CN110627409A - Water-resistant white real stone paint and preparation method thereof - Google Patents
Water-resistant white real stone paint and preparation method thereof Download PDFInfo
- Publication number
- CN110627409A CN110627409A CN201910944869.4A CN201910944869A CN110627409A CN 110627409 A CN110627409 A CN 110627409A CN 201910944869 A CN201910944869 A CN 201910944869A CN 110627409 A CN110627409 A CN 110627409A
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- water
- stone paint
- real stone
- cellulose ether
- paint
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F218/00—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 acyloxy radical of a saturated carboxylic acid, of carbonic acid or of a haloformic acid
- C08F218/02—Esters of monocarboxylic acids
- C08F218/04—Vinyl esters
- C08F218/08—Vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00482—Coating or impregnation materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
Abstract
The invention relates to the technical field of exterior wall surface decorative materials, in particular to a waterproof white real stone paint which comprises the following components in parts by mass: 10-15 parts of modified polyvinyl acetate emulsion, 0.6-0.8 part of film-forming assistant, 0.12-0.28 part of modified cellulose ether, 0.12-0.18 part of thickening agent, 0.1-0.12 part of defoaming agent, 0.15-0.18 part of bactericide, 70-75 parts of colored sand and water, wherein the pH value of the stone-like paint is 9-10; according to the invention, under the condition of existence of acrylate, modified polyvinyl acetate emulsion obtained by graft copolymerization of an organic silicon monomer and vinyl acetate is used as emulsion, and organic silicon chain forging is added in the modified polyvinyl acetate emulsion.
Description
Technical Field
The invention relates to the technical field of exterior wall surface decorative materials, in particular to a waterproof white real stone paint.
Background
The stone-like paint is a synthetic resin emulsion sand wall-shaped building coating prepared by using natural granite, broken stone and stone powder as aggregates, using synthetic resin emulsion as a base material and assisting with various additives, has the texture and the decorative effect of natural stone, and is deeply favored by vast owners and builders in the exterior wall decoration engineering of high-rise buildings.
However, in rainy days, the emulsion in the real stone paint absorbs water, and the addition of hydrophilic substances such as cellulose ether increases the water absorption of the real stone paint film, so that the real stone paint repentable water absorption and whitening after long-term rain wash.
Disclosure of Invention
The purpose of the invention is: overcomes the defects in the prior art, and provides the water-resistant white stone-like paint which has low water absorption rate and can not soften and turn white after being washed by rainwater for a long time.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the water-resistant white real stone paint comprises the following components in parts by mass: 10-15 parts of modified polyvinyl acetate emulsion, 0.6-0.8 part of film-forming assistant, 0.12-0.28 part of modified cellulose ether, 0.12-0.18 part of thickening agent, 0.1-0.12 part of defoaming agent, 0.15-0.18 part of bactericide, 70-75 parts of colored sand and water, wherein the pH value of the stone-like paint is 9-10.
Further, the modified polyvinyl acetate emulsion is obtained by graft copolymerization of an organic silicon monomer and vinyl acetate in the presence of acrylate.
Furthermore, the addition amount of the organic silicon monomer is 4.5-5.8% of the mass of the vinyl acetate.
Further, the modified cellulose ether is polydimethylsiloxane modified cellulose ether.
Further, the molar ratio of the polydimethylsilane to the cellulose ether is 1:1.
Furthermore, the film-forming assistant is a hydrophobic film-forming assistant, and is selected from one of vinyl pyrrolidone derivatives, acrylic polymers, organosilicones, polyurethanes and polyesters.
Further, the thickener is one or more of a thickener 0810, a thickener YK-01 and DSX 3290.
Further, the defoaming agent is obtained by addition polymerization of glycerin and propylene oxide or a mixture of ethylene oxide and propylene oxide.
Further, the bactericide is one or more of trichlorocarbanilide, triclosan and parachloroxylenol.
A preparation method of water-whitening resistant real stone paint comprises the following steps:
(1) adding modified cellulose ether into water at the rotation speed of 800r/min of 600-;
(2) adding the film forming aid, the thickening agent, the bactericide, the colored sand and water at the rotating speed of 1000r/min of 800-.
The technical scheme adopted by the invention has the beneficial effects that:
according to the invention, under the condition of existence of acrylate, modified polyvinyl acetate emulsion obtained by graft copolymerization of an organic silicon monomer and vinyl acetate is used as emulsion, and organic silicon chain forging is added in the modified polyvinyl acetate emulsion.
According to the invention, the modified polyvinyl acetate, the modified cellulose ether and the hydrophobic film-forming assistant are used in a matching manner, so that hydrophilic groups in the real stone paint film are reduced, the hydrophobicity of the real stone paint film is improved, the water absorption capacity of the real stone paint film after long-time rain wash can be obviously reduced, and water absorption expansion and whitening are avoided.
Detailed Description
The invention will now be further illustrated with reference to specific examples.
The water-resistant white real stone paint comprises the following components in parts by mass: 10-15 parts of modified polyvinyl acetate emulsion, 0.6-0.8 part of film-forming assistant, 0.12-0.28 part of modified cellulose ether, 0.12-0.18 part of thickening agent, 0.1-0.12 part of defoaming agent, 0.15-0.18 part of bactericide, 70-75 parts of colored sand and water, wherein the pH value of the stone-like paint is 9-10. According to the invention, the modified polyvinyl acetate, the modified cellulose ether and the hydrophobic film-forming assistant are used in a matching manner, so that hydrophilic groups in the real stone paint film are reduced, the hydrophobicity of the real stone paint film is improved, the water absorption capacity of the real stone paint film after long-time rain wash can be obviously reduced, and water absorption expansion and whitening are avoided.
Further, the modified polyvinyl acetate emulsion is obtained by graft copolymerization of an organic silicon monomer and vinyl acetate in the presence of acrylate. According to the invention, under the condition of existence of acrylate, modified polyvinyl acetate emulsion obtained by graft copolymerization of an organic silicon monomer and vinyl acetate is used as emulsion, and organic silicon chain forging is added in the modified polyvinyl acetate emulsion.
Furthermore, the addition amount of the organic silicon monomer is 4.5-5.8% of the mass of the vinyl acetate.
Further, the modified cellulose ether is polydimethylsiloxane modified cellulose ether, preferably, the molar ratio of the polydimethylsiloxane to the cellulose ether is 1:1, on one hand, the number of hydroxyl groups in the cellulose ether is reduced, on the other hand, the polydimethylsiloxane serving as a hydrophobic group further reduces the polarity inside the cellulose ether molecule, and the hydrophilicity of the cellulose ether is reduced, so that the water resistance of the water-resistant white stone paint is improved.
Furthermore, the film-forming assistant is a hydrophobic film-forming assistant, one of vinyl pyrrolidone derivatives, acrylic polymers, organosilicones, polyurethanes and polyesters is selected, and a water-increasing film-forming assistant is adopted, so that the water absorption rate or hydrophilicity of the real stone paint film is further reduced, and the water-whitening resistance of real air is improved.
Further, the thickening agent is one or more of thickening agent 0810, thickening agent YK-01 and DSX3290, preferably a mixture of thickening agent YK-01 and DSX3290, and the mass ratio of the thickening agent YK-01 to the thickening agent DSX3290 is 1: 1.2-1.8.
Furthermore, the defoaming agent is obtained by the addition polymerization of glycerin and propylene oxide or the mixture of ethylene oxide and propylene oxide, and the defoaming agent prepared by the method is poor in hydrophilicity, has stronger foam inhibition capacity than defoaming capacity, and can effectively reduce the water absorption of the real stone paint.
Further, the bactericide is one or more of trichlorocarbanilide, triclosan and parachloroxylenol, preferably a mixture of trichlorocarbanilide and parachloroxylenol, and the mass ratio of the trichlorocarbanilide to the parachloroxylenol is 1: 2-3.
A preparation method of water-resistant white stone paint is characterized by comprising the following steps: the preparation method comprises the following steps:
(1) adding modified cellulose ether into water at the rotation speed of 800r/min of 600-; according to the invention, the modified cellulose ether is mixed with water and then mixed with the modified polyvinyl acetate emulsion, the modified cellulose ether absorbs water to saturation, and then is mixed with the modified polyvinyl acetate emulsion, so that the water absorption of the real stone paint film after being coated can be reduced, and the water-white resistance of the real stone paint can be effectively improved.
(2) Adding the film forming aid, the thickening agent, the bactericide, the colored sand and water at the rotating speed of 1000r/min of 800-.
Example 1
The water-resistant white real stone paint comprises the following components in parts by mass: 10 parts of modified polyvinyl acetate emulsion, 0.6 part of film-forming assistant, 0.12 part of modified cellulose ether, 0.12 part of thickening agent, 0.1 part of defoaming agent, 0.15 part of bactericide, 70 parts of colored sand and water, wherein the pH value of the stone-like paint is 9.0;
wherein, the modified polyvinyl acetate emulsion is obtained by graft copolymerization of organic silicon monomer and vinyl acetate in the presence of acrylic ester, and the addition amount of the organic silicon monomer is 4.5 percent of the mass of the vinyl acetate.
Wherein the modified cellulose ether is polydimethylsiloxane modified cellulose ether, and the molar ratio of the polydimethylsiloxane to the cellulose ether is 1:1.
Wherein the film forming assistant is hydrophobic film forming assistant and vinyl pyrrolidone derivative.
Wherein the thickener is selected from the thickener 0810.
Wherein the defoaming agent is obtained by addition polymerization of glycerin and propylene oxide or a mixture of ethylene oxide and propylene oxide.
Wherein the bactericide is trichlorocarbanilide.
A preparation method of water-whitening resistant real stone paint comprises the following steps:
(1) adding modified cellulose ether into water at a rotation speed of 600r/min, stirring at room temperature for 30min, adding defoamer while stirring, then continuously adding modified polyvinyl acetate emulsion, adjusting the rotation speed to 1000r/min, and stirring for 30 min;
(2) adding the film forming aid, the thickening agent, the bactericide, the colored sand and water at the rotating speed of 800r/min, continuously stirring for 30min, and adjusting the pH value to 9.0 to obtain the water-resistant white real stone paint.
Example 2
The water-resistant white real stone paint comprises the following components in parts by mass: 10 parts of modified polyvinyl acetate emulsion, 0.6 part of film-forming assistant, 0.15 part of modified cellulose ether, 0.15 part of thickening agent, 0.1 part of defoaming agent, 0.15 part of bactericide, 70 parts of colored sand and water, wherein the pH value of the stone-like paint is 9.0;
wherein, the modified polyvinyl acetate emulsion is obtained by graft copolymerization of organic silicon monomer and vinyl acetate in the presence of acrylic ester, and the addition amount of the organic silicon monomer is 4.8 percent of the mass of the vinyl acetate.
Wherein the modified cellulose ether is polydimethylsiloxane modified cellulose ether, and the molar ratio of the polydimethylsiloxane to the cellulose ether is 1:1.
Wherein the film-forming assistant is hydrophobic film-forming assistant, and acrylic acid polymer is selected.
Wherein the thickening agent is a mixture of YK-01 and DSX3290 in a mass ratio of 1: 1.2.
Wherein the defoaming agent is obtained by addition polymerization of glycerin and propylene oxide or a mixture of ethylene oxide and propylene oxide.
Wherein the bactericide is a mixture of trichlorocarbanilide and parachloroxylenol, and the mass ratio of the trichlorocarbanilide to the parachloroxylenol is 1:2.
A preparation method of water-whitening resistant real stone paint comprises the following steps:
(1) adding modified cellulose ether into water at the rotation speed of 650r/min, stirring at room temperature for 18min, adding defoamer while stirring, then continuously adding modified polyvinyl acetate emulsion, adjusting the rotation speed to 1000r/min, and stirring for 30 min;
(2) adding a film forming aid, a thickening agent, a bactericide, colored sand and water at the rotating speed of 850r/min, continuously stirring for 30min, and adjusting the pH value to 9.0 to obtain the water-resistant white real stone paint.
Example 3
The water-resistant white real stone paint comprises the following components in parts by mass: 12 parts of modified polyvinyl acetate emulsion, 0.7 part of film-forming assistant, 0.2 part of modified cellulose ether, 0.15 part of thickening agent, 0.1 part of defoaming agent, 0.15 part of bactericide, 72 parts of colored sand and water, wherein the pH value of the stone-like paint is 9.5;
wherein, the modified polyvinyl acetate emulsion is obtained by graft copolymerization of organic silicon monomer and vinyl acetate in the presence of acrylic ester, and the addition amount of the organic silicon monomer is 4.8 percent of the mass of the vinyl acetate.
Wherein the modified cellulose ether is polydimethylsiloxane modified cellulose ether, and the molar ratio of the polydimethylsiloxane to the cellulose ether is 1:1.
Wherein the film forming assistant is hydrophobic film forming assistant and selected from organosiloxane.
Wherein the thickening agent is a mixture of YK-01 and DSX3290 in a mass ratio of 1: 1.5.
Wherein the defoaming agent is obtained by addition polymerization of glycerin and propylene oxide or a mixture of ethylene oxide and propylene oxide.
Wherein the bactericide is a mixture of trichlorocarbanilide and parachloroxylenol, and the mass ratio of the trichlorocarbanilide to the parachloroxylenol is 1: 2.5.
A preparation method of water-whitening resistant real stone paint comprises the following steps:
(1) adding modified cellulose ether into water at the rotation speed of 700r/min, stirring at room temperature for 20min, adding a defoaming agent while stirring, then continuously adding the modified polyvinyl acetate emulsion, adjusting the rotation speed to 1100r/min, and stirring for 20 min;
(2) adding the film forming aid, the thickening agent, the bactericide, the colored sand and water at the rotating speed of 900r/min, continuously stirring for 25min, and adjusting the pH value to 9.5 to obtain the water-resistant white real stone paint.
Example 4
The water-resistant white real stone paint comprises the following components in parts by mass: 14 parts of modified polyvinyl acetate emulsion, 0.7 part of film-forming assistant, 0.25 part of modified cellulose ether, 0.16 part of thickening agent, 0.12 part of defoaming agent, 0.16 part of bactericide, 72 parts of colored sand and water, wherein the pH value of the stone-like paint is 9.5;
wherein, the modified polyvinyl acetate emulsion is obtained by graft copolymerization of organic silicon monomer and vinyl acetate in the presence of acrylic ester, and the addition amount of the organic silicon monomer is 5.4 percent of the mass of the vinyl acetate.
Wherein the modified cellulose ether is polydimethylsiloxane modified cellulose ether, and the molar ratio of the polydimethylsiloxane to the cellulose ether is 1:1.
Wherein the film-forming auxiliary agent is hydrophobic film-forming auxiliary agent, and polyurethane is selected.
Wherein the thickening agent is a mixture of YK-01 and DSX3290 in a mass ratio of 1: 1.6.
Wherein the defoaming agent is obtained by addition polymerization of glycerin and propylene oxide or a mixture of ethylene oxide and propylene oxide.
Wherein the bactericide is a mixture of trichlorocarbanilide and parachloroxylenol, and the mass ratio of the trichlorocarbanilide to the parachloroxylenol is 1: 2.8.
A preparation method of water-whitening resistant real stone paint comprises the following steps:
(1) adding modified cellulose ether into water at the rotation speed of 700r/min, stirring at room temperature for 25min, adding the defoaming agent while stirring, then continuously adding the modified polyvinyl acetate emulsion, adjusting the rotation speed to 1100r/min, and stirring for 25 min;
(2) adding the film forming aid, the thickening agent, the bactericide, the colored sand and water at the rotating speed of 900r/min, continuously stirring for 25min, and adjusting the pH value to 9.5 to obtain the water-resistant white real stone paint.
Example 5
The water-resistant white real stone paint comprises the following components in parts by mass: 15 parts of modified polyvinyl acetate emulsion, 0.8 part of film-forming assistant, 0.28 part of modified cellulose ether, 0.18 part of thickening agent, 0.12 part of defoaming agent, 0.18 part of bactericide, 75 parts of colored sand and water, wherein the pH value of the stone-like paint is 10;
wherein, the modified polyvinyl acetate emulsion is obtained by graft copolymerization of organic silicon monomer and vinyl acetate in the presence of acrylic ester, and the addition amount of the organic silicon monomer is 4.5-5.8% of the mass of the vinyl acetate.
Wherein the modified cellulose ether is polydimethylsiloxane modified cellulose ether, and the molar ratio of the polydimethylsiloxane to the cellulose ether is 1:1.
Wherein the film-forming assistant is hydrophobic film-forming assistant, and polyester is selected.
Wherein the thickening agent is a mixture of YK-01 and DSX3290 in a mass ratio of 1: 1.8.
Wherein the defoaming agent is obtained by addition polymerization of glycerin and propylene oxide or a mixture of ethylene oxide and propylene oxide.
Wherein the bactericide is a mixture of trichlorocarbanilide and parachloroxylenol, and the mass ratio of the trichlorocarbanilide to the parachloroxylenol is 1: 3.
A preparation method of water-whitening resistant real stone paint comprises the following steps:
(1) adding modified cellulose ether into water at the rotating speed of 800r/min, stirring for 15min at room temperature, adding a defoaming agent while stirring, then continuously adding the modified polyvinyl acetate emulsion, adjusting the rotating speed to 1200r/min, and stirring for 10 min;
(2) adding the film forming aid, the thickening agent, the bactericide, the colored sand and water at the rotating speed of 1000r/min, continuously stirring for 20min, and adjusting the pH value to 10 to obtain the water-resistant white real stone paint.
The performance of the real stone paint in the examples 1 to 5 is tested according to the JG/T24-2000 synthetic resin emulsion sand wall building coating standard, and the water-white resistance of the real stone paint is mainly tested:
TABLE 1
The stone-like paints of examples 1 to 5 were drawn down to form films using a film-forming stencil having a thickness of 1mm, and cured at a relative humidity of 50% and temperatures of 5, 10, 23 and 35 ℃ for 7 days, respectively, to measure water absorption.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. The water-resistant white real stone paint is characterized in that: the composition comprises the following components in parts by mass: 10-15 parts of modified polyvinyl acetate emulsion, 0.6-0.8 part of film-forming assistant, 0.12-0.28 part of modified cellulose ether, 0.12-0.18 part of thickening agent, 0.1-0.12 part of defoaming agent, 0.15-0.18 part of bactericide, 70-75 parts of colored sand and water, wherein the pH value of the stone-like paint is 9-10.
2. The water-whitening resistant real stone paint as claimed in claim 1, characterized in that: the modified polyvinyl acetate emulsion is obtained by graft copolymerization of an organic silicon monomer and vinyl acetate in the presence of acrylate.
3. The water-whitening resistant real stone paint as claimed in claim 2, characterized in that: the addition amount of the organic silicon monomer is 4.5-5.8% of the mass of the vinyl acetate.
4. The water-whitening resistant real stone paint as claimed in claim 1, characterized in that: the modified cellulose ether is polydimethylsiloxane modified cellulose ether.
5. The water-whitening resistant real stone paint as claimed in claim 1, characterized in that: the molar ratio of the polydimethylsilane to the cellulose ether is 1:1.
6. The water-whitening resistant real stone paint as claimed in claim 1, characterized in that: the film forming assistant is hydrophobic film forming assistant and is one of vinyl pyrrolidone derivative, acrylic polymer, organosiloxane, polyurethane and polyester.
7. The water-whitening resistant real stone paint as claimed in claim 1, characterized in that: the thickener is selected from one or more of a thickener 0810, a thickener YK-01 and a thickener DSX 3290.
8. The water-whitening resistant real stone paint as claimed in claim 1, characterized in that: the defoaming agent is obtained by addition polymerization of glycerin and propylene oxide or a mixture of ethylene oxide and propylene oxide.
9. The water-whitening resistant real stone paint as claimed in claim 1, characterized in that: the bactericide is one or more of trichlorocarbanilide, triclosan and parachloroxylenol.
10. The method of preparing a water-resistant white stone paint as claimed in any one of claims 1 to 9, wherein: the preparation method comprises the following steps:
(1) adding modified cellulose ether into water at the rotation speed of 800r/min of 600-;
(2) adding the film forming aid, the thickening agent, the bactericide, the colored sand and water at the rotating speed of 1000r/min of 800-.
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| CN201910944869.4A CN110627409B (en) | 2019-09-30 | 2019-09-30 | Water-resistant white real stone paint and preparation method thereof |
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| CN201910944869.4A CN110627409B (en) | 2019-09-30 | 2019-09-30 | Water-resistant white real stone paint and preparation method thereof |
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| CN110627409A true CN110627409A (en) | 2019-12-31 |
| CN110627409B CN110627409B (en) | 2022-08-09 |
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2019
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Address after: No.168, Zhidong Road, Zhixi industrial concentration zone, Jintan District, Changzhou City, Jiangsu Province 213200 Applicant after: Jiangsu Jiunuo New Material Technology Co.,Ltd. Address before: No.168, Zhidong Road, Zhixi industrial concentration zone, Jintan District, Changzhou City, Jiangsu Province 213200 Applicant before: JIANGSU JIUNUO BUILDING MATERIAL TECHNOLOGY Co.,Ltd. |
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