CN115785787A - Polyurethane curtain coating material and preparation method thereof - Google Patents
Polyurethane curtain coating material and preparation method thereof Download PDFInfo
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- CN115785787A CN115785787A CN202211568461.XA CN202211568461A CN115785787A CN 115785787 A CN115785787 A CN 115785787A CN 202211568461 A CN202211568461 A CN 202211568461A CN 115785787 A CN115785787 A CN 115785787A
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- parts
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- coating material
- butyl acetate
- polyurethane
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- 239000000463 material Substances 0.000 title claims abstract description 32
- 239000004814 polyurethane Substances 0.000 title claims abstract description 24
- 229920002635 polyurethane Polymers 0.000 title claims abstract description 24
- 238000007766 curtain coating Methods 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 74
- 239000011248 coating agent Substances 0.000 claims abstract description 30
- 238000000576 coating method Methods 0.000 claims abstract description 30
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000003085 diluting agent Substances 0.000 claims abstract description 22
- 239000012948 isocyanate Substances 0.000 claims abstract description 21
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002518 antifoaming agent Substances 0.000 claims abstract description 16
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 14
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007665 sagging Methods 0.000 claims abstract description 12
- 239000002270 dispersing agent Substances 0.000 claims abstract description 10
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 10
- 239000004925 Acrylic resin Substances 0.000 claims abstract description 9
- 229920000178 Acrylic resin Polymers 0.000 claims abstract description 9
- 229920000180 alkyd Polymers 0.000 claims abstract description 9
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 9
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims abstract 12
- 239000011259 mixed solution Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 9
- -1 aromatic isocyanate Chemical class 0.000 claims description 7
- 239000013638 trimer Substances 0.000 claims description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 239000008096 xylene Substances 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 238000010422 painting Methods 0.000 claims 1
- 239000000454 talc Substances 0.000 claims 1
- 229910052623 talc Inorganic materials 0.000 claims 1
- 235000012222 talc Nutrition 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-M hexanoate Chemical compound CCCCCC([O-])=O FUZZWVXGSFPDMH-UHFFFAOYSA-M 0.000 description 12
- 239000003973 paint Substances 0.000 description 12
- 238000005507 spraying Methods 0.000 description 6
- 230000007547 defect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 239000012855 volatile organic compound Substances 0.000 description 4
- 238000009835 boiling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011527 polyurethane coating Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Paints Or Removers (AREA)
Abstract
The invention relates to the field of chemical coating manufacturing, in particular to a polyurethane curtain coating material which is prepared from a main agent, a curing agent and a diluent according to the following ratio of 1.2-1.5, 0.4-0.6-0.3-0.5, wherein the main agent comprises 25-40 parts of alkyd resin, 3-8 parts of propylene glycol methyl ether acetate, 20-30 parts of water-based acrylic resin, 15-20 parts of titanium dioxide, 10-20 parts of talcum powder, 2-3 parts of zinc stearate, 1-2 parts of a dispersing agent, 1-2 parts of a defoaming agent, 0.5-2 parts of an anti-sagging agent, 0.1-0.5 part of a flatting agent and 5-10 parts of butyl acetate; the curing agent comprises 55-100 parts of isocyanate and 20-35 parts of butyl acetate; the diluent comprises 10-15 parts of dimethylbenzene, 40-60 parts of propylene glycol methyl ether acetate and 20-35 parts of butyl acetate; the invention also discloses a preparation method of the coating; the coating is suitable for continuous coating of plate-type furniture, has the obvious advantages of high efficiency, low cost, less waste, labor saving, lower organic volatile matter and the like, and is suitable for large-scale and continuous coating in factories.
Description
Technical Field
The invention relates to the field of chemical coating manufacturing, in particular to a polyurethane curtain coating material and a preparation method thereof.
Background
Along with the development of national economy, people have higher and higher requirements on environmental protection, furniture manufacturing enterprises are continuously integrated, the development scale of furniture factories is larger and larger, and the requirements on the environmental protection performance and the production efficiency of coating materials are higher and higher.
In the construction process of the conventional spray polyurethane coating material, the addition amount of the diluent is more, the VOC emission is higher, the manual spray efficiency is low, and the cost is high. These have all severely restricted the development of furniture manufacturing enterprises.
The curtain coating is a construction process for pouring paint on a coated workpiece through a nozzle, namely, the paint is stored in an overhead tank and is sprayed from the top through the nozzle or a narrow slit to be coated on a coated object driven by a conveying device in a curtain shape to form a uniform coating. The spray coating has higher construction viscosity, about 50% less diluent can be added under the same condition, the VOC emission can be effectively reduced, the construction efficiency is high, for example, after the conventional manual spraying is finished, the general time of one door is 5 minutes, and the spray coating only needs 20 seconds, so that the production efficiency can be greatly improved, and the dependence on manpower is reduced.
However, the conventional curtain coating material has the defects of curtain breaking, curtain jumping, low defoaming speed, shrinkage cavity, dark bubble and the like of a paint film, and the development of curtain coating is severely restricted.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a polyurethane curtain coating material which can be applied to various plate-type furniture and is particularly suitable for large-scale and continuous coating operation in factories.
The purpose of the invention is realized by the following technical scheme:
a polyurethane curtain coating material is characterized in that the material is prepared by a main agent, a curing agent and a diluent according to a proportion;
the main agent comprises the following components: alkyd resin, propylene glycol methyl ether acetate, water-based acrylic resin, titanium dioxide, talcum powder, zinc stearate, a dispersing agent, an antifoaming agent, an anti-sagging agent, a leveling agent and butyl acetate;
the curing agent comprises the following components: isocyanate and butyl acetate;
the components of the diluent comprise: xylene, propylene glycol methyl ether acetate and butyl acetate.
Furthermore, the proportion of the main agent, the curing agent and the diluent is 1.2-1.5.
Furthermore, the main agent comprises, by weight, 25-40 parts of alkyd resin, 3-8 parts of propylene glycol methyl ether acetate, 20-30 parts of water-based acrylic resin, 15-20 parts of titanium dioxide, 10-20 parts of talcum powder, 2-3 parts of zinc stearate, 1-2 parts of dispersing agent, 1-2 parts of defoaming agent, 0.5-2 parts of anti-sagging agent, 0.1-0.5 part of leveling agent and 5-10 parts of butyl acetate.
Furthermore, the curing agent comprises, by weight, 55-100 parts of the isocyanate and 20-35 parts of butyl acetate.
Further, in the component of the curing agent, the isocyanate includes aromatic isocyanate and trimer isocyanate.
Furthermore, the components of the curing agent comprise 35-55 parts of aromatic isocyanate and 20-45 parts of trimer isocyanate according to parts by weight.
Furthermore, the components of the diluent comprise, by weight, 10-15 parts of xylene, 40-60 parts of propylene glycol monomethyl ether acetate and 20-35 parts of butyl acetate.
Further, the defoamer is selected from silicone-free polymeric defoamers, preferably BYK055, manufactured by bike corporation, 5300, manufactured by moded hamming;
and/or, the anti-sagging agent is selected from the group consisting of polyamide wax, preferably 8800 manufactured by Tesla;
and/or the leveling agent is selected from one of an acrylate leveling agent and an organic silicon leveling agent, and is preferably BYK358N produced by Pico company and TEGO450 produced by Digao company.
The invention also provides a preparation method of the polyurethane curtain coating material, which is characterized by comprising the following steps:
s1, weighing the components of the main agent, the curing agent and the diluent according to the mixture ratio of any one of claims 1-7;
preparing the main agent:
s2, mixing the weighed alkyd resin, the propylene glycol methyl ether acetate and the water-based acrylic resin, and dispersing for 5-10 minutes at the speed of 600-800 rpm to obtain a mixed solution 1;
s3, sequentially adding the weighed dispersing agent, the anti-sagging agent, the titanium dioxide, the talcum powder and the zinc stearate into the mixed solution 1, and dispersing for 10-15 minutes at the speed of 1200-1500 rpm to obtain a mixed solution 2;
s4, adding the weighed antifoaming agent, flatting agent and butyl acetate into the mixed solution 2, and dispersing for 5-10 minutes at the speed of 600-800 rpm to obtain a main agent;
the preparation of the curing agent comprises the following steps:
s5, mixing the weighed aromatic isocyanate, trimer isocyanate and butyl acetate, and dispersing for 5-10 minutes at the speed of 500-1000 revolutions per minute to obtain a curing agent;
preparation of the diluent:
s6, mixing the weighed dimethylbenzene, butyl acetate and propylene glycol monomethyl ether acetate, and dispersing for 5-10 minutes at the speed of 400-800 rpm to obtain the diluent.
The invention also provides application of the polyurethane curtain coating material in coating.
The defoaming agent used in the polyurethane curtain coating white base coating material provided by the invention adopts a polymer defoaming agent without organic silicon, and as the defoaming capability of the organic silicon defoaming agent is strong, the phenomena of curtain breaking, curtain flashing and the like caused by foam breaking during curtain coating are easily caused, so that the continuous coating of workpieces is influenced; the defoaming capability of the polymer defoaming agent used in the invention is relatively moderate, so that the foam is not easily broken when the curtain is sprayed, the stable state of the curtain is ensured, the defoaming speed of a paint film is high, and the paint film defects such as shrinkage cavity, hidden foam and the like are not generated. The leveling agent used in the polyurethane flow coating white under-coating material provided by the invention adopts an acrylate leveling agent without organic silicon, and as the organic silicon leveling agent has strong foam stabilization property, the paint film is slow to break and finally has the paint film defects of shrinkage, dark bubbles and the like, and the acrylate leveling agent is not easy to stabilize, so that the paint film has quick defoaming after being coated and has good paint film effect.
The invention also provides application of the polyurethane curtain coating material in coating.
The polyurethane curtain coating white primary coating material provided by the invention has the following advantages:
1. the curtain-spraying state is stable, and abnormal conditions such as curtain breaking, curtain flashing and the like are not easy to occur;
2. the paint film has quick defoaming, is not easy to have the defects of paint films such as shrinkage cavity, hidden bubble, oil leakage and the like, and has excellent paint film effect;
3. the coating can be applied to various plate-type furniture, and is particularly suitable for large-batch and continuous coating operation in factories.
Detailed Description
The present invention will be described in detail with reference to specific examples, but the scope of the present invention is not limited to the following.
In the following examples: the alkyd resin is odorless resin 3104-X-70 produced by the Changxing chemical industry; the water-based acrylic resin is 6105 resin produced by Shanghai Tong ocean chemical engineering Co., ltd; the anti-sagging agent is 8800 anti-sagging agent produced by Disbaron; the titanium dioxide is 996 titanium dioxide produced by Long Mang Bailey union; the talcum powder is 1250-mesh talcum powder produced by Longsheng Huamei; the zinc stearate is TV-A produced by Kao in Chuan; the dispersant is BYK110 dispersant produced by Pico company; the defoaming agent is BYK055 defoaming agent produced by Picker; the leveling agent is a TEGO-450 leveling agent produced by Digao company.
The following table 1 shows the component ratios of the examples and comparative examples of the present invention:
TABLE 1
The polyurethane curtain coating material is prepared according to the following steps:
s1, weighing the components of the main agent, the curing agent and the diluent according to the mixture ratio in the table 1;
preparing the main agent:
s2, mixing the weighed alkyd resin, the propylene glycol methyl ether acetate and the water-based acrylic resin, and dispersing for 10 minutes at the speed of 700 r/min to obtain a mixed solution 1;
s3, sequentially adding the weighed dispersing agent, the anti-sagging agent, the titanium dioxide, the talcum powder and the zinc stearate into the mixed solution 1, and dispersing for 15 minutes at the speed of 1300 revolutions per minute to obtain a mixed solution 2;
s4, adding the weighed defoaming agent, flatting agent and butyl acetate into the mixed solution 2, and dispersing for 10 minutes at the speed of 700 revolutions per minute to obtain a main agent;
the preparation of the curing agent comprises the following steps:
s5, mixing the weighed aromatic isocyanate, trimer isocyanate and butyl acetate, and dispersing for 10 minutes at the speed of 800 revolutions per minute to obtain a curing agent;
preparation of the diluent:
s6, mixing the weighed dimethylbenzene, butyl acetate and propylene glycol monomethyl ether acetate, and dispersing for 10 minutes at the speed of 600 revolutions per minute to obtain the diluent.
The products prepared in the above examples were tested and the test results are shown in tables 2, 3, 4 and 5 below.
Table 2: the product performance index test result of the embodiment of the invention
As can be seen from Table 2, the technical properties of the products of the embodiments of the polyurethane spray-coating white base coating material provided by the invention all reach or are higher than the technical indexes in the standard of the national standard GB/T23997-2009.
Table 3: environmental protection experimental data of products in the embodiment of the invention
As can be seen from the table 3, the VOC (volatile organic compound) and soluble heavy metal contained in the product of each embodiment of the invention are all superior to the GB18581-2020 standard, meet the requirements of environmental protection and health, and are safe and reliable to use.
Table 4: boiling point data for each component of the diluent of the various embodiments of the present invention
| Name (R) | Boiling point |
| Xylene | 137℃ |
| Acetic acid butyl ester | 126.5℃ |
| Propylene glycol methyl ether acetate | 146℃ |
As can be seen from Table 4, the boiling points of the components of the thinner provided by the invention are all more than or equal to 60 ℃, the thinner has a proper volatilization speed, and the decoration of the coating can be improved during coating.
Table 5: experimental data of viscosity and coating material film thickness of product prepared by embodiment of the invention
As can be seen from Table 5, the viscosity of the coating material Fu Gemian of the product of each example of the present invention is not limited by the spray coating requirement, and the hiding power is not affected even when the coating material is coated with a thick film.
The above embodiments are merely illustrative of the technical solutions of the present invention, and the present invention is not limited to the above embodiments, and any modifications or alterations according to the principles of the present invention should be within the protection scope of the present invention.
Claims (10)
1. A polyurethane drenched coating material is characterized in that the material is prepared by a main agent, a curing agent and a diluent according to a proportion;
the main agent comprises the following components: alkyd resin, propylene glycol methyl ether acetate, water-based acrylic resin, titanium dioxide, talcum powder, zinc stearate, a dispersing agent, a defoaming agent, an anti-sagging agent, a leveling agent and butyl acetate;
the curing agent comprises the following components: isocyanate and butyl acetate;
the components of the diluent comprise: xylene, propylene glycol methyl ether acetate and butyl acetate.
2. The polyurethane curtain coating material as claimed in claim 1, wherein the ratio of the main agent, the curing agent and the diluent is 1.2-1.5.
3. The polyurethane flow coating material as claimed in claim 1, wherein the main agent comprises, by weight, 25-40 parts of alkyd resin, 3-8 parts of propylene glycol methyl ether acetate, 20-30 parts of water-based acrylic resin, 15-20 parts of titanium dioxide, 10-20 parts of talc, 2-3 parts of zinc stearate, 1-2 parts of dispersing agent, 1-2 parts of defoaming agent, 0.5-2 parts of anti-sagging agent, 0.1-0.5 part of leveling agent and 5-10 parts of butyl acetate.
4. The polyurethane flow coating material as claimed in claim 1, wherein the curing agent comprises, by weight, 55-100 parts of the isocyanate and 20-35 parts of butyl acetate.
5. The polyurethane flow coating material according to claim 1, wherein the isocyanate in the curing agent component comprises aromatic isocyanate and trimer isocyanate.
6. The polyurethane flow coating material according to claim 5, wherein the curing agent comprises 35-55 parts by weight of the aromatic isocyanate and 20-45 parts by weight of the trimer isocyanate.
7. The polyurethane curtain coating material as claimed in claim 1, wherein the diluent comprises, by weight, 10-15 parts of xylene, 40-60 parts of propylene glycol methyl ether acetate and 20-35 parts of butyl acetate.
8. The polyurethane flow coating material according to claim 1, wherein the defoaming agent is selected from silicone-free polymeric defoaming agents;
and/or the anti-sagging agent is selected from polyamide wax;
and/or the leveling agent is selected from one of an acrylate leveling agent and an organic silicon leveling agent.
9. A preparation method of a polyurethane curtain coating material is characterized by comprising the following steps:
s1, weighing the components of the main agent, the curing agent and the diluent according to the mixture ratio of any one of claims 1-8;
preparing the main agent:
s2, mixing the weighed alkyd resin, the propylene glycol monomethyl ether acetate and the water-based acrylic resin, and dispersing for 5-10 minutes at the speed of 600-800 r/min to obtain a mixed solution 1;
s3, sequentially adding the weighed dispersing agent, the anti-sagging agent, the titanium dioxide, the talcum powder and the zinc stearate into the mixed solution 1, and dispersing for 10-15 minutes at the speed of 1200-1500 rpm to obtain a mixed solution 2;
s4, adding the weighed antifoaming agent, flatting agent and butyl acetate into the mixed solution 2, and dispersing for 5-10 minutes at the speed of 600-800 rpm to obtain a main agent;
the preparation of the curing agent comprises the following steps:
s5, mixing the weighed aromatic isocyanate, trimer isocyanate and butyl acetate, and dispersing for 5-10 minutes at the speed of 500-1000 rpm to obtain a curing agent;
preparation of the diluent:
s6, mixing the weighed dimethylbenzene, butyl acetate and propylene glycol monomethyl ether acetate, and dispersing for 5-10 minutes at the speed of 400-800 rpm to obtain the diluent.
10. Use of a polyurethane flowcoating material according to any of claims 1 to 9 in painting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211568461.XA CN115785787A (en) | 2022-12-08 | 2022-12-08 | Polyurethane curtain coating material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211568461.XA CN115785787A (en) | 2022-12-08 | 2022-12-08 | Polyurethane curtain coating material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115785787A true CN115785787A (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211568461.XA Pending CN115785787A (en) | 2022-12-08 | 2022-12-08 | Polyurethane curtain coating material and preparation method thereof |
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| Country | Link |
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| CN (1) | CN115785787A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403553A (en) * | 2014-11-19 | 2015-03-11 | 上海展辰涂料有限公司 | Sprayed and coated odorless polyurethane floor paint |
| CN105838234A (en) * | 2016-04-05 | 2016-08-10 | 北京展辰新材料有限公司 | Polyurethane woodenware paint, and preparation method and application thereof |
| CN106349920A (en) * | 2016-08-29 | 2017-01-25 | 山东巴德士化工有限公司 | Environment-friendly curtaining odor-removing PU matted varnish and preparation method thereof |
| CN112694826A (en) * | 2020-12-14 | 2021-04-23 | 成都展辰涂料有限公司 | High-transmittance matte clear coating and preparation method thereof |
| CN114316780A (en) * | 2021-12-22 | 2022-04-12 | 成都展辰涂料有限公司 | Polyurethane curtain coating transparent primary coating material |
-
2022
- 2022-12-08 CN CN202211568461.XA patent/CN115785787A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403553A (en) * | 2014-11-19 | 2015-03-11 | 上海展辰涂料有限公司 | Sprayed and coated odorless polyurethane floor paint |
| CN105838234A (en) * | 2016-04-05 | 2016-08-10 | 北京展辰新材料有限公司 | Polyurethane woodenware paint, and preparation method and application thereof |
| CN106349920A (en) * | 2016-08-29 | 2017-01-25 | 山东巴德士化工有限公司 | Environment-friendly curtaining odor-removing PU matted varnish and preparation method thereof |
| CN112694826A (en) * | 2020-12-14 | 2021-04-23 | 成都展辰涂料有限公司 | High-transmittance matte clear coating and preparation method thereof |
| CN114316780A (en) * | 2021-12-22 | 2022-04-12 | 成都展辰涂料有限公司 | Polyurethane curtain coating transparent primary coating material |
Non-Patent Citations (1)
| Title |
|---|
| 周建萍等: "高分子材料与工程专业实验", 30 September 2018, 北京航空航天大学出版社, pages: 137 * |
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