WO2014071701A1 - Ceramic coating material with 3d effect, and coating method thereof - Google Patents

Abstract

A ceramic coating material with a 3D effect, and a coating method thereof. The coating material is formed by the following components in weight percentage: isopropanol (5-15%), magnetic powder (1-5%), and a nanometer bamboo charcoal powder (1-5%), nanometer silicon boride (0.5-2.5%), and remaining final coating. The remaining final coating is formed by the following components in weight percentage: formic acid (0.2-1%), silicasol (40-50%), a catalyst (0.2-1%), a leveling agent (0.8-1.2%), a non-stick auxiliary agent (15-20%), and remaining silane. The coating method of the ceramic coating comprises the following steps: (1) designing a pattern on a template or a stretch plate, arranging strong magnets in a same direction, and attaching the strong magnets on a positioning point of a bottom plate; (2) preparing a ceramic coating material; (3) carrying out sand blasting and preheating on a substrate, and spraying a primer coat on the substrate, placing a magnetic block with a pattern on the substrate, spraying the ceramic coating material, and then spraying finish paint, carrying out low temperature curing for 8 to 10 minutes at a temperature of 80 to 100 degrees centigrade, and carrying out high temperature curing for 10 to 20 minutes at a temperature of 240 to 280 degrees centigrade.

Description

 Ceramic paint with 3D effect and coating method thereof

[Technical Field]

 The present invention relates to the field of high performance coating technology, and more particularly to a ceramic coating having a 3D effect and a coating method therefor.

【Background technique】

 A modern cookware that combines functionality and decoration, not only as a convenient tool, but also a beautiful landscape in life. The outer surface of the existing cookware is mainly composed of a hard oxide layer, a fluorocarbon coating and a silicone coating. The hard oxide layer has poor functionality, is not protective enough to the substrate, is not easy to clean, and is not strong in decoration; fluorocarbon coating, silicone coating has low hardness, poor scratch resistance, high temperature resistance, no resistance to open flame, easy to separate Toxic gases are detrimental to human health, and most of them are solvent-based paints, which are highly polluting. The surface of the existing tableware is single and relatively rigid. A 3D-effected pattern has been developed to meet the needs of the market.

[Summary of the Invention]

 SUMMARY OF THE INVENTION An object of the present invention is to overcome the deficiencies of the prior art and to provide a ceramic coating having a 3D effect and a coating method therefor.

 The object of the present invention is achieved by the following technical solutions:

 A magnetic coating having a 3D effect, the mass percentage of which is:

 Isopropanol 5~15 %

Magnetic powder 1~5 % Nano bamboo charcoal powder 1~5%

 Nano-boron silicon 0.5~2.5%

 Topcoat

 The mass percentage of the magnetic powder is 2 to 4%, preferably 3%;

 The mass percentage of the nano bamboo charcoal powder is 2 to 4%, preferably 3%;

 The nano bamboo charcoal powder may be replaced by nano coffee charcoal or nano shell carbon;

 The mass percentage of the silicon nanoboride is 1 to 2%, and most preferably 1.5%;

 The nano bamboo charcoal powder is a commercially available product having a particle size of about 80 nm.

 Preparation of the nano-coffee charcoal:

 (1) The coffee grounds are used as raw materials, first dried by 150~180 °C for 1~2 hours, then the temperature is raised to 300~400 °C for 1~2 hours, then heated to 600~700 °C for calcination 1 ~2 hours to get multifunctional coffee charcoal;

 (2) Micronization: The multifunctional coffee charcoal is micronized and ground into a 30~200 nm multi-functional carbon powder, preferably 75 nm; the micronization method is ball milling, high-speed centrifugation or nanotechnology. .

 Preparation of the shell charcoal:

 (1) Apricot shell and walnut shell as raw materials, the raw material mass ratio of the two is 1:1, first dried by 150~180 °C for 1~2 hours, then the temperature is raised to 300~400 °C for calcination 1~ 2 hours, and then heated to 600~700 ° C for 1 to 2 hours to obtain a multifunctional shell charcoal;

 (2) Micronization: The multi-functional shell charcoal is micronized and ground into a 30~200 nm multi-functional carbon powder, preferably 75 nm; the micronization method is ball milling, high-speed centrifugation or nanotechnology. Wait.

 The nano boron hydride is purchased from Hefei Kaier Nano Technology Co., Ltd.

 The magnetic powder was purchased from 3D magnetic powder of Shenzhen Ruisi Beite Technology Co., Ltd.

A magnetic coating having a 3D effect obtained by mixing and stirring a raw material. The top coat, the mass percentage of the raw material component is:

 Formic acid 0.2-1%

 Silica sol 40~50%

 Catalyst 0.2-1%

0.8~1.2%

 Non-stick additive 15~20%

焼

 The catalyst is zinc acetate, and the total amount of raw materials is:

 ZnO 8.2%

 28.6%

 Deionized water 63.2%

 Catalyst configuration method: adding a first part of deionized water (corresponding to 30% of the total amount of catalyst) in the vessel, adding ZnO under dispersing and stirring, maintaining the rotation speed, slowly adding acetic acid, and maintaining dispersion for 5 to 10 minutes; adding the remaining Deionized water, sealed tightly; until the solution is clear.

 The leveling agent is a commonly used leveling agent for coatings, and the silanes obtained from the powder coating leveling of Shanghai Songya Chemical Co., Ltd. are methyl-3methoxysilane, methyl-3ethoxysilane and Mixtures of epoxysilanes are all commercially available products.

 The top coat is obtained by mixing and stirring the raw materials.

 The primer has a raw material component percentage of:

 Hydroxy silicone oil 0.2-0.6%

 Catalyst 0.2-0.5%

Acetic acid 0.1-0.3% Silica sol 25~35%

 Lye 0.5-1.5%

 Filler 0.5-3.5%

 Pigment 15~25%

 N-butanol 0.2-0.5%

 焼

 The filler is alumina fiber and precipitated barium sulfate; it is a commercially available product;

 The pigment is titanium dioxide, or is replaced according to color requirements, and is a commercially available product;

 The silane is a mixture of methyl-3-methoxysilane, methyl-3-ethoxysilane and epoxysilane; all of which are commercially available products.

 The primer is obtained by mixing and stirring the raw materials.

 A coating method for a ceramic coating having a 3D effect, the specific steps of which are:

 A: The design of the pattern:

 (1) design a graphic on a template or stretched sheet, and draw a positioning point by a pencil;

 (2) The strong magnets are arranged in phase, and are glued to the positioning points of the bottom plate with 502 glue;

 (3) Correcting the pattern arrangement distance of the arranged magnetic blocks;

 The ratio of two ceramic coatings:

 Three coating

 (1) blasting and cleaning of the substrate;

 (2) preheating the substrate 45~50 °C;

(3) spraying primer, film thickness 20~30μιη _;

(4) Place the patterned magnetic block mold on the substrate, spray the magnetic coating, and spray the surface paint immediately after the film thickness is 2~3μιη, the film thickness is 3~5μιη _; (The magnetic block mold can directly place the fixture before spraying the bottom layer) Upper) fixture speed ratio is often The rule is slightly slower so as not to affect the magnetic particle arrangement rules;

 (5) After the top coat is sprayed, it is removed at low temperature, the curing temperature is 80~100°C, and the curing time is 8~10min; the advantages are as follows: The internal solvent slowly evaporates to achieve a better film state, avoiding direct high temperature drying. Paint film defects such as cracking and foaming caused by baking;

 (6) High temperature curing, curing temperature is 240~280°C, curing time is 10~20min; Advantages: The coating is completely cured to form a film to achieve its proper performance.

 Compared with the prior art, the positive effects of the present invention are:

 The invention has the advantages of simple use, low cost and good decorative effect;

 The pattern of the invention is controllable, and the specific 3D realistic effect meets the needs of the market;

 The coating of the invention has strong non-stickiness and wear resistance;

 The nano-boron silicon according to the invention has the characteristics of high purity, small particle size distribution range, high specific surface area, high abrasion resistance, used as various standard abrasives and ground hard alloys, and used as ceramic coating materials.

【detailed description】

 DETAILED DESCRIPTION OF THE INVENTION A specific embodiment of a ceramic coating having a 3D effect and a method of producing the same according to the present invention is provided below. Example 1

 A coating method for a ceramic coating having a 3D effect, the specific steps of which are:

 A: The design of the pattern:

 (1) designing a graphic on a template or stretched sheet, and drawing a positioning point by a pencil;

 (2) The strong magnets are arranged in phase, and are glued to the positioning points of the bottom plate with 502 glue;

 (3) correcting the pattern arrangement distance of the arranged magnetic blocks;

The pattern may be a company logo, an animal pattern, or a personalized font, depending on the actual The need to change.

 The ratio of the second ceramic coating: see Table 1 - 3;

 Three coating

 (1) blasting and cleaning of the substrate;

 (2) preheating the substrate 45~47 ° C;

(3) spraying primer, film thickness 20~23μιη _;

(4) Place the patterned magnetic block mold on the substrate, spray the magnetic coating, and spray the surface paint immediately after the film thickness is 2~3μιη, the film thickness is 3~5μιη _; (The magnetic block mold can directly place the fixture before spraying the bottom layer) The upper clamp speed is slightly slower than the conventional one, so as not to affect the magnetic powder arrangement rule;

 (5) After the topcoat is sprayed off, it is cured at a low temperature, the curing temperature is 80~85 °C, and the curing time is 8~10 min;

(6) High temperature curing, curing temperature is 240~250 °C, curing time is 10~12min. Example 2

 A coating method for a ceramic coating having a 3D effect, the specific steps of which are:

 A: The design of the pattern:

 (1) design a graphic on a template or stretched sheet, and draw a positioning point by a pencil;

 (2) The strong magnets are arranged in phase, and are glued to the positioning points of the bottom plate with 502 glue;

 (3) Correcting the pattern arrangement distance of the arranged magnetic blocks;

 The pattern may be a trademark of the company, an animal pattern, or a personalized font, which may vary according to actual needs.

 The ratio of the second ceramic coating: see Table 1 - 3;

 Three coating

(1) blasting and cleaning of the substrate; (2) The substrate is preheated at 46~48 °C;

(3) spraying primer, film thickness 22~25μιη _;

(4) Place the patterned magnetic block mold on the substrate, spray the magnetic coating, and spray the surface paint immediately after the film thickness is 2~3μιη, the film thickness is 3~5μιη _; (The magnetic block mold can directly place the fixture before spraying the bottom layer) The upper clamp speed is slightly slower than the conventional one, so as not to affect the magnetic powder arrangement rule;

 (5) After the topcoat is sprayed off, it is cured at a low temperature, the curing temperature is 85~90 °C, and the curing time is 8~10 min;

(6) High temperature curing, curing temperature is 250~260 °C, curing time is 12~14min. Example 3

 A coating method for a ceramic coating having a 3D effect, the specific steps of which are:

 A: The design of the pattern:

 (1) designing a graphic on a template or stretched sheet, and drawing a positioning point by a pencil;

 (2) The strong magnets are arranged in phase, and are glued to the positioning points of the bottom plate with 502 glue;

 (3) correcting the pattern arrangement distance of the arranged magnetic blocks;

 The pattern may be a trademark of the company, an animal pattern, or a personalized font, which may vary according to actual needs.

 The ratio of the second ceramic coating: see Table 11-3;

 Three coating

 (1) blasting and cleaning the substrate;

 (2) Preheating of the substrate 47~48 °C;

(3) spraying primer, film thickness 24~26μιη _;

(4) Place the patterned magnetic block mold on the substrate, spray the magnetic coating, and spray the surface paint immediately after the film thickness is 2~3μιη, the film thickness is 3~5μιη _; (The magnetic block mold can directly place the fixture before spraying the bottom layer) Upper) fixture speed ratio is often The rule is slightly slower so as not to affect the magnetic particle arrangement rules;

 (5) After the topcoat is sprayed off, it is cured at a low temperature, the curing temperature is 90~92 °C, and the curing time is 8~10 min;

(6) High temperature curing, curing temperature is 260~265 °C, curing time is 15~17min. Example 4

 A coating method for a ceramic coating having a 3D effect, the specific steps of which are:

 A: The design of the pattern:

 (1) design a graphic on a template or stretched sheet, and draw a positioning point by a pencil;

 (2) The strong magnets are arranged in phase, and are glued to the positioning points of the bottom plate with 502 glue;

 (3) Correcting the pattern arrangement distance of the arranged magnetic blocks;

 The pattern may be a trademark of the company, an animal pattern, or a personalized font, which may vary according to actual needs.

 The ratio of the second ceramic coating: see Table 1 - 3;

 Three coating

 (1) blasting and cleaning of the substrate;

 (2) preheating the substrate 48~50 °C;

(3) spraying primer, film thickness 26~28μιη _;

(4) Place the patterned magnetic block mold on the substrate, spray the magnetic coating, and spray the surface paint immediately after the film thickness is 2~3μιη, the film thickness is 3~5μιη _; (The magnetic block mold can directly place the fixture before spraying the bottom layer) The upper clamp speed is slightly slower than the conventional one, so as not to affect the magnetic powder arrangement rule;

 (5) After the top coat is sprayed off, it is cured at a low temperature, the curing temperature is 95~100 ° C, and the curing time is 8~10 min;

(6) High temperature curing, curing temperature is 270~275 °C, curing time is 16~18min. Example 5

 A coating method for a ceramic coating having a 3D effect, the specific steps of which are:

 A: The design of the pattern:

 (1) designing a graphic on a template or stretched sheet, and drawing a positioning point by a pencil;

 (2) The strong magnets are arranged in phase, and are glued to the positioning points of the bottom plate with 502 glue;

 (3) correcting the pattern arrangement distance of the arranged magnetic blocks;

 The pattern may be a trademark of the company, an animal pattern, or a personalized font, which may vary according to actual needs.

 The ratio of the second ceramic coating: see Table 11-3;

 Three coating

 (1) blasting and cleaning the substrate;

 (2) preheating the substrate 48~50 °C;

(3) spraying primer, film thickness 28~30μιη _;

(4) Place the patterned magnetic block mold on the substrate, spray the ceramic coating, and spray the surface paint immediately after the film thickness is 2~3μιη, the film thickness is 3~5μιη _; (The magnetic block mold can directly place the fixture before spraying the bottom layer) The upper clamp speed is slightly slower than the conventional one, so as not to affect the magnetic powder arrangement rule;

 (5) After the topcoat is sprayed, it is removed at low temperature, and the curing temperature is 95~100 °C, and the curing time is 8~10 min;

(6) High temperature curing, curing temperature is 275~280 °C, curing time is 18~20min. Comparative example 1 to 5

 In Example 1 to 5: In the third step of coating, the magnetic paint was changed to a top coat, and other conditions were unchanged. Test method of the invention:

Characterization 1: Non-sticky experiment When the temperature is 195~205 °C, the eggs are beaten. After the stopwatch is timed for 90s, the eggs are lightly picked up with chopsticks. Repeat the above experiment to the egg stick pan. After testing, the eggs begin to stick to the pan.

 Example 1 - 5, after an average of 20 times, the eggs began to stick to the pan. After at least 20 times, the eggs are not sticky. Comparative Example 1 to 5, after an average of 15 times, the eggs are not sticky.

Characterization 2: Adhesion test

 Use the cutter to longitudinally cut 10 lines on the workpiece, 10 transverse tangent lines, perpendicular to each other, and the interval is 1mm. Use 3M tape to stick to the cross-cut, strip the tape along the vertical surface of the coating, and the stripping times of the tape are vertical and horizontal. After each peeling was alternately 5 times, the peeling state of the coating layer was observed.

 Evaluation grade Coating peeling condition

 The 100/100 coating tangent is smooth on both sides, and the square of the tangent intersection has no peeling.

 The 80/100 coating tangential line was slightly peeled off, and the square peeling area of the tangent intersection was within 5 %. Example 1-5, the average rating was 100/100.

 For the comparative example 1 to 5, the average rating is 80/100.

Characterization 3: Acid and acid non-stick test

 The rice cooker was boiled for 5 h with 5 % to 15 % acetic acid solution, and the rice was tested for non-stickiness to observe whether the coating had detachment and blistering.

 Example 1 to 5, no blistering phenomenon.

 Comparative example 1 to 5, there is a slight shedding phenomenon.

Characterization of four-coat wear resistance test

 Dissolve 0.5% of the wash water with detergent, apply a pressure of 3Kg with a 3M scouring pad, and swing it one stroke at a time. Replace the scouring pad and check the coating once every 250 strokes to record the number of times the coating is worn.

 In the case of Example 1 to 5, the number of abrasion resistance was 7000-8000 times, which was remarkably improved.

For the comparative example 1 to 5, the number of abrasion resistance was 4500 to 5000 times. Characterizing five high temperature resistance

 The substrate was placed in a muffle furnace and sintered at a temperature of 350 ° C. After 30 minutes, it was taken out, and the color difference was used to characterize the color difference before and after, to see if it was discolored.

 Example 1 to 5, the color did not change.

 Comparative Example 1 - 5, some colors have a slight color difference.

 Table 1 Mass ratio of ceramic coatings (%):

 Table 2 Quality ratio of topcoat (%):

Table 3 Mass ratio of primer (%):

Example 6

 A ceramic coating for a controllable pattern in aluminum, the nano-charcoal in Example 1 was replaced with nano-coffee charcoal, and the others were unchanged.

 A method of coating a ceramic coating for a controllable pattern in aluminum is the same as in Example 1. Example 7

 A ceramic coating for a controllable pattern in aluminum, the nano-charcoal in Example 2 was replaced with nano-coffee charcoal, and the others were unchanged.

The coating method was the same as in Example 2. Example 8

 A ceramic coating for a controllable pattern in aluminum, the nano-charcoal in Example 3 was replaced with nano-coffee charcoal, and the others were unchanged.

 A method of coating a ceramic coating for a controllable pattern in aluminum is the same as in Example 3. Example 9

 A ceramic coating for a controllable pattern in aluminum, the nano-charcoal in Example 4 was replaced with nano-coffee charcoal, and the others were unchanged.

 A method of coating a ceramic coating for a controllable pattern in aluminum is the same as in Example 4. Example 10

 A ceramic coating for a controllable pattern in aluminum, the nano-charcoal in Example 5 was replaced with nano-coffee charcoal, and the others were unchanged.

 A method of coating a ceramic coating for a controllable pattern in aluminum is the same as in Example 5.

 The invention contains coffee charcoal, and the product has the following advantages: The coffee charcoal production raw material comes from the recycled coffee grounds, and is recycled and reused environmentally, without increasing the burden on the earth, thereby achieving the purpose of energy saving and carbon reduction; when the body or the surrounding environment has an odor, The odor is absorbed by van der Waals gravitation; the coffee carbon structure has large voids, rough surface, high heat absorption efficiency, fast speed, and instant heating function. Comparative Example 6-10

In Example 1 to 5: In the third step of coating, the magnetic coating was changed to a top coat, and other conditions were unchanged. Characterization 1: Non-sticky experiment

 Example 6-10, after an average of 20 times, the eggs began to stick to the aluminum pan. At least 20 times, the eggs are not sticky

IS pot.

 Comparative Example 6-10, after an average of 14 times, the eggs do not stick to the aluminum pan.

 Characterization 2: Adhesion test

 Example 6-10, the average rating is 100/100.

 For the comparative example 6-10, the average rating is 80/100.

Characterization 3: Acid and acid non-stick test

 Example 6-10, no blistering phenomenon.

 Comparative example 6-10, there is a slight shedding phenomenon.

Characterization of four-coat wear resistance test

 In Examples 6-10, the number of wear resistance was 7000-8000 times, which was significantly improved.

 Comparative Example 6-10, the number of wear resistance is 4400-4800 times.

Characterization five

 Example 6-10, the color did not change.

 Comparative Example 6-10, some colors have a slight color difference. Example 11

 A ceramic coating having a simulated pattern effect in an interior panel, the nano-charcoal in the embodiment 1 is replaced with a shell charcoal, and the others are unchanged.

A coating method for a ceramic coating having a simulated pattern effect in an interior panel is the same as in Embodiment 1. Example 12 A ceramic coating having a simulated pattern effect in an interior panel, the nano-charcoal in the embodiment 2 is replaced with a shell charcoal, and the others are unchanged.

 A coating method for a ceramic coating having a simulated pattern effect in an interior panel is the same as in Embodiment 2.

Example 13

 A ceramic coating having a simulated pattern effect in an interior panel, the nano-charcoal in Example 3 is replaced with a shell charcoal, and the others are unchanged.

 A coating method for a ceramic coating having a simulated pattern effect in an interior panel is the same as in Embodiment 3. Example 14

 A ceramic coating having a simulated pattern effect in an interior panel, the nano-charcoal in the embodiment 4 is replaced with a shell charcoal, and the others are unchanged.

 A coating method for a ceramic coating having a simulated pattern effect in an interior panel is the same as in Embodiment 4. Example 15

 A ceramic coating having a simulated pattern effect in an interior panel, the nano-charcoal in the embodiment 5 is replaced with a shell charcoal, and the others are unchanged.

 A coating method for a ceramic coating having a simulated pattern effect in an interior panel is the same as in Embodiment 5. The invention comprises a shell carbon formed by an apricot shell and a walnut shell, and has the advantages of developed pore structure, large specific surface area, strong adsorption capacity, high mechanical strength, small bed resistance, good chemical stability, easy regeneration, durability and the like, and It has various sizes of granularity; it decomposes harmful gases such as formaldehyde, ammonia, benzene, cigarettes, oil fume and various odors, especially carcinogenic aromatic substances in the air. Activated carbon has a strong adsorption capacity. Comparative Example 11-15

In Example 1 to 5: In the third step of coating, the magnetic coating was changed to a top coat, and other conditions were unchanged. Characterization 1: Non-sticky experiment

 Example 11-15. After an average of 20 passes, the eggs began to stick to the interior panel. At least 20 times, the eggs are not sticky.

 Comparative Example 11-15 After an average of 13 times, the eggs did not stick to the interior panel.

Characterization 2: Adhesion test

 Example 11-15, the average rating was 100/100.

 Comparative Example 11-15 The average rating was 80/100.

Characterization 3: Acid and acid non-stick test

 Example 11-15, no blistering phenomenon.

 Comparative Example 11-15, there is a slight shedding phenomenon.

Characterization of four-coat wear resistance test

 Example 11-15, the number of wear resistance was 7000-8000 times, which was significantly improved.

 Comparative Example 11-15, the number of wear resistance was 4400-4900 times.

Characterization five

 Example 11-15, the color did not change.

 Comparative Example 11-15. Some colors have slight color difference.

Claims

Claim

A magnetic coating having a 3D effect, characterized in that the percentage of raw material components is:

 Isopropyl alcohol 5~15%

 Magnetic powder 1~5%

 Nano bamboo charcoal powder 1~5%

 Nano-boron silicon 0.5~2.5%

 Topcoat balance.

 2. The magnetic paint having a 3D effect according to claim 1, wherein the top coat has a raw material component percentage of:

 Formic acid 0.2-1%

 Silica sol 40~50%

 Catalyst 0.2~1%

 Leveling agent 0.8~1.2%

 Non-stick additive 15~20%

 Silicon germanium balance.

 3. A method for coating a ceramic coating having a 3D effect, characterized in that the specific steps are as follows: 1. Design of the pattern:

 Preparation of two magnetic coatings:

 Three coating

 (1) blasting and cleaning of the substrate;

(2) preheating the substrate 45~50 °C _;

(3) spraying primer, film thickness 20~25μιη _; (4) Place a magnetic block mold with a pattern on the substrate, spray the magnetic powder coating, and spray the top coat immediately after the film thickness is 2~3μηη, the film thickness is 3~5μιη _;

 (5) After the topcoat is sprayed off, it is cured at a low temperature, the curing temperature is 80~100 °C, and the curing time is 8~10min;

 (6) Curing at a high temperature, the curing temperature is 240 to 280 ° C, and the curing time is 10 to 20 min.

 4. A method of coating a ceramic coating having a 3D effect according to claim 3, wherein the primer has a raw material component percentage of:

 Hydroxy silicone oil 0.2 ^0.6%

 Catalyst 0.2- ^0.5%

 Acetic acid 0.1 ^0.3%

 Silica Sol 25- -35%

 Lye 0.5- ^1.5%

 Filler 0.5- ^3.5%

 Pigment 15- -25%

 n-Butanol 0.2- ^0.5%

 焼 balance

 5. A ceramic coating with 3D effect in tableware.

 6. The magnetic paint having a 3D effect according to claim 1, wherein the nano-bamboo charcoal powder is replaced by nano-coffee charcoal or nano-shell charcoal.