PU matte toning base material as well as preparation method and application thereof
By using PU matte toning base material in solid paint, the floating color floral problem is solved, and the color consistency and stability during the coating process is achieved.
Patent Information
- Application Number
- CN202311027824.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-08-16
- Publication Date
- 2025-02-21
AI Technical Summary
The prior art is difficult to effectively solve the problem of floating color and flowering in solid paint, especially after on-site color adjustment, which cannot effectively interfere with floating color and flowering within 3 hours, resulting in inconsistent color.
Using a PU matte color-to-color base material, including matte white surface base material, inorganic pigment color paste, organic pigment color paste and additives, the pigment particle size matches and avoids floating colors by finely mixing the pigment components and additive ratios. Flowering.
It achieves color consistency during the coating process, prevents floating color and floral phenomena, and ensures that the paint remains stable within 3 hours.
Smart Images
Figure CN119490768A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of coating production, and in particular to a PU matte color-adjusting base material and a preparation method and application thereof. Background Art
[0002] At present, the methods for preventing floating color and floating by adjusting the color of PU matte solid color base materials mainly include the following: First, select a better color dispersant and improve the stability of the color paste by the deflocculation ability of the dispersant. Second, adjust the floating color and floating of the color material by optimizing the volatilization gradient of the thinner and adjusting the wetting of the color paste. Third, adjust by adding a thickener. However, the existing technical solutions cannot perfectly solve the floating color and floating problem of solid color paint. The use of a single technical means can achieve local regulation of the floating color and floating problem, but the use of the above three technical means together will cause conflicts and cause the collapse of the entire system. Therefore, the existing technology cannot solve the floating color and floating phenomenon of solid color paint after on-site color adjustment, cannot effectively intervene in the floating color and floating phenomenon within 3 hours of painting time, and cannot ensure the consistency of color painting, resulting in the same batch of solid color base materials. The color is also inconsistent when applied at different times.
[0003] Floating color and floating are common problems in the production and use of coatings. Pigments are separated in the horizontal direction, resulting in uneven color of the coating and floating. Floating color is a change in the vertical direction of the pigment. One or more pigments separate during the film formation and drying process of the coating. One pigment floats to the surface, while the other pigment remains in place or sinks to the bottom. The pigment and filler particles are brought to the surface of the coating under the volatilization of the solvent. Due to the large difference in particle size between the particles, the miscibility between the pigment and filler becomes very poor, resulting in floating color. Summary of the invention
[0004] The purpose of the present invention is to provide a PU matte color-adjusting base material and a preparation method and application thereof, so as to solve the problems of floating color and floating.
[0005] The technical solution adopted by the present invention to solve the technical problem is as follows:
[0006] The invention discloses a PU matte color-adjusting base material, comprising: a matte white base material, an inorganic pigment paste, an organic pigment paste and an auxiliary agent; the mass ratio of the matte white base material, the inorganic pigment paste, the organic pigment paste and the auxiliary agent is 100: (10-15): (10-15): (0.6-0.7).
[0007] As a preferred embodiment, the auxiliary agent includes: FC-37, FC-73 and FC-V67, and the mass ratio of FC-37, FC-73 and FC-V67 is: 0.3:(0.1-0.2):0.2.
[0008] As a preferred embodiment, the matte white flour base material is composed of the following components in weight percentage:
[0009] Alkyd resin: 46%; dispersant: 0.5%; Deqian 201P: 1%; Degussa 972: 0.2%; n-butyl acetate: 5%; titanium dioxide: 33%; paint powder: 5%; FC-8000: 0.2%; leveling agent: 0.2%; defoamer: 0.2%; matte powder: 4%; solvent: 5%.
[0010] As a preferred embodiment, the dispersant is BYK110; the leveling agent is FC-300; the defoaming agent is FC-980; and the solvent is xylene.
[0011] As a preferred embodiment, the preparation method of the matte white flour base material is as follows:
[0012] First, add alkyd resin, BYK110, Deqian 201P, Degussa 972 and n-butyl acetate for pre-dispersion for 10 minutes, then add titanium dioxide and paint powder for high-speed dispersion, and then grind to a fineness of less than 25um, then add FC-8000, FC-300, FC-980 and matte powder in sequence, disperse the fineness to 25um, and finally add xylene to make up the weight to obtain a matte white base material.
[0013] As a preferred embodiment, the inorganic pigment paste is selected from one or more of iron oxide red, iron oxide black, titanium white, zinc chrome yellow, zinc white, iron blue, ultramarine, iron yellow, lithopone, carbon black, iron oxide yellow, iron oxide orange, iron oxide green, and iron oxide brown.
[0014] As a preferred embodiment, the organic pigment color paste is selected from at least two color pastes of 254 red paste, 83# yellow paste, and phthalocyanine blue paste.
[0015] As a preferred embodiment, the fineness of the inorganic pigment paste and the organic pigment paste is 5 um.
[0016] A method for preparing a PU matte color-tuning base material of the present invention comprises the following steps:
[0017] Inorganic pigment paste and organic pigment paste are added to the matte white base material, and then auxiliary agents are added in sequence. After each auxiliary agent is dispersed, another auxiliary agent is added and dispersed to obtain a PU matte color base material. The dispersion condition is: 1000r / 10min.
[0018] The invention discloses an application of a PU matte color-adjusting base material in preparing a coating with the functions of preventing color floating and floating.
[0019] The beneficial effects of the present invention are:
[0020] The present invention achieves the purpose of color consistency of solid color paint coating by focusing on solving the problem of floating color (control of the falling speed of different pigments) and floating (control of the lipophilicity and hydrophilicity of different pigments on the horizontal plane) through in-depth understanding of the floating color and floating mechanism. The PU matte color base material of the present invention is mainly composed of matte white base material, inorganic pigment paste, organic pigment paste and additives. The floating color and floating phenomenon is avoided by carefully selecting the matte white base material, inorganic pigment paste, organic pigment paste and additives, and matching the particle sizes of the selected pigments and fillers. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 The following are the comparison photos of the base material before and after adding the additive. In the figure, a is without adding the additive, and b is after adding the additive.
[0022] Figure 2 The following are the comparison photos of the base material before and after adding the additive. In the figure, a is without adding the additive, and b is after adding the additive.
[0023] Figure 3 The following are the comparison photos of the base material before and after adding the additive. In the figure, a is without adding the additive, and b is after adding the additive. DETAILED DESCRIPTION
[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0025] The invention discloses a PU matte color-adjusting base material, comprising: a matte white base material, an inorganic pigment paste, an organic pigment paste and an auxiliary agent; the mass ratio of the matte white base material, the inorganic pigment paste, the organic pigment paste and the auxiliary agent is 100: (10-15): (10-15): (0.6-0.7).
[0026] As a preferred embodiment, the auxiliary agent includes: FC-37, FC-73 and FC-V67, and the mass ratio of FC-37, FC-73 and FC-V67 is: 0.3:(0.1-0.2):0.2.
[0027] As a preferred embodiment, the matte white flour base material is composed of the following components in weight percentage:
[0028] Alkyd resin: 46%; dispersant: 0.5%; Deqian 201P: 1%; Degussa 972: 0.2%; n-butyl acetate: 5%; titanium dioxide: 33%; paint powder: 5%; FC-8000: 0.2%; leveling agent: 0.2%; defoamer: 0.2%; matte powder: 4%; solvent: 5%.
[0029] As a preferred embodiment, the dispersant is BYK110; the leveling agent is FC-300; the defoaming agent is FC-980; and the solvent is xylene.
[0030] As a preferred embodiment, the preparation method of the matte white flour base material is as follows:
[0031] First, add alkyd resin, BYK110, Deqian 201P, Degussa 972 and n-butyl acetate for pre-dispersion for 10 minutes, then add titanium dioxide and paint powder for high-speed dispersion, and then grind to a fineness of less than 25um, then add FC-8000, FC-300, FC-980 and matte powder in sequence, disperse the fineness to 25um, and finally add xylene to make up the weight to obtain a matte white base material.
[0032] As a preferred embodiment, the inorganic pigment paste is selected from one or more of iron oxide red, iron oxide black, titanium white, zinc chrome yellow, zinc white, iron blue, ultramarine, iron yellow, lithopone, carbon black, iron oxide yellow, iron oxide orange, iron oxide green, and iron oxide brown.
[0033] As a preferred embodiment, the organic pigment color paste is selected from at least two color pastes of 254 red paste, 83# yellow paste, and phthalocyanine blue paste.
[0034] As a preferred embodiment, the fineness of the inorganic pigment paste and the organic pigment paste is 5 um.
[0035] A method for preparing a PU matte color-tuning base material of the present invention comprises the following steps:
[0036] Inorganic pigment paste and organic pigment paste are added to the matte white base material, and then auxiliary agents are added in sequence. After each auxiliary agent is dispersed, another auxiliary agent is added and dispersed to obtain a PU matte color base material. The dispersion condition is: 1000r / 10min.
[0037] It should be noted that the three additives (FC-37, FC-73 and FC-V67) cannot be added at the same time. Each additive needs to be dispersed before adding another additive.
[0038] In addition, it has been verified through experiments that when no additives are added, Figure 1 Middle a, Figure 2 A and Figure 3As shown in a, the color floats quickly after dilution, and the planed surface is clearly separated. Figure 1 Middle b, Figure 2 Medium b and Figure 3 As shown in b, the paint can remain color-free for 3 hours after being thinned, and there is no color separation on the planed surface after drying.
[0039] When FC-37 is added alone, white floating can be solved but accompanied by black floating; when FC-73 is added alone, black floating can be solved but accompanied by white floating; when the additives FC-37, FC-73 and FC-V67 are added in sequence, and the mass ratio of FC-37, FC-73 and FC-V67 is 0.3:0.1 to 0.2:0.2, the floating color and floating problems can be best solved.
[0040] The present invention discloses a PU matte coloring base material and a preparation method and application thereof. Those skilled in the art can refer to the content of this article and appropriately improve the process parameters to achieve the same. It should be particularly noted that all similar substitutions and modifications are obvious to those skilled in the art and are considered to be included in the present invention. The product of the present invention has been described through a preferred embodiment, and relevant personnel can obviously modify or appropriately change and combine the product described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention.
Claims
1. A PU matte color-tuning base material, characterized in that: include: Matt white flour base material, inorganic pigment paste, organic pigment paste and additives; the mass ratio of the matte white flour base material, inorganic pigment paste, organic pigment paste and additives is: 100: (10-15): (10-15): (0.6-0.7).
2. A PU matte color-tuning base material according to claim 1, characterized in that: The auxiliary agents include: FC-37, FC-73 and FC-V67, and the mass ratio of FC-37, FC-73 and FC-V67 is: 0.3:(0.1-0.2):0.
2.
3. A PU matte color-tuning base material according to claim 1, characterized in that: The matte white flour base material is composed of the following components in weight percentage: Alkyd resin: 46%; dispersant: 0.5%; Deqian 201P: 1%; Degussa 972: 0.2%; n-butyl acetate: 5%; titanium dioxide: 33%; paint powder: 5%; FC-8000: 0.2%; leveling agent: 0.2%; defoamer: 0.2%; matte powder: 4%; solvent: 5%.
4. A PU matte color-tuning base material according to claim 3, characterized in that: The dispersant is BYK110; the leveling agent is FC-300; the defoaming agent is FC-980; and the solvent is xylene.
5. A PU matte color-tuning base material according to claim 4, characterized in that: The preparation method of the matte white flour base material is as follows: First, add alkyd resin, BYK110, Deqian 201P, Degussa 972 and n-butyl acetate for pre-dispersion for 10 minutes, then add titanium dioxide and paint powder for high-speed dispersion, and then grind to a fineness of less than 25um, then add FC-8000, FC-300, FC-980 and matte powder in sequence, disperse the fineness to 25um, and finally add xylene to make up the weight to obtain a matte white base material.
6. A PU matte color-tuning base material according to claim 1, characterized in that: The inorganic pigment paste is selected from one or more of iron oxide red, iron oxide black, titanium white, zinc chrome yellow, zinc white, iron blue, ultramarine, iron yellow, lithopone, carbon black, iron oxide yellow, iron oxide orange, iron oxide green and iron oxide brown.
7. The PU matte color-tuning base material according to claim 1, characterized in that: The organic pigment color paste is selected from at least two of 254 red paste, 83# yellow paste, and phthalocyanine blue paste.
8. The PU matte color-tuning base material according to claim 1, characterized in that: The fineness of inorganic pigment paste and organic pigment paste is 5um.
9. A method for preparing a PU matte color-tuning base material according to any one of claims 1 to 8, characterized in that: The following steps are involved: Inorganic pigment paste and organic pigment paste are added to the matte white base material, and then auxiliary agents are added in sequence. After each auxiliary agent is dispersed, another auxiliary agent is added and dispersed to obtain a PU matte color base material. The dispersion condition is: 1000r / 10min.
10. Use of a PU matte color-tuning base material as claimed in any one of claims 1 to 8 in the preparation of a coating having anti-floating and anti-floating effects.