CN106893461A - Compound powdery paints of pearl essence and preparation method thereof - Google Patents
Compound powdery paints of pearl essence and preparation method thereof Download PDFInfo
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- CN106893461A CN106893461A CN201710245255.8A CN201710245255A CN106893461A CN 106893461 A CN106893461 A CN 106893461A CN 201710245255 A CN201710245255 A CN 201710245255A CN 106893461 A CN106893461 A CN 106893461A
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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
- C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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
- C09D5/36—Pearl essence, e.g. coatings containing platelet-like pigments for pearl lustre
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
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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
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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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
- C08K3/02—Elements
- C08K3/04—Carbon
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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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3467—Heterocyclic compounds having nitrogen in the ring having more than two nitrogen atoms in the ring
- C08K5/3477—Six-membered rings
- C08K5/3492—Triazines
- C08K5/34924—Triazines containing cyanurate groups; Tautomers thereof
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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
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/41—Compounds containing sulfur bound to oxygen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Abstract
The invention belongs to powder coating technology field, and in particular to a kind of compound powdery paints of pearl essence and preparation method thereof.The compound powdery paints of pearl essence is made up of the following raw material：Poly terephthalic acid DOPCP, isocyanuric acid three-glycidyl ester, quaternary ammonium salt charge regulating agent, acrylic ester type levelling agent, styrax degasser, the structure of hindered amine light stabilizer, pigment, pearl essence.The compound powdery paints of pearl essence of the invention is high containing pearl essence, and the coating after spraying can reach the surface effect of liquid pearly coating, and chargeding performance is good, and electrostatic spraying construction is easy, and sprays stabilization.
Description
Technical field
The invention belongs to powder coating technology field, and in particular to a kind of compound powdery paints of pearl essence and its preparation side
Method.
Background technology
Powdery paints is a kind of coating without solvent, 100% solid powdery.With Diamond Search discharge, recyclable profit
With the advantage such as, film performance is excellent.Various countries improved constantly to environmental requirement in recent years, and the coating material with contaminative is also continuous
It is substituted, obtain preferable development as the powdery paints with obvious environment-friendly advantage.Wherein in metal material, polymer plastic
The different fields such as material material, wooden material, powdery paints constantly replaces liquid paint, wider, more environmentally friendly as application
Application new material.
Pearl essence is a kind of pearlescent pigment with the mica sheet of thin layer of metal oxide cladding as main component.Due to pearly-lustre
Powder can embody pearl effect to incident ray by multipath reflection, interference, therefore it has soft pearly luster, this
Special gloss has the unrivaled effect of other pigment.And pearl essence possesses preferable weatherability, high temperature resistant, chemically-resistant
Product, electrical insulating property and the characteristic such as nontoxic, thus with pearl essence coating be widely used in motor locomotive, building materials,
The numerous areas such as household electrical appliances, furniture, articles for daily use, general industry.
For current, the coating material more preferable for pearl effect, pearly-lustre powder content is higher is most of for liquid paint is applied
Material, and it belongs to the type of higher-end in coating.The powdery paints of environmental protection can replace oil substantially in other kinds
Paint, but due to powdery paints and the characteristic of pearl essence, the powder for preparing pearly-lustre powder content high using conventional preparation techniques is applied
Material is relatively difficult.This is caused by following reason：The preparation of powdery paints needs to be squeezed by the melting mixing of raw material
Go out, crush at a high speed, if adding pearl essence in this process, although it can preferably be bonded with powdery paints,
It is that melting mixing extrusion and high-speed breakage can all be damaged to pearl essence surface texture, it is impossible to show the effect of pearly-lustre.Will
Preferable pearl effect is reached, pearl essence must be added again after powdery paints is made.Powdery paints and pearl essence are all solid
Body particle, but the mica sheet of pearl essence is insulation, and chargeding performance is very poor.And the later stage spraying of powdery paints is all by quiet
Electric spray gun makes that powder particle is powered to be sprayed.Therefore pearl essence is added in powdery paints, in the spraying application in later stage
In due to powder particle it is different with pearl essence particle carried charge, film coated surface pearl essence skewness, appearance of film can be caused not
The problems such as stabilization.
Preparing the more method of the compound powdery paints research of pearl essence has three classes, and one is dry mixing process, with technical staff
Skill is simple, and the features such as equipment is simple, but dry-mixed rear pearlescent particles can not be sticked together with powder coating particles, so pearl
Light powder paint is unstable in electrostatic spraying, workpiece surface pearl essence skewness, and influence coating surface is attractive in appearance.And do
Mixed technique is difficult to prepare the compound powdery paints of pearly-lustre powder content high.For example Chinese patent CN103160181A, discloses one
Pearlescent powder paint and preparation method thereof is planted, Pearlescent powder paint of the invention is exactly by powder coating particles and silver powder pearl essence
Particle carries out dry-mixed preparation.
Second is bonding techniques, and this technique needs specific bonding equipment and sets different according to different powdery paints
Bonding process parameter.Compared to dry mixing process, pearly-lustre composite powder coatings prepared by bonding have more stable performance.Bonding work
Skill is that powdery paints is preheating into its softening point, is subsequently adding the skill that be sticked together for itself and powder coating particles by pearl essence
Art, therefore powdery paints two kinds of particles in electrostatic spraying will not separate, spraying effect is relatively stablized.But because powdery paints is every
The pearlescent particles that individual particle is capable of adhesion are limited, therefore after excessive pearlescent particles are added in bonding process, will
There is the problems such as bonding effect is poor, and effect is unstable after spraying.Bonding process is not suitable for equally preparing pearly-lustre content high yet
Powdery paints.Such as Chinese patent CN103146272A, discloses a kind of metal powder coating and its system for strengthening flash effect
Preparation Method, it applies the powdery paints that bonding techniques have prepared enhancing flash effect.Chinese patent CN103820010A,
A kind of aluminium section bar flash of light stereo wood pattern powdery paints and preparation method thereof and the spraying coating process of the powdery paints are disclosed, should
The wood grain powdery paints of flash effect has been prepared with bonding process.
The third is using unconventional preparation method.It is also that can to prepare pearly-lustre powder content powdery paints high most preferable
Method.Such as Chinese patent CN101302366, discloses a kind of metal powder coating and preparation method thereof and coating metal
Plate.Preparation method of the present invention is dissolved coating resin using organic solvent, is subsequently adding pigment and filler, is disperseed by high speed,
Add metallic pigments to be mixed, using the dry method of pressure atomization, obtain the metal that metallic pigments are uniformly wrapped up by resin
Powdery paints powder.The prior art that effectively solves of the invention is difficult to produce powered uniform metal powder coating.But due to
Organic solvent is employed in its technique, pollution, and organic solvent is caused to environment to a certain extent to part raw material
Performance can have an impact.
Supercritical CO is used in addition2The research that fluid technique prepares the powdery paints of difference in functionality is more, but because every
The function of individual coating is different, although all employ the same technology of preparing, but the formula design of powdery paints, raw material
With using all different.These patents have different technical essentials to solve different technical problems, therefore exist each other
Different technical schemes.Such as Chinese patent CN104559694A, discloses a kind of thermosetting ultrafine powder paint and its preparation
Method.It uses supercritical CO2Fluids process is made, and raw material include resin 30-70 parts；Curing agent 2-25 parts；Styrax
0.2-0.7 parts；Levelling agent 0.05-0.75 parts；Degasser 0.1-0.4 parts；Color stuffing 2.5-22.5 parts and antioxidant 0-5 parts.Powder
, at 10-20 μm, particle diameter distribution is uniform, geometric configuration is homogeneous, coating film thickness is between 30-50 μm for last coating particle diameter；Can apply
In there is the fields such as scumbling requirement, automobile finish or acrylic acid powder coatings.Chinese patent CN104109453A, discloses a kind of multiple
Combination functional form agricultural machinery clear top powder coatings and its production technology.The powdery paints includes the component of following mass parts：It is poly-
Ester/2-8 parts of acrylic resin compound, polyester resin 30-50 parts, epoxy modified acrylic resin 12-22 parts, nanometer glass
Powder 20-35 parts, crosslinking agent 1-5 parts, auxiliary agent 1-2.5 parts；Its preparation method uses supercritical carbon dioxide fluid method.The powder is applied
Material can be antiseptic and rustproof and with excellent weatherability, and its energy consumption in production process is small, efficiency high, reduces production and processing temperature.
Chinese patent CN104140746A, discloses a kind of compound functionalization infrared external reflection engineering machinery powdery paints and its production work
Skill.The powdery paints includes the component of following mass parts：2-8 parts of polyester/acrylic resin compound, polyester resin 30-50 parts,
Epoxy modified acrylic resin 10-20 parts, infrared reflecting paint 15-35 parts, crosslinking agent 1-5 parts, filler 8-18 parts, auxiliary agent 1-
2.5 parts；Its production technology uses supercritical carbon dioxide fluid method.The powdery paints had not only had antiseptic and rustproof but also with excellent
Weatherability, its energy consumption in production process is small, efficiency high, reduces production and processing temperature.Chinese patent CN105885499A, discloses one
Plant thermosetting scratch resistance open air low brightness paint powder and its preparation technology.This powdery paints mainly includes at least one containing epoxy radicals
Resin such as epoxy radicals acrylic resin, epoxy resin, triglycidyl isocyanurate and at least one carboxylic resin are such as
Carboxyl polyester resin, carboxyl acrylic resin composition.Outdoor low brightness paint powder of the invention is by the supercritical carbon dioxide
So that coating various composition fluidisation and prepare, it is good with scratch resistance, the features such as gloss can drop to 5%.
The content of the invention
It is an object of the invention to provide a kind of compound powdery paints of pearl essence, with pearly-lustre powder content it is high, charging property is good,
The characteristics of powder coating particles are microspheroidal, electrostatic spraying stabilization, hardness of film high, good weatherability, instead of the paint of Pearly-lustre type,
As using wider array of, more environmentally friendly application new material；Invention also provides the preparation of the compound powdery paints of pearl essence
Method, it is scientific and reasonable, simple and easy to apply.
The compound powdery paints of pearl essence of the present invention, is made up of the raw material of following percentage by weight：
The acid number of described poly terephthalic acid DOPCP is 28-40mgKOH/g.
Described quaternary ammonium salt charge regulating agent is 3- dodecanamide propyl trimethylammoniumethyl sulfuric acid methyl esters.
Described the structure of hindered amine light stabilizer is the Tinuvin 144 of BASF AG.
Described pigment is titanium dioxide pigment or charcoal blacks.
The preparation method of the compound powdery paints of pearl essence of the present invention is that raw material is put into supercritical reaction kettle
It is well mixed, CO in control reactor2Content, temperature, pressure and ejiction opening temperature, obtain final product.
Described CO2Content is 20-45wt%.
Described temperature is 45-75 DEG C.
Described pressure is 80-120Kg/cm2。
Described ejiction opening temperature is 55-60 DEG C.
Know-why of the invention is as follows：
(1) present invention uses supercritical CO2Fluid technique prepares the compound powdery paints of pearl essence, and tradition is different from completely
Preparation technology, can prepare that pearly-lustre powder content is high, the compound powdery paints of electrostatic spraying stabilization.
Be first to prepare powder coating particles because traditional handicraft prepares pearl essence type powdery paints, applied by powder
The raw material of material such as carry out melting mixing extrusion, crush at a high speed at the operation, due to there is temperature higher and stronger during this
Shearing force, pearl essence is easily broken and loses due pearl effect, and this process is not suitable for adding pearl essence.
But pearl essence is added again after powdery paints is made, because powdery paints and pearl essence are all solid particle, powdery paints is very
Difficult that pearly-lustre powder particles parcel is complete, two kinds of particles is essentially distinct.But the mica sheet of pearl essence is insulation, band
Electrical property is very poor.And the later stage spraying of powdery paints all makes that powder particle is powered to be sprayed by electrostatic gun.Therefore
Pearl essence is added in powdery paints, in the spraying application in later stage due to powder particle and pearl essence particle carried charge not
Together, with the increase of pearly-lustre powder content, film coated surface pearl essence skewness can be significantly caused, appearance of film is unstable etc. asks
Topic.
Using supercritical CO2Fluid technique prepares the compound powdery paints of pearl essence, due in CO2Reach supercriticality
When, the raw material of the compound powdery paints of pearl essence in autoclave are also fluid state, and various raw material and pearl essence can
Mixing well, whole process does not exist high temperature and high shear force, and after powdery paints sprays from nozzle, pearly-lustre powder particles can be with
By powdery paints, other raw material are preferably wrapped.This technology can prepare that pearly-lustre powder content is high, electrostatic spraying is steady
The compound powdery paints of fixed pearl essence.
(2) according to formula design and preparation technology feature in powdery paints of the present invention, with the addition of the adjustment of quaternary ammonium salt electric charge
Agent.Compared to traditional powdery paints, the compound powdery paints of pearl essence of the invention due to the pearl essence containing more amount, and
Pearl essence is the particle with mica sheet as main component, and its charging property is poor.Therefore applied to improve the compound powder of pearl essence
Material using electrostatic spraying when stability and charging property, this patent product formula design in, according to other raw material
With characteristic and compatibility, quaternary ammonium salt charge regulating agent is with the addition of.Quaternary ammonium salt charge regulating agent is cationic antistatic agent,
The moisture in air is adsorbed because it has surface active properties, surfactant produces polarization or ionizes, and is formed very thin
Conductive layer, formed electric charge conductive channel, so as to play a part of in powder coating electrostatic spraying electric charge adjustment, promote not
The stability of the compound powder coating electrostatic spraying of easily powered pearl essence.
(3) according to formula design and preparation technology feature in powdery paints of the present invention, with the addition of the structure of hindered amine light stabilization
Agent.The structure of hindered amine light stabilizer is the class light stabilizer with the structure of hindered amine, due to the structure of hindered amine have it is larger
Dielectric constant, polarity is larger, and polarization can be produced when composite powder coatings are using electrostatic spraying, so as to promote pearl essence compound
Powdery paints is powered, improves its electrostatic spraying stability.And the structure of hindered amine light stabilizer being capable of uvioresistant, hence it is evident that improve
The outdoor ageing-resistant performance of coating, thus played in the design of this patent pearl essence compound powder coating formulation it is dual and compared with
Important effect.
And quaternary ammonium salt charge regulating agent and the structure of hindered amine light stabilizer be all with this patent product formula other
Raw material are matched and the preferable material of compatibility, and negative effect will not be produced while its charging property and weather resistance is improved,
The compound powdery paints of pearl essence to this patent brings preferable combination property.
(4) due to the improvement of formula and technique, there is the compound powdery paints of this patent pearl essence pearl essence higher to contain
Amount.Pearl essence has preferable weather resistance and hardness higher, thus this patent the compound powder paint of pearl essence
Coating also have preferable weatherability and hardness, excellent combination property.
Pearly-lustre powder particles are partially or completely parcel during the present invention prepares the compound powdery paints of pearl essence, entirely
Powder coating particles are microspheroidal.
The present invention is designed to formula, from the good raw material of compatibility, and is difficult powered, electrostatic according to pearl essence
The characteristics of spraying is difficult is adjusted to formula, using supercritical CO2Fluid technique is prepared pearl essence and is wrapped up by powdery paints
Good, pearly-lustre powder content is high, and powdery paints charging property is good, electrostatic spraying stabilization, and hardness of film is high, good weatherability pearl essence is combined
Type powdery paints.The compound powdery paints excellent combination property of pearly-lustre powder content high of the invention, and VOC free discharge, tool
There is obvious environment-friendly advantage, the paint to replacing pearly-lustre powder content high has certain impetus.
The present invention compared with prior art, has the advantages that：
(1) the compound powdery paints of pearl essence of the invention is high containing pearl essence, and the coating after spraying can reach liquid bead
The surface effect of optical coating.
(2) pearl essence is wrapped by preferably in the compound powdery paints of pearl essence of the invention, powder coating particles and pearly-lustre
Powder particles will not be kept completely separate, electrostatic spraying stabilization, and pearl essence is evenly distributed in film.
(3) the compound powdery paints chargeding performance of pearl essence of the invention is good, and electrostatic spraying construction is easy, and sprays steady
It is fixed.
(4) the compound weathering resistance performance powder paint of pearl essence of the invention is than common Pearlescent powder paint outdoor weathe resistance energy
More preferable and hardness is bigger.
Specific embodiment
The present invention is described further with reference to embodiments.
Embodiment 1
Raw material composition is as follows, by weight percentage：
The acid number of poly terephthalic acid DOPCP is 28mgKOH/g.
Quaternary ammonium salt charge regulating agent is 3- dodecanamide propyl trimethylammoniumethyl sulfuric acid methyl esters.
The structure of hindered amine light stabilizer is the Tinuvin 144 of BASF AG.
Raw material is put into supercritical reaction kettle and is well mixed, CO in control reactor2Content is 38wt%, and temperature is 66
DEG C, pressure is 110Kg/cm2, ejiction opening temperature is 58 DEG C.Prepare pearly-lustre powder particles and be partially or completely parcel, entirely
Powder coating particles are the compound powdery paints of pearl essence of microspheroidal.
The product specific performance of embodiment 1 is shown in Table 1.
Embodiment 2
Raw material composition is as follows, by weight percentage：
The acid number of poly terephthalic acid DOPCP is 40mgKOH/g.
Quaternary ammonium salt charge regulating agent is 3- dodecanamide propyl trimethylammoniumethyl sulfuric acid methyl esters.
The structure of hindered amine light stabilizer is the Tinuvin 144 of BASF AG.
Raw material is put into supercritical reaction kettle and is well mixed, CO in control reactor2Content is 26wt%, and temperature is 52
DEG C, pressure is 95Kg/cm2, ejiction opening temperature is 56 DEG C.Prepare pearly-lustre powder particles and be partially or completely parcel, entirely
Powder coating particles are the compound powdery paints of pearl essence of microspheroidal.
The product specific performance of embodiment 2 is shown in Table 1.
Embodiment 3
Raw material composition is as follows, by weight percentage：
The acid number of poly terephthalic acid DOPCP is 30mgKOH/g.
Quaternary ammonium salt charge regulating agent is 3- dodecanamide propyl trimethylammoniumethyl sulfuric acid methyl esters.
The structure of hindered amine light stabilizer is the Tinuvin 144 of BASF AG.
Raw material is put into supercritical reaction kettle and is well mixed, CO in control reactor2Content is 42wt%, and temperature is 49
DEG C, pressure is 115Kg/cm2, ejiction opening temperature is 60 DEG C.Prepare pearly-lustre powder particles and be partially or completely parcel, entirely
Powder coating particles are the compound powdery paints of pearl essence of microspheroidal.
The product specific performance of embodiment 3 is shown in Table 1.
The embodiment 1-3 product correlated performance test results of table 1
As shown in Table 1, the compound powdery paints of pearl essence that embodiment 1-3 is obtained has that pearly-lustre powder content is high, charging property
The features such as good, electrostatic spraying stabilization, hardness of film high, good weatherability, combination property meets or better than country or industry mark
It is accurate.
Claims (10)
1. the compound powdery paints of a kind of pearl essence, it is characterised in that be made up of the raw material of following percentage by weight：
2. the compound powdery paints of pearl essence according to claim 1, it is characterised in that described poly terephthalic acid is new
The acid number of pentadiol ester is 28-40mgKOH/g.
3. the compound powdery paints of pearl essence according to claim 1, it is characterised in that described quaternary ammonium salt electric charge is adjusted
Whole dose is 3- dodecanamide propyl trimethylammoniumethyl sulfuric acid methyl esters.
4. the compound powdery paints of pearl essence according to claim 1, it is characterised in that described the structure of hindered amine light is steady
Determine the Tinuvin 144 that agent is BASF AG.
5. the compound powdery paints of pearl essence according to claim 1, it is characterised in that described pigment is titanium dioxide pigment
Or charcoal blacks.
6. the preparation method of any described compound powdery paints of pearl essence of a kind of claim 1-5, it is characterised in that by original
Material is well mixed in being put into supercritical reaction kettle, CO in control reactor2Content, temperature, pressure and ejiction opening temperature, obtain final product.
7. the preparation method of the compound powdery paints of pearl essence according to claim 6, it is characterised in that described CO2Contain
It is 20-45wt% to measure.
8. the preparation method of the compound powdery paints of pearl essence according to claim 6, it is characterised in that described temperature
It is 45-75 DEG C.
9. the preparation method of the compound powdery paints of pearl essence according to claim 6, it is characterised in that described pressure
It is 80-120Kg/cm2。
10. the preparation method of the compound powdery paints of pearl essence according to claim 6, it is characterised in that described ejection
Mouth temperature is 55-60 DEG C.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108299914A (en) * | 2018-02-02 | 2018-07-20 | 广西科技项目评估中心 | A kind of electrostatic additive, preparation method and its usage for powdery paints |
| CN116554768A (en) * | 2023-05-08 | 2023-08-08 | 上海彩立嵘新材料科技有限公司 | Preparation method of high-decorative colorful powder coating |
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| CN104140746A (en) * | 2014-07-28 | 2014-11-12 | 漳州三德利油漆涂料有限公司 | Composite type functional infrared reflection engineering machine powder coating and production technology thereof |
| CN104559694A (en) * | 2014-12-31 | 2015-04-29 | 杨培 | Thermosetting ultrafine powder coating and preparation method thereof |
| CN106634479A (en) * | 2016-12-30 | 2017-05-10 | 山东麦都孚新材料科技有限公司 | Extra weather-resistant micro-spherical powder coating used for metal coiled material and prepared through supercritical fluid technology and preparation method thereof |
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| CN108299914A (en) * | 2018-02-02 | 2018-07-20 | 广西科技项目评估中心 | A kind of electrostatic additive, preparation method and its usage for powdery paints |
| CN108299914B (en) * | 2018-02-02 | 2020-05-12 | 广西零到壹科技有限责任公司 | Electrostatic additive for powder coating, preparation method and application thereof |
| CN116554768A (en) * | 2023-05-08 | 2023-08-08 | 上海彩立嵘新材料科技有限公司 | Preparation method of high-decorative colorful powder coating |
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