Detailed Description
The technical features of the technical solutions provided by the present invention will be further clearly and completely described below with reference to the specific embodiments, and it should be apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The words "preferred", "preferably", "more preferred", and the like, in the present invention, refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, and is not intended to exclude other embodiments from the scope of the invention.
The invention provides a polyurethane varnish, which comprises a component A and a component B, wherein the weight ratio of the component A to the component B is 1: (0.1-0.5);
wherein the component A comprises the following raw materials in percentage by weight: 10-30% of cellulose organic acid ester, 1-5% of organic silicon, 1-10% of matting powder, 1-5% of filler, 1-10% of auxiliary agent and acrylate resin for balancing; the component B comprises the following raw materials in percentage by weight: 20-50% of solvent, 0-1% of dehydrating agent and HDI curing agent.
In a preferred embodiment, the polyurethane varnish comprises an A component and a B component, wherein the weight ratio of the A component to the B component is 1: (0.1-0.3);
wherein the component A comprises the following raw materials in percentage by weight: 15-25% of cellulose organic acid ester, 2-4% of organic silicon, 2-8% of matting powder, 2-4% of filler, 2-8% of auxiliary agent and acrylate resin for complementing the balance; the component B comprises the following raw materials in percentage by weight: 30-40% of solvent, 0.2-0.8% of dehydrating agent and HDI curing agent.
In a preferred embodiment, the polyurethane varnish comprises an A component and a B component, wherein the weight ratio of the A component to the B component is 1: 0.2;
wherein the component A comprises the following raw materials in percentage by weight: 20% of cellulose organic acid ester, 3% of organic silicon, 5% of matting powder, 3% of filler, 5% of auxiliary agent and acrylate resin, wherein the balance is complemented; the component B comprises the following raw materials in percentage by weight: 35% of solvent, 0.5% of dehydrating agent and the balance of HDI curing agent.
Component A
In some embodiments, the silicone is a modified silicone.
In some embodiments, the modified silicone is a polyether modified silicone.
In some embodiments, the modified silicone is selected from at least one of SY-1085, SY-1086, SY-1084, SY-1088, skin feel aid MS-816, skin feel aid A3, skin feel aid 450, skin feel aid 1400 sf.
In some preferred embodiments, the modified silicone is SY-1085.
SY-1085, SY-1086, SY-1084 and SY-1088 are purchased from Yi Bo chemical company, Inc.
In some embodiments, the filler is selected from the group consisting of sand flour, talc, transparent powder, silica powder, diatomaceous earth, and combinations of one or more thereof.
In some preferred embodiments, the filler is sand flour.
In some embodiments, the sand flour has a particle size of 8 to 80 μm; preferably, the grain diameter of the sand flour is 25-45 μm; more preferably, the sand flour has a particle size of 40 μm.
In some embodiments, the grits described in the present disclosure are purchased from at least one of 3710, 3711, 5378W, 5380W, Sponger L-15, Sponger L-18, Sponger L-25, Sponger L-35, Sponger L-40, Sponger L-45, Sponger L-60, and Sponger L-80; preferably, the sand powder is purchased from at least one of Sponger L-25, Sponger L-35, Sponger L-40 and Sponger L-45; most preferably, the grits are purchased from Sponger L-40.
In some embodiments, the cellulose organic acid ester is selected from the group consisting of cellulose acetate, cellulose acetate propionate, cellulose acetate butyrate, cellulose acetate phthalate, cellulose acetate succinate in combination with one or more of them.
In some preferred embodiments, the cellulosic organic acid ester is cellulose acetate.
The acrylate resin is an acrylate resin containing polar groups.
In some preferred embodiments, the acrylate resin is a hydroxy acrylate resin.
The kind of the hydroxy acrylate resin in the present invention is not particularly limited, and preferably, the hydroxy acrylate resin is at least one selected from the group consisting of FS-2460A, FS-2060A, Issman Uracrron 7122X-50, AC1150, Alcreset7105, AC4701, AC1010 and AC 3916; more preferably, the hydroxy acrylate resin is selected from at least one of FS-2460A, FS-2060A, Issman Uracron 7122X-50, AC1150, Alcreset 7105; most preferably, the hydroxy acrylate resin is FS-2460A.
In some embodiments, the adjuvant comprises at least one of a dispersant, a defoamer, a leveling agent, uv absorption resistance, an antioxidant; preferably, the auxiliary agent comprises a combination of a dispersant, a defoamer and a leveling agent.
In some embodiments, the weight ratio of the dispersant, the defoamer and the leveling agent is 1: (0-0.4): (0-0.2); preferably, the weight ratio of the dispersing agent to the defoaming agent to the leveling agent is 1: 0.2: 0.1.
the kind of the dispersant in the invention is not particularly limited, preferably, the dispersant is at least one selected from EFKA4010, BYK110, BYK103 and TEGOtwin 4100; more preferably, the dispersant is TEGOtwin 4100.
The type of the defoaming agent in the present invention is not particularly limited, and preferably, the defoaming agent is at least one selected from BYK052, BYK066N, BYK141, BYK8800, AC270, AC300, and HX 2300; more preferably, the defoamer is BYK 052.
The kind of the leveling agent in the invention is not particularly limited, preferably, the leveling agent is selected from at least one of BYK358N, BYK333, BYK323, TEGO450 and EFKA 3777; more preferably, the leveling agent is BYK 358N.
The type of the anti-ultraviolet absorbent in the present invention is not particularly limited, and preferably, the anti-ultraviolet absorbent is at least one selected from Tinuvin292, Tinuvin1130, C81, UV362 and UV-P; more preferably, the anti-ultraviolet absorbent is at least one of Tinuvin292 and Tinuvin 1130.
The kind of the antioxidant in the present invention is not particularly limited, and preferably, the antioxidant is at least one selected from the group consisting of antioxidant 1010, antioxidant 1076, antioxidant 1330, and antioxidant 1098.
B component
In some embodiments, the solvent is selected from at least one of butyl acetate, ethyl acetate, dimethyl carbonate, propylene glycol methyl ether acetate; preferably, the solvent is selected from at least one of butyl acetate and ethyl acetate; preferably, the solvent is butyl acetate.
In some embodiments, the dehydrating agent is selected from at least one of dehydrating agent 902, dehydrating agent BF-5, dehydrating agent G-180; preferably, the dehydrating agent is a dehydrating agent BF-5.
In some embodiments, the HDI curing agent is selected from at least one of HT-100, HT-600, N3390, HI-100.
The second aspect of the present invention provides a method for preparing the dyed veneer paint, which at least comprises the following steps: adding the auxiliary agent into the acrylate resin and the cellulose organic acid ester, uniformly mixing, adding the first filler and the second filler, and uniformly dispersing to obtain a component A; and (3) adding the dehydrating agent and the HDI curing agent into the solvent, and mixing and stirring uniformly to obtain the component B.
The second aspect of the present invention provides a method for preparing the polyurethane varnish, which at least comprises the following steps: mixing and stirring cellulose organic acid ester, acrylate resin, organic silicon, an auxiliary agent, matting powder and a filler uniformly to obtain a component A; and adding the dehydrating agent and the HDI curing agent into the solvent, and uniformly stirring to obtain the component B.
In some preferred embodiments, the preparation method of the polyurethane varnish comprises at least the following steps: uniformly mixing cellulose organic acid ester, acrylate resin and organic silicon, continuously adding an auxiliary agent, uniformly mixing, finally adding matting powder and a filler, and uniformly stirring to obtain a component A; and adding the dehydrating agent and the HDI curing agent into the solvent, and uniformly stirring to obtain the component B.
The third aspect of the invention provides an application of the polyurethane varnish, which is applied to furniture and wall decoration.
The present invention is described in detail below by way of examples, and it should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention.
Example 1
A polyurethane varnish is prepared from a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.2; the component A comprises the following raw materials in percentage by weight: 20% of cellulose organic acid ester, 3% of organic silicon, 5% of matting powder, 3% of filler, 5% of auxiliary agent and acrylate resin, wherein the balance is complemented; the component B comprises the following raw materials in percentage by weight: 35% of solvent, 0.5% of dehydrating agent and the balance of HDI curing agent.
The organic silicon is SY-1085, model number of Anhui Yibo chemical industry Co.
The filler is sand flour and the grade is Sponger L-40.
The cellulose organic acid ester is cellulose acetate.
The acrylate resin is hydroxy acrylate resin, and the hydroxy acrylate resin is FS-2460A.
The auxiliary agent comprises a combination of a dispersing agent, a defoaming agent and a leveling agent. The weight ratio of the dispersing agent to the defoaming agent to the flatting agent is 1: 0.2: 0.1.
the dispersant is TEGOtwin 4100.
The defoaming agent is BYK 052.
The leveling agent is BYK 358N.
The solvent is butyl acetate.
The dehydrating agent is BF-5.
The HDI curing agent is selected from HT-100.
The preparation method of the polyurethane varnish at least comprises the following steps: uniformly mixing cellulose organic acid ester, acrylate resin and organic silicon, continuously adding an auxiliary agent, uniformly mixing, finally adding matting powder and a filler, and uniformly stirring to obtain a component A; and adding the dehydrating agent and the HDI curing agent into the solvent, and uniformly stirring to obtain the component B.
Example 2
A polyurethane varnish is prepared from a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.1; wherein the component A comprises the following raw materials in percentage by weight: 15% of cellulose organic acid ester, 2% of organic silicon, 2% of matting powder, 2% of filler, 2% of auxiliary agent and the balance of acrylic resin; the component B comprises the following raw materials in percentage by weight: 30 percent of solvent, 0.2 percent of dehydrating agent and HDI curing agent to complement the balance.
The organosilicon is available from Yibo chemical industry Co., Ltd, model number MS-816, and purchased from Yongming deep chemical industry.
The filler is sand flour and the mark is Sponger L-25.
The cellulose organic acid ester is cellulose acetate.
The acrylate resin is hydroxyl acrylate resin, and the hydroxyl acrylate resin is Dismann Uracron 7122X-50.
The auxiliary agent is a dispersant.
The dispersant is TEGOtwin 4100.
The defoaming agent is BYK 052.
The leveling agent is BYK 358N.
The solvent is butyl acetate.
The dehydrating agent is BF-5.
The HDI curing agent is selected from HT-600.
The preparation method of the polyurethane varnish at least comprises the following steps: uniformly mixing cellulose organic acid ester, acrylate resin and organic silicon, continuously adding an auxiliary agent, uniformly mixing, finally adding matting powder and a filler, and uniformly stirring to obtain a component A; and adding the dehydrating agent and the HDI curing agent into the solvent, and uniformly stirring to obtain the component B.
Example 3
A polyurethane varnish is prepared from a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.3; wherein the component A comprises the following raw materials in percentage by weight: 25% of cellulose organic acid ester, 4% of organic silicon, 8% of matting powder, 4% of filler, 8% of auxiliary agent and acrylate resin for complementing the balance; the component B comprises the following raw materials in percentage by weight: 40 percent of solvent, 0.8 percent of dehydrating agent and HDI curing agent to complement the balance.
The silicone was a skin-feel aid 1400sf, purchased from lubrian.
The filler is sand flour and the mark is Sponger L-45.
The cellulose organic acid ester is cellulose acetate.
The acrylate resin is hydroxy acrylate resin, and the hydroxy acrylate resin is AC 1150.
The auxiliary agent comprises a combination of a dispersing agent, a defoaming agent and a leveling agent. The weight ratio of the dispersing agent to the defoaming agent to the flatting agent is 1: 0.4: 0.2.
the dispersant is TEGOtwin 4100.
The defoaming agent is BYK 052.
The leveling agent is BYK 358N.
The solvent is butyl acetate.
The dehydrating agent is a dehydrating agent G-180.
The HDI curing agent is selected from N3390.
The preparation method of the polyurethane varnish at least comprises the following steps: uniformly mixing cellulose organic acid ester, acrylate resin and organic silicon, continuously adding an auxiliary agent, uniformly mixing, finally adding matting powder and a filler, and uniformly stirring to obtain a component A; and adding the dehydrating agent and the HDI curing agent into the solvent, and uniformly stirring to obtain the component B.
Example 4
A polyurethane varnish is prepared from a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.2; wherein the component A comprises the following raw materials in percentage by weight: 20% of cellulose organic acid ester, 3% of organic silicon, 5% of matting powder, 3% of filler, 5% of auxiliary agent and acrylate resin, wherein the balance is complemented; the component B comprises the following raw materials in percentage by weight: 35% of solvent, 0.5% of dehydrating agent and the balance of HDI curing agent.
The organic silicon is SY-1084, model number of Anhui Yibo chemical industry Co.
The filler is sand flour and the grade is Sponger L-40.
The cellulose organic acid ester is cellulose acetate.
The acrylate resin is hydroxy acrylate resin, and the hydroxy acrylate resin is FS-2460A.
The auxiliary agent comprises a combination of a dispersing agent, a defoaming agent and a leveling agent. The weight ratio of the dispersing agent to the defoaming agent to the flatting agent is 1: 0.2: 0.1.
the dispersant is TEGOtwin 4100.
The defoaming agent is BYK 052.
The leveling agent is BYK 358N.
The solvent is butyl acetate.
The dehydrating agent is BF-5.
The HDI curing agent is selected from HT-100.
The preparation method of the polyurethane varnish at least comprises the following steps: uniformly mixing cellulose organic acid ester, acrylate resin and organic silicon, continuously adding an auxiliary agent, uniformly mixing, finally adding matting powder and a filler, and uniformly stirring to obtain a component A; and adding the dehydrating agent and the HDI curing agent into the solvent, and uniformly stirring to obtain the component B.
Example 5
A polyurethane varnish is prepared from a component A and a component B, wherein the weight ratio of the component A to the component B is 1: 0.2; wherein the component A comprises the following raw materials in percentage by weight: 20% of cellulose organic acid ester, 3% of organic silicon, 5% of matting powder, 3% of filler, 5% of auxiliary agent and acrylate resin, wherein the balance is complemented; the component B comprises the following raw materials in percentage by weight: 35 percent of solvent, 0.5 percent of dehydrating agent and HDI curing agent to complement the balance.
The organic silicon is SH-024 acrylic acid modified organic silicon resin of New four seas chemical industry Co., Ltd.
The filler is sand flour and the grade is Sponger L-40.
The cellulose organic acid ester is cellulose acetate.
The acrylate resin is hydroxy acrylate resin, and the hydroxy acrylate resin is FS-2460A.
The auxiliary agent comprises a combination of a dispersing agent, a defoaming agent and a leveling agent. The weight ratio of the dispersing agent to the defoaming agent to the flatting agent is 1: 0.2: 0.1.
the dispersant is TEGOtwin 4100.
The defoaming agent is BYK 052.
The leveling agent is BYK 358N.
The solvent is butyl acetate.
The dehydrating agent is a dehydrating agent BF-5.
The HDI curing agent is selected from HT-100.
The preparation method of the polyurethane varnish at least comprises the following steps: uniformly mixing cellulose organic acid ester, acrylate resin and organic silicon, continuously adding an auxiliary agent, uniformly mixing, finally adding matting powder and a filler, and uniformly stirring to obtain a component A; and adding the dehydrating agent and the HDI curing agent into the solvent, and uniformly stirring to obtain the component B.
Performance testing
The polyurethane varnish prepared in example 1 was subjected to the following property tests, and the test results are shown in table 1.
Table 1 example performance test data
2. The polyurethane varnish prepared in the embodiment 1-5 is subjected to a fineness test and a skin feel effect test according to GB/T1724-1979, and the skin feel effect test adopts a hand touch and is divided into evaluation of good skin feel effect, common skin feel effect and poor skin feel effect; the test results are shown in table 2.
TABLE 2 fineness, skin feel Effect test results
Examples
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Fineness of fineness
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Skin feel effect
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Example 1
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Qualified
|
Good skin feeling effect
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Example 2
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Qualified
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General skin feel effect
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Example 3
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Qualified
|
Good skin feeling effect
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Example 4
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Qualified
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Poor skin feel effect
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Example 5
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Fail to be qualified
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Poor skin feel effect |
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may modify or change the technical content disclosed above into an equivalent embodiment with equivalent changes, but all those simple modifications, equivalent changes and modifications made on the above embodiment according to the technical spirit of the present invention still belong to the protection scope of the present invention.