CN105419622A - Compound modified alkyd resin two-component coating and preparation method thereof - Google Patents
Compound modified alkyd resin two-component coating and preparation method thereof Download PDFInfo
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- CN105419622A CN105419622A CN201510961783.4A CN201510961783A CN105419622A CN 105419622 A CN105419622 A CN 105419622A CN 201510961783 A CN201510961783 A CN 201510961783A CN 105419622 A CN105419622 A CN 105419622A
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/61—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
- C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/67—Unsaturated compounds having active hydrogen
- C08G18/68—Unsaturated polyesters
-
- 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
-
- 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
-
- 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
- C08K3/34—Silicon-containing compounds
-
- 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
-
- 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
- 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 discloses a compound modified alkyd resin two-component coating and a preparation method thereof, wherein the compound modified alkyd resin two-component coating comprises a component A and a component B; the component A is prepared from 38 to 54 parts of organic isocyanate, 27 to 33 parts of polyester polyol, 1.9 to 3.5 parts of hydroxyl silicone oil and 1.6 to 2.4 parts of catalyst; the component B is prepared from 38 to 52 parts of alkyd resin, 17 to 28 parts of polyethylene glycol, 12 to 21 parts of pigment filler, 0.3 to 1 part of defoaming agent, 0.3 to 1 part of flatting agent, 1.5 to 3 parts of coalescing agent and 2.5 to 5 parts of chain extender. According to the coating and the preparation method thereof, the organic isocyanate is taken as intermediate, so that the alkyd resin and organo-siloxane form key-bridge connection, and the difficult problem of poor stability of resin caused by a hydrogen bond is solved, and meanwhile, polyurethane perfect property is realized, and the mechanical performance, ageing resistance, adhesive force and the like of the alkyd resin are further improved.
Description
Technical field
The present invention relates to building water-proof paint field, be specifically related to a kind of composite modified Synolac dual-component coating and preparation method thereof.
Background technology
Synolac, due to its constructional feature, can make paint film plentiful, bright, is easy to construct and the characteristic crosslinked with oxygen with it, it is made to be used widely from doing general, but their drying and solidification quite slow, in addition, the hardness of its film is low, water tolerance and weathering resistance poor.
The coating that silicone alkyd obtains obviously is better than unmodified Synolac in hardness, shock strength, and glossiness and drying property all make moderate progress, and improve the ageing-resistant performance of coating; But, easily there is microphase-separated phenomenon in the modified resin poor stability that Synolac and organo-siloxane copolycondensation obtain, make coating sticking power reduce.
Summary of the invention
The object of this invention is to provide a kind of composite modified Synolac dual-component coating and preparation method thereof, adopt organo-siloxane and urethane composite modified, produce " working in coordination with " effect can solve problems of the prior art.
In order to achieve the above object, the technical scheme that the present invention takes is:
A kind of composite modified Synolac dual-component coating, comprise component A and B component, wherein component A is formed by the preparation of raw material of following weight part: organic isocyanate 38 ~ 54 parts, polyester polyol 27 ~ 33 parts, hydroxy silicon oil 1.9 ~ 3.5 parts, catalyzer 1.6 ~ 2.4 parts;
B component is formed by the preparation of raw material of following weight part: Synolac 38 ~ 52 parts, polyoxyethylene glycol 17 ~ 28 parts, color stuffing 12 ~ 21 parts, defoamer 0.3 ~ 1 part, flow agent 0.3 ~ 1 part, film coalescence aid 1.5 ~ 3 parts, chainextender 2.5 ~ 5 parts;
Described component A and B component are that 1.2 ~ 1.4:1 mixes by weight.
As specializing, described organic isocyanate and the weight ratio of polyester polyol are 1.4 ~ 1.8:1.
As specializing, the consumption of described hydroxy silicon oil is 5% ~ 7% of organic isocyanate consumption.
As specializing, described color stuffing is superfine talcum powder, light calcium carbonate and titanium dioxide.
A preparation method for composite modified Synolac dual-component coating, comprises the steps:
(1) component A preparation: polyester polyol is heated to 90 ~ 95 DEG C, vacuum hydro-extraction 2h, pour into after cooling in tank seal for subsequent use; The organic isocyanate loading above-mentioned weight part is in the reactor heated to 60 ~ 65 DEG C, slowly adds the polyester polyol after dehydration, hydroxy silicon oil, catalyzer, and reheat to 80 ~ 85 DEG C of reaction 2 ~ 3h, cooling discharging sealing is preserved, and obtains component A;
(2) B component preparation: Synolac, the polyoxyethylene glycol of above-mentioned weight part will be added in reactor, under moderate-speed mixer dispersion, add defoamer, flow agent, then add color stuffing, high-speed stirring is disperseed; Finally add film coalescence aid, chainextender, mixture is placed in grinding machine for grinding dispersion 1h, pours in flask and be heated to 100 DEG C, dehydration 1h, cooling discharging sealing is preserved, and obtains B component;
(3) be that 1.2 ~ 1.4:1 mixes by weight by component A and B component, stir 3 ~ 5min, after making it mix, obtain two component alkyd resin waterproof paint.
Compared with prior art, beneficial effect of the present invention:
The present invention adopts composite modified method, using the isocyanic ester containing high reactivity group-NCO as intermediate, makes to form " key bridge " between Synolac and organo-siloxane and connects, thus solve the difficult point of the resin stability difference caused due to hydrogen bond; And owing to introducing carbamate groups, make modified resin possess urethane good characteristic simultaneously, further increase the performances such as the mechanical property of Synolac, ageing resistance and sticking power.
Embodiment
Below in conjunction with specific embodiment, the present invention is further described.
Embodiment 1
(1) component A preparation: glycol ether is heated to 90 DEG C, vacuum hydro-extraction 2h, pour into after cooling in tank seal for subsequent use; Load 38 parts of diphenylmethanediisocyanates in the reactor and heat 60 DEG C, slowly add the glycol ether 27 parts after dehydration, hydroxy silicon oil 1.9 parts, catalyst dibutyltin dilaurylate 1.6 parts, reheat to 80 DEG C of reaction 2h, cooling discharging sealing is preserved, and obtains component A;
(2) B component preparation: 48 parts of Synolac, 24 parts of polyoxyethylene glycol will be added in reactor, 0.8 part of defoamer, 0.8 part of flow agent is added under moderate-speed mixer dispersion, add 10 parts of superfine talcum powders, 4 parts of light calcium carbonates, 4 parts of titanium dioxides again, high-speed stirring is disperseed; Finally add 4 parts of BDOs, 2.5 parts of propandiol butyl ethers, mixture is placed in grinding machine for grinding dispersion 1h, pours in flask and be heated to 100 DEG C, dehydration 1h, cooling discharging sealing is preserved, and obtains B component;
(3) component A is mixed by weight for 1.3:1 with B component, stir 3 ~ 5min, after making it mix, obtain two component alkyd resin waterproof paint.
Embodiment 2
(1) component A preparation: glycol ether is heated to 93 DEG C, vacuum hydro-extraction 2h, pour into after cooling in tank seal for subsequent use; Load 50 parts of diphenylmethanediisocyanates in the reactor and be heated to 65 DEG C, slowly add the glycol ether 33 parts after dehydration, hydroxy silicon oil 3 parts, catalyst dibutyltin dilaurylate 2.1 parts, reheat to 85 DEG C of reaction 2.5h, cooling discharging sealing is preserved, and obtains component A;
(2) B component preparation: 52 parts of Synolac, 28 parts of polyoxyethylene glycol will be added in reactor, 1 part of defoamer, 1 part of flow agent is added under moderate-speed mixer dispersion, add 8 parts of superfine talcum powders, 6 parts of light calcium carbonates, 7 parts of titanium dioxides again, high-speed stirring is disperseed; Finally add 5 parts of BDOs, 3 parts of propandiol butyl ethers, mixture is placed in grinding machine for grinding dispersion 1h, pours in flask and be heated to 100 DEG C, dehydration 1h, cooling discharging sealing is preserved, and obtains B component;
(3) be that 1.4:1 mixes by component A and the weight ratio of B component, stir 3 ~ 5min, after making it mix, obtain two component alkyd resin waterproof paint.
Embodiment 3
(1) component A preparation: glycol ether is heated to 95 DEG C, vacuum hydro-extraction 2h, pour into after cooling in tank seal for subsequent use; Load 46 parts of diphenylmethanediisocyanates in the reactor and be heated to 63 DEG C, slowly add the glycol ether 29 parts after dehydration, hydroxy silicon oil 3.2 parts, catalyst dibutyltin dilaurylate 1.9 parts, reheat to 83 DEG C of reaction 3h, cooling discharging sealing is preserved, and obtains component A;
(2) B component preparation: 43 parts of Synolac, 20 parts of polyoxyethylene glycol will be added in reactor, 0.5 part of defoamer, 0.5 part of flow agent is added under moderate-speed mixer dispersion, add 5 parts of superfine talcum powders, 5 parts of light calcium carbonates, 5 parts of titanium dioxides again, high-speed stirring is disperseed; Finally add 3.5 parts of BDOs, 2 parts of propandiol butyl ethers, mixture is placed in grinding machine for grinding dispersion 1h, pours in flask and be heated to 100 DEG C, dehydration 1h, cooling discharging sealing is preserved, and obtains B component;
(3) be that 1.2:1 mixes by component A and the weight ratio of B component, stir 3 ~ 5min, after making it mix, obtain two component alkyd resin waterproof paint.
Embodiment 4
(1) component A preparation: glycol ether is heated to 92 DEG C of vacuum hydro-extraction 2h, pour into after cooling in tank seal for subsequent use; Load 54 parts of diphenylmethanediisocyanates in the reactor and be heated to 62 DEG C, slowly add the glycol ether 30 parts after dehydration, hydroxy silicon oil 3.5 parts, catalyst dibutyltin dilaurylate 2.4 parts, reheat to 82 DEG C of reaction 2.5h, cooling discharging sealing is preserved, and obtains component A;
(2) B component preparation: 38 parts of Synolac, 17 parts of polyoxyethylene glycol will be added in reactor, 0.3 part of defoamer, 0.3 part of flow agent is added under moderate-speed mixer dispersion, add 6 parts of superfine talcum powders, 3 parts of light calcium carbonates, 3 parts of titanium dioxides again, high-speed stirring is disperseed; Finally add 2.5 parts of BDOs, 1.5 parts of propandiol butyl ethers, mixture is placed in grinding machine for grinding dispersion 1h, pours in flask and be heated to 100 DEG C, dehydration 1h, cooling discharging sealing is preserved, and obtains B component;
(3) be that 1.35:1 mixes by component A and the weight ratio of B component, stir 3 ~ 5min, after making it mix, obtain two component alkyd resin waterproof paint.
The performance such as tensile strength, elongation at break, tear strength of composite modified Synolac dual-component coating obtained for embodiment 1,2,3,4 tested, result is as shown in table 1 below.
Table 1
The above, it is only present pre-ferred embodiments, not technical scope of the present invention is imposed any restrictions, thus every above embodiment is done according to technical spirit of the present invention any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (5)
1. a composite modified Synolac dual-component coating, it is characterized in that: comprise component A and B component, wherein component A is formed by the preparation of raw material of following weight part: organic isocyanate 38 ~ 54 parts, polyester polyol 27 ~ 33 parts, hydroxy silicon oil 1.9 ~ 3.5 parts, catalyzer 1.6 ~ 2.4 parts;
B component is formed by the preparation of raw material of following weight part: Synolac 38 ~ 52 parts, polyoxyethylene glycol 17 ~ 28 parts, color stuffing 12 ~ 21 parts, defoamer 0.3 ~ 1 part, flow agent 0.3 ~ 1 part, film coalescence aid 1.5 ~ 3 parts, chainextender 2.5 ~ 5 parts;
Described component A and B component are that 1.2 ~ 1.4:1 mixes by weight.
2. composite modified Synolac dual-component coating according to claim 1, is characterized in that, described organic isocyanate and the weight ratio of polyester polyol are 1.4 ~ 1.8:1.
3. composite modified Synolac dual-component coating according to claim 1, is characterized in that, the consumption of described hydroxy silicon oil is 5% ~ 7% of organic isocyanate consumption.
4. composite modified Synolac dual-component coating according to claim 1, is characterized in that, described color stuffing is superfine talcum powder, light calcium carbonate and titanium dioxide.
5. the preparation method of composite modified Synolac dual-component coating according to claim 1, is characterized in that comprising the steps:
(1) component A preparation: polyester polyol is heated to 90 ~ 95 DEG C, vacuum hydro-extraction 2h, pour into after cooling in tank seal for subsequent use; The organic isocyanate loading above-mentioned weight part is in the reactor heated to 60 ~ 65 DEG C, slowly adds the polyester polyol after dehydration, hydroxy silicon oil, catalyzer, and reheat to 80 ~ 85 DEG C of reaction 2 ~ 3h, cooling discharging sealing is preserved, and obtains component A;
(2) B component preparation: Synolac, the polyoxyethylene glycol of above-mentioned weight part will be added in reactor, under moderate-speed mixer dispersion, add defoamer, flow agent, then add color stuffing, high-speed stirring is disperseed; Finally add film coalescence aid, chainextender, mixture is placed in grinding machine for grinding dispersion 1h, pours in flask and be heated to 100 DEG C, dehydration 1h, cooling discharging sealing is preserved, and obtains B component;
(3) be that 1.2 ~ 1.4:1 mixes by weight by component A and B component, stir 3 ~ 5min, after making it mix, obtain two component alkyd resin waterproof paint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510961783.4A CN105419622A (en) | 2015-12-21 | 2015-12-21 | Compound modified alkyd resin two-component coating and preparation method thereof |
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| CN201510961783.4A CN105419622A (en) | 2015-12-21 | 2015-12-21 | Compound modified alkyd resin two-component coating and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838236A (en) * | 2016-04-19 | 2016-08-10 | 滁州环球聚氨酯科技有限公司 | High-strength polyurethane waterproofing paint |
| CN106010217A (en) * | 2016-07-30 | 2016-10-12 | 淄博德信联邦化学工业有限公司 | Preparation method of epoxy floor paint |
| CN113698562A (en) * | 2021-07-21 | 2021-11-26 | 陈鹏云 | Solvent-free synthetic material applying ice and snow movement and preparation method thereof |
| CN115286946A (en) * | 2022-08-29 | 2022-11-04 | 湖南怡美新材料科技有限公司 | Environment-friendly two-component water-based wood paint and preparation method thereof |
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| CN1817934A (en) * | 2006-03-10 | 2006-08-16 | 广东天银化工实业有限公司 | Self-crosslinked oxidation and high-efficient dispersion with water polyurethane and production thereof |
| CN102134441A (en) * | 2011-02-11 | 2011-07-27 | 中国电力科学研究院 | Organic silicon polyurethane composite modified alkyd resin coating composition and preparation method thereof |
| CN104559730A (en) * | 2015-01-07 | 2015-04-29 | 胡运冲 | Preparation method of organic silicon modified polyurethane resin coating |
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2015
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| CN1817934A (en) * | 2006-03-10 | 2006-08-16 | 广东天银化工实业有限公司 | Self-crosslinked oxidation and high-efficient dispersion with water polyurethane and production thereof |
| CN102134441A (en) * | 2011-02-11 | 2011-07-27 | 中国电力科学研究院 | Organic silicon polyurethane composite modified alkyd resin coating composition and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105838236A (en) * | 2016-04-19 | 2016-08-10 | 滁州环球聚氨酯科技有限公司 | High-strength polyurethane waterproofing paint |
| CN105838236B (en) * | 2016-04-19 | 2018-05-11 | 滁州环球聚氨酯科技有限公司 | A kind of high-strength polyurethane waterproof coating material |
| CN106010217A (en) * | 2016-07-30 | 2016-10-12 | 淄博德信联邦化学工业有限公司 | Preparation method of epoxy floor paint |
| CN113698562A (en) * | 2021-07-21 | 2021-11-26 | 陈鹏云 | Solvent-free synthetic material applying ice and snow movement and preparation method thereof |
| CN113698562B (en) * | 2021-07-21 | 2022-09-09 | 海兴红旗体育器材有限公司 | Solvent-free synthetic material applying ice and snow movement and preparation method thereof |
| CN115286946A (en) * | 2022-08-29 | 2022-11-04 | 湖南怡美新材料科技有限公司 | Environment-friendly two-component water-based wood paint and preparation method thereof |
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Application publication date: 20160323 |