Antibacterial, antiviral and anti-fouling coating for removing formaldehyde and peculiar smell and preparation method of antibacterial, antiviral and anti-fouling coating

Abstract

The invention relates to the technical field of anti-fouling coatings, in particular to an antibacterial, antiviral and anti-fouling coating for removing formaldehyde and peculiar smell and a preparation method of the antibacterial, antiviral and anti-fouling coating. A conventional anti-fouling coating does not have the effects of resisting bacteria and viruses and removing formaldehyde and peculiar smell. Aiming at the technical problems, the invention provides the antibacterial, antiviral and anti-fouling coating for removing formaldehyde and peculiar smell, a functional additive in the formula of the antibacterial, antiviral and anti-fouling coating is an anti-mildew and antibacterial agent KP-J150, the anti-mildew and antibacterial agent KP-J150 is added into a coating system in a manner of prefabricated slurry, and the obtained coating has relatively good antibacterial, antiviral and formaldehyde-removing and peculiar smell-removing effects; compared with KF136, the antibacterial agent LICHUWEI # imgabs0 # LICHUWEI # imgabs1 # and the like has obvious advantages when being added into a coating system obtained by the preparation method disclosed by the invention.

Description

Technical Field

[0001] The invention relates to the technical field of coatings, and in particular to an antibacterial, antiviral and antifouling coating capable of removing formaldehyde and odor. Background Art

[0002] In daily life, wooden furniture surfaces such as floors are easily invaded by external stains. The root cause of this problem is that the wooden material itself lacks effective anti-fouling coatings, or the existing coatings do not have sufficient anti-fouling properties. This not only makes the furniture surface dirty and messy, affecting the overall appearance, but even worse, in a humid and dark environment, wooden furniture is prone to mold and blackening, and even becomes a breeding ground for various viruses, posing a serious threat to human health.

[0003] To solve this problem, research has found silicone-modified polyurethane acrylate coatings. This coating introduces silicone structures into the molecular structure of polyurethane acrylate, which significantly reduces the surface energy of the coating. This means that when stains come into contact with the surface of the coating, due to the difference in surface energy, the stains are difficult to adhere firmly, thus greatly improving the stain resistance of the coating. This feature makes the surface of wooden furniture easier to clean and keeps it shiny and new for a long time.

[0004] However, although traditional anti-fouling coatings can resist stains to a certain extent, they are incapable of resisting bacteria, viruses, formaldehyde and odor. As consumers' requirements for a healthier home environment continue to increase, these traditional coatings have been unable to meet the diversified needs of the market.

[0005] In summary, the stain problem on the surface of wooden furniture cannot be ignored, and silicone-modified polyurethane acrylate coatings, with their excellent stain resistance, provide an effective way to solve this problem. At the same time, we should also see that the functional limitations of traditional anti-fouling coatings call for the emergence of more comprehensive and efficient coating products. Summary of the invention

[0006] The problem in the prior art is that conventional antifouling coatings do not have the effects of antibacterial, antiviral, formaldehyde and odor removal. In view of the above technical problems, the present invention provides an antibacterial, antiviral and antifouling coating that removes formaldehyde and odors, and the formula thereof includes the following components by weight ratio:

[0007] Silicone modified polyurethane acrylate 25-35%;

[0008] Polyurethane acrylate 10-20%;

[0009] Active monomer 40-50%;

[0010] Photoinitiator 4-7%;

[0011] The prefabricated slurry contains 4-6% of mildew and antibacterial agent KP-J150, dispersant and anti-settling agent.

[0012] Preferably, the weight ratio of the mildew and antibacterial agent KP-J150 to the dispersant and anti-settling agent in the prefabricated slurry is 25-50:20-40:5-10.

[0013] Preferably, the dispersant is TEGO DISPER670.

[0014] Preferably, the anti-settling agent is fumed silica.

[0015] Preferably, the fumed silica is Taicang Xinhong XH-150.

[0016] Preferably, the organosilicon-modified polyurethane acrylate includes one of HM-5016, HM-5017, HM-5019, or a combination of two or more thereof.

[0017] Preferably, the polyurethane acrylate is hexafunctional.

[0018] Preferably, the reactive monomer includes one or a combination of two or more of a difunctional acrylate monomer and a multifunctional acrylate monomer.

[0019] Preferably, the bifunctional acrylate monomer includes one or a combination of two or more of HDDA, DPGDA and TPGDA.

[0020] Preferably, the multifunctional acrylate monomer includes one or both of TMPTA and PETA.

[0021] The present invention has the following beneficial effects:

[0022] (1) The coating obtained by the present invention not only has good anti-fouling, wear resistance and scratch resistance, but also has good antibacterial, antiviral, formaldehyde removal and odor removal effects, and has good market prospects;

[0023] (2) The present invention has found that when the mildew and antibacterial agent KP-J150 is added to the coating system, the obtained coating not only has a good antibacterial effect, but also has an excellent formaldehyde removal effect, which is a performance that other antibacterial agent products do not have. For example, KF136 is a silver-zinc composite antibacterial agent with a significant effect. It can play a good antibacterial effect in the coating system, but its formaldehyde removal effect is not very obvious. Similar antibacterial agents include C80, C90, etc.

[0024] (3) The mildew and antibacterial agent KP-J150 added to the coating system of the present invention has a more significant formaldehyde removal effect in the coating system than zinc ricinoleate, a commonly used formaldehyde removal additive in the coating system;

[0025] (4) The present invention adds the antifungal and antibacterial agent KP-J150 to the coating system in the form of a prefabricated slurry. Compared with directly adding the antifungal and antibacterial agent KP-J150 powder to the coating system, the antifungal and antibacterial agent KP-J150 in the obtained coating system has better dispersibility, and the antibacterial and formaldehyde removal effects of the coating are better. DETAILED DESCRIPTION

[0026] The present invention is described in detail below with reference to the examples. However, it should be understood that the following examples are only illustrative of the embodiments of the present invention, and are not intended to limit the scope of the present invention.

[0027] The mildew and antibacterial agent KP-J150 in the following examples of the present invention was purchased from Guangdong Kepuin Biotechnology Co., Ltd.

[0028] Example 1

[0029] An antibacterial, antiviral and antifouling paint for removing formaldehyde and odor, the formula of which is calculated by weight, and the ingredients are as follows:

[0030]

[0031]

[0032] The prefabricated slurry is formed by uniformly mixing the mildew and antibacterial agent KP-J150, the dispersant and the anti-settling agent in a weight ratio of 25:20:5.

[0033] The dispersant is TEGO DISPER670, and the fumed silica is Taicang Xinhong XH-150.

[0034] The organosilicon-modified polyurethane acrylate is HM-5016 (purchased from Jiangxi Kunlong New Materials Co., Ltd.).

[0035] The polyurethane acrylate is six-functionality polyurethane acrylate 6145-100 produced by Changxing, Taiwan, China.

[0036] The active monomer is a mixture of HDDA and TMPTA in a weight ratio of 2:1.

[0037] The photoinitiator is composed of photoinitiator 184, photoinitiator TPO and photoinitiator MBF in a mass ratio of 2:2:1.

[0038] Example 2

[0039] An antibacterial, antiviral and antifouling paint for removing formaldehyde and odor, the formula of which is calculated by weight, and the ingredients are as follows:

[0040]

[0041] The prefabricated slurry is formed by uniformly mixing the mildew and antibacterial agent KP-J150, the dispersant and the anti-settling agent in a weight ratio of 35:32:7.

[0042] The dispersant is TEGO DISPER670, and the fumed silica is Taicang Xinhong XH-150.

[0043] The organosilicon-modified polyurethane acrylate is HM-5017 (purchased from Jiangxi Kunlong New Materials Co., Ltd.).

[0044] The polyurethane acrylate is Sartomer CN9010.

[0045] The active monomer is a mixture of DPGDA and PETA in a weight ratio of 3:1.

[0046] The photoinitiator is composed of photoinitiator 1173, photoinitiator TPO and photoinitiator MBF in a mass ratio of 1:1:1.

[0047] Example 3

[0048] An antibacterial, antiviral and antifouling paint for removing formaldehyde and odor, the formula of which is calculated by weight, and the ingredients are as follows:

[0049]

[0050]

[0051] The prefabricated slurry is formed by uniformly mixing the mildew and antibacterial agent KP-J150, the dispersant and the anti-settling agent in a weight ratio of 50:40:10.

[0052] The dispersant is TEGO DISPER670, and the fumed silica is Taicang Xinhong XH-150.

[0053] The organosilicon-modified polyurethane acrylate is HM-5019 (purchased from Jiangxi Kunlong New Materials Co., Ltd.).

[0054] The polyurethane acrylate is Sartomer CN9010.

[0055] The active monomer is a mixture of TPGDA and PETA in a weight ratio of 1:1.

[0056] The photoinitiator is composed of photoinitiator 819, photoinitiator TPO and photoinitiator MBF in a mass ratio of 1:3:1.

[0057] Comparative Example 1 is the same as Example 1, except that zinc ricinoleate is used in Comparative Example 1 to replace the mildew and antibacterial agent KP-J150 in Example 1.

[0058] Comparative Example 2 is the same as Example 1, except that the antibacterial agent KF136 (purchased from Huizhou Mingkai Antibacterial and Antimicrobial Technology Co., Ltd.) is used in Comparative Example 2 to replace the antibacterial and antimicrobial agent KP-J150 in Example 1.

[0059] Comparative Example 3 is the same as Example 1, except that C80 (purchased from Wusuowei Biopharmaceutical Co., Ltd.) replaced the mildew and antibacterial agent KP-J150 in Example 1.

[0060] Comparative Example 4 is the same as Example 1, except that C90 (purchased from Wusuowei Biopharmaceutical Co., Ltd.) replaced the mildew and antibacterial agent KP-J150 in Example 1.

[0061] Comparative Example 5 is the same as Example 1, except that homemade glycerol copper is used in Comparative Example 5 to replace the mildew and antibacterial agent KP-J150 in Example 1. The homemade glycerol copper is a mixture of copper hydroxide, glycerol and sodium hydroxide in a mass ratio of 50:49.5:0.5.

[0062] Comparative Example 6 is the same as Example 1, except that the anti-settling agent in the prefabricated slurry of Comparative Example 6 is Japan Tokuyama hydrophobic fumed silica (item number DSQG20L, purchased from Guangzhou Xiyi Chemical Co., Ltd.).

[0063] Comparative Example 7 is the same as Example 1, except that the anti-settling agent in the prefabricated slurry of Comparative Example 7 is Huifu nano-silica reinforced anti-settling HL-200 (purchased from Hubei Huifu Nanomaterials Co., Ltd.).

[0064] Comparative Example 8 is the same as Example 1, except that the anti-settling agent in the prefabricated slurry of Comparative Example 8 is fumed silica A200 (purchased from Shandong Kasong New Materials Co., Ltd.).

[0065] Comparative Example 9 is the same as Example 1, except that the dispersant in the prefabricated slurry of Comparative Example 9 is Lubrizol 41000 from the United States.

[0066] Comparative Example 10 is the same as Example 1, except that the dispersant in the prefabricated slurry of Comparative Example 10 is BASF Efka dispersant 4010.

[0067] Comparative Example 11 is the same as Example 1, except that the dispersant in the prefabricated slurry of Comparative Example 11 is German BYK dispersant BYK9076.

[0068] Comparative Example 12 is the same as Example 1, except that the dispersant in the prefabricated slurry of Comparative Example 12 is German BYK dispersant BYK-2013.

[0069] Comparative Example 13 is the same as Example 1, except that the antifungal and antibacterial agent KP-J150, dispersant, and anti-settling agent in Comparative Example 13 are not premixed to form a prefabricated slurry, but are directly added to the coating system to form a coating composition. The amounts of the antifungal and antibacterial agent KP-J150, dispersant, and anti-settling agent added to the coating system are the same as those in Example 1.

[0070] Performance Testing

[0071] The coatings obtained in the embodiments of the present invention and the comparative examples were subjected to relevant tests, and the specific test results are shown in Table 1 and Table 1.

[0072] Antibacterial property: Tested in accordance with Appendix B film-sticking method of standard QB / T 4371-2012 Evaluation of furniture antibacterial properties.

[0073] Antiviral: Tested in accordance with ISO 21702-2019 Determination of antiviral activity on plastics and other non-porous surfaces.

[0074] Antifouling: Tested according to the antifouling test method described in standard EN423. The criteria for judging excellent antifouling are as follows:

[0075] Deli Stationery - Black Marker: Graffiti, wait for the graffiti to dry, then wipe it with a dry cloth:

[0076] No trace: Excellent

[0077] Very light marks: Good

[0078] Slight traces but no effect on the base material pattern: General

[0079] Complete inability to erase graffiti: Poor.

[0080] Scratch resistance: The test standard is ISO1518-2: 1992. The diameter of the steel ball of the test needle is 1mm. Use an electric scratch tester to perform a unidirectional scratch test on the coating surface at a speed of 20mm / s. The scratch length is 50mm. Repeat the experiment 3-5 times, take the average value, and continuously increase the load size when the steel needle is scratching. Record the load when the coating begins to be scratched by the steel needle. This is used as an indicator to evaluate the scratch resistance of the coating. The greater the load, the better the scratch resistance.

[0081] Formaldehyde removal performance: The test standard is GB / T33610.2-2017

[0082] Deodorization performance: The test standard is GB / T33610.2-2017.

[0083] Table 1

[0084]

[0085] Table 1

[0086]

[0087] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An antibacterial, antiviral and antifouling coating for removing formaldehyde and odor, characterized in that: The composition includes the following ingredients by weight: Silicone modified polyurethane acrylate 25-35%; Polyurethane acrylate 10-20%; Active monomer 40-50%; Photoinitiator 4-7%; The prefabricated slurry contains 4-6% of mildew and antibacterial agent KP-J150, dispersant and anti-settling agent.

2. The antibacterial, antiviral and antifouling coating according to claim 1, characterized in that: The weight ratio of the mildew and antibacterial agent KP-J150 to the dispersant and anti-settling agent in the prefabricated slurry is 25-50:20-40:5-10.

3. The antibacterial, antiviral and antifouling coating according to claim 1, characterized in that: The dispersant is TEGO DISPER670.

4. The antibacterial, antiviral and antifouling coating according to claim 1, characterized in that: The anti-settling agent is fumed silica.

5. The antibacterial, antiviral and antifouling coating according to claim 4, characterized in that: The fumed silica is Taicang Xinhong XH-150.

6. The antibacterial, antiviral and antifouling coating according to claim 1, characterized in that: The organosilicon-modified polyurethane acrylate includes one of HM-5016, HM-5017, and HM-5019, or a combination of two or more thereof.

7. The antibacterial, antiviral and antifouling coating according to claim 1, characterized in that: The polyurethane acrylate is hexafunctional.

8. The antibacterial, antiviral and antifouling coating according to claim 1, characterized in that: The active monomer includes one or a combination of two or more of a difunctional acrylate monomer and a multifunctional acrylate monomer.

9. The antibacterial, antiviral and antifouling coating according to claim 8, characterized in that: The bifunctional acrylate monomer includes one or a combination of two or more of HDDA, DPGDA and TPGDA.

10. The antibacterial, antiviral and antifouling coating according to claim 8, characterized in that: The multifunctional acrylate monomer includes one or both of TMPTA and PETA.

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