CN109135508A - One kind imitating gold-plated powdery paints and preparation method thereof - Google Patents

One kind imitating gold-plated powdery paints and preparation method thereof Download PDF

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Publication number
CN109135508A
CN109135508A CN201810929530.2A CN201810929530A CN109135508A CN 109135508 A CN109135508 A CN 109135508A CN 201810929530 A CN201810929530 A CN 201810929530A CN 109135508 A CN109135508 A CN 109135508A
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China
Prior art keywords
plated
powdery paints
gold
epoxy resin
bronze
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Inventor
沈建富
李晋
周培德
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Xiamen Delibang New Materials Technology Co Ltd
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Xiamen Delibang New Materials Technology Co Ltd
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Priority to CN201810929530.2A priority Critical patent/CN109135508A/en
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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
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • 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
    • 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
    • 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
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/085—Copper
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0893—Zinc
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives

Abstract

The present invention relates to one kind to imitate gold-plated powdery paints and preparation method thereof, belongs to powder coating technology field, it is therefore an objective to solve existing powdery paints with it is gold-plated after color difference it is larger, it is difficult to gold-plated problem is replaced with powdery paints.The technical solution adopted is that: one kind imitating gold-plated powdery paints, according to percent by weight, including following component: 40%~58% epoxy resin, 40%~58% polyester resin, 0.8%~1% levelling agent, 0.5%~0.7% lubricant and 0.1%~0.5% bronze；The levelling agent is one of silicone levelling agent or acrylic compounds levelling agent；The lubricant is one of graphite, molybdenum disulfide or polytetrafluoroethylene (PTFE)；The bronze is ormolu.The present invention has the effect of color and gold-plated extremely close, mechanical property is good and excellent anti-corrosion performance, can replace craft of gilding.

Description

One kind imitating gold-plated powdery paints and preparation method thereof
Technical field
The present invention relates to powder coating technology fields more particularly to one kind to imitate gold-plated powdery paints and preparation method thereof.
Background technique
Powdery paints is the solid powdery synthetic resin coating formed with hard resin, pigment, filler, auxiliary agent etc., with Air is decentralized medium, has a solvent-free pollution, 100% film forming, the characteristics of low energy consumption, be most promising environment-friendly type coating it One.Due to its significant advantage in environmental protection, powdery paints is applied in many fields and replaces traditional paint.
Plating, is to plate the process of one layer of other metal or alloy in certain metal surfaces using electrolysis principle, makes metal Or layer of metal film is adhered on the surface of other materials product, to prevent metal from aoxidizing, generate improve wearability, corrosion resistance and The effects of increasing aesthetics.The metal film plated is electroplated layer, during electroplating technique, is electrolysed in the sewage of generation and contains There is the electrolyte for largely losing effectiveness, is the important pollution sources of water pollution.Therefore, replace electroplated layer to be one with powdery paints to change Kind environmental pollution, the important technology progress for reducing water pollution.
In the prior art, notification number is that the Chinese patent of CN107201134A discloses a kind of powdery paints, formula according to Weight ratio includes: 200~500 parts of epoxy resin, 50~400 parts of polyester resin, 8~10 parts of levelling agent, wetting enhancer 8~15 Part, 50~400 parts of pigments and fillers, 8~30 parts of aluminium silver powder, fatty acid or 3~20 parts of fatty acid metal soap, wherein fatty acid C17 Fatty acid or C18Fatty acid, fatty acid metal soap are hard fatty acids zinc or hard fatty acids calcium.It is applied according to the powder of program preparation Material have preferable glossiness and metal sense, but the color of powdery paints with it is silver-plated or gold-plated after color difference it is larger, it is difficult to Replace electroplated layer.
Summary of the invention
The purpose of the present invention is to provide one kind to imitate gold-plated powdery paints, has color and gold-plated extremely close, adhesive force The advantages of good, mechanical property and excellent corrosion resistance.
Above-mentioned purpose of the invention has the technical scheme that
One kind imitating gold-plated powdery paints, according to percent by weight, including following component: 40%~58% epoxy resin, 40%~58% polyester resin, 0.8%~1% levelling agent, 0.5%~0.7% lubricant and 0.1%~0.5% Bronze.
The levelling agent is one of silicone levelling agent or acrylic compounds levelling agent.
The lubricant is one of graphite, molybdenum disulfide or polytetrafluoroethylene (PTFE).
The bronze is ormolu.
Implement above-mentioned technical proposal, the powdery paints for using epoxy resin and polyester resin to prepare for primary raw material has The respective special performance of the two has splendid levelability, mechanical performance and stronger corrosion resistance.It is added in powdery paints Levelling agent can promote coating to form a smooth, smooth, uniform film in film forming procedure, increase film layer spreadability and Uniformity.Common levelling agent can be divided into acrylic compounds, organic silicon and fluorocarbons class, wherein acrylic compounds and organic Silicon class has preferable levelling to act on to powdery paints, such as acrylic resin, Lauxite and dimethyl silicone polymer.Lubrication Agent has the function of reducing frictional resistance, slows down material abrasion, and graphite, molybdenum disulfide and polytetrafluoroethylene (PTFE) can be used as powder painting The lubricant of material, to improve its wear-resisting property.Bronze is the main component for adjusting powdery paints color effects, in above-mentioned recipe ratio It under example, uses ormolu for metallic pigments, is uniformly blended into it in powdery paints, be conducive to improve powdery paints and gold-plated effect The similarity degree of fruit.
Further, further include 0.1%~0.5% carbon nanotube, the carbon nanotube is coated with silica.
Implement above-mentioned technical proposal, carbon nanotube is monodimension nanometer material, it is light-weight, it is in hexagonal mesh structure, carbon is received Carbon atom in mitron is with sp2Based on hydridization, while there are a degree of bendings for hexagonal network, form space Topological structure can form certain sp3Hybrid bond, the i.e. chemical bond of carbon atom have sp simultaneously2And sp3Mixed hybridization state, makes carbon Nanotube has good mechanical property, electric conductivity and heat transfer property.In carbon nano tube surface coated silica, be conducive to Dispersion performance of the carbon nanotube in powdery paints is improved, the carbon nanotube being coated with silicon oxide is added in powdery paints, Carbon nanotube and epoxy resin, polyester resin three are compounded with the mechanical property and heat transfer property for being conducive to improve powdery paints, into And be conducive to improve the heat-sinking capability of powdery paints.
Further, according to percent by weight, including following component: 45%~50% epoxy resin, 45%~50% Polyester resin, 0.8%~1% levelling agent, 0.5%~0.7% lubricant, 0.3%~0.5% bronze and 0.1% ~0.25% carbon nanotube, and bronze and the mass ratio of carbon nanotube are 2~4.2:1.
Further, the polyester resin is carboxyl end group saturated polyester resin.
Implement above-mentioned technical proposal, epoxy resin, polyester resin and carbon nanotube composite effect are more preferable, bronze and carbon nanometer Pipe is added according to aforementioned proportion, is conducive to reduce influence of the addition carbon nanotube to powdery paints color, is made the face of powdery paints Color is more nearly the color of gold-plated effect.
Further, the epoxy resin is nanometer modified epoxy resin.
Implement above-mentioned technical proposal, epoxy resin is the polycondensation product of epoxychloropropane and bisphenol-A or polyalcohol, in molecule Containing more than two epoxy groups, firm net macromolecular structure will form in solidification process, there is good physical mechanical Performance and antikathode stripping ability, but its weatherability and toughness are poor, carry out nano modification to epoxy resin and are conducive to improve Its weatherability and toughness, and then improve the scope of application of powdery paints.
Further, the nanometer modified epoxy resin the preparation method is as follows:
Bisphenol-A and nanometer calcium carbonate are put into reaction kettle, the quality of nanometer calcium carbonate is the 13%~24% of bisphenol-A, to anti- The sodium hydroxide solution for being added that mass fraction is 10% in kettle is answered, the additional amount of sodium hydroxide solution is the 1.73 of bisphenol-A quality Times, start reaction kettle, 25~30min is stirred by ultrasonic at 65~75 DEG C, wherein the stirring rate of reaction kettle is 250~350r/ Min, the ultrasonic power of reaction kettle are 100~200W；45~50 DEG C are down to the temperature in reaction kettle, epoxychloropropane is added, The additional amount of epoxychloropropane is 1.33 times of bisphenol-A quality, and 2~2.5h is polymerize at 80~90 DEG C, is stirred to polymer plus water Mix cleaning, cleaning into eluate without after chlorine to polymer be dried under reduced pressure to get.
Implement above-mentioned technical proposal, since nanoparticle has huge specific surface area, the hydrogen bond, electrostatic between nanoparticle Effect, which can generate suction-operated, leads to its reunion, therefore nanometer calcium carbonate and bisphenol-A is dispersed in simultaneously in certain medium, benefit The reunion that nanoparticle is destroyed with mechanical stirring and ultrasonic disperse, makes nanoparticle obtain fine dispersion, it is excellent then to obtain performance Different nanometer modified epoxy resin.
Further, the levelling agent uses 2- butyl acrylate homopolymer；The lubricant uses polytetrafluoroethylene (PTFE).
Further, the bronze surface coated silica film.
Implement above-mentioned technical proposal, coated silica is conducive to enhance point of the bronze in powdery paints on bronze surface Performance is dissipated, the color uniformity of powdery paints is improved.
It is another object of the present invention to provide a kind of preparation methods for imitating gold-plated powdery paints, comprising the following steps:
Step 1: weighing each raw material according to the proportion of raw material components, by epoxy resin, polyester resin, levelling agent, lubricant and carbon Nanotube is uniformly mixed jointly.
Step 2: the mixture that step 1 is obtained is added in extruder, incorporates tabletting and squeezes out, obtain tablet, wherein squeezes The screw speed of machine is 45~50Hz/min out, and the rate of feeding of extruder is 20~30Hz/min.
Step 3: the tablet that tabletting in step 2 obtains is placed in flour mill, and it is 35~40 μm that grinding, which obtains granularity, Semi-finished product powder, wherein the main mill revolving speed of flour mill is 45~50Hz/min, secondary mill revolving speed is 26~30Hz/min, feeding speed Degree is 30~35Hz/min.
Step 4: semi-finished product powder and bronze that step 3 obtains being placed in bonding machines, are passed through protective gas at room temperature, 3~6min of bonding under the revolving speed of 600~900rmp/min obtains imitating gold-plated powdery paints.
Further, in the step 2, the extrusion proparea temperature of extruder is 100~105 DEG C, squeezes out rear zone temperature and is 105~110 DEG C.
Implement above-mentioned technical proposal, epoxy resin, polyester resin, levelling agent, lubricant and carbon nanotube are mixed and incorporated Squeeze out, obtain the uniformly mixed tablet of material, by tablet crush and to obtained after bronze bonding it is similar to gold-plated color effects Powdery paints.
In conclusion the invention has the following advantages:
Using epoxy resin and polyester resin as primary raw material, with levelling agent, lubricant and bronze it is common it is obtained imitate gold-plated powder, Its metal sense is strong, and the color of color and gold-plated effect is very close, can replace it is gold-plated, be conducive to improve gold-plated to the tight of environment Heavily contaminated is also beneficial to reduce cost.Meanwhile the epoxy resin used in powdery paints is nanometer modified epoxy resin, favorably In the toughness and weather resistance that improve powdery paints, expand the scope of application of powdery paints.Carbon nanometer is added in powdery paints Pipe is conducive to the mechanical property heat transfer property for improving powdery paints, passes through nanometer modified epoxy resin, polyester resin and carbon nanometer The compounded combination of pipe obtains the powdery paints that can reach gold-plated effect, replace craft of gilding.
Specific embodiment
The technical solution of the embodiment of the present invention is described below.
Embodiment one
The present embodiment provides one kind to imitate gold-plated powdery paints, by 49% epoxy resin, 49% polyester resin, 1% 2- third Olefin(e) acid butyl ester homopolymer, 0.5% polytetrafluoroethylene (PTFE) and 0.5% bronze composition, wherein epoxy resin use No. CAS for The chemical products of 38891-59-7, polyester resin are carboxyl end group saturated polyester resin, and bronze is surface coated silica film Import ormolu.
The present embodiment imitate gold-plated powdery paints the preparation method is as follows:
Step 1: weigh the epoxy resin of 14.7kg, the polyester resin of 14.7kg, 0.3kg 2- butyl acrylate homopolymer and Each raw material is added in mixing tank the polytetrafluoroethylene (PTFE) of 0.15kg, is uniformly mixed.
Step 2: the mixture that step 1 is obtained is added in extruder, incorporates tabletting and squeezes out, obtain tablet, wherein squeezes The screw speed of machine is 45Hz/min out, and the rate of feeding of extruder is 20Hz/min, and squeezing out proparea temperature is 100 DEG C, is squeezed out Rear zone temperature is 105 DEG C.
Step 3: the tablet that tabletting in step 2 obtains is placed in flour mill, and it is 36 ± 1 μm that grinding, which obtains average particle size, Semi-finished product powder, wherein the main mill revolving speed of flour mill is 45Hz/min, secondary mill revolving speed is 26Hz/min, and rate of feeding is 30Hz/min。
Step 4: the bronze of semi-finished product powder and 0.15kg that step 3 obtains is placed in bonding machines, is passed through at room temperature Nitrogen, the bonding 3min under the revolving speed of 600rmp/min obtain imitating gold-plated powdery paints.
Embodiment two
The present embodiment and the difference of embodiment one essentially consist in: imitate gold-plated powdery paints by 40% epoxy resin, 58% it is poly- Ester resin, 0.8% 2- butyl acrylate homopolymer, 0.7% polytetrafluoroethylene (PTFE), 0.3% bronze and 0.2% carbon nanometer Pipe composition, wherein epoxy resin is nanometer modified epoxy resin.
The nanometer modified epoxy resin that the present embodiment uses is prepared according to the following steps:
The nanometer calcium carbonate of the bisphenol-A of 8kg and 1.04kg is put into reaction kettle, 13.84kg mass point is added into reaction kettle The sodium hydroxide solution that number is 10% starts reaction kettle, 30min is stirred by ultrasonic at 65 DEG C, wherein the stirring rate of reaction kettle For 250r/min, the ultrasonic power of reaction kettle is 100W；46 ± 1 DEG C are down to the temperature in reaction kettle, the ring of 10.64kg is added Oxygen chloropropane polymerize 2.5h at 80 DEG C, adds water and stirs cleaning to polymer, is cleaned repeatedly with hot water and cold water, and cleaning is to washing Out without being dried under reduced pressure after chlorine to polymer in liquid, it is less than dry 2h under conditions of 0.09Mpa, temperature are 135 DEG C in pressure, To obtain the final product.
The present embodiment imitate gold-plated powdery paints the preparation method is as follows:
Step 1: 2- butyl acrylate homopolymer, the 0.35kg of the epoxy resin of 20kg, the polyester resin of 29kg, 0.4kg are weighed Polytetrafluoroethylene (PTFE) and 0.1kg carbon nanotube, by each raw material be added mixing tank in, be uniformly mixed.
Step 2: the mixture that step 1 is obtained is added in extruder, incorporates tabletting and squeezes out, obtain tablet, wherein squeezes The screw speed of machine is 50Hz/min out, and the rate of feeding of extruder is 30Hz/min, and squeezing out proparea temperature is 105 DEG C, is squeezed out Rear zone temperature is 110 DEG C.
Step 3: the tablet that tabletting in step 2 obtains is placed in flour mill, and it is 39 ± 1 μm that grinding, which obtains average particle size, Semi-finished product powder, wherein the main mill revolving speed of flour mill is 50Hz/min, secondary mill revolving speed is 30Hz/min, and rate of feeding is 35Hz/min。
Step 4: the bronze of semi-finished product powder and 0.15kg that step 3 obtains is placed in bonding machines, is passed through at room temperature Nitrogen, the bonding 6min under the revolving speed of 900rmp/min obtain imitating gold-plated powdery paints.
Embodiment three
The present embodiment and the difference of embodiment one essentially consist in: imitate gold-plated powdery paints by 58% epoxy resin, 40% it is poly- Ester resin, 1% 2- butyl acrylate homopolymer, 0.6% polytetrafluoroethylene (PTFE), 0.3% bronze and 0.1% carbon nanotube Composition, wherein epoxy resin is nanometer modified epoxy resin.
The nanometer modified epoxy resin that the present embodiment uses is prepared according to the following steps:
The nanometer calcium carbonate of the bisphenol-A of 9kg and 2.16kg is put into reaction kettle, 15.57kg mass point is added into reaction kettle The sodium hydroxide solution that number is 10% starts reaction kettle, 25min is stirred by ultrasonic at 75 DEG C, wherein the stirring rate of reaction kettle For 350r/min, the ultrasonic power of reaction kettle is 200W；49 ± 1 DEG C are down to the temperature in reaction kettle, the ring of 11.97kg is added Oxygen chloropropane polymerize 2h at 90 DEG C, adds water and stirs cleaning to polymer, is cleaned repeatedly with hot water and cold water, cleaning to wash-off Without being dried under reduced pressure after chlorine to polymer in liquid, it is less than dry 1.5h under conditions of 0.09Mpa, temperature are 150 DEG C in pressure, To obtain the final product.
The present embodiment imitate gold-plated powdery paints the preparation method is as follows:
Step 1: weigh the epoxy resin of 23.2kg, the polyester resin of 16kg, 0.4kg 2- butyl acrylate homopolymer, Each raw material is added in mixing tank for the polytetrafluoroethylene (PTFE) of 0.24kg and the carbon nanotube of 0.04kg, is uniformly mixed.
Step 2: the mixture that step 1 is obtained is added in extruder, incorporates tabletting and squeezes out, obtain tablet, wherein squeezes The screw speed of machine is 48Hz/min out, and the rate of feeding of extruder is 25Hz/min, and squeezing out proparea temperature is 103 DEG C, is squeezed out Rear zone temperature is 108 DEG C.
Step 3: the tablet that tabletting in step 2 obtains is placed in flour mill, and it is 37 ± 1 μm that grinding, which obtains average particle size, Semi-finished product powder, wherein the main mill revolving speed of flour mill is 48Hz/min, secondary mill revolving speed is 28Hz/min, and rate of feeding is 33Hz/min。
Step 4: the bronze of semi-finished product powder and 0.12kg that step 3 obtains is placed in bonding machines, is passed through at room temperature Nitrogen, the bonding 5min under the revolving speed of 700rmp/min obtain imitating gold-plated powdery paints.
Example IV
The present embodiment and the difference of embodiment one essentially consist in: imitate gold-plated powdery paints by 45% epoxy resin, 53.5% Polyester resin, 0.9% dimethyl silicone polymer, 0.5% molybdenum disulfide and 0.1% bronze composition, wherein epoxy resin For nanometer modified epoxy resin.
The nanometer modified epoxy resin that the present embodiment uses is prepared according to the following steps:
The nanometer calcium carbonate of the bisphenol-A of 7kg and 1.4kg is put into reaction kettle, 12.11kg mass fraction is added into reaction kettle For 10% sodium hydroxide solution, start reaction kettle, 28min is stirred by ultrasonic at 70 DEG C, wherein the stirring rate of reaction kettle is 300r/min, the ultrasonic power of reaction kettle are 140W；47 ± 1 DEG C are down to the temperature in reaction kettle, the epoxy of 9.31kg is added Chloropropane polymerize 2.3h at 85 DEG C, adds water and stirs cleaning to polymer, is cleaned repeatedly with hot water and cold water, cleaning to wash-off Without being dried under reduced pressure after chlorine to polymer in liquid, it is less than dry 1.7h under conditions of 0.09Mpa, temperature are 140 DEG C in pressure, To obtain the final product.
The present embodiment imitate gold-plated powdery paints the preparation method is as follows:
Step 1: the dimethyl silicone polymer and 0.2kg of the epoxy resin of 18kg, the polyester resin of 21.4kg, 0.36kg are weighed Molybdenum disulfide, by each raw material be added mixing tank in, be uniformly mixed.
Step 2: the mixture that step 1 is obtained is added in extruder, incorporates tabletting and squeezes out, obtain tablet, wherein squeezes The screw speed of machine is 47Hz/min out, and the rate of feeding of extruder is 28Hz/min, and squeezing out proparea temperature is 102 DEG C, is squeezed out Rear zone temperature is 107 DEG C.
Step 3: the tablet that tabletting in step 2 obtains is placed in flour mill, and it is 38 ± 1 μm that grinding, which obtains average particle size, Semi-finished product powder, wherein the main mill revolving speed of flour mill is 47Hz/min, secondary mill revolving speed is 27Hz/min, and rate of feeding is 32Hz/min。
Step 4: the bronze of semi-finished product powder and 0.04kg that step 3 obtains is placed in bonding machines, is passed through at room temperature Nitrogen, the bonding 4min under the revolving speed of 800rmp/min obtain imitating gold-plated powdery paints.
Embodiment five
The present embodiment and the difference of embodiment one essentially consist in: imitate gold-plated powdery paints by 53% epoxy resin, 45% it is poly- Ester resin, 0.8% dimethyl silicone polymer, 0.5% graphite, 0.5% bronze and 0.2% carbon nanotube composition, In, epoxy resin is nanometer modified epoxy resin.
The nanometer modified epoxy resin that the present embodiment uses is prepared according to the following steps:
The nanometer calcium carbonate of the bisphenol-A of 6kg and 0.9kg is put into reaction kettle, 10.38kg mass fraction is added into reaction kettle For 10% sodium hydroxide solution, start reaction kettle, 27min is stirred by ultrasonic at 68 DEG C, wherein the stirring rate of reaction kettle is 300r/min, the ultrasonic power of reaction kettle are 140W；47 ± 1 DEG C are down to the temperature in reaction kettle, the epoxy of 7.98kg is added Chloropropane polymerize 2.3h at 85 DEG C, adds water and stirs cleaning to polymer, is cleaned repeatedly with hot water and cold water, cleaning to wash-off Without being dried under reduced pressure after chlorine to polymer in liquid, it is less than dry 1.7h under conditions of 0.09Mpa, temperature are 140 DEG C in pressure, To obtain the final product.
The present embodiment imitate gold-plated powdery paints the preparation method is as follows:
Step 1: weigh the epoxy resin of 15.9kg, the polyester resin of 13.5kg, 0.24kg dimethyl silicone polymer, Each raw material is added in mixing tank for the graphite of 0.15kg and the carbon nanotube of 0.06kg, is uniformly mixed.
Step 2: the mixture that step 1 is obtained is added in extruder, incorporates tabletting and squeezes out, obtain tablet, wherein squeezes The screw speed of machine is 48Hz/min out, and the rate of feeding of extruder is 25Hz/min, and squeezing out proparea temperature is 103 DEG C, is squeezed out Rear zone temperature is 108 DEG C.
Step 3: the tablet that tabletting in step 2 obtains is placed in flour mill, and it is 37 ± 1 μm that grinding, which obtains average particle size, Semi-finished product powder, wherein the main mill revolving speed of flour mill is 48Hz/min, secondary mill revolving speed is 28Hz/min, and rate of feeding is 33Hz/min。
Step 4: the bronze of semi-finished product powder and 0.15kg that step 3 obtains is placed in bonding machines, is passed through at room temperature Nitrogen, the bonding 3min under the revolving speed of 900rmp/min obtain imitating gold-plated powdery paints.
Embodiment six
The present embodiment and the difference of embodiment two essentially consist in: imitate gold-plated powdery paints by 50% epoxy resin, 48% it is poly- Ester resin, 0.9% 2- butyl acrylate homopolymer, 0.6% polytetrafluoroethylene (PTFE), 0.4% bronze and 0.1% carbon nanometer Pipe composition, wherein epoxy resin is nanometer modified epoxy resin.
The nanometer modified epoxy resin that the present embodiment uses is prepared according to the following steps:
The nanometer calcium carbonate of the bisphenol-A of 10kg and 1.8kg is put into reaction kettle, 17.3kg mass fraction is added into reaction kettle For 10% sodium hydroxide solution, start reaction kettle, 27min is stirred by ultrasonic at 68 DEG C, wherein the stirring rate of reaction kettle is 300r/min, the ultrasonic power of reaction kettle are 140W；47 ± 1 DEG C are down to the temperature in reaction kettle, the epoxy of 13.3kg is added Chloropropane polymerize 2.3h at 85 DEG C, adds water and stirs cleaning to polymer, is cleaned repeatedly with hot water and cold water, cleaning to wash-off Without being dried under reduced pressure after chlorine to polymer in liquid, it is less than dry 1.7h under conditions of 0.09Mpa, temperature are 140 DEG C in pressure, To obtain the final product.
The present embodiment imitate gold-plated powdery paints the preparation method is as follows:
Step 1: 2- butyl acrylate homopolymer, the 0.3kg of the epoxy resin of 25kg, the polyester resin of 24kg, 0.45kg are weighed Polytetrafluoroethylene (PTFE) and 0.05kg carbon nanotube, by each raw material be added mixing tank in, be uniformly mixed.
Step 2: the mixture that step 1 is obtained is added in extruder, incorporates tabletting and squeezes out, obtain tablet, wherein squeezes The screw speed of machine is 48Hz/min out, and the rate of feeding of extruder is 25Hz/min, and squeezing out proparea temperature is 103 DEG C, is squeezed out Rear zone temperature is 108 DEG C.
Step 3: the tablet that tabletting in step 2 obtains is placed in flour mill, and it is 37 ± 1 μm that grinding, which obtains average particle size, Semi-finished product powder, wherein the main mill revolving speed of flour mill is 48Hz/min, secondary mill revolving speed is 28Hz/min, and rate of feeding is 33Hz/min。
Step 4: the bronze of semi-finished product powder and 0.2kg that step 3 obtains is placed in bonding machines, is passed through nitrogen at room temperature Gas, the bonding 5min under the revolving speed of 900rmp/min obtain imitating gold-plated powdery paints.
Embodiment seven
The present embodiment and the difference of embodiment two essentially consist in: imitate gold-plated powdery paints by 48% epoxy resin, 50% it is poly- Ester resin, 1% 2- butyl acrylate homopolymer, 0.7% polytetrafluoroethylene (PTFE), 0.2% bronze and 0.1% carbon nanotube Composition, wherein epoxy resin is nanometer modified epoxy resin.
The nanometer modified epoxy resin that the present embodiment uses is prepared according to the following steps:
The nanometer calcium carbonate of the bisphenol-A of 9kg and 1.98kg is put into reaction kettle, 15.57kg mass point is added into reaction kettle The sodium hydroxide solution that number is 10% starts reaction kettle, 27min is stirred by ultrasonic at 68 DEG C, wherein the stirring rate of reaction kettle For 300r/min, the ultrasonic power of reaction kettle is 140W；47 ± 1 DEG C are down to the temperature in reaction kettle, the ring of 11.97kg is added Oxygen chloropropane polymerize 2.3h at 85 DEG C, adds water and stirs cleaning to polymer, is cleaned repeatedly with hot water and cold water, and cleaning is to washing It is less than out in pressure dry under conditions of 0.09Mpa, temperature are 140 DEG C in liquid without being dried under reduced pressure after chlorine to polymer 1.7h to get.
The present embodiment imitate gold-plated powdery paints the preparation method is as follows:
Step 1: 2- butyl acrylate homopolymer, the 0.35kg of the epoxy resin of 24kg, the polyester resin of 25kg, 0.5kg are weighed Polytetrafluoroethylene (PTFE) and 0.05kg carbon nanotube, by each raw material be added mixing tank in, be uniformly mixed.
Step 2: the mixture that step 1 is obtained is added in extruder, incorporates tabletting and squeezes out, obtain tablet, wherein squeezes The screw speed of machine is 48Hz/min out, and the rate of feeding of extruder is 25Hz/min, and squeezing out proparea temperature is 103 DEG C, is squeezed out Rear zone temperature is 108 DEG C.
Step 3: the tablet that tabletting in step 2 obtains is placed in flour mill, and it is 37 ± 1 μm that grinding, which obtains average particle size, Semi-finished product powder, wherein the main mill revolving speed of flour mill is 48Hz/min, secondary mill revolving speed is 28Hz/min, and rate of feeding is 33Hz/min。
Step 4: the bronze of semi-finished product powder and 0.1kg that step 3 obtains is placed in bonding machines, is passed through nitrogen at room temperature Gas, the bonding 6min under the revolving speed of 900rmp/min obtain imitating gold-plated powdery paints.
Comparative example one
The difference of this comparative example and embodiment one essentially consists in: the bronze used in powdery paints is replaced with copper powder, preparation side Method is the same as example 1.
Comparative example two
The difference of this comparative example and embodiment one essentially consists in: powdery paints by 80.9% carboxyl end group saturated polyester resin, 6.3% isocyanuric acid three-glycidyl ester, 8% terminal hydroxy group saturated polyester resin, 2.1% isophorone, 0.9% 2- Butyl acrylate homopolymer, 1.2% silver powder and 0.6% pure fluorine wax.This comparative example the preparation method comprises the following steps: weighing 32.36kg Carboxyl end group saturated polyester resin, the isocyanuric acid three-glycidyl ester of 2.52kg, 3.2kg terminal hydroxy group saturated polyester resin, The isophorone of 0.84kg, the silver powder of 2- butyl acrylate homopolymer 0.48kg of 0.36kg and the pure fluorine wax of 0.24kg are successively thrown Enter in bonding machines, be passed through protective gas at room temperature, under the revolving speed of 700rpm/min bonding 5min to get.
Product testing
Powdery paints adhesive force prepared by each embodiment and comparative example is detected according to the standard of GB/T9286-1998；Root Detection can be carried out to powdery paints impact resistance prepared by each embodiment and comparative example according to the standard of GB/T1732-1993；According to The standard of GB/T1771-1991 carries out salt spray test, testing result and examination to powdery paints prepared by each embodiment and comparative example Test that the results are shown in Table 1.
The testing result of each embodiment and comparative example of table 1
Group Adhesive force (drawing compartment away from 2mm)/grade Impact resistance/kg.cm Salt spray test/h
Embodiment one 0 ≥50 >900
Embodiment two 0 ≥60 >1000
Embodiment three 0 ≥65 >1000
Example IV 0 ≥50 >900
Embodiment five 0 ≥65 >1000
Embodiment six 0 ≥65 >1000
Embodiment seven 0 ≥65 >1000
Comparative example one 0 ≥50 >900
Comparative example two 1 ≥35 >500
Seen from table 1, the powdery paints of various embodiments of the present invention preparation all has excellent shock resistance and corrosion-resistant Adhesive force between performance, with material is good.Effect after each embodiment and comparative example film-forming is compared with gilding Right, color and the gold-plated effect for visually observing visible each embodiment are very close, have stronger metal sense, can substitute plating metal working Skill.The powdery paints and gold-plated effect color difference that comparative example one replaces the scheme of bronze to obtain with copper powder are larger, and comparative example two uses The effect of powdery paints and chromium plating that silver powder is prepared also has significant difference.Meanwhile it is according to the invention formula and preparation side The powdery paints that method obtains is significantly better than that comparative example two, each embodiment in terms of adhesive force, impact resistance and corrosion resistance In, and it is more excellent with the performance of embodiment three, five, six, seven, it was demonstrated that bronze and the mass ratio of carbon nanotube are in 2~4.2:1 model Formula in enclosing is more preferable；The performance of embodiment two is more aforementioned four slightly poor, but is better than embodiment one, it was demonstrated that using nano modification Epoxy resin is conducive to improve the performance of powdery paints.

Claims (10)

1. one kind imitates gold-plated powdery paints, which is characterized in that according to percent by weight, including following component: 40%~58% Epoxy resin, 40%~58% polyester resin, 0.8%~1% levelling agent, 0.5%~0.7% lubricant and 0.1%~0.5% Bronze；
The levelling agent is one of silicone levelling agent or acrylic compounds levelling agent；
The lubricant is one of graphite, molybdenum disulfide or polytetrafluoroethylene (PTFE)；
The bronze is ormolu.
2. one kind according to claim 1 imitates gold-plated powdery paints, which is characterized in that further include that 0.1%~0.5% carbon is received Mitron, the carbon nanotube are coated with silica.
3. one kind according to claim 2 imitates gold-plated powdery paints, which is characterized in that according to percent by weight, including Following component: 45%~50% epoxy resin, 45%~50% polyester resin, 0.8%~1% levelling agent, 0.5%~0.7% Lubricant, 0.3%~0.5% bronze and 0.1%~0.25% carbon nanotube, and bronze and the mass ratio of carbon nanotube be 2~ 4.2:1。
4. one kind according to claim 3 imitates gold-plated powdery paints, which is characterized in that the polyester resin is full for carboxyl end group And polyester resin.
5. one kind according to claim 3 imitates gold-plated powdery paints, which is characterized in that the epoxy resin is nano modification Epoxy resin.
6. one kind according to claim 5 imitates gold-plated powdery paints, which is characterized in that the nanometer modified epoxy resin The preparation method is as follows:
Bisphenol-A and nanometer calcium carbonate are put into reaction kettle, the quality of nanometer calcium carbonate is the 13%~24% of bisphenol-A, to reaction The sodium hydroxide solution that mass fraction is 10% is added in kettle, the additional amount of sodium hydroxide solution is 1.73 times of bisphenol-A quality, Start reaction kettle, 25~30min is stirred by ultrasonic at 65~75 DEG C, wherein the stirring rate of reaction kettle is 250~350r/ Min, the ultrasonic power of reaction kettle are 100~200W；45~50 DEG C are down to the temperature in reaction kettle, epoxychloropropane is added, The additional amount of epoxychloropropane is 1.33 times of bisphenol-A quality, and 2~2.5h is polymerize at 80~90 DEG C, is stirred to polymer plus water Mix cleaning, cleaning into eluate without after chlorine to polymer be dried under reduced pressure to get.
7. one kind as claimed in any of claims 1 to 6 imitates gold-plated powdery paints, which is characterized in that the bronze Surface coated silica film.
8. one kind as claimed in any of claims 1 to 6 imitates gold-plated powdery paints, which is characterized in that the levelling Agent uses 2- butyl acrylate homopolymer；The lubricant uses polytetrafluoroethylene (PTFE).
9. a kind of preparation method for imitating gold-plated powdery paints as claimed in any of claims 1 to 8, feature exist In, comprising the following steps:
Step 1: weighing each raw material according to the proportion of raw material components, by epoxy resin, polyester resin, levelling agent, lubricant and carbon Nanotube is uniformly mixed jointly；
Step 2: the mixture that step 1 is obtained is added in extruder, incorporates tabletting and squeezes out, obtains tablet, wherein extruder Screw speed be 45~50Hz/min, the rate of feeding of extruder is 20~30 Hz/min；
Step 3: the tablet that tabletting in step 2 obtains is placed in flour mill, grinding obtain that granularity is 35~40 μm half at Product powder, wherein the main mill revolving speed of flour mill is 45~50Hz/min, secondary mill revolving speed is 26~30 Hz/min, and rate of feeding is 30~35 Hz/min；
Step 4: semi-finished product powder and bronze that step 3 obtains being placed in bonding machines, are passed through protective gas at room temperature, 3~6min of bonding under the revolving speed of 600~900rmp/min obtains imitating gold-plated powdery paints.
10. a kind of preparation method for imitating gold-plated powdery paints according to claim 9, which is characterized in that the step 2 In, the extrusion proparea temperature of extruder is 100~105 DEG C, and squeezing out rear zone temperature is 105~110 DEG C.
CN201810929530.2A 2018-08-15 2018-08-15 One kind imitating gold-plated powdery paints and preparation method thereof Pending CN109135508A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1557852A (en) * 2004-02-10 2004-12-29 浙江大学 Process for preparing nano-particle modified epoxy resin
CN104384088A (en) * 2014-11-13 2015-03-04 厦门建霖工业有限公司 Electroplating-free antique metal surface treatment method
CN104910652A (en) * 2015-04-27 2015-09-16 昆山德泰新材料科技有限公司 Copper-based metal powder pigment and preparation method thereof
CN105038515A (en) * 2015-09-07 2015-11-11 福建万安实业有限公司 Pure-copper-imitated anti-corrosion powder coating
CN106519898A (en) * 2016-10-28 2017-03-22 福建万安实业集团有限公司 Imitated gold thermosetting powder coating and preparation method thereof
CN108084841A (en) * 2017-12-04 2018-05-29 浙江捷宇新材料科技股份有限公司 A kind of acidproof alkaline simulating golden colour powdery paints and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1557852A (en) * 2004-02-10 2004-12-29 浙江大学 Process for preparing nano-particle modified epoxy resin
CN104384088A (en) * 2014-11-13 2015-03-04 厦门建霖工业有限公司 Electroplating-free antique metal surface treatment method
CN104910652A (en) * 2015-04-27 2015-09-16 昆山德泰新材料科技有限公司 Copper-based metal powder pigment and preparation method thereof
CN105038515A (en) * 2015-09-07 2015-11-11 福建万安实业有限公司 Pure-copper-imitated anti-corrosion powder coating
CN106519898A (en) * 2016-10-28 2017-03-22 福建万安实业集团有限公司 Imitated gold thermosetting powder coating and preparation method thereof
CN108084841A (en) * 2017-12-04 2018-05-29 浙江捷宇新材料科技股份有限公司 A kind of acidproof alkaline simulating golden colour powdery paints and preparation method thereof

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