CN116120816A - Diamond flickering effect powder coating composition and coating thereof - Google Patents

Diamond flickering effect powder coating composition and coating thereof Download PDF

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Publication number
CN116120816A
CN116120816A CN202211661633.8A CN202211661633A CN116120816A CN 116120816 A CN116120816 A CN 116120816A CN 202211661633 A CN202211661633 A CN 202211661633A CN 116120816 A CN116120816 A CN 116120816A
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powder coating
diamond
composition
effect pigment
coating composition
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李雪涛
张�浩
开卫华
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Tiger Surface Technology New Materials Suzhou Co ltd
Tiger New Surface Materials Qingyuan Co ltd
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Tiger Surface Technology New Materials Suzhou Co ltd
Tiger New Surface Materials Qingyuan Co ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D167/00Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D133/00Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D163/00Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/03Powdery paints
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D5/00Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/03Powdery paints
    • C09D5/033Powdery paints characterised by the additives
    • C09D5/035Coloring agents, e.g. pigments
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20Oxides; Hydroxides
    • C08K3/22Oxides; Hydroxides of metals
    • C08K2003/2237Oxides; Hydroxides of metals of titanium
    • C08K2003/2241Titanium dioxide

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Paints Or Removers (AREA)

Abstract

The invention discloses a diamond flickering effect powder coating composition and a coating thereof, comprising a powder coating base powder composition and a glass pearlescent effect pigment which are mixed into a whole, wherein the glass pearlescent effect pigment comprises not less than 70 weight percent of calcium aluminum borosilicate.

Description

Diamond flickering effect powder coating composition and coating thereof
Technical Field
The invention belongs to the field of powder coatings, and particularly relates to a powder coating composition with a diamond flickering effect.
Background
The thermosetting powder coating has the advantages of environmental protection, low energy consumption, convenient construction, no (at least a small amount of) VOC emission and the like, so that the thermosetting powder coating is widely used for replacing paint and water paint to realize the protection and decoration of products in various fields.
In particular, the market always desires decorative coatings that achieve some special effects, such as diamond sparkling effect coatings. In the field of thermosetting powder coatings, there is still no thermosetting powder coating product with a diamond sparkling effect.
Therefore, the applicant hopes to develop a new technical scheme to solve the above technical problems.
Disclosure of Invention
Accordingly, the present invention is directed to a powder coating composition with diamond sparkling effect and a coating thereof.
The technical scheme adopted by the invention is as follows:
a diamond sparkling effect powder coating composition comprising a powder coating base composition and a glass pearlescent effect pigment mixed together, wherein the glass pearlescent effect pigment comprises not less than 70wt% calcium aluminum borosilicate.
Preferably, the glass pearlescent effect pigment comprises 80 to 98 weight percent calcium aluminum borosilicate and 1 to 15 weight percent titanium dioxide.
Preferably, the glass pearlescent effect pigment has a D50 particle size in the range of 15-30 μm.
Preferably, the glass pearlescent effect pigment has an oil absorption of from 50 to 90g/100g and/or a density of from 2 to 4g/cm 3
Preferably, the glass pearlescent effect pigment is present in an amount ranging from 0.5 to 5.0 weight percent of the powder coating base powder composition.
Preferably, the powder coating base composition is transparent or at least translucent.
Preferably, the raw materials of the powder coating base powder composition include a polyester resin, and a curing agent for curing the polyester resin; the weight proportion of the polyester resin in the powder coating base powder composition is preferably not less than 55wt%, and the weight proportion of the curing agent in the polyester resin is preferably in the range of 2-15wt%.
Preferably, the polyester resin has a viscosity at 200℃in the range of 1500 to 2500 Pa.s and/or an acid value of not more than 45mgKOH/g.
Preferably, the glass pearlescent effect pigment is compounded with the powder coating base powder composition by thermal bonding.
Preferably, the diamond flickering effect coating is obtained by spraying and curing the powder coating composition with the diamond flickering effect on a substrate.
Throughout this application, reference is made to ASTM D4287-1994, and the detection device used may be a standard commercial CONE-PLATE VISCOMETER (e.g., ICI CONE-PLATE VISCOMETER (CONE & PLATE), brand CAP 2000 VISCOMER from Brookfield); the reference of the acid value detection standard is ISO 3682-1998; the D50 particle size data involved was obtained by performing particle size distribution testing by laser diffraction (e.g., using a malvern particle size analyzer 2000).
The PCI leveling grade related to the application concretely refers to that the leveling grade corresponding to the coating to be measured is judged by visual comparison between the coating to be measured and a PCI leveling grade comparison board (grade 0-10), and belongs to a leveling grade judging method for traffic in industry
The powder coating composition with diamond flickering effect is obtained by particularly selecting glass pearlescent effect pigment with calcium aluminum borosilicate content not less than 70wt%, and compounding the glass pearlescent effect pigment with the powder coating base powder composition preferably through a thermal bonding process.
Detailed Description
The embodiment of the application provides a diamond flickering effect powder coating composition, which comprises a powder coating base powder composition and a glass pearlescent effect pigment which are mixed into a whole, wherein the glass pearlescent effect pigment comprises not less than 70 weight percent of calcium aluminum borosilicate; preferably, in this embodiment, the glass pearlescent effect pigment is compounded with the powder coating base powder composition by thermal bonding; any known bonding process may be used for the thermal bonding, and the embodiment is not particularly limited.
To further facilitate the achievement of a stable diamond sparkling effect, it is preferred that in this embodiment the glass pearlescent effect pigment comprises 80 to 98wt% borosilicate1-15wt% of titanium dioxide and aluminum calcium; preferably, in this embodiment, the glass pearlescent effect pigment has a D50 particle size in the range of 15 to 30 μm; preferably, in this embodiment, the glass pearlescent effect pigment has an oil absorption of 50 to 90g/100g and/or a density of 2 to 4g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the In particular, in this embodiment, the glass pearlescent effect pigment may be specifically selected from Coloray Pigment RS8153 provided by kangli, zhejiang, or other glass pearlescent effect pigments having the same or similar effects, which are not limited solely by this example.
Preferably, the glass pearlescent effect pigment comprises the powder coating base powder composition in a weight portion ratio ranging from 0.5 to 5.0wt%; more preferably 1 to 5wt%, still more preferably 2 to 4wt%.
To further facilitate obtaining a more pronounced diamond scintillation effect, it is preferred that in this embodiment the powder coating base powder composition is transparent or at least translucent; therefore, in order to make the powder coating base composition at least translucent, it is recommended that no filler be added to the powder coating base composition, or that the filler be added not to exceed 25wt%; it is also recommended not to add a texturing agent to the powder coating base composition.
Preferably, in this embodiment, the powder coating base powder composition includes a thermosetting resin, a curing agent; among them, preferably, in the present embodiment, a known thermosetting resin may be used, and specifically, may be a mixture of one or any of an epoxy resin, a carboxylic acid polyester resin, a hydroxyl polyester resin, an acrylic resin, and a fluorocarbon resin; in the present embodiment, the curing agent may be any known curing agent selected according to the thermosetting resin actually selected, as long as it is ensured that the curing agent can transmit a crosslinking curing reaction with the thermosetting resin.
Preferably, in the present embodiment, the thermosetting resin includes a polyester resin, and a curing agent for curing the polyester resin; wherein preferably the curing agent comprises hydroxyalkylamide (i.e. commonly known as Primid) and/or TGIC (triglycidyl isocyanurate) and/or isocyanate compound, wherein preferably the isocyanate compound according to the present embodiment further comprises blocked isocyanate, latent isocyanate, urea diketone, etc.
Preferably, in the present embodiment, the polyester resin is present in an amount of not less than 55% by weight of the powder coating base powder composition; more preferably 65 to 97wt%, still more preferably 70 to 95wt%, still more preferably 75 to 95wt%; preferably, in the present embodiment, the curing agent is present in an amount ranging from 2 to 15wt%, more preferably from 4 to 12 wt%, still more preferably from 5 to 10wt% based on the weight of the polyester resin. Further preferably, in this embodiment, the polyester resin has a viscosity in the range of 1500 to 2500mpa.s, more preferably 1500 to 2300mpa.s, at 200 ℃; and/or the acid value of the polyester resin is not higher than 45mgKOH/g, more preferably 25 to 45mgKOH/g, still more preferably 30 to 40mgKOH/g.
Preferably, in the practice of the present application, it is also optional to add known adjuvants to the powder coating base powder composition, such as leveling agents, deaerators, antioxidants, dispersants, pigments, fillers, stabilizers, flow agents, waxes and/or other adjuvants, which are all routine technical choices for those skilled in the art. The powder coating base composition of this example can be prepared by known procedures such as mixing raw materials, melt extrusion, and crushing, but other known preparation techniques can be used to obtain the powder coating base composition of this example.
In this embodiment, the raw materials, such as thermosetting resins, curing agents, auxiliary agents, and the like, involved in the powder coating base composition are all commercially available as they are, and the sources of the raw materials are readily available.
Preferably, the embodiment also provides a diamond flickering effect coating layer, which is obtained by spraying and curing the powder coating composition with the diamond flickering effect on a substrate. In this embodiment, the substrate may be a metal substrate or a non-metal substrate; preferably, in the present embodiment, a metal substrate is used as the substrate, and more preferably, an aluminum substrate or an iron substrate is used.
In this embodiment, the thickness of the diamond scintillation effect coating can be specifically selected according to practical needs, and the recommended coating thickness range is 60-120 μm (the test standard is ISO 2360-2017).
To further demonstrate the technical effects of the application, the application specifically conducted the following sets of examples as raw materials for the formulation of powder coating compositions with diamond sparkling effect for specific test performance comparisons:
example 1: a diamond sparkling effect powder coating composition comprising 98.5wt% of a powder coating base powder composition and 1.5wt% of a glass pearlescent effect pigment (which is sold under the name Coloray Pigment RS8153 by Zhejiang Kai) wherein the glass pearlescent effect pigment is integrally compounded with the powder coating base powder composition by a known thermal bonding process; preferably, in the bonding process of this embodiment 1, the heat bonding time is about 2 minutes and the heat bonding temperature is about 55 ℃.
In this example 1, the powder coating base powder composition was formulated as follows:
91.5% by weight of a polyester resin, with the trade name Allnex
Figure BDA0004013347020000041
4642-3 having a viscosity at 200 ℃ in the range of 1500-2300mpa.s and an acid value in the range of 32-38mgKOH/g;
7wt% TGIC, brand Huang Shanhua Hui HT-702;
1wt% of leveling agent, and the mark is RESIFLOW PV-67C of ESTRON;
0.5% by weight of degassing agent, benzoin (conventional commercial product) being used in particular.
The powder coating base powder composition is prepared by the procedures of weighing, premixing, melt extrusion, grinding, cyclone separation and the like of the raw materials in the formula.
Example 2: the remaining technical solution of this embodiment 2 is the same as that of embodiment 1, except that in this embodiment 2, the powder coating base powder composition includes:
91.5wt% of a polyester resin having a viscosity in the range of 2500 to 3500mpa.s at 200 ℃ and an acid value in the range of 32 to 37mgKOH/g, and having a GH-3331 supplied from Zhejiang Guanghua;
7wt% TGIC, brand Huang Shanhua Hui HT-702;
1wt% of leveling agent, and the mark is RESIFLOW PV-67C of ESTRON;
0.5% by weight of degassing agent, benzoin (conventional commercial product) being used in particular.
Example 3: the remaining technical solution of this embodiment 3 is the same as that of embodiment 1, except that in this embodiment 3, the powder coating base powder composition includes:
91.5% by weight of a polyester resin, with the trade name Allnex
Figure BDA0004013347020000042
4642-3 having a viscosity at 200 ℃ in the range of 1500-2300mpa.s and an acid value in the range of 32-38mgKOH/g; />
7wt% TGIC, brand Huang Shanhua Hui HT-702;
1wt% of leveling agent, namely Resifflow PL-200 with the trademark of ESTRON;
0.5% by weight of degassing agent, benzoin (conventional commercial product) being used in particular.
Example 4: the remaining technical solution of this embodiment 4 is the same as that of embodiment 1, except that in this embodiment 4, the powder coating base powder composition includes:
85wt% of a polyester resin, FL-3011 polyester resin with the trade name of fumigating maple, the viscosity of which ranges from 2800 to 4100 Pa.s at 200 ℃, and the acid value of which ranges from 30 to 36mgKOH/g;
7wt% TGIC, brand Huang Shanhua Hui HT-702;
1wt% of leveling agent, namely Resifflow PL-200 with the trademark of ESTRON;
0.5% by weight of a degassing agent, in particular benzoin (conventional commercial product);
6.5wt% TiO 2 And (3) filling.
Example 5: the remaining technical solution of this embodiment 5 is the same as that of embodiment 1, except that in this embodiment 5, the powder coating base powder composition includes:
75% by weight of a polyester resin, sold under the name Allnex
Figure BDA0004013347020000051
4642-3 having a viscosity at 200 ℃ in the range of 1500-2300mpa.s and an acid value in the range of 32-38mgKOH/g;
7wt% TGIC, brand Huang Shanhua Hui HT-702;
1wt% of leveling agent, namely Resifflow PL-200 with the trademark of ESTRON;
0.5% by weight of a degassing agent, in particular benzoin (conventional commercial product);
10wt% BaSO 4 A filler;
6.5wt% TiO 2 And (3) filling.
Example 6: the remaining technical solution of this embodiment 6 is the same as embodiment 1, except that in this embodiment 6, the powder coating base powder composition includes:
70% by weight of a polyester resin, with the trade name Allnex
Figure BDA0004013347020000052
4642-3 having a viscosity at 200 ℃ in the range of 1500-2300mpa.s and an acid value in the range of 32-38mgKOH/g;
5wt% TGIC, brand Huang Shanhua Hui HT-702;
1wt% of leveling agent, namely Resifflow PL-200 with the trademark of ESTRON;
0.5% by weight of a degassing agent, in particular benzoin (conventional commercial product);
17wt% BaSO 4 A filler;
6.5wt% TiO 2 And (3) filling.
Example 7: the remaining technical solutions of this example 7 are the same as those of example 1, except that in this example 7, the powder coating base powder composition includes:
49wt% epoxy resin (BE-502 epoxy resin supplied by vinca CCP);
49wt% of a polyester resin (Uralac P865 under the name DSM);
1wt% of a leveling agent;
0.5wt% of a degassing agent;
0.5wt% of curing accelerator, and specifically imidazole curing accelerators which are publicly sold in the market are selected.
Example 8: the remaining technical solution of this embodiment 8 is the same as embodiment 1, except that in this embodiment 8, the powder coating base powder composition includes:
85% by weight of an acrylic resin (type A254 GMA acrylic resin, dielsen);
13wt% of a DDDA curative (from Ningbojeer Cheng Huagong), wherein DDDA is an abbreviation for English "Dodecanedioic acid", chinese meaning dodecanedioic acid;
1wt% of a leveling agent;
1% by weight of degassing agent.
Example 9: the remaining technical solution of this example 9 is the same as that of example 1, except that in this example 9, 98wt% of the powder coating base powder composition and 2wt% of the glass pearlescent effect pigment are included.
Example 10: the remaining technical solution of this example 10 is the same as that of example 1, except that in this example 10, 96wt% of the powder coating base powder composition and 4wt% of the glass pearlescent effect pigment are included.
Example 11: the remaining technical solution of this example 11 is the same as that of example 1, except that in this example 11, 95wt% of the powder coating base powder composition and 5wt% of the glass pearlescent effect pigment are included.
Example 12: the remaining technical solution of this example 12 is the same as that of example 1, except that in this example 12, 99wt% of the powder coating base powder composition and 1wt% of the glass pearlescent effect pigment are included.
Example 13: the remaining technical solution of this example 11 is the same as that of example 1, except that in this example 13, 99.5wt% of the powder coating base composition and 0.5wt% of the glass pearlescent effect pigment are included.
Example 14: the remaining technical solution of this example 14 is the same as that of example 1, except that in this example 14, 99.8wt% of the powder coating base composition and 0.2wt% of the glass pearlescent effect pigment are included.
Example 15: the rest of the technical solutions in this embodiment 15 are identical to those in embodiment 1, and only differ in that: in this example 15, 98.5wt% of the powder coating base powder composition and 1.5wt% of the glass pearlescent effect pigment were mixed together by a dry blending process.
Comparative example 1: the remaining technical solutions of this comparative example 1 are identical to example 1, except that: in this comparative example 1, the powder coating base composition was in a non-transparent or translucent form, comprising:
60wt% of a polyester resin;
7wt% TGIC;
1wt% of a leveling agent;
0.5wt% of a degassing agent;
25wt% BaSO 4 A filler;
6.5wt% TiO 2 And (3) filling.
The powder coating base powder composition of this comparative example 1.
Comparative example 2: the remaining technical solutions of this comparative example 2 are identical to example 1, except that: in this comparative example 2, the glass pearlescent effect pigment in example 1 was replaced with a color-changing pearlescent powder (KSL 61512M, trade name of Zhejiang Kagay).
Comparative example 3: the remaining technical solutions of this comparative example 3 are identical to example 1, only with the difference that: in this comparative example 3, the glass pearlescent effect pigment in example 1 was replaced with a coated aluminum effect pigment (powdal@8500 hc, brand name SCHENK).
Comparative example 4: the remaining technical solutions of this comparative example 4 are identical to example 1, only with the difference that: in this comparative example 4, the glass pearlescent effect pigment in example 1 was replaced with another pearlescent pigment, which is identified as Silver White 91005WR in the trade name of Zhejiang Kai.
Comparative example 5: the remaining technical solutions of this comparative example 5 are identical to example 1, only with the difference that: in this comparative example 5, the glass pearlescent effect pigment of example 1 is replaced by a mica effect pigment, which is designated merck
Figure BDA0004013347020000072
9103Sterling Silver WR。/>
In order to verify the scintillation effect of diamond obtained in the present application, the powder coating compositions were prepared in each of examples 1 to 15 and comparative examples 1 to 5, and then each powder coating composition was sprayed and cured (the curing conditions were uniformly selected to be 200 ℃ C. @15 min) on the same type of aluminum substrate to obtain cured coatings, respectively, each of which had a film thickness of 60 to 100 μm. The present application conducted a performance test comparison of each of the above cured coatings as shown in table 1 below:
TABLE 1
Figure BDA0004013347020000071
/>
Figure BDA0004013347020000081
It should be noted that the performance test of the present example or comparative example was performed according to the test criteria or conditions described in table 2 below.
Table 2 test items and test criteria or conditions
Figure BDA0004013347020000091
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that, although the present disclosure describes embodiments, not every embodiment contains only one independent technical solution, and the description is provided for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the examples and the technical features independent of each other may also be combined appropriately to form other embodiments that can be understood by those skilled in the art.

Claims (10)

1. A diamond sparkling effect powder coating composition comprising a powder coating base composition and a glass pearlescent effect pigment, wherein the glass pearlescent effect pigment comprises not less than 70wt% calcium aluminum borosilicate.
2. The diamond sparkling effect powder coating composition of claim 1, wherein the glass pearlescent effect pigment comprises from 80 to 98wt% calcium aluminum borosilicate and from 1 to 15wt% titanium dioxide.
3. The diamond sparkling effect powder coating composition of claim 1, wherein the glass pearlescent effect pigment has a D50 particle size in the range of 15 to 30 μm.
4. The diamond sparkling effect powder coating composition of claim 1, wherein the glass pearlescent effect pigment has an oil absorption of 50 to 90g/100g and/or the glass pearlescent effect pigment has a density of 2 to 4g/cm 3
5. The diamond sparkling effect powder coating composition of claim 1, wherein the glass pearlescent effect pigment comprises in the range of 0.5 to 5.0wt% of the powder coating base powder composition.
6. The diamond sparkling effect powder coating composition of claim 1, wherein the powder coating base composition is transparent or at least translucent.
7. The diamond sparkling effect powder coating composition of claim 1 or 6, wherein the starting materials of the powder coating base composition comprise a polyester resin and a curing agent for curing the polyester resin; the weight proportion of the polyester resin in the powder coating base powder composition is preferably not less than 55wt%, and the weight proportion of the curing agent in the polyester resin is preferably in the range of 2-15wt%.
8. The diamond sparkling effect powder coating composition of claim 7, wherein the polyester resin has a viscosity in the range of 1500 to 2500mpa.s at 200 ℃ and/or an acid number of not more than 45mgKOH/g.
9. The diamond sparkling effect powder coating composition of claim 1, wherein the glass pearlescent effect pigment is integrally compounded with the powder coating base composition by thermal bonding.
10. A diamond sparkling effect coating obtained by spraying and curing a substrate with a powder coating composition according to any of claims 1 to 9.
CN202211661633.8A 2022-12-23 2022-12-23 Diamond flickering effect powder coating composition and coating thereof Pending CN116120816A (en)

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CN103937188A (en) * 2014-04-21 2014-07-23 上海朗亿功能材料有限公司 Polycarbonate-based resin composition with special flickering effect and preparation method thereof
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CN117070136B (en) * 2023-10-13 2023-12-29 佛山市南海嘉多彩粉末涂料有限公司 Metal-effect-imitated flash powder coating composition and preparation method thereof

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