CN113444403A - Resin-free UV white slurry and preparation method thereof - Google Patents
Resin-free UV white slurry and preparation method thereof Download PDFInfo
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- CN113444403A CN113444403A CN202110730706.3A CN202110730706A CN113444403A CN 113444403 A CN113444403 A CN 113444403A CN 202110730706 A CN202110730706 A CN 202110730706A CN 113444403 A CN113444403 A CN 113444403A
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- resin
- free
- polymerization inhibitor
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- white
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D17/00—Pigment pastes, e.g. for mixing in paints
- C09D17/004—Pigment pastes, e.g. for mixing in paints containing an inorganic pigment
- C09D17/007—Metal oxide
- C09D17/008—Titanium dioxide
Abstract
The invention provides resin-free UV white slurry which comprises the following raw materials in percentage by mass: dipropylene glycol diacrylate: 20-30%, polymerization inhibitor: 0.2% -0.5%, dispersant: 3% -6%, titanium dioxide: 65% -75%, fumed silica: 0.3 to 0.8 percent. The resin-free UV white paste has the characteristics of safety, environmental protection, storage stability, lower viscosity, improved adhesive force and better thixotropy, can be used for oil coatings of polyurethane acrylate systems, polyester acrylate systems, epoxy acrylate systems and the like, and has strong universality and high pigment content.
Description
Technical Field
The invention belongs to the technical field of color paste of paint, and relates to resin-free UV white paste and a preparation method thereof.
Background
The oily UV white slurry sold in the market at present is a product formed by adding a wetting dispersant to improve the dispersibility of toner by adopting epoxy acrylic resin or polyurethane acrylic resin as a raw material. The pigment has the advantages of good tinting strength, good covering power and the like, but the defects of poor universality, low pigment content and the like generally exist.
Disclosure of Invention
The invention aims to provide a resin-free UV white paste and a preparation method thereof, so as to overcome the defects and shortcomings of poor universality, low pigment content and the like in the prior art.
The invention is realized by the following technical scheme:
the invention discloses resin-free UV white slurry which is characterized by comprising the following raw materials in percentage by mass:
wherein the CAS number of the dipropylene glycol diacrylate (DPGDA for short) is 57472-68-1, and the chemical formula is C12H18O5For example: products of Zhanxin (China) Co., Ltd;
the polymerization inhibitor is a substituted phenol polymerization inhibitor such as: one or more of hydroquinone monomethyl ether, p-hydroxyanisole and p-tert-butyl catechol; preferred are p-hydroxyanisoles, such as: jiangsu Minglin chemical technology Co., Ltd.
The dispersant is one or more of a lipid copolymer with pigment philic acid groups, modified polyurethane and a block copolymer of modified acrylic acid; for example: BYK-2013 from Pick.
The invention discloses a preparation method of resin-free UV white slurry, which is characterized by comprising the following steps of: (1) mixing the dipropylene glycol diacrylate, the polymerization inhibitor, the dispersing agent, the titanium dioxide and the fumed silica according to respective mass fractions, and dispersing at a high speed to prepare paste; (2) grinding the paste to a specified fineness to obtain the resin-free UV white paste;
wherein in the step (1), the high-speed dispersion speed is 1500-2500 rpm; in the step (2), the fineness is 10-15 μm.
The invention has the beneficial effects that:
the resin-free UV white paste has the advantages of safety, environmental protection, storage stability, lower viscosity, contribution to leveling the surface of a coating film, improvement of adhesive force and obviously better thixotropy than a commercially available product; can be used for oil paint of polyurethane acrylate system, polyester acrylate system, epoxy acrylate system and the like, and has the characteristics of strong universality and high pigment content.
Detailed Description
The present invention will be further described with reference to the following examples. It should be understood that the following examples are illustrative only and are not intended to limit the scope of the present invention.
The experimental procedures, in which specific conditions are not specified, in the following examples are generally conducted under conventional conditions, or under conditions provided by the manufacturers.
Example 1
The resin-free UV white slurry is prepared from the following raw materials in percentage by mass:
DPGDA: 20.4%, polymerization inhibitor (p-hydroxyanisole): 0.2%, dispersant (Tilo-7500): 2% and titanium dioxide: 75%, fumed silica: 0.4 percent.
The preparation method comprises the following steps: (1) mixing DPGDA, polymerization inhibitor, dispersant, titanium pigment and fumed silica according to respective mass fractions, and dispersing at the rate of 1800rpm to prepare paste; (2) grinding the paste in a sand mill until the fineness is less than or equal to 15 mu m to obtain the resin-free UV white paste.
Example 2
The resin-free UV white slurry is prepared from the following raw materials in percentage by mass:
DPGDA: 30%, polymerization inhibitor (p-hydroxyanisole): 0.3%, dispersant (Tilo-7500): 3.5% and titanium dioxide: 65.5%, fumed silica: 0.7 percent.
The preparation method comprises the following steps: (1) mixing DPGDA, polymerization inhibitor, dispersant, titanium pigment and fumed silica according to respective mass fractions, and dispersing at the rate of 1800rpm to prepare paste; (2) grinding the paste in a sand mill until the fineness is less than or equal to 15 mu m to obtain the resin-free UV white paste.
Example 3
The resin-free UV white slurry is prepared from the following raw materials in percentage by mass:
DPGDA: 25.3%, polymerization inhibitor (p-hydroxyanisole): 0.3%, dispersant (Tilo-7500): 3.8% and titanium dioxide: 70%, fumed silica: 0.6 percent.
The preparation method comprises the following steps: (1) mixing DPGDA, polymerization inhibitor, dispersant, titanium pigment and fumed silica according to respective mass fractions, and dispersing at the speed of 2000rpm to prepare paste; (2) grinding the paste in a sand mill until the fineness is less than or equal to 15 mu m to obtain the resin-free UV white paste.
Example 4
The resin-free UV white slurry is prepared from the following raw materials in percentage by mass:
DPGDA: 22.5%, polymerization inhibitor (p-hydroxyanisole): 0.4%, dispersant (Tilo-7500): 4.2% and titanium dioxide: 72.4%, fumed silica: 0.5 percent.
The preparation method comprises the following steps: (1) mixing DPGDA, polymerization inhibitor, dispersant, titanium pigment and fumed silica according to respective mass fractions, and dispersing at the speed of 2200rpm to prepare paste; (2) grinding the paste in a sand mill until the fineness is less than or equal to 15 mu m to obtain the resin-free UV white paste.
Example 5
The resin-free UV white slurry is prepared from the following raw materials in percentage by mass:
DPGDA: 22.5% and a polymerization inhibitor (hydroquinone monomethyl ether): 0.4%, dispersant (Tilo-7500): 4.2% and titanium dioxide: 72.4%, fumed silica: 0.5 percent.
The preparation method comprises the following steps: (1) mixing DPGDA, polymerization inhibitor, dispersant, titanium pigment and fumed silica according to respective mass fractions, and dispersing at the speed of 2200rpm to prepare paste; (2) grinding the paste in a sand mill until the fineness is less than or equal to 15 mu m to obtain the resin-free UV white paste.
Example 6
The resin-free UV white slurry is prepared from the following raw materials in percentage by mass:
DPGDA: 27.8% of polymerization inhibitor (hydroquinone monomethyl ether): 0.4%, dispersant (Tilo-7500): 3.2% and titanium dioxide: 67.8%, fumed silica: 0.8 percent.
The preparation method comprises the following steps: (1) mixing DPGDA, polymerization inhibitor, dispersant, titanium pigment and fumed silica according to respective mass fractions, and dispersing at the speed of 1500rpm to prepare paste; (2) grinding the paste in a sand mill until the fineness is less than or equal to 15 mu m to obtain the resin-free UV white paste.
Application example 1
The resin-free UV white slurry prepared in the embodiment 1-6 is applied to the UV white primer and comprises the following raw materials in percentage by mass: polyester acrylate: 20%, DPGDA: 15% and auxiliary agent: 5% of a filler: 10% of the resin-free UV white paste of examples 1 to 5: 50 percent. The results of the performance tests are shown in Table 1.
TABLE 1 test results of the application of the resin-free UV white pastes of examples 1-6 to the UV white primer
As can be seen from Table 1, the viscosity of the coating films of examples 1 to 6 is significantly reduced, which contributes to leveling of the coating film surface, the adhesion is also improved by one grade, and the thixotropy is also significantly better than that of the commercially available product.
Application example 2
The resin-free UV white paste of the embodiment 1-6 applied to the UV white finish comprises the following raw materials in percentage by mass: polyester acrylate: 28%, DPGDA: 17% and auxiliary agent: 5% resin-free UV white paste of examples 1 to 5: 45 percent. The results of the performance tests are shown in Table 2.
Table 2 test results of the application of the resin-free UV white paste of examples 1-6 to UV white paint
As can be seen from Table 2, the viscosity of examples 1-6 is significantly reduced, which contributes to leveling of the coating surface and also improves the adhesion.
Claims (7)
1. The resin-free UV white paste is characterized by comprising the following raw materials in percentage by mass:
dipropylene glycol diacrylate: 20 to 30 percent of the total weight of the mixture,
polymerization inhibitor: 0.2 to 0.5 percent of,
dispersing agent: 3 to 6 percent of the total weight of the mixture,
titanium dioxide: 65 to 75 percent of the total weight of the mixture,
fumed silica: 0.3 to 0.8 percent.
2. The resin-free UV white paste according to claim 1, wherein the polymerization inhibitor is a substituted phenolic polymerization inhibitor.
3. The resin-free UV white paste according to claim 1, wherein the polymerization inhibitor is one or more of hydroquinone monomethyl ether, p-hydroxyanisole, p-tert-butylcatechol.
4. The resin-free UV white paste according to claim 1, wherein the polymerization inhibitor is p-hydroxyanisole.
5. The resin-free UV white paste according to claim 1, wherein the dispersant is one or more of a lipid copolymer with a pigment-philic acid group, a modified polyurethane and a block copolymer of a modified acrylic acid.
6. The method for preparing the resin-free UV white paste according to any one of claims 1 to 5, comprising the steps of: (1) mixing the dipropylene glycol diacrylate, the polymerization inhibitor, the dispersing agent, the titanium dioxide and the fumed silica according to respective mass fractions, and dispersing at a high speed to prepare paste; (2) and grinding the paste to a specified fineness to obtain the resin-free UV white paste.
7. The method according to claim 6, wherein in the step (1), the high speed dispersion rate is 1500 to 2500 rpm; in the step (2), the fineness is 10-15 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110730706.3A CN113444403A (en) | 2021-06-29 | 2021-06-29 | Resin-free UV white slurry and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110730706.3A CN113444403A (en) | 2021-06-29 | 2021-06-29 | Resin-free UV white slurry and preparation method thereof |
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| CN113444403A true CN113444403A (en) | 2021-09-28 |
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| CN202110730706.3A Pending CN113444403A (en) | 2021-06-29 | 2021-06-29 | Resin-free UV white slurry and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384326A (en) * | 2018-05-10 | 2018-08-10 | 华南农业大学 | A kind of high adhesion force high glaze black UV jetted inks and its preparation method and application |
| CN110669374A (en) * | 2019-09-29 | 2020-01-10 | 济南赢科新材料科技有限公司 | White UV (ultraviolet) nano color paste and preparation method thereof |
-
2021
- 2021-06-29 CN CN202110730706.3A patent/CN113444403A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108384326A (en) * | 2018-05-10 | 2018-08-10 | 华南农业大学 | A kind of high adhesion force high glaze black UV jetted inks and its preparation method and application |
| CN110669374A (en) * | 2019-09-29 | 2020-01-10 | 济南赢科新材料科技有限公司 | White UV (ultraviolet) nano color paste and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 中国石油化工集团公司人事教育部编: "《多种经营企业产品手册》", 中国石化出版社, pages: 255 - 257 * |
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