CN112625593A - Organosilicon high-temperature-resistant powder coating and preparation process thereof - Google Patents
Organosilicon high-temperature-resistant powder coating and preparation process thereof Download PDFInfo
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- CN112625593A CN112625593A CN202011404866.0A CN202011404866A CN112625593A CN 112625593 A CN112625593 A CN 112625593A CN 202011404866 A CN202011404866 A CN 202011404866A CN 112625593 A CN112625593 A CN 112625593A
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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
- C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
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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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/03—Powdery paints
- C09D5/033—Powdery paints characterised by the additives
- C09D5/035—Coloring agents, e.g. pigments
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2265—Oxides; Hydroxides of metals of iron
- C08K2003/2275—Ferroso-ferric oxide (Fe3O4)
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Abstract
An organosilicon high-temperature resistant powder coating and a preparation process thereof, wherein the coating comprises the following raw materials in parts by mass: 45-65 parts of organic silicon resin, 40-50 parts of polyester resin, 45-60 parts of epoxy resin, 3-8 parts of curing agent, 10-15 parts of high-temperature resistant pigment, 30-33 parts of filler and 3.9-10.4 parts of auxiliary agent; the preparation process comprises the following steps: 1) putting the raw materials into a mixing cylinder according to the corresponding mass parts of the raw materials according to the formula for premixing; 2) melting, mixing, uniformly dispersing and extruding the premixed raw materials by using a double-screw extruder, and then tabletting and crushing; 3) and sieving the finely crushed material through a 150-180-mesh standard sieve to obtain the powder coating. The paint film coated by the powder coating has the advantages of high temperature resistance, corrosion resistance, good wear resistance, good weather resistance, low curing temperature, short curing time, good leveling property of the paint film, strong adhesive force, capability of purifying air and capability of being used on household appliances such as induction cookers, microwave ovens, radiators and the like.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to an organic silicon high-temperature-resistant powder coating and a preparation process thereof.
Background
The powder coating is one of mainstream products in the field of current coatings, and compared with the traditional solvent-based coating, the powder coating does not contain VOC (volatile organic compound), so that the environmental pollution can be reduced, and the powder coating is more environment-friendly; the process is simple, the coating is firm and durable, and the powder can be recycled; and the advantages of easy transportation, long retention period and the like. The conventional powder coating mainly comprises a film-forming substance, a curing agent, a leveling agent, a matrix, a pigment and the like.
The currently marketed powder coatings are probably: (1) thermosetting powder coatings include epoxy powder coatings, polyester powder coatings, acrylate powder coatings, and the like. (2) Thermoplastic powder coatings include polyvinyl chloride powder coatings, polyethylene powder coatings, nylon powder coatings, fluororesin powder coatings, latex powder coatings, and the like. Powder coatings of the above kind constitute a relatively mature powder coating system. Because the resin adopted by the thermosetting powder coating is a prepolymer with lower polymerization degree and lower molecular weight, the leveling property of the coating is better, the coating has better decoration, and the prepolymer with low molecular weight can form a reticular cross-linked macromolecule after being cured, so the coating has better corrosion resistance and mechanical property. Thermosetting powder coatings have developed particularly rapidly.
However, although powder coatings have the above advantages, they also have significant disadvantages. Its main short board lies in: generally, a powder coating needs to be physically mixed with a low-temperature powder coating and a high-temperature powder coating, however, the compatibility of the mixed coating is difficult to achieve an ideal state, so that a phase separation phenomenon is easily caused to be obvious, and a coating film forming effect is influenced; in addition, the compatibility is not ideal, so that the related performance of the mixed powder coating is influenced by non-negligible: one of the more significant negative effects is: the powder coating obtained by mixing the low-temperature powder coating and the high-temperature powder coating is difficult to have the effects of high temperature resistance (higher than 480 ℃) and excellent adhesive force (reaching the adhesive force level 1) in the application process. The above problems make it limited in further applications.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an organosilicon high-temperature-resistant powder coating which has the characteristics of good film-forming property, high temperature resistance and high adhesive force and a preparation process thereof.
The technical scheme adopted by the invention for solving the technical problems is as follows: an organosilicon high-temperature-resistant powder coating comprises the following raw materials in parts by mass: 45-65 parts of organic silicon resin, 40-50 parts of polyester resin, 45-60 parts of epoxy resin, 3-8 parts of curing agent, 10-15 parts of high-temperature resistant pigment, 30-33 parts of filler and 3.9-10.4 parts of auxiliary agent.
Further, the organic silicon resin is phenyl polysilicon resin.
Furthermore, the epoxy value of the epoxy resin is 0.12-0.125/100g, and the polyester resin is carboxyl-terminated polyester resin with the acid value of 68-72 mgKOH/g.
Further, the high-temperature resistant pigment is one or more of iron oxide black, cobalt blue, chromium iron black and titanium nickel yellow.
Further, the filler is one or more of barium carbonate, titanium dioxide, talcum powder, mica powder and aluminum powder.
Furthermore, the auxiliary agent comprises, by mass, 3-8 parts of an antioxidant, 0.2-1 part of an accelerator, 0.2-0.5 part of benzoin, 0.3-0.5 part of a leveling agent and 0.2-0.4 part of a brightening agent.
A preparation process of an organosilicon high-temperature-resistant powder coating comprises the following steps: 1) Putting the raw materials into a mixing cylinder according to the corresponding mass parts of the raw materials according to the formula for premixing; 2) Melting, mixing, uniformly dispersing and extruding the premixed raw materials by using a double-screw extruder, and then tabletting and crushing; 3) And sieving the finely crushed material through a 150-180-mesh standard sieve to obtain the powder coating.
Further, in the step 1), the mixing time is 3-5 minutes, the rotating speed is 500r/min, and the working temperature is 20-30 ℃.
Further, in the step 2), the temperature of the extruder is controlled at 110 ℃ and the screw frequency is controlled at 30-50 Hz.
Further, in the step 2), the crushed materials are subjected to graded crushing by using an ACM (activated carbon) mill, wherein the frequency of the main mill is 25-35Hz, and the frequency of the auxiliary mill is 25-35 Hz.
The invention has the beneficial effects that:
1. the organic silicon resin, the polyester resin and the epoxy resin mixed resin are used as film forming substances, the epoxy resin has excellent corrosion resistance, chemical stability and bonding performance, the polyester resin has high strength and good wear resistance, the organic silicon resin has thermal oxidation stability, good insulating performance and outstanding weather resistance, and also has the characteristics of water resistance, salt fog resistance, mould resistance and the like, the combination of the resins combines the advantages of the resins to make up the defects of the resins, and the corrosion resistance, wear resistance, high temperature resistance, weather resistance and the like of a paint film are improved to obtain the powder paint with excellent performances;
2. the paint film coated by the powder coating has the advantages of high temperature resistance, corrosion resistance, good wear resistance, good weather resistance, low curing temperature, short curing time, good leveling property of the paint film, strong adhesive force, capability of purifying air and capability of being used on household appliances such as induction cookers, microwave ovens, radiators and the like.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention:
example 1: an organosilicon high-temperature resistant powder coating and a preparation process thereof, wherein the coating comprises the following raw materials in parts by mass: 45 parts of organic silicon resin, 50 parts of polyester resin, 45 parts of epoxy resin, 5 parts of curing agent, 10 parts of high-temperature resistant pigment, 30 parts of filler and 5.4 parts of auxiliary agent;
the organic silicon resin is phenyl poly-silicon resin; the epoxy value of the epoxy resin is 0.12-0.125/100g, and the polyester resin is carboxyl-terminated polyester resin with the acid value of 68-72 mgKOH/g; the high-temperature resistant pigment is one or more of iron oxide black, cobalt blue, ferrochrome black and titanium-nickel yellow; the filler is one or more of barium carbonate, titanium dioxide, talcum powder, mica powder and aluminum powder; the auxiliary agent comprises 3 parts of antioxidant, 0.5 part of accelerant, 0.5 part of benzoin, 0.3 part of flatting agent and 0.2 part of brightening agent by mass.
A preparation process of an organosilicon high-temperature-resistant powder coating comprises the following steps: 1) Putting the raw materials into a mixing cylinder according to the corresponding mass parts according to the formula for premixing, wherein the mixing time is 3-5 minutes, the rotating speed is 500r/min, and the working temperature is 20-30 ℃; 2) Melting, mixing, uniformly dispersing and extruding the pre-mixed raw materials by using a double-screw extruder, controlling the temperature of the extruder at 110 ℃ and the screw frequency at 30-50Hz, then tabletting and crushing, and carrying out graded crushing on the crushed materials by using an ACM (Acetomium) mill, wherein the main milling frequency is 25-35Hz, and the auxiliary milling frequency is 25-35 Hz; 3) And sieving the finely crushed material through a 150-180-mesh standard sieve to obtain the powder coating.
Example 2: an organosilicon high-temperature resistant powder coating and a preparation process thereof, wherein the coating comprises the following raw materials in parts by mass: 65 parts of organic silicon resin, 50 parts of polyester resin, 49 parts of epoxy resin, 5 parts of curing agent, 15 parts of high-temperature resistant pigment, 33 parts of filler and 8.5 parts of auxiliary agent;
the organic silicon resin is phenyl poly-silicon resin; the epoxy value of the epoxy resin is 0.12-0.125/100g, and the polyester resin is carboxyl-terminated polyester resin with the acid value of 68-72 mgKOH/g; the high-temperature resistant pigment is one or more of iron oxide black, cobalt blue, ferrochrome black and titanium-nickel yellow; the filler is one or more of barium carbonate, titanium dioxide, talcum powder, mica powder and aluminum powder; the auxiliary agent comprises 8 parts of antioxidant, 1 part of accelerant, 0.2 part of benzoin, 0.5 part of flatting agent and 0.4 part of brightener by mass.
A preparation process of an organosilicon high-temperature-resistant powder coating comprises the following steps: 1) Putting the raw materials into a mixing cylinder according to the corresponding mass parts according to the formula for premixing, wherein the mixing time is 3-5 minutes, the rotating speed is 500r/min, and the working temperature is 20-30 ℃; 2) Melting, mixing, uniformly dispersing and extruding the pre-mixed raw materials by using a double-screw extruder, controlling the temperature of the extruder at 110 ℃ and the screw frequency at 30-50Hz, then tabletting and crushing, and carrying out graded crushing on the crushed materials by using an ACM (Acetomium) mill, wherein the main milling frequency is 25-35Hz, and the auxiliary milling frequency is 25-35 Hz; 3) And sieving the finely crushed material through a 150-180-mesh standard sieve to obtain the powder coating.
Example 3: an organosilicon high-temperature resistant powder coating and a preparation process thereof, wherein the coating comprises the following raw materials in parts by mass: 55 parts of organic silicon resin, 30 parts of polyester resin, 50 parts of epoxy resin, 6 parts of curing agent, 12 parts of high-temperature resistant pigment, 32 parts of filler and 9.5 parts of auxiliary agent;
the organic silicon resin is phenyl poly-silicon resin; the epoxy value of the epoxy resin is 0.12-0.125/100g, and the polyester resin is carboxyl-terminated polyester resin with the acid value of 68-72 mgKOH/g; the high-temperature resistant pigment is one or more of iron oxide black, cobalt blue, ferrochrome black and titanium-nickel yellow; the filler is one or more of barium carbonate, titanium dioxide, talcum powder, mica powder and aluminum powder; the auxiliary agent comprises, by mass, 5 parts of an antioxidant, 0.2 part of an accelerator, 0.4 part of benzoin, 0.4 part of a leveling agent and 0.3 part of a brightening agent.
A preparation process of an organosilicon high-temperature-resistant powder coating comprises the following steps: 1) Putting the raw materials into a mixing cylinder according to the corresponding mass parts according to the formula for premixing, wherein the mixing time is 3-5 minutes, the rotating speed is 500r/min, and the working temperature is 20-30 ℃; 2) Melting, mixing, uniformly dispersing and extruding the pre-mixed raw materials by using a double-screw extruder, controlling the temperature of the extruder at 110 ℃ and the screw frequency at 30-50Hz, then tabletting and crushing, and carrying out graded crushing on the crushed materials by using an ACM (Acetomium) mill, wherein the main milling frequency is 25-35Hz, and the auxiliary milling frequency is 25-35 Hz; 3) And sieving the finely crushed material through a 150-180-mesh standard sieve to obtain the powder coating.
Those not described in detail in the specification are well within the skill of the art.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as being within the protection scope of the present invention.
Claims (10)
1. The organic silicon high-temperature-resistant powder coating is characterized by comprising the following raw materials in parts by mass: 45-65 parts of organic silicon resin, 40-50 parts of polyester resin, 45-60 parts of epoxy resin, 3-8 parts of curing agent, 10-15 parts of high-temperature resistant pigment, 30-33 parts of filler and 3.9-10.4 parts of auxiliary agent.
2. The silicone high temperature resistant powder coating of claim 1, wherein the silicone resin is a phenyl silicone resin.
3. The silicone high-temperature-resistant powder coating as claimed in claim 2, wherein the epoxy value of the epoxy resin is 0.12-0.125/100g, and the polyester resin is a carboxyl-terminated polyester resin having an acid value of 68-72 mgKOH/g.
4. The organosilicon high-temperature-resistant powder coating as claimed in claim 3, wherein the high-temperature-resistant pigment is one or more of iron oxide black, cobalt blue, ferrochrome black and titanium nickel yellow.
5. The silicone high-temperature-resistant powder coating as claimed in claim 4, wherein the filler is one or more of barium carbonate, titanium dioxide, talc, mica powder and aluminum powder.
6. The organosilicon high-temperature resistant powder coating as claimed in claim 5, wherein the adjuvant comprises, by mass, 3-8 parts of an antioxidant, 0.2-1 part of an accelerator, 0.2-0.5 part of benzoin, 0.3-0.5 part of a leveling agent, and 0.2-0.4 part of a brightener.
7. The process for preparing a silicone high-temperature-resistant powder coating according to any one of claims 1 to 6, comprising the steps of: 1) Putting the raw materials into a mixing cylinder according to the corresponding mass parts of the raw materials according to the formula for premixing; 2) Melting, mixing, uniformly dispersing and extruding the premixed raw materials by using a double-screw extruder, and then tabletting and crushing; 3) And sieving the finely crushed material through a 150-180-mesh standard sieve to obtain the powder coating.
8. The preparation process of the organosilicon high-temperature resistant powder coating according to claim 7, wherein the mixing time of step 1) is 3-5 minutes, the rotation speed is 500r/min, and the working temperature is 20-30 ℃.
9. The preparation process of the organosilicon high-temperature resistant powder coating as claimed in claim 8, wherein in the step 2), the temperature of the extruder is controlled at 100-110 ℃, and the screw frequency is controlled at 30-50 Hz.
10. The silicone high-temperature-resistant powder coating and the preparation process thereof as claimed in claim 9, wherein in the step 2), the crushed materials are ground by ACM grinding in a grading way, wherein the frequency of the main grinding is 25-35Hz, and the frequency of the auxiliary grinding is 25-35 Hz.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011404866.0A CN112625593A (en) | 2020-12-04 | 2020-12-04 | Organosilicon high-temperature-resistant powder coating and preparation process thereof |
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| CN202011404866.0A CN112625593A (en) | 2020-12-04 | 2020-12-04 | Organosilicon high-temperature-resistant powder coating and preparation process thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113249015A (en) * | 2021-05-08 | 2021-08-13 | 江门市皇宙实业有限公司 | High-temperature-resistant powder coating and preparation method thereof |
| CN114350253A (en) * | 2021-12-27 | 2022-04-15 | 广东西敦千江粉漆科学研究有限公司 | Enamel-like powder coating, preparation method and coating method thereof |
| CN114437607A (en) * | 2021-12-27 | 2022-05-06 | 张家港市华辰塑粉有限公司 | High-temperature-resistant organic silicon powder coating and preparation method thereof |
| CN115213014A (en) * | 2022-07-20 | 2022-10-21 | 浙江菲达环保科技股份有限公司 | Coating cathode wire and electrostatic spraying method thereof |
| CN115232446A (en) * | 2022-07-18 | 2022-10-25 | 绍兴市英纳粉末涂料有限公司 | High-temperature-resistant plastic powder for kitchen appliances and production process thereof |
| CN116082931A (en) * | 2023-02-09 | 2023-05-09 | 广东安迪新材料科技有限公司 | Fireproof and refractory insulating powder and application thereof |
| CN116082704A (en) * | 2023-01-31 | 2023-05-09 | 金发科技股份有限公司 | Colored weather-resistant polypropylene composition and preparation method thereof |
| CN116515368A (en) * | 2023-05-30 | 2023-08-01 | 云南领克新型材料有限公司 | High-temperature-resistant easy-to-clean powder coating and preparation method thereof |
-
2020
- 2020-12-04 CN CN202011404866.0A patent/CN112625593A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113249015A (en) * | 2021-05-08 | 2021-08-13 | 江门市皇宙实业有限公司 | High-temperature-resistant powder coating and preparation method thereof |
| CN114350253A (en) * | 2021-12-27 | 2022-04-15 | 广东西敦千江粉漆科学研究有限公司 | Enamel-like powder coating, preparation method and coating method thereof |
| CN114437607A (en) * | 2021-12-27 | 2022-05-06 | 张家港市华辰塑粉有限公司 | High-temperature-resistant organic silicon powder coating and preparation method thereof |
| CN115232446A (en) * | 2022-07-18 | 2022-10-25 | 绍兴市英纳粉末涂料有限公司 | High-temperature-resistant plastic powder for kitchen appliances and production process thereof |
| CN115213014A (en) * | 2022-07-20 | 2022-10-21 | 浙江菲达环保科技股份有限公司 | Coating cathode wire and electrostatic spraying method thereof |
| CN115213014B (en) * | 2022-07-20 | 2024-03-15 | 浙江菲达环保科技股份有限公司 | Coating cathode line and electrostatic spraying method thereof |
| CN116082704A (en) * | 2023-01-31 | 2023-05-09 | 金发科技股份有限公司 | Colored weather-resistant polypropylene composition and preparation method thereof |
| CN116082931A (en) * | 2023-02-09 | 2023-05-09 | 广东安迪新材料科技有限公司 | Fireproof and refractory insulating powder and application thereof |
| CN116515368A (en) * | 2023-05-30 | 2023-08-01 | 云南领克新型材料有限公司 | High-temperature-resistant easy-to-clean powder coating and preparation method thereof |
| CN116515368B (en) * | 2023-05-30 | 2023-09-29 | 云南领克新型材料有限公司 | High-temperature-resistant easy-to-clean powder coating and preparation method thereof |
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Application publication date: 20210409 |