounding beta- (3, 4-epoxycyclohexyl) ethyltrimethoxysilane and a silane coupling agent with a formula (1) according to a mass ratio of 1: 1;
6. the preparation process of the weather-resistant environment-friendly coating according to any one of claims 1 to 5, characterized by comprising the following steps:
mixing and stirring deionized water, hydroxypropyl methyl cellulose, polyethylene glycol and chitosan, adding the compound silane coupling agent modified shell powder after uniformly stirring, continuously stirring, adding turpentine, polyoxyethylene lauryl ether, propylene glycol, pure acrylic emulsion, styrene-acrylic emulsion and triethylenetetramine after uniformly stirring, and continuously stirring uniformly to obtain the weather-resistant environment-friendly coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111362309.1A CN113956738A (en) | 2021-11-17 | 2021-11-17 | Weather-resistant environment-friendly coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111362309.1A CN113956738A (en) | 2021-11-17 | 2021-11-17 | Weather-resistant environment-friendly coating and preparation method thereof |
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| CN113956738A true CN113956738A (en) | 2022-01-21 |
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| CN202111362309.1A Pending CN113956738A (en) | 2021-11-17 | 2021-11-17 | Weather-resistant environment-friendly coating and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602383A (en) * | 2016-04-06 | 2016-05-25 | 郜杰 | Environment-friendly external wall paint containing shell powder |
| CN111607350A (en) * | 2020-03-31 | 2020-09-01 | 东风汽车有限公司 | Glass cement and preparation method thereof |
-
2021
- 2021-11-17 CN CN202111362309.1A patent/CN113956738A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105602383A (en) * | 2016-04-06 | 2016-05-25 | 郜杰 | Environment-friendly external wall paint containing shell powder |
| CN111607350A (en) * | 2020-03-31 | 2020-09-01 | 东风汽车有限公司 | Glass cement and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 唐强: "贝壳粉改性及在隔热涂料中的应用研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》, 31 January 2019 (2019-01-31), pages 038 - 2441 * |
| 唐强: "贝壳粉改性及在隔热涂料中的应用研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》, pages 038 - 2441 * |
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