CN114921162B - Water-based transparent wear-resistant flame-retardant finish paint and preparation method thereof - Google Patents
Water-based transparent wear-resistant flame-retardant finish paint and preparation method thereof Download PDFInfo
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- CN114921162B CN114921162B CN202110818161.1A CN202110818161A CN114921162B CN 114921162 B CN114921162 B CN 114921162B CN 202110818161 A CN202110818161 A CN 202110818161A CN 114921162 B CN114921162 B CN 114921162B
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 239000003063 flame retardant Substances 0.000 title claims abstract description 41
- 239000003973 paint Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims abstract description 55
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 54
- -1 alcohol ester Chemical class 0.000 claims abstract description 33
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 32
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 32
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000012796 inorganic flame retardant Substances 0.000 claims abstract description 25
- 229920002125 Sokalan® Polymers 0.000 claims abstract description 24
- 239000004584 polyacrylic acid Substances 0.000 claims abstract description 24
- 239000006185 dispersion Substances 0.000 claims abstract description 15
- 229920003009 polyurethane dispersion Polymers 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 13
- CUDYYMUUJHLCGZ-UHFFFAOYSA-N 2-(2-methoxypropoxy)propan-1-ol Chemical compound COC(C)COC(C)CO CUDYYMUUJHLCGZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229920002635 polyurethane Polymers 0.000 claims description 20
- 239000004814 polyurethane Substances 0.000 claims description 20
- 239000012752 auxiliary agent Substances 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 14
- 238000005299 abrasion Methods 0.000 claims description 12
- 229920002396 Polyurea Polymers 0.000 claims description 9
- 125000001931 aliphatic group Chemical group 0.000 claims description 9
- 239000013530 defoamer Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 5
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical group [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 5
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 5
- 239000000347 magnesium hydroxide Substances 0.000 claims description 5
- 239000012467 final product Substances 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 10
- 239000002023 wood Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- DMKSVUSAATWOCU-HROMYWEYSA-N loteprednol etabonate Chemical group C1CC2=CC(=O)C=C[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@@](C(=O)OCCl)(OC(=O)OCC)[C@@]1(C)C[C@@H]2O DMKSVUSAATWOCU-HROMYWEYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- WAEVWDZKMBQDEJ-UHFFFAOYSA-N 2-[2-(2-methoxypropoxy)propoxy]propan-1-ol Chemical compound COC(C)COC(C)COC(C)CO WAEVWDZKMBQDEJ-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- CUVLMZNMSPJDON-UHFFFAOYSA-N 1-(1-butoxypropan-2-yloxy)propan-2-ol Chemical group CCCCOCC(C)OCC(C)O CUVLMZNMSPJDON-UHFFFAOYSA-N 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C09D5/18—Fireproof paints including high temperature resistant paints
-
- 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
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
Landscapes
- 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 the field of flame retardance, in particular to a water-based transparent wear-resistant flame-retardant finish coat and a preparation method thereof, wherein the water-based transparent wear-resistant flame-retardant finish coat comprises, by weight, 50-65 parts of hydroxyl polyurethane dispersion or hydroxyl polyacrylic acid dispersion, 5-15 parts of alcohol ester, 1-5 parts of alcohol ether, 20-30 parts of inorganic flame retardant and 10-30 parts of polyisocyanate. The application adopts the dodecanol ester and the dipropylene glycol methyl ether in a specific proportion, avoids the color-changing phenomenon caused by Bayhydrol xp2470, ensures the transparency of the finish paint, simultaneously ensures that the flame retardant can be uniformly distributed in the finish paint component, further improves the flame retardance, and ensures that the excellent paint film strength is kept under the condition that a large amount of contained inorganic flame retardants exist by means of the coordination reaction among all raw materials.
Description
Technical Field
The invention relates to the field of flame retardance, in particular to an aqueous transparent wear-resistant flame-retardant finish paint and a preparation method thereof.
Background
At present, as wooden materials are light, furniture made of wooden materials is produced with the improvement of living standard of people, and the yield is increased. However, when the wooden material brings convenience to people, the fire-proof performance of the wooden material brings potential safety hazard to the occurrence of fire. The flame retardant finishing agent is added into the wood material, so that fire can be effectively avoided, the flame retardant effect of the organic flame retardant is good, toxic gas is released during combustion, the environment is not protected, when the inorganic flame retardant is used, a certain amount of flame retardant is required to be added, the good flame retardant effect can be achieved, and the flatness and the attractiveness of a coating film are affected by the large amount of the added inorganic flame retardant.
In addition, with the enhancement of aesthetic ideas, the transparency of a paint film gradually becomes a potential requirement, however, the color of the existing paint film can change after a certain time, especially the color of local scattered spots is changed, so that the paint film is extremely attractive and the use is influenced.
Disclosure of Invention
In view of the problems existing in the prior art, the first aspect of the invention provides an aqueous transparent wear-resistant flame-retardant finish paint, which comprises, by weight, 50-65 parts of a hydroxyl polyurethane dispersion or a hydroxyl polyacrylic acid dispersion, 5-15 parts of alcohol ester, 1-5 parts of alcohol ether, 20-30 parts of an inorganic flame retardant and 10-30 parts of polyisocyanate.
In one embodiment, the aqueous transparent abrasion-resistant flame retardant finish is prepared from a starting material further comprising 1 to 5 parts by weight of an acidity regulator.
In one embodiment, the aqueous transparent abrasion-resistant flame-retardant finish paint is prepared from 1 to 5 parts by weight of an auxiliary agent.
In a preferred embodiment, the aqueous transparent abrasion-resistant flame retardant finish is prepared from 58 parts by weight of a hydroxyl polyurethane dispersion or a hydroxyl polyacrylic dispersion, 8 parts by weight of an alcohol ester, 2 parts by weight of an alcohol ether, 25 parts by weight of an inorganic flame retardant, 20 parts by weight of a polyisocyanate, 2 parts by weight of an acidity regulator, and 3.3 parts by weight of an auxiliary agent.
In one embodiment, the hydroxyl polyurethane dispersion or hydroxyl polyacrylic acid dispersion has a hydroxyl content of 1 to 5wt%, preferably 3.9wt%.
Preferably, the hydroxy polyurethane dispersion is a hydroxy polyester polyurethane dispersion and/or a hydroxy polycarbonate polyurethane dispersion.
Further preferably, the hydroxyl polyurethane dispersion or hydroxyl polyacrylic acid dispersion has a viscosity of 300 to 3000 mPas, more preferably 1500 to 3000 mPas, measured according to DIN EN ISO 3219 at 23 ℃.
Further preferably, the hydroxyl polyurethane dispersion or hydroxyl polyacrylic acid dispersion has an acid value of 1 to 15mgKOH/g, more preferably 10mgKOH/g, as measured according to DIN EN ISO 2114.
The hydroxyl group content of the hydroxyl polyurethane dispersion or hydroxyl polyacrylic acid dispersion in this application refers to the calculated solids value.
Preferably, the hydroxyl polyurethane dispersion or hydroxyl polyacrylic acid dispersion is identified by the trademark Bayhydrol xp2470.
In one embodiment, the acidity regulator is not particularly limited, and may be routinely selected by one of ordinary skill in the art.
Preferably, the acidity regulator is available from Dow under the trade designation AMP-95.
In one embodiment, the alcohol ester is a dodecanol ester.
In one embodiment, the alcohol ether is dipropylene glycol methyl ether and/or tripropylene glycol methyl ether.
Preferably, the alcohol ether is dipropylene glycol methyl ether.
In one embodiment, the weight ratio of alcohol ester to alcohol ether is (3-6): 1, preferably 4:1.
a patent related to the flame retardant paint applied earlier by the applicant has a certain flame retardant effect after reaction of polyalcohol, flame retardant and curing agent, and is applied to the surface of a wood material to improve the flame retardance, however, in a large industrial production process, the applicant finds that when the raw material for preparation is Bayhydrol xp2470, the color is unstable and cannot achieve a transparent effect when the raw material for preparation is coated on the wood material, or the original transparent paint layer changes color in a short time after coating, the local color change causes extremely poor appearance in the use process and reduces the use value of the raw material, and the applicant has undergone a large amount of thinking in experiments, and has unexpectedly found that when the raw material for preparation comprises alcohol ester and alcohol ether, the weight ratio of the raw material for preparation is (3-6): 1, especially when the alcohol ester is dodecyl alcohol ester and the alcohol ether is dipropylene glycol methyl ether, the transparency of the finish paint is better maintained, even after one year, no color change occurs, the applicant considers that the possible reasons are that Bayhydrol xp2470 used in the preparation process is unstable, the viscosity and the pH change, and even more serious viscosity reduction occur, and in the process of polyisocyanate reaction, in a certain reaction process, the formed three-dimensional network structure is insufficient to enable hydroxyl groups in Bayhydrol xp2470 in the system to be in contact with the polyisocyanate to cause a small amount of Bayhydrol xp2470 to be directly combined with wood materials to be changed or cause coating pinholes, and the specific combination of the dodecyl alcohol ester and the dipropylene glycol methyl ether not only has proper fat branches to promote the Bayhydrol xp2470 to participate in the reaction, but also has the flexibility to continuously react with the unreacted Bayhydrol 2470 during the coating film forming, and simultaneously the grease on the surface of the wood or oozing out of the pigment materials is avoided.
The inorganic flame retardant described in the present application is not particularly limited, and those skilled in the art can make routine selections.
In one embodiment, the inorganic flame retardant is magnesium hydroxide.
The auxiliaries described in the present application are not particularly limited, and those skilled in the art can make routine selections.
In one embodiment, the adjuvant is selected from one or more of TGA polyurea, associative polyurethane, defoamer.
Preferably, the TGA polyurea is TGA609.
Preferably, the associative polyurethane has a viscosity of 2000-5000mpa.s at 25 ℃.
The associative polyurethane is purchased from Dongguan Bogao chemical engineering Co., ltd, and the model is BG2020.
The antifoaming agent described in the present application is not particularly limited, and those skilled in the art can make routine selections.
Preferably, the defoamer is Airex 901W.
In one embodiment, the polyisocyanate is an aliphatic polyisocyanate.
Preferably, the aliphatic polyisocyanate has an isocyanate group content of 15 to 25 wt.%, more preferably 16 wt.%, measured according to DIN EN ISO 11 909.
In one embodiment, the polyisocyanate is an aliphatic polyisocyanate based on hexamethylene diisocyanate.
Preferably, the aliphatic polyisocyanate based on hexamethylene diisocyanate is identified by the brand name Bayhydur 305.
The second aspect of the invention provides a method for preparing an aqueous transparent wear-resistant flame-retardant finish paint, which comprises the following steps: mixing hydroxyl polyurethane dispersoid or hydroxyl polyacrylic acid dispersoid, alcohol ester, alcohol ether, inorganic flame retardant and auxiliary agent, dispersing for 20-30min, adding polyisocyanate at 25 ℃, and mixing to obtain the final product.
In one embodiment, the method of preparing the aqueous transparent abrasion-resistant flame retardant finish comprises: mixing hydroxyl polyurethane dispersoid or hydroxyl polyacrylic acid dispersoid, alcohol ester, alcohol ether, inorganic flame retardant, auxiliary agent and acidity regulator, dispersing for 20-30min, adding polyisocyanate at 25deg.C, and mixing.
In a preferred embodiment, the method of preparing the aqueous transparent abrasion-resistant flame retardant finish comprises: mixing hydroxyl polyurethane dispersoid or hydroxyl polyacrylic acid dispersoid, alcohol ester, alcohol ether, inorganic flame retardant, auxiliary agent and acidity regulator, dispersing for 22min, adding polyisocyanate at 25deg.C, and mixing.
The water-based transparent wear-resistant flame-retardant finish paint can be used at any time, can be packaged independently, and can also be packaged after being mixed with hydroxyl polyurethane dispersoid or hydroxyl polyacrylic acid dispersoid, alcohol ester, alcohol ether, inorganic flame retardant, auxiliary agent and acidity regulator, and polyisocyanate is packaged independently.
Compared with the prior art, the invention has the following beneficial effects:
the application adopts the dodecanol ester and the dipropylene glycol methyl ether in a specific proportion, avoids the color-changing phenomenon caused by Bayhydrol xp2470, ensures the transparency of the finish paint, simultaneously ensures that the flame retardant can be uniformly distributed in the finish paint component, further improves the flame retardance, and ensures that the excellent paint film strength is kept under the condition that a large amount of contained inorganic flame retardants exist by means of the coordination reaction among all raw materials.
Detailed Description
The present invention is illustrated by the following specific embodiments, but is not limited to the specific examples given below.
Examples
Hereinafter, the present invention will be described in more detail by way of examples, but it should be understood that these examples are merely illustrative and not limitative. The raw materials used in the following examples are all commercially available, unless otherwise specified.
Example 1
The embodiment 1 of the invention provides an aqueous transparent wear-resistant flame-retardant finish paint, which is prepared from the following raw materials in parts by weight: 50 parts of hydroxyl polyacrylic acid dispersoid, 6 parts of alcohol ester, 2 parts of alcohol ether, 20 parts of inorganic flame retardant, 10 parts of polyisocyanate, 1 part of acidity regulator and 1 part of auxiliary agent.
The viscosity of the hydroxy polyacrylic acid dispersion at 23 ℃ measured according to DIN EN ISO 3219 is 1500-3000 mPa.s, the acid value measured according to DIN EN ISO 2114 is 10mgKOH/g, the hydroxyl content is 3.9wt%, and the brand is Bayhydrol xp 2470; the alcohol ester is dodecanol ester, the alcohol ether is dipropylene glycol methyl ether, the inorganic flame retardant is magnesium hydroxide, the polyisocyanate is aliphatic polyisocyanate, the content of isocyanate groups measured according to DIN EN ISO 11 909 is 16wt%, and the brand is Bayhydur 305; the acidity regulator is purchased from dow under the trade mark AMP-95; the auxiliary agent is TGA polyurea, associated polyurethane and defoamer, and the weight ratio is 1:2:0.3, wherein the TGA polyurea is TGA609, the viscosity of the associative polyurethane at 25 ℃ is 2000-5000mpa.s, and the type is BG2020; the defoamer is Airex 901W.
The preparation method of the water-based transparent wear-resistant flame-retardant finish paint comprises the following steps: mixing hydroxyl polyurethane dispersoid or hydroxyl polyacrylic acid dispersoid, alcohol ester, alcohol ether, inorganic flame retardant, auxiliary agent and acidity regulator, dispersing for 22min, adding polyisocyanate at 25deg.C, and mixing.
Example 2
The embodiment 2 of the invention provides an aqueous transparent wear-resistant flame-retardant finish paint, which is prepared from the following raw materials in parts by weight: 65 parts of hydroxyl polyacrylic acid dispersoid, 12 parts of alcohol ester, 2 parts of alcohol ether, 30 parts of inorganic flame retardant, 30 parts of polyisocyanate, 5 parts of acidity regulator and 5 parts of auxiliary agent.
The viscosity of the hydroxy polyacrylic acid dispersion at 23 ℃ measured according to DIN EN ISO 3219 is 1500-3000 mPa.s, the acid value measured according to DIN EN ISO 2114 is 10mgKOH/g, the hydroxyl content is 3.9wt%, and the brand is Bayhydrol xp 2470; the alcohol ester is dodecanol ester, the alcohol ether is dipropylene glycol methyl ether, the inorganic flame retardant is magnesium hydroxide, the polyisocyanate is aliphatic polyisocyanate, the content of isocyanate groups measured according to DIN EN ISO 11 909 is 16wt%, and the brand is Bayhydur 305; the acidity regulator is purchased from dow under the trade mark AMP-95; the auxiliary agent is TGA polyurea, associated polyurethane and defoamer, and the weight ratio is 1:2:0.3, wherein the TGA polyurea is TGA609, the viscosity of the associative polyurethane at 25 ℃ is 2000-5000mpa.s, and the type is BG2020; the defoamer is Airex 901W.
The preparation method of the water-based transparent wear-resistant flame-retardant finish paint comprises the following steps: mixing hydroxyl polyurethane dispersoid or hydroxyl polyacrylic acid dispersoid, alcohol ester, alcohol ether, inorganic flame retardant, auxiliary agent and acidity regulator, dispersing for 22min, adding polyisocyanate at 25deg.C, and mixing.
Example 3
The embodiment 3 of the invention provides an aqueous transparent wear-resistant flame-retardant finish paint, which is prepared from the following raw materials in parts by weight: 58 parts of hydroxyl polyurethane dispersion or hydroxyl polyacrylic acid dispersion, 8 parts of alcohol ester, 2 parts of alcohol ether, 25 parts of inorganic flame retardant, 20 parts of polyisocyanate, 2 parts of acidity regulator and 3.3 parts of auxiliary agent.
The viscosity of the hydroxy polyacrylic acid dispersion at 23 ℃ measured according to DIN EN ISO 3219 is 1500-3000 mPa.s, the acid value measured according to DIN EN ISO 2114 is 10mgKOH/g, the hydroxyl content is 3.9wt%, and the brand is Bayhydrol xp 2470; the alcohol ester is dodecanol ester, the alcohol ether is dipropylene glycol methyl ether, the inorganic flame retardant is magnesium hydroxide, the polyisocyanate is aliphatic polyisocyanate, the content of isocyanate groups measured according to DIN EN ISO 11 909 is 16wt%, and the brand is Bayhydur 305; the acidity regulator is purchased from dow under the trade mark AMP-95; the auxiliary agent is TGA polyurea, associated polyurethane and defoamer, and the weight ratio is 1:2:0.3, wherein the TGA polyurea is TGA609, the viscosity of the associative polyurethane at 25 ℃ is 2000-5000mpa.s, and the type is BG2020; the defoamer is Airex 901W.
The preparation method of the water-based transparent wear-resistant flame-retardant finish paint comprises the following steps: mixing hydroxyl polyurethane dispersoid or hydroxyl polyacrylic acid dispersoid, alcohol ester, alcohol ether, inorganic flame retardant, auxiliary agent and acidity regulator, dispersing for 22min, adding polyisocyanate at 25deg.C, and mixing.
Example 4
Example 4 of the present invention provides an aqueous transparent abrasion resistant flame retardant finish, which is similar to example 3 in specific embodiment except that the alcohol ether is tripropylene glycol methyl ether.
The preparation method of the water-based transparent wear-resistant flame-retardant finish paint is the same as that of example 3.
Example 5
Example 5 of the present invention provides an aqueous transparent abrasion resistant flame retardant finish, which is similar to example 3 in specific embodiment, except that the alcohol ether is dipropylene glycol butyl ether.
The preparation method of the water-based transparent wear-resistant flame-retardant finish paint is the same as that of example 3.
Example 6
Example 6 of the present invention provides an aqueous transparent abrasion-resistant flame retardant finish, which is similar to example 3 in specific embodiments, except that the associative polyurethane is replaced with a polyurethane having a weight ratio of 1:1 and leveling agent L-2875.
The preparation method of the water-based transparent wear-resistant flame-retardant finish paint is the same as that of example 3.
Performance evaluation
1. The aqueous transparent abrasion-resistant flame-retardant finish of examples 1-6 was mixed with 10wt% water, coated on the surface of a wooden material, placed in an environment of 40 ℃ and recorded for 6 months, and then the paint layer was transparent.
TABLE 1
| Example 1 | Transparent and transparent |
| Example 2 | Transparent and transparent |
| Example 3 | Transparent and transparent |
| Example 4 | Opaque |
| Example 5 | Opaque |
| Example 6 | Opaque |
2. Drying time: the surface of the paint layer is touched by hands, and the time when the viscosity disappears and the paint layer is not sticky is recorded.
The top-drying times of the finishes of examples 1-3 were all between 6 and 8 hours.
Claims (4)
1. The water-based transparent wear-resistant flame-retardant finish paint is characterized in that the preparation raw materials comprise, by weight, 50-65 parts of hydroxyl polyurethane dispersion or hydroxyl polyacrylic acid dispersion, 5-15 parts of alcohol ester, 1-5 parts of alcohol ether, 20-30 parts of inorganic flame retardant and 10-30 parts of polyisocyanate; the preparation raw materials of the water-based transparent wear-resistant flame-retardant finish paint also comprise 1-5 parts by weight of auxiliary agent; the hydroxyl polyurethane dispersion or the hydroxyl polyacrylic acid dispersion has a hydroxyl content of 1-5wt%; the viscosity of the hydroxyl polyurethane dispersion or hydroxyl polyacrylic acid dispersion at 23 ℃ measured according to DIN EN ISO 3219 is 300-3000 mPa.s; the alcohol ether is dipropylene glycol methyl ether; the weight ratio of the alcohol ester to the alcohol ether is (3-6): 1, the auxiliary agent is TGA polyurea, associated polyurethane and defoamer, and the weight ratio is 1:2:0.3; the inorganic flame retardant is magnesium hydroxide, and the alcohol ester is dodecanol ester.
2. The aqueous transparent abrasion-resistant flame-retardant finish according to claim 1, wherein the polyisocyanate is an aliphatic polyisocyanate.
3. The aqueous transparent abrasion-resistant flame-retardant finish according to claim 2, characterized in that the aliphatic polyisocyanate has an isocyanate group content of 15 to 25% by weight, measured according to DIN EN ISO 11 909.
4. A process for the preparation of an aqueous transparent abrasion-resistant flame-retardant finish according to any one of claims 1 to 3, comprising: mixing hydroxyl polyurethane dispersoid or hydroxyl polyacrylic acid dispersoid, alcohol ester, alcohol ether, inorganic flame retardant and auxiliary agent, dispersing for 20-30min, adding polyisocyanate at 25 ℃, and mixing to obtain the final product.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110818161.1A CN114921162B (en) | 2021-07-20 | 2021-07-20 | Water-based transparent wear-resistant flame-retardant finish paint and preparation method thereof |
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| CN202110818161.1A CN114921162B (en) | 2021-07-20 | 2021-07-20 | Water-based transparent wear-resistant flame-retardant finish paint and preparation method thereof |
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| CN114921162B true CN114921162B (en) | 2023-08-01 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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